Load Specifications
Load data in caliber .240 Weath. Mag. with .243 | 79gr | Peregrine VLR-5 bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 56,608 psi | 89% | 3274 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,231 psi | 88% | 3297 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,071 psi | 86% | 3297 fps | 96.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,979 psi | 75% | 3235 fps | 97.1% |
| Accurate 4064 | <<locked>> | 88% | 56,710 psi | 89% | 3353 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 53,867 psi | 84% | 3386 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 84% | 56,289 psi | 88% | 3389 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 57,624 psi | 90% | 3389 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 3422 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,245 psi | 87% | 3337 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,434 psi | 88% | 3307 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,043 psi | 89% | 3527 fps | 99.9% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,521 psi | 87% | 3419 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,534 psi | 85% | 3356 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,897 psi | 86% | 3379 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,882 psi | 86% | 3455 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,376 psi | 88% | 3491 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 3406 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,440 psi | 71% | 3268 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,388 psi | 82% | 3478 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,826 psi | 89% | 3406 fps | 99.7% |
| Bofors RP3 | <<locked>> | 88% | 55,332 psi | 87% | 3369 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,056 psi | 86% | 3337 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,521 psi | 89% | 3317 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,911 psi | 86% | 3356 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,057 psi | 88% | 3386 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 94% | 56,681 psi | 89% | 3445 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 92% | 56,782 psi | 89% | 3409 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 56,898 psi | 89% | 3402 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,027 psi | 86% | 3373 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,522 psi | 90% | 3442 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,682 psi | 90% | 3488 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 56% | 2159 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,737 psi | 86% | 3343 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,334 psi | 90% | 3386 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,101 psi | 89% | 3376 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,797 psi | 89% | 3353 fps | 97.8% |
| IMR 4350 | <<locked>> | 96% | 56,101 psi | 88% | 3369 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,898 psi | 89% | 3376 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 54,404 psi | 85% | 3376 fps | 99.4% |
| IMR 4895 | <<locked>> | 86% | 56,347 psi | 88% | 3415 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 55,245 psi | 87% | 3337 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,579 psi | 89% | 3360 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,419 psi | 87% | 3310 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 56,985 psi | 89% | 3369 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,666 psi | 89% | 3369 fps | 98.8% |
| Lovex S070 | <<locked>> | 94% | 54,534 psi | 85% | 3350 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 54,665 psi | 86% | 3323 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,680 psi | 87% | 3327 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,128 psi | 85% | 3363 fps | 99.8% |
| Norma 204 | <<locked>> | 96% | 57,276 psi | 90% | 3428 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 51,416 psi | 81% | 3422 fps | 96.8% |
| Norma URP | <<locked>> | 96% | 56,550 psi | 89% | 3438 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 55,085 psi | 86% | 3389 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 55,782 psi | 87% | 3432 fps | 98.5% |
| Ramshot TAC | <<locked>> | 82% | 55,477 psi | 87% | 3346 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,492 psi | 87% | 3369 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,332 psi | 57% | 2211 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,289 psi | 88% | 3366 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,767 psi | 87% | 3458 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,970 psi | 88% | 3494 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 53,954 psi | 85% | 3406 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,884 psi | 89% | 3510 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 82% | 55,535 psi | 87% | 3310 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,317 psi | 87% | 3323 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,172 psi | 86% | 3363 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,679 psi | 84% | 3386 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 92% | 55,056 psi | 86% | 3337 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,666 psi | 89% | 3369 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,579 psi | 89% | 3360 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,985 psi | 89% | 3369 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,534 psi | 85% | 3350 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,276 psi | 90% | 3432 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,143 psi | 85% | 3323 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,955 psi | 86% | 3353 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,115 psi | 88% | 3264 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,898 psi | 89% | 3258 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,826 psi | 89% | 3314 fps | 97.9% |
| Somchem S335 | <<locked>> | 84% | 55,419 psi | 87% | 3251 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,795 psi | 84% | 3310 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 55,390 psi | 87% | 3363 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,608 psi | 87% | 3442 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 3363 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 84% | 56,565 psi | 89% | 3248 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,622 psi | 87% | 3287 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,362 psi | 88% | 3304 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,087 psi | 89% | 3337 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,259 psi | 87% | 3373 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 82% | 55,448 psi | 87% | 3330 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,650 psi | 86% | 3294 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,360 psi | 85% | 3373 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,633 psi | 79% | 3360 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,390 psi | 87% | 3340 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,115 psi | 88% | 3386 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,014 psi | 89% | 3451 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,843 psi | 64% | 3284 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,158 psi | 86% | 3360 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,200 psi | 83% | 3222 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,687 psi | 72% | 3120 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 48,182 psi | 76% | 3163 fps | 95.1% |
| Accurate 3100 | <<locked>> | 96% | 41,640 psi | 65% | 3097 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 43,236 psi | 68% | 3114 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 37,449 psi | 59% | 3035 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 49,545 psi | 78% | 3264 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 41,901 psi | 66% | 3077 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 98% | 52,214 psi | 82% | 3360 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,663 psi | 81% | 3271 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,866 psi | 83% | 3255 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,934 psi | 72% | 3304 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 52,141 psi | 82% | 3353 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,018 psi | 66% | 3107 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,049 psi | 71% | 3182 fps | 98.4% |
| Alliant Reloder-16 | 44 gr | 84% | 37,159 psi | 58% | 3058 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,651 psi | 57% | 3064 fps | 97.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,401 psi | 81% | 3340 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 32,430 psi | 51% | 2930 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 38,348 psi | 60% | 3153 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,487 psi | 78% | 3271 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 41,756 psi | 65% | 3107 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 48,414 psi | 76% | 3205 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,939 psi | 83% | 3255 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,329 psi | 80% | 3294 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,554 psi | 67% | 3110 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 46,064 psi | 72% | 3235 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 53,113 psi | 83% | 3340 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 80% | 50,053 psi | 78% | 3278 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 31,865 psi | 50% | 2861 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,528 psi | 73% | 3238 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 90% | 49,501 psi | 78% | 3333 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 42% | 1936 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,790 psi | 75% | 3215 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 50,038 psi | 78% | 3268 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,990 psi | 69% | 3123 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,572 psi | 73% | 3150 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 49,400 psi | 77% | 3241 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 47,282 psi | 74% | 3189 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 36,100 psi | 57% | 2979 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,209 psi | 72% | 3222 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 51,663 psi | 81% | 3271 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,298 psi | 77% | 3235 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,834 psi | 77% | 3186 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 44,034 psi | 69% | 3123 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 41,060 psi | 64% | 3048 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 44,846 psi | 70% | 3153 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 48,051 psi | 75% | 3199 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 48,907 psi | 77% | 3212 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,411 psi | 70% | 3169 fps | 98.7% |
| Norma 204 | <<locked>> | 94% | 53,084 psi | 83% | 3353 fps | 95.2% |
| Norma MRP | <<locked>> | 98% | 47,587 psi | 75% | 3340 fps | 95.8% |
| Norma URP | <<locked>> | 84% | 37,492 psi | 59% | 3035 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 44,599 psi | 70% | 3186 fps | 98.7% |
| Ramshot Hunter | 48.8 gr | 88% | 42,076 psi | 66% | 3150 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 51,706 psi | 81% | 3278 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,648 psi | 81% | 3301 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 42% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,888 psi | 67% | 3094 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,356 psi | 76% | 3314 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,073 psi | 61% | 3146 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 37,521 psi | 59% | 3051 fps | 95.3% |
| ReloadSwiss RS 70 | 49.2 gr | 86% | 39,697 psi | 62% | 3133 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 51,953 psi | 81% | 3251 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,701 psi | 72% | 3143 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 39,247 psi | 62% | 3041 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 98% | 50,270 psi | 79% | 3320 fps | 95% |
| Rottweil R 907 | <<locked>> | 88% | 48,414 psi | 76% | 3205 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 41,060 psi | 64% | 3048 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,298 psi | 77% | 3235 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,034 psi | 69% | 3123 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 44,846 psi | 70% | 3153 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,712 psi | 64% | 3100 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,285 psi | 79% | 3251 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,138 psi | 75% | 3222 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,182 psi | 77% | 3150 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,220 psi | 65% | 2982 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 46,528 psi | 73% | 3120 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,907 psi | 77% | 3143 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,314 psi | 79% | 3248 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 39,798 psi | 62% | 3045 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 29,138 psi | 46% | 2831 fps | 95.7% |
| Somchem S385 | <<locked>> | 96% | 47,398 psi | 74% | 3225 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 49,690 psi | 78% | 3136 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,585 psi | 71% | 3123 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,267 psi | 73% | 3133 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,072 psi | 60% | 2972 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 36,695 psi | 57% | 2979 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 51,764 psi | 81% | 3268 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,715 psi | 70% | 3114 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 38,653 psi | 61% | 3038 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 35,694 psi | 56% | 3022 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,924 psi | 53% | 2881 fps | 96.7% |
| Winchester 748 | <<locked>> | 80% | 52,431 psi | 82% | 3320 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 46,354 psi | 73% | 3241 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 30,748 psi | 48% | 2953 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,877 psi | 75% | 3225 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 97 powders for .240 Weath. Mag. loaded with the .243 | 79gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,527 fps; across all powders the maximum-charge window runs from 2,159 fps to 3,527 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 79.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Reloder-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for .240 Weath. Mag. with the .243 | 79gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.