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| One of Us |
I am wondering if someone here would be kind enough to do a Quick Load for me so that I can know what my PSI is. There are NO signs of excessive pressure but since I am getting 3,084FPS with a 168gr bullet it sounds too good to be true! 7mm Remington Mag with 26" Benchmark 5R Barrel 168gr Nosler Accubond Lr's 50/1000 off lands 71gr of Reloader#25 I also tried a Max load 79.5gr of Reloader#33 and it was even faster at 3,114FPS, but what bothers me is that it is a 106.2% compression load and I had to screw my die down 3 times to finally seat each bullet, so I am apprehensive about using it. My bullets didn't "Grow" over a few days until I shot them, but I wonder what will happen in extreme temps. Which way would you go and any advice is appreciated! BTW They are both equally accurate so I rule accuracy out of my choice. | ||
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| one of us |
Nosler and Alliant list 70gr of R-25 as max for their 160gr bullet. You are over by a full grain with a heavier 168gr bullet. QL is not magic and is only an educated guess, here is what it says about your load. If this were my load and My rifle I would consider this QL calculation Accurate. Cartridge : 7 mm Rem. Mag.(CIP) Bullet : .284, 168, Nosler Accubond LR 58623 Cartridge O.A.L. L6: 3.290 inch or 83.57 mm Barrel Length : 26.0 inch or 660.4 mm Powder : Alliant Reloder-25 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 83 56.80 2507 2344 32576 10534 98.4 1.679 -18.0 85 58.22 2568 2461 34858 10769 99.0 1.634 -16.0 87 59.64 2630 2579 37302 10977 99.5 1.589 -14.0 89 61.06 2690 2700 39923 11157 99.9 1.538 -12.0 91 62.48 2751 2822 42735 11307 100.0 1.490 -10.0 93 63.90 2810 2945 45754 11432 100.0 1.443 -08.0 95 65.32 2869 3070 48997 11553 100.0 1.399 -06.0 98 66.74 2927 3195 52485 11670 100.0 1.356 -04.0 100 68.16 2984 3321 56237 11784 100.0 1.314 ! Near Maximum ! -02.0 102 69.58 3041 3449 60279 11895 100.0 1.274 ! Near Maximum ! +00.0 104 71.00 3097 3578 64636 12001 100.0 1.236 !DANGEROUS LOAD-DO NOT USE! +02.0 106 72.42 3153 3708 69299 12104 100.0 1.199 !DANGEROUS LOAD-DO NOT USE! +04.0 108 73.84 3208 3840 74296 12202 100.0 1.164 !DANGEROUS LOAD-DO NOT USE! +06.0 110 75.26 3264 3973 79666 12296 100.0 1.130 !DANGEROUS LOAD-DO NOT USE! +08.0 112 76.68 3319 4108 85441 12386 100.0 1.097 !DANGEROUS LOAD-DO NOT USE! +10.0 114 78.10 3374 4245 91663 12470 100.0 1.065 !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 104 71.00 3200 3820 79176 11592 100.0 1.144 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 104 71.00 2938 3221 51204 12582 99.9 1.360 | |||
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| One of Us |
Thanks Steve! I am definitely going to back off to 70gr Too good to be true, but I know allot of guys that go over max saying that for liability sake the max psi is low. I am getting 3,114 anyway with 79.5gr of RL-33 but it is a 106.2% compressed load so I was trying out other options. My bullets are not"growing" out of the cases so I think I am OK with it...I put a few in the freezer then in the sun and back to room temp and got same COAL so guess it's ok What would you do if it were your gun?? | |||
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| one of us |
Shoot it. You are still under 65K and I see little reason to bring any handload in a modern action rifle down to 60K or less when 65K is accepted for many a cartridge. | |||
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one of us |
If the load was accurate and I had no pressure signs I would keep it. Check to make sure I don't have a real short case life. QL is simply another data point. I have a several loads that are a gr or two above book max. As usual just my $.02 Paul K | |||
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Check case life by loading a couple at least 10 times. If the primer pocket stays tight your load is ok for that lot of brass. | |||
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| One of Us |
That's great news for me fellas! I am going to shoot it a bit more then and see what happens with cases I am getting 3,114fps with 79.5gr of RL-33 so I have two good prospects to mess with | |||
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| one of us |
Cartridge : 7 mm Rem. Mag.(CIP) Bullet : .284, 168, Nosler Accubond LR 58623 Cartridge O.A.L. L6: 3.290 inch or 83.57 mm Barrel Length : 26.0 inch or 660.4 mm Powder : Alliant Reloder-33 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 84 63.60 2363 2083 27894 10651 83.8 1.790 -18.0 86 65.19 2434 2210 29991 11086 85.7 1.740 -16.0 88 66.78 2505 2342 32268 11512 87.5 1.691 -14.0 90 68.37 2578 2479 34741 11923 89.2 1.643 -12.0 93 69.96 2651 2622 37432 12319 90.8 1.591 -10.0 95 71.55 2725 2770 40361 12695 92.4 1.535 -08.0 97 73.14 2800 2924 43561 13050 93.8 1.480 -06.0 99 74.73 2875 3083 47055 13380 95.0 1.427 -04.0 101 76.32 2950 3247 50881 13683 96.2 1.375 -02.0 103 77.91 3026 3417 55079 13955 97.2 1.325 ! Near Maximum ! +00.0 105 79.50 3103 3591 59689 14195 98.0 1.278 ! Near Maximum ! +02.0 107 81.09 3179 3770 64775 14398 98.7 1.231 !DANGEROUS LOAD-DO NOT USE! +04.0 109 82.68 3255 3953 70392 14563 99.3 1.186 !DANGEROUS LOAD-DO NOT USE! +06.0 112 84.27 3332 4141 76577 14688 99.7 1.143 !DANGEROUS LOAD-DO NOT USE! +08.0 114 85.86 3408 4333 83395 14769 99.9 1.101 !DANGEROUS LOAD-DO NOT USE! +10.0 116 87.45 3485 4530 90945 14805 100.0 1.060 !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 105 79.50 3291 4039 75749 13824 100.0 1.160 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 105 79.50 2845 3018 46241 13509 90.0 1.430 | |||
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| One of Us |
SR4759, just curious, why 10 times? Why not 5 or 3 or...whatever? AIU | |||
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Steve thanks so much for that! That's great news for me...over 3,100fps and not even near 62,000psi....faster than the RL-25 with allot less pressure. I am going to see what I can do and try to use the 33 instead of 25. The 33 is a 106.2% compression load but my bullets are not "growing" from the case neck and I even put a few in the freezer, then in the sun for an hour and when I brought them back in the house and back to room temp, I measured them and they were the same COAL from when I loaded them....so hopefully I'm OK. This is why I resisted getting into Reloading! I knew that I would become obsessed with it and this is exactly what happened...putting rounds in the freezer! I am having a good time however! Would you go with the 33 or play around a bit with both? Happy Thanksgiving to you ALL! Frank | |||
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