Gents I have @ 50 .366 bullets and was wondering what they were designed for.

I will probably just use my normal charge of owder and just send these on thier way as a practice load,


Cal30

Are they jacked or cast? have not seen a jacked bullet that light
Dave

There were a couple 9.3 rimmed cartridges that were often used in combination guns in calibres like the 9.3x65R Collath or the 9.3x72 R. that used bullets in the 186 to 193 gr range.Pressures and velocity in these old calibres were quite low so it wouldn't make sense to drive then at velocities capable in a 9.3x62.

quote:

posted 14 April 2013 04:40Hide Post
Are they jacked or cast? have not seen a jacked bullet that light
Dave

Yes they are jacketed I believe they are or were made by RWS.


Cal30

QL lists a RWS 193 gr but gives the dia as .364 not .366.
Here QL data for IMR 4895

Cartridge          : 9.3 x 62
Bullet             : .364, 193, RWS CU-TMF
Useable Case Capaci: 66.619 grain H2O = 4.325 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : IMR 4895

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   88    54.00   2481    2636   31984   6537     88.8    1.353
-09.0   89    54.60   2508    2695   32985   6629     89.4    1.337
-08.0   90    55.20   2536    2755   34018   6719     89.9    1.321
-07.0   91    55.80   2564    2816   35085   6808     90.5    1.305
-06.0   92    56.40   2592    2877   36188   6896     91.0    1.289
-05.0   93    57.00   2620    2940   37328   6982     91.5    1.272
-04.0   94    57.60   2648    3002   38505   7067     92.0    1.254
-03.0   95    58.20   2675    3066   39723   7150     92.5    1.237
-02.0   96    58.80   2703    3130   40976   7232     93.0    1.220
-01.0   97    59.40   2731    3195   42264   7312     93.5    1.203
+00.0   98    60.00   2759    3261   43589   7390     93.9    1.186
+01.0   99    60.60   2787    3327   44954   7466     94.4    1.170
+02.0  100    61.20   2815    3394   46363   7541     94.8    1.154
+03.0  101    61.80   2843    3461   47818   7613     95.2    1.138
+04.0  102    62.40   2871    3530   49323   7684     95.6    1.123  ! Near Maximum !
+05.0  103    63.00   2898    3598   50877   7752     96.0    1.107  ! Near Maximum !

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     98    60.00   2915    3640   52647   7510     98.7    1.095  ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba     98    60.00   2563    2814   35076   6924     85.6    1.300

Norma also loaded 193grain .366 bullets in the 9,3x74R.

These bullets had a silver colored jacket and were flat nosed.

I bought a few boxes of them several years ago. They shot good, but I never killed anything with them.

Sellier&Bellot manufactures 193 grain SPFP bullets in .366. They are I think intended for the formerly very popular 9.3x72R even though this round is supposed to be .364. It seems that the .002 difference does not really matter because the jacket is soft. Besides, one encounters huge variations with 9.3x72R barrels, the load is still from the blackpowder area so before standardization at the beginning of the 20th century, every rifle maker basically did as he pleased. There are I learned even barrels around grooved for lead bullets.

I use these bullets for reduced roe deer loads in my 9.3x74R and the occasional boar. They kill pretty well and are cheap here.

Don't go too fast with the 9,3x62, these bullets are soft, around 700 m/s would be appropiate I think. You can use powders like SR4759, N110 or Trail Boss but don't double charge.

a friend of mine sent me some 200 gr. speer hot core a few years ago. I have been looking for load data. If any one else has info for these lower wt. bullets I would also appreciate it.

quote:

Yes they are jacketed I believe they are or were made by RWS.

DUK is spot-on above. He's well-informed and also a generous Fellow as he shared his loading data for the 9.3x72R with me and the SR-4759 loads shoot excellently with both the RWS & S&B bullets outa a vintage Break Open Single-Shot Sauer Diopter equipped Target rifle.


Lately, the 193 gr. silver plated bullets are RWS manufacture measuring .364" and the copper plated SPFP bullets are S&B, claiming on the package to be .366" (I have not measured either of them). They're both manufactured for the 9.3x72R (@ equivilent of 38-55) and due to the soft jackets lend themselves well to the odd-ball size tubes of yesteryear.

quote:

There are I learned even barrels around grooved for lead bullets.

Antique and usually not Nitro-Proofed are the heavily grooved older 9.3x72R Forester rifles that require either Round Nose or Flat Point Lead bullets and Black Powder loads.