If you are trying to determine a starting and stopping load using Quickload, do you find a powder charge that will get you close to the max pressure and then back off 10% as your low starting load?

I'm looking to begin development on the 80 grain Barnes TTSX for 243 Win. However, The Barnes #4 manual doesn't have loads for the 80 grain TTSX and I haven't received a response from an email I sent to Barnes regarding load data.

Thanks,

I use Quickload a lot, but I always refer to a reloading manual and usually defer to them for my starting loads. I have found Quickload to be reasonably accurate with most cases except those that are straight walled or close to it, like the 416 Rem Mag. With those cases, it tends to give faster velocities and higher pressures than actual. In one of the early printed Quickload instruction manuals, it actually stated this.

I recently worked up a load for my 8mm Rem Mag and Quickload came within 50 fps of the chrono readings (Oehler 35P).

quote:

Originally posted by David:
I use Quickload a lot, but I always refer to a reloading manual and usually defer to them for my starting loads.

Thanks for your response.

I understand this, but if you don't have a reloading manual to refer to then you ... ?

That's my question.

Greybrid, different folks have different methods. The general rule of thumb is to back of 10%. With quick load, you can set a "burn rate variation". Some guys will set this to 10%, and use this as their starting point. I typically set the burn rate variation to the minimum (3%), and back off what ever looks reasonable.

In the example you gave:

Cartridge : .243 Win.
Bullet : .243, 80, Barnes 'TTSX' BT 24338
Useable Case Capaci: 50.298 grain H2O = 3.266 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 59400 psi, or 409 MPa
or a maximum loading ratio or filling of 115 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

12 loads produced a Loading Ratio below user-defined minimum of 50%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 104.2 50.4 3.27 3407 98.6 59400 11906 1.072 ! Near Maximum !
Alliant Reloder-25 112.1 51.7 3.35 3404 99.8 59400 11562 1.066 ! Near Maximum !
Vihtavuori N570 115.0 56.2 3.64 3403 91.2 59396 12691 1.071 ! Near Maximum !
Norma MRP 2 114.7 53.2 3.45 3392 96.7 59400 12003 1.076 ! Near Maximum !
Vihtavuori N560 105.8 50.1 3.25 3386 95.4 59400 11957 1.069 ! Near Maximum !
Raufoss RA15 106.1 49.7 3.22 3370 97.4 59400 11628 1.073 ! Near Maximum !
Bofors RP5/NP ~approximation 106.1 49.7 3.22 3370 97.4 59400 11628 1.073 ! Near Maximum !
Alliant Reloder-22 106.1 49.7 3.22 3370 97.4 59400 11628 1.073 ! Near Maximum !
IMR 7828 110.2 49.6 3.22 3368 95.8 59400 11597 1.061 ! Near Maximum !
IMR 7828 SSC 104.2 49.6 3.22 3368 95.8 59400 11597 1.061 ! Near Maximum !
Winchester WXR 108.9 50.0 3.24 3367 97.3 59400 11623 1.074 ! Near Maximum !
Ramshot Magnum (Big Boy) 107.9 53.6 3.47 3365 96.4 59400 11700 1.066 ! Near Maximum !
SNPE Vectan SP 12 108.1 53.5 3.47 3364 96.5 59400 11678 1.066 ! Near Maximum !
Accurate MAGPRO 106.0 52.3 3.39 3364 93.9 59400 11886 1.077 ! Near Maximum !
PB Clermont PCL 517 108.3 53.6 3.47 3364 96.4 59400 11689 1.066 ! Near Maximum !
ADI AR 2213 105.1 49.3 3.19 3351 95.6 59400 11462 1.060 ! Near Maximum !
Somchem S365 100.2 46.2 2.99 3346 100.0 59400 10288 1.081 ! Near Maximum !
Alliant Reloder-17 90.6 44.1 2.86 3345 100.0 59400 10487 1.060 ! Near Maximum !
Winchester 760 92.8 45.5 2.95 3332 98.5 59400 10966 1.077 ! Near Maximum !
Hodgdon H414 92.8 45.5 2.95 3332 98.5 59400 10966 1.077 ! Near Maximum !
Ramshot Hunter 98.2 47.0 3.05 3332 99.1 59400 10925 1.076 ! Near Maximum !


I would probaby start with RL22:

Cartridge : .243 Win.
Bullet : .243, 80, Barnes 'TTSX' BT 24338
Useable Case Capaci: 50.298 grain H2O = 3.266 cm³
Cartridge O.A.L. L6: 2.710 inch = 68.83 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.042% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-10.4 92 43.00 2878 1472 36800 9950 89.4 1.317
-09.4 93 43.50 2914 1509 38100 10100 90.2 1.299
-08.3 94 44.00 2950 1546 39450 10246 90.9 1.282
-07.3 95 44.50 2987 1585 40853 10390 91.6 1.265
-06.3 96 45.00 3023 1624 42308 10529 92.3 1.248
-05.2 97 45.50 3060 1663 43827 10665 92.9 1.231
-04.2 98 46.00 3096 1703 45403 10796 93.5 1.213
-03.1 99 46.50 3133 1743 47042 10923 94.1 1.192
-02.1 100 47.00 3169 1784 48749 11046 94.7 1.173
-01.0 101 47.50 3206 1826 50524 11164 95.3 1.154
+00.0 102 48.00 3243 1868 52373 11277 95.8 1.136 ! Near Maximum !
+01.0 103 48.50 3280 1911 54298 11385 96.3 1.117 ! Near Maximum !
+02.1 105 49.00 3316 1954 56304 11488 96.8 1.099 ! Near Maximum !
+03.1 106 49.50 3353 1997 58395 11585 97.2 1.082 ! Near Maximum !
+04.2 107 50.00 3390 2041 60573 11677 97.6 1.064 !DANGEROUS LOAD-DO NOT USE!
+05.2 108 50.50 3426 2085 62846 11762 98.0 1.047 !DANGEROUS LOAD-DO NOT USE!

In this case, backing off the powder charge 10% would put you around 44 grains, and looks like a reasonable starting point. I'd still check it against any manuals I had avaliable. If a major loading manual was telling me this would be unsafe with a standard cup and core bullet, I'd start lower. A little powder and a few bullets is a small price to pay for an extra magin of safety.

Antelope Sniper,

Thanks for the comments.

I've been looking at using a faster burning powder versus a slower powder like RL-22 because of the light weight of the 80 grain bullet. I'm looking at a powder in the RL-15, Big Game or IMR 4064 range; or possibly even faster in the varget and IMR4895 range. So, here are some numbers I was crunching look at some starting loads.

Taking a look at Hornady's newest manual #8 with their 80 grain GMX bullet they recommend using the 85-87 grain data. Therefore, using RL-15 their maximum load is 37.5 gr. When you look at QuickLoad using this 37.5 gr load, it computes only 45.6K psi; therefore, it leads me to believe this is on the lower end of the spectrum (rate range) versus the upper. If you appraoch 60K psi, then your max load should be in the 41.5 gr range according to QuickLoad. Thereby, subtracting the 10% for a starting load, puts you at 37.35 gr, which is the max load in the Hornady manual.

I took a look at Alliant's website and wouldn't you know it, they don't have RL-15 listed in their recommendations for the 243 and a Speer 80 gr SP bullet. They have RL-10x and RL-17, but not the middle of the road between these two powders. They list the max load for RL-17 to be 44.0 gr and RL-10x to be 35 gr, so based upon these data I'm tending to lean towards what QuickLoad is telling me regarding a max load of around 41.5 gr for RL-15.

The other manuals I have(Speer, Nosler, etc.) don't have a load recommendation for the 80 gr bullets and RL-15; therefore, the Hornady manual is the only one I can really lean on; however, there is quite a difference between what the manual says and what QuickLoad is telling me.

Hence, my final thoughts on RL-15 should be a starting load of 37.4 gr and max of 41.5 gr.

Thoughts?

Thanks again!

Hey AS, Try this.
Highlight and copy your QL page to Clipboard.
When posting type.
Square bracket left ([)
code
Square bracket right (])

Square bracket left ([)
/code
Square bracket right (])

past your copied page between the first SB right and the second SB left. The results look like this.

 Cartridge          : .243 Win.
Bullet             : .243, 80, Barnes 'TTSX' BT 24338
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length      : 24.0 inch or 609.6 mm
Powder             : Alliant Reloder-22

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-20.0   85    39.76   2647    1245   29467   8919     84.1    1.434
-18.0   87    40.75   2717    1312   31531   9245     85.8    1.397
-16.0   89    41.75   2788    1381   33754   9563     87.5    1.361
-14.0   91    42.74   2860    1453   36149   9872     89.0    1.326
-12.0   93    43.74   2931    1526   38731  10170     90.5    1.291
-10.0   95    44.73   3004    1603   41517  10454     91.9    1.257
-08.0   98    45.72   3076    1681   44526  10724     93.2    1.223
-06.0  100    46.72   3149    1761   47778  10977     94.4    1.184
-04.0  102    47.71   3222    1844   51283  11213     95.5    1.146  ! Near Maximum !
-02.0  104    48.71   3295    1928   55114  11428     96.5    1.110  ! Near Maximum !
+00.0  106    49.70   3368    2015   59255  11622     97.4    1.075  ! Near Maximum !
+02.0  108    50.69   3441    2103   63753  11794     98.1    1.041  !DANGEROUS LOAD-DO NOT USE!
+04.0  110    51.69   3513    2193   68648  11940     98.8    1.008  !DANGEROUS LOAD-DO NOT USE!
+06.0  112    52.68   3586    2284   73938  12061     99.3    0.976  !DANGEROUS LOAD-DO NOT USE!
+08.0  115    53.68   3658    2377   79674  12154     99.6    0.945  !DANGEROUS LOAD-DO NOT USE!
+10.0  117    54.67   3730    2471   85918  12219     99.9    0.915  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba    106    49.70   3551    2240   72410  11500    100.0    0.988  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    106    49.70   3125    1735   47522  11057     89.9    1.186 

and this

 Cartridge          : .243 Win.
Bullet             : .243, 80, Barnes 'TTSX' BT 24338
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length      : 24.0 inch or 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 59000 psi, or 406 MPa

or a maximum loading ratio or filling of 110 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
Norma MRP                          104.0     50.3     3.26    3400    98.6    59000   11892   1.075  ! Near Maximum !
Vihtavuori N560                    105.6     50.0     3.24    3379    95.3    59000   11936   1.072  ! Near Maximum !
Raufoss RA15                       105.9     49.6     3.22    3363    97.3    59000   11611   1.077  ! Near Maximum !
Alliant Reloder-22                 105.9     49.6     3.22    3363    97.3    59000   11611   1.077  ! Near Maximum !
Bofors RP5/NP ~approximation       105.9     49.6     3.22    3363    97.3    59000   11611   1.077  ! Near Maximum !
IMR 7828 SSC                       104.1     49.6     3.21    3361    95.7    59000   11578   1.064  ! Near Maximum !
IMR 7828                           110.0     49.6     3.21    3361    95.7    59000   11578   1.064  ! Near Maximum !
Winchester WXR                     108.7     49.9     3.23    3360    97.2    59000   11606   1.078  ! Near Maximum !
Ramshot Magnum (Big Boy)           107.7     53.5     3.46    3358    96.3    59000   11685   1.069  ! Near Maximum !
SNPE Vectan SP 12                  108.0     53.4     3.46    3357    96.4    59000   11663   1.069  ! Near Maximum !
Accurate MAGPRO                    105.8     52.2     3.38    3357    93.7    59000   11864   1.081  ! Near Maximum !
PB Clermont PCL 517                108.1     53.5     3.47    3357    96.3    59000   11673   1.069  ! Near Maximum !
ADI AR 2213                        104.9     49.2     3.19    3344    95.5    59000   11442   1.063  ! Near Maximum !
Somchem S365                       100.0     46.1     2.99    3340   100.0    59000   10282   1.084  ! Near Maximum !
Alliant Reloder-17                  90.4     44.0     2.85    3339   100.0    59000   10478   1.063  ! Near Maximum !
Hodgdon H4350                       97.9     45.1     2.92    3338    99.3    59000   10845   1.068  ! Near Maximum !
Alliant Reloder-25                 110.0     50.7     3.29    3334    99.4    55379   11468   1.100  ! Near Maximum !
Ramshot Hunter                      98.0     46.9     3.04    3325    99.1    59000   10911   1.079  ! Near Maximum !
Winchester 760                      92.6     45.4     2.94    3325    98.5    59000   10949   1.080  ! Near Maximum !
ADI AR 2209                        101.9     47.0     3.04    3323    97.0    59000   11025   1.066  ! Near Maximum !
IMR 4350                           100.3     44.5     2.88    3321    98.8    59000   10777   1.073  ! Near Maximum !
Alliant Reloder-19                 102.4     47.5     3.08    3320    97.1    59000   11081   1.074  ! Near Maximum !
Rottweil R905                      107.0     49.2     3.19    3319    95.2    59000   11207   1.078  ! Near Maximum !
Norma URP                           97.6     44.8     2.90    3317    99.8    59000   10600   1.083  ! Near Maximum !
Bofors RP19 ~approximation          97.6     44.8     2.90    3316    99.8    59000   10597   1.083  ! Near Maximum !
ADI AP 2214                        108.6     52.3     3.39    3315    95.7    59000   11218   1.066  ! Near Maximum !
Vihtavuori N550                     94.7     44.9     2.91    3314    99.7    59000   10699   1.088  ! Near Maximum !
Bofors RP14 ~approximation         103.1     47.8     3.10    3311    97.1    59000   10990   1.075  ! Near Maximum !
Accurate 4350                      101.3     44.9     2.91    3311    99.8    59000   10597   1.100  ! Near Maximum !
Ramshot BigGame                     91.1     43.6     2.83    3303   100.0    59000   10255   1.080  ! Near Maximum !
Hodgdon H414                        90.2     44.6     2.89    3302    98.4    59000   10788   1.087  ! Near Maximum !
SNPE Vectan SP 11                   91.2     43.7     2.83    3301   100.0    59000   10239   1.080  ! Near Maximum !
Norma 204                           97.1     46.5     3.01    3295    96.8    59000   10801   1.074  ! Near Maximum !
Bofors RP4 ~approximation          100.3     46.5     3.01    3295    96.8    59000   10801   1.074  ! Near Maximum !
Raufoss RA4                        100.3     46.5     3.01    3295    96.8    59000   10801   1.074  ! Near Maximum !
IMR 4831                           102.4     45.5     2.95    3294    99.9    59000   10369   1.093  ! Near Maximum !
Bofors RP11 ~approximation          88.8     41.2     2.67    3291   100.0    59000   10196   1.084  ! Near Maximum !
Alliant Reloder-15                  88.8     41.2     2.67    3291   100.0    59000   10196   1.084  ! Near Maximum !
Raufoss RA11                        88.8     41.2     2.67    3291   100.0    59000   10196   1.084  ! Near Maximum !
Norma 203B                          89.2     41.4     2.68    3287   100.0    59000   10105   1.086  ! Near Maximum !
Hodgdon H4831                      107.7     48.5     3.14    3280    94.8    59000   10771   1.073  ! Near Maximum !
Hodgdon H4831 SC                   103.5     48.5     3.14    3280    94.8    59000   10771   1.073  ! Near Maximum !
Hodgdon Hybrid 100V                103.7     45.0     2.91    3280   100.0    59000    9801   1.081  ! Near Maximum !
Somchem S385                       102.6     48.1     3.12    3279    98.0    59000   10649   1.094  ! Near Maximum !
Winchester 748                      81.6     40.7     2.64    3276   100.0    59000    9639   1.080  ! Near Maximum !
IMR 4320                            90.8     41.4     2.68    3275   100.0    59000    9834   1.069  ! Near Maximum !
Hodgdon BL-C2                       83.9     42.4     2.75    3275   100.0    59000    9908   1.090  ! Near Maximum !
Hodgdon H380                        90.1     42.7     2.77    3275    99.6    59000   10259   1.090  ! Near Maximum !
Norma 203 old                       90.5     42.4     2.75    3272   100.0    59000    9916   1.100  ! Near Maximum !
IMR 4895                            90.6     40.6     2.63    3267    99.7    59000    9911   1.066  ! Near Maximum !
PB Clermont PCL 516                 86.9     42.9     2.78    3266    99.6    59000   10126   1.081  ! Near Maximum !
Rottweil R903                       92.5     42.4     2.75    3266   100.0    59000    9849   1.100  ! Near Maximum !
Lovex-S0701                         97.1     44.5     2.89    3265    98.6    59000   10406   1.093  ! Near Maximum !
SNPE Vectan SP 9                    86.7     41.5     2.69    3263   100.0    59000    9846   1.080  ! Near Maximum !
Somchem S355                        92.6     42.0     2.72    3262   100.0    59000    9853   1.093  ! Near Maximum !
IMR 3031                            88.2     38.2     2.48    3261   100.0    59000    9222   1.084  ! Near Maximum !
Winchester Supreme 780             100.9     49.3     3.20    3260    96.9    59000   10464   1.080  ! Near Maximum !
Rottweil R904                      101.0     46.2     2.99    3260    95.7    59000   10484   1.076  ! Near Maximum !
Vihtavuori N165                    107.9     49.5     3.21    3256    97.6    59000   10338   1.085  ! Near Maximum !
Somchem S361                        98.6     48.7     3.16    3256    98.1    59000   10378   1.093  ! Near Maximum !
Hodgdon VARGET                      91.6     41.1     2.66    3255    99.9    59000    9827   1.073  ! Near Maximum !
ADI AR 2208                         91.3     41.1     2.66    3255    99.9    59000    9827   1.073  ! Near Maximum !
Vihtavuori N530                     83.0     38.7     2.51    3255   100.0    59000    9538   1.077  ! Near Maximum !
PB Clermont PCL 507                 83.6     40.4     2.62    3254   100.0    59000    9591   1.080  ! Near Maximum !
Ramshot TAC                         81.3     40.3     2.61    3253   100.0    59000    9571   1.080  ! Near Maximum !
IMR 4064                            92.2     40.4     2.62    3250   100.0    59000    9686   1.077  ! Near Maximum !
Lovex-S0651                         96.0     43.5     2.82    3248    99.2    59000   10095   1.092  ! Near Maximum !
Somchem S321                        81.9     40.9     2.65    3247   100.0    59000    9582   1.088  ! Near Maximum !
Rottweil R907                       94.9     43.2     2.80    3246    97.9    59000   10223   1.086  ! Near Maximum !
IMR 4007 SSC                        91.9     43.2     2.80    3245    97.9    59000   10216   1.086  ! Near Maximum !
Lovex-S0621                         89.8     40.5     2.63    3243   100.0    59000    9514   1.092  ! Near Maximum !
Accurate 2520                       85.7     41.0     2.65    3243   100.0    59000    9359   1.101  ! Near Maximum !
Hodgdon H4895                       91.3     40.9     2.65    3243   100.0    59000    9303   1.076  ! Near Maximum !
Somchem S341                        85.1     42.4     2.75    3243   100.0    59000    9595   1.083  ! Near Maximum !
Norma 201                           83.5     39.6     2.56    3237   100.0    59000    9493   1.093  ! Near Maximum !
Accurate 4064                       94.1     40.8     2.64    3235   100.0    59000    9332   1.119  ! Near Maximum !
Vihtavuori N160                    107.7     47.9     3.10    3234    95.6    59000   10246   1.081  ! Near Maximum !
SNPE Vectan SP 10                   77.8     38.5     2.50    3233   100.0    59000    9179   1.081  ! Near Maximum !
PB Clermont PCL 508                 77.7     38.6     2.50    3232   100.0    59000    9165   1.081  ! Near Maximum !
Hodgdon H335                        78.1     39.5     2.56    3231   100.0    59000    9181   1.082  ! Near Maximum !
Hodgdon H322                        82.8     37.3     2.42    3229   100.0    59000    8987   1.075  ! Near Maximum !
ADI AR 2219                         77.8     37.3     2.42    3229   100.0    59000    8987   1.075  ! Near Maximum !
SNPE Vectan Sp 7                    79.7     39.6     2.57    3228   100.0    59000    9280   1.100  ! Near Maximum !
Norma 202                           86.5     39.4     2.56    3228   100.0    59000    9166   1.088  ! Near Maximum !
Rottweil R902                       88.9     39.7     2.57    3227   100.0    59000    9380   1.094  ! Near Maximum !
Norma MRP 2                        110.0     51.0     3.30    3225    94.4    50444   11544   1.158
Vihtavuori N540                     88.6     41.5     2.69    3220   100.0    59000    9238   1.090  ! Near Maximum !
Ramshot X-Terminator                76.3     37.9     2.45    3219   100.0    59000    8987   1.082  ! Near Maximum !
Accurate 2495                       87.6     38.4     2.49    3217   100.0    59000    9034   1.122  ! Near Maximum !
Vihtavuori N150                     97.6     42.7     2.77    3217   100.0    59000    9243   1.091  ! Near Maximum !
Accurate 2460                       80.7     40.1     2.60    3216   100.0    59000    9173   1.101  ! Near Maximum !
Lovex-S0601                         87.0     39.2     2.54    3215   100.0    59000    9292   1.073  ! Near Maximum !
ADI AR 2210                         79.3     38.0     2.46    3214   100.0    59000    9080   1.076  ! Near Maximum !
Rottweil R901                       85.3     37.6     2.43    3212   100.0    59000    9080   1.101  ! Near Maximum !
Nitrochemie A/S 0300                75.0     35.7     2.31    3211   100.0    59000    8711   1.082  ! Near Maximum !
Accurate 2230                       79.5     39.5     2.56    3210   100.0    59000    9069   1.095  ! Near Maximum !
Lovex-D0731                         79.6     39.3     2.55    3208   100.0    59000    9103   1.079  ! Near Maximum !
Accurate 3100                      110.0     48.2     3.13    3206    98.6    55240   10328   1.141  ! Near Maximum !
Accurate 2200                       77.1     36.3     2.35    3205   100.0    59000    8862   1.070  ! Near Maximum ! 

quote:

..... or IMR 4064 range

Which isn't such a bad place to be with the .243 Winchester & 80-85 gr. bullets, either. 39.0 grs. of IMR-4064 & this bullet weight combo resulted in some outstanding loads.

The usual caveat applies - work up.

G-B, steve has give you some really good insight into QuickLoad, here too. Bullet length & cartridge O.A.L. an important factor in these calculations, too.

quote:

Originally posted by graybird:

I'm looking to begin development on the 80 grain Barnes TTSX for 243 Win. However, The Barnes #4 manual doesn't have loads for the 80 grain TTSX and I haven't received a response from an email I sent to Barnes regarding load data.

Thanks,

Don't mean to spoil your QL fun, but Barnes has data for the 80gr TTSX on their website.

http://www.barnesbullets.com/i...243WinchesterWeb.pdf

Bullet Weight: 80 gr Case Trim Length: 2.035" S.D. 0.194
Bullet Style: TTSX BT Primer: Fed 210 B.C. 0.331
COAL: 2.610" Barrel Length: 24"
Case: Winchester Twist Rate: 1:10"
Charge Velocity Charge Velocity Load
Powder (grains) (fps) (grains) (fps) Density (%)
RL 17 41.5 3166 45.5 3467 92
♦ H4350 41.5 3159 45.5 3398 92

Steve, thanks for the advice.
That gives it a great looks. I'll try it next time and hope I don't screw it up!

quote:

Originally posted by wrongtarget:

quote:

Originally posted by graybird:

I'm looking to begin development on the 80 grain Barnes TTSX for 243 Win. However, The Barnes #4 manual doesn't have loads for the 80 grain TTSX and I haven't received a response from an email I sent to Barnes regarding load data.

Thanks,

Don't mean to spoil your QL fun, but Barnes has data for the 80gr TTSX on their website.

http://www.barnesbullets.com/i...243WinchesterWeb.pdf

Bullet Weight: 80 gr Case Trim Length: 2.035" S.D. 0.194
Bullet Style: TTSX BT Primer: Fed 210 B.C. 0.331
COAL: 2.610" Barrel Length: 24"
Case: Winchester Twist Rate: 1:10"
Charge Velocity Charge Velocity Load
Powder (grains) (fps) (grains) (fps) Density (%)
RL 17 41.5 3166 45.5 3467 92
♦ H4350 41.5 3159 45.5 3398 92

Yeah, but I don't have either RL-17 or H4350 on my bench and would like to use something already in stock.

Thanks though!

There is quite a lot of data online from the powder or bullet folks these days....

I would be particularly careful of reduced loads of slow powder in large cases. That's a situation in which I don't like to start below 40k psi, if other data isn't available.

When I'm building reduced loads with faster powders, I've found keeping pressures between 30k and 40k yields good performance and solid safe loading.....made easier if load density is high enough to prevent any chance of a double charge.

Cheers,

Dan