Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 110gr | Barnes TTSX FB bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2495 | <<locked>> | 84% | 54,201 psi | 85% | 3235 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,782 psi | 89% | 3304 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,009 psi | 78% | 3248 fps | 97.8% |
| Accurate 4064 | <<locked>> | 86% | 54,723 psi | 86% | 3294 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,796 psi | 87% | 3392 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 54,360 psi | 85% | 3327 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 88% | 55,608 psi | 87% | 3330 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,624 psi | 90% | 3435 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,623 psi | 89% | 3333 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,013 psi | 86% | 3461 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,100 psi | 86% | 3340 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,246 psi | 88% | 3356 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,594 psi | 89% | 3383 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,927 psi | 89% | 3468 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,433 psi | 85% | 3428 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,637 psi | 89% | 3419 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,094 psi | 74% | 3278 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,505 psi | 85% | 3491 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,375 psi | 85% | 3333 fps | 99.6% |
| Bofors RP3 | <<locked>> | 88% | 57,159 psi | 90% | 3373 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 56,753 psi | 89% | 3343 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,768 psi | 89% | 3360 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,085 psi | 85% | 3323 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 92% | 54,723 psi | 86% | 3386 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 90% | 54,752 psi | 86% | 3346 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 82% | 54,940 psi | 86% | 3340 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,043 psi | 89% | 3376 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,317 psi | 87% | 3376 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,376 psi | 87% | 3422 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 56% | 2146 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,246 psi | 88% | 3346 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,274 psi | 87% | 3323 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,056 psi | 86% | 3314 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,476 psi | 85% | 3287 fps | 97.7% |
| IMR 4350 | <<locked>> | 94% | 54,302 psi | 85% | 3317 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,143 psi | 86% | 3320 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 56,550 psi | 89% | 3386 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 54,404 psi | 85% | 3356 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 56,623 psi | 89% | 3333 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,621 psi | 86% | 3301 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,840 psi | 89% | 3307 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,955 psi | 86% | 3307 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,897 psi | 86% | 3314 fps | 98.8% |
| Lovex S070 | <<locked>> | 94% | 56,159 psi | 88% | 3353 fps | 98.2% |
| Norma 201 | <<locked>> | 84% | 56,333 psi | 88% | 3323 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,334 psi | 90% | 3327 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,854 psi | 88% | 3363 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,998 psi | 86% | 3366 fps | 96% |
| Norma MRPᴾ | <<locked>> | 100% | 53,505 psi | 84% | 3438 fps | 97.6% |
| Norma URP | <<locked>> | 94% | 54,839 psi | 86% | 3379 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 86% | 57,043 psi | 89% | 3396 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 57,653 psi | 90% | 3438 fps | 98.9% |
| Ramshot TAC | <<locked>> | 82% | 57,029 psi | 89% | 3350 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,058 psi | 89% | 3369 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,318 psi | 57% | 2195 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,273 psi | 85% | 3304 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,580 psi | 90% | 3458 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,085 psi | 85% | 3432 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,086 psi | 88% | 3419 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,911 psi | 86% | 3445 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 56,797 psi | 89% | 3304 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,101 psi | 89% | 3327 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 57,014 psi | 89% | 3366 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 3402 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 92% | 56,753 psi | 89% | 3343 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,897 psi | 86% | 3314 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,621 psi | 86% | 3301 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,955 psi | 86% | 3307 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,159 psi | 88% | 3353 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,361 psi | 87% | 3369 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,521 psi | 87% | 3323 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,478 psi | 89% | 3350 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,522 psi | 90% | 3261 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,940 psi | 86% | 3202 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,795 psi | 86% | 3255 fps | 97.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,390 psi | 87% | 3396 fps | 96.5% |
| Somchem S335 | <<locked>> | 84% | 57,000 psi | 89% | 3251 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,332 psi | 87% | 3310 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 57,087 psi | 89% | 3363 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 57,653 psi | 90% | 3445 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,405 psi | 88% | 3373 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 82% | 54,534 psi | 85% | 3189 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,305 psi | 90% | 3287 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,331 psi | 85% | 3245 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,984 psi | 86% | 3278 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,014 psi | 89% | 3376 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 57,232 psi | 90% | 3333 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,304 psi | 88% | 3294 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,318 psi | 88% | 3379 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 3369 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 57,450 psi | 90% | 3343 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,955 psi | 86% | 3389 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,569 psi | 67% | 3310 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,797 psi | 89% | 3363 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 2495 | <<locked>> | 80% | 47,369 psi | 74% | 3123 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 49,588 psi | 78% | 3169 fps | 95.8% |
| Accurate 3100 | <<locked>> | 94% | 40,248 psi | 63% | 3038 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,831 psi | 70% | 3117 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 36,260 psi | 57% | 2972 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 50,879 psi | 80% | 3261 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 43,047 psi | 67% | 3081 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 96% | 50,430 psi | 79% | 3301 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,055 psi | 83% | 3271 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,456 psi | 74% | 3314 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,576 psi | 81% | 3278 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,236 psi | 68% | 3107 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,398 psi | 73% | 3189 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 35,795 psi | 56% | 2992 fps | 95.5% |
| Alliant Reloder-17 | 62.6 gr | 80% | 37,898 psi | 59% | 3074 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 52,968 psi | 83% | 3350 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 31,430 psi | 49% | 2874 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 37,159 psi | 58% | 3097 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,749 psi | 80% | 3268 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 43,192 psi | 68% | 3114 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 46,717 psi | 73% | 3150 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,910 psi | 83% | 3294 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,932 psi | 69% | 3120 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 44,643 psi | 70% | 3179 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 88% | 51,256 psi | 80% | 3278 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 51,445 psi | 81% | 3274 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,922 psi | 48% | 2808 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,167 psi | 75% | 3245 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 47,601 psi | 75% | 3271 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 42% | 1923 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,255 psi | 77% | 3215 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 51,793 psi | 81% | 3268 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,252 psi | 71% | 3123 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,863 psi | 75% | 3156 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 47,616 psi | 75% | 3182 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,397 psi | 71% | 3123 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 35,012 psi | 55% | 2927 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 47,587 psi | 75% | 3222 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 53,055 psi | 83% | 3271 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,792 psi | 80% | 3235 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,169 psi | 79% | 3189 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 45,411 psi | 71% | 3127 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 39,827 psi | 62% | 2999 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 43,323 psi | 68% | 3094 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 49,545 psi | 78% | 3205 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,198 psi | 79% | 3209 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,745 psi | 72% | 3173 fps | 99.1% |
| Norma 204 | <<locked>> | 92% | 51,314 psi | 80% | 3294 fps | 95.1% |
| Norma MRP | <<locked>> | 96% | 46,267 psi | 73% | 3284 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 36,332 psi | 57% | 2976 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 46,108 psi | 72% | 3192 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 40,785 psi | 64% | 3094 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 53,330 psi | 84% | 3284 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,272 psi | 83% | 3304 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,021 psi | 42% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,193 psi | 69% | 3100 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,879 psi | 78% | 3317 fps | 99.3% |
| ReloadSwiss RS 60 | 62.6 gr | 80% | 40,364 psi | 63% | 3153 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,201 psi | 57% | 2992 fps | 95% |
| ReloadSwiss RS 70 | 66.8 gr | 84% | 38,334 psi | 60% | 3071 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 53,417 psi | 84% | 3248 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,210 psi | 74% | 3150 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 40,727 psi | 64% | 3048 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 98% | 52,069 psi | 82% | 3333 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 86% | 46,717 psi | 73% | 3150 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,827 psi | 62% | 2999 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,792 psi | 80% | 3235 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,411 psi | 71% | 3127 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 43,323 psi | 68% | 3094 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,930 psi | 66% | 3107 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,721 psi | 81% | 3251 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,371 psi | 77% | 3222 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,720 psi | 79% | 3150 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,612 psi | 67% | 2986 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,701 psi | 70% | 3061 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 51,605 psi | 81% | 3323 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 50,328 psi | 79% | 3140 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,590 psi | 81% | 3245 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 41,205 psi | 65% | 3051 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 30,400 psi | 48% | 2848 fps | 96.6% |
| Somchem S385 | <<locked>> | 94% | 45,977 psi | 72% | 3173 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 51,256 psi | 80% | 3136 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,268 psi | 74% | 3123 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,776 psi | 75% | 3133 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,436 psi | 62% | 2979 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 82% | 37,884 psi | 59% | 2986 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 53,287 psi | 84% | 3268 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,122 psi | 72% | 3114 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 37,333 psi | 59% | 2979 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 34,751 psi | 54% | 2969 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,882 psi | 55% | 2887 fps | 97.4% |
| Winchester 760 | <<locked>> | 86% | 44,643 psi | 70% | 3179 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,936 psi | 47% | 2900 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,313 psi | 77% | 3232 fps | 99.8% |
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 94 powders for 7 mm Weath. Mag. loaded with the .284 | 110gr | Barnes TTSX FB. Alliant Reloder-26 delivers the highest muzzle velocity at 3,491 fps; across all powders the maximum-charge window runs from 2,146 fps to 3,491 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 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 110.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 mm Weath. Mag. with the .284 | 110gr | Barnes TTSX FB 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.