Load Specifications
Load data in caliber .25-06 Rem. with .257 | 86gr | Winchester SPRN bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
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>> | 84% | 58,871 psi | 90% | 3274 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 58,682 psi | 90% | 3297 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,333 psi | 86% | 3310 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,363 psi | 88% | 3287 fps | 96.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,499 psi | 71% | 3163 fps | 96.2% |
| Accurate 4064 | <<locked>> | 90% | 58,726 psi | 90% | 3346 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,869 psi | 86% | 3379 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 58,537 psi | 90% | 3386 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 56,217 psi | 86% | 3327 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,072 psi | 87% | 3327 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 58,610 psi | 90% | 3310 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,085 psi | 84% | 3451 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,391 psi | 86% | 3350 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,811 psi | 87% | 3373 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,652 psi | 87% | 3445 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 58,465 psi | 90% | 3484 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,627 psi | 67% | 3189 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,140 psi | 77% | 3389 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 58,813 psi | 90% | 3399 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 57,406 psi | 88% | 3366 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,319 psi | 88% | 3330 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 58,581 psi | 90% | 3314 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,377 psi | 88% | 3363 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 58,291 psi | 89% | 3383 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 58,508 psi | 90% | 3432 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 94% | 58,465 psi | 90% | 3389 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 84% | 55,347 psi | 85% | 3337 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,695 psi | 87% | 3360 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,550 psi | 85% | 3373 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,535 psi | 85% | 3402 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 55% | 2142 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,637 psi | 87% | 3340 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 55,535 psi | 85% | 3327 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,332 psi | 85% | 3307 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 58,769 psi | 90% | 3340 fps | 97.7% |
| IMR 4350 | <<locked>> | 98% | 57,769 psi | 89% | 3353 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 58,943 psi | 90% | 3363 fps | 97.7% |
| IMR 4831 | <<locked>> | 98% | 56,405 psi | 86% | 3369 fps | 99.4% |
| IMR 4895 | <<locked>> | 88% | 58,305 psi | 89% | 3409 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 57,072 psi | 87% | 3327 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 58,987 psi | 90% | 3360 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,319 psi | 88% | 3304 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 55,608 psi | 85% | 3307 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 58,697 psi | 90% | 3356 fps | 98.8% |
| Lovex S070 | <<locked>> | 96% | 56,333 psi | 86% | 3337 fps | 97.6% |
| Norma 201 | <<locked>> | 86% | 57,072 psi | 87% | 3323 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,856 psi | 89% | 3330 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,057 psi | 86% | 3356 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 58,291 psi | 89% | 3425 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 88% | 57,188 psi | 88% | 3383 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 57,493 psi | 88% | 3419 fps | 98.4% |
| Ramshot TAC | <<locked>> | 84% | 57,769 psi | 89% | 3343 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,537 psi | 88% | 3366 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 58,247 psi | 89% | 3330 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,042 psi | 55% | 2185 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 58,291 psi | 89% | 3353 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,827 psi | 89% | 3455 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,972 psi | 89% | 3488 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,796 psi | 85% | 3396 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 59,059 psi | 90% | 3497 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 57,624 psi | 88% | 3307 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,595 psi | 88% | 3323 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,246 psi | 88% | 3356 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 57,319 psi | 88% | 3330 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 58,697 psi | 90% | 3356 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 58,987 psi | 90% | 3360 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,608 psi | 85% | 3307 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,333 psi | 86% | 3337 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,361 psi | 85% | 3360 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,304 psi | 86% | 3317 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,087 psi | 87% | 3350 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 58,233 psi | 89% | 3261 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,492 psi | 85% | 3202 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 59,059 psi | 90% | 3304 fps | 97.8% |
| Somchem S321 | <<locked>> | 82% | 58,987 psi | 90% | 3363 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 57,725 psi | 88% | 3251 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,043 psi | 86% | 3307 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 57,508 psi | 88% | 3356 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,116 psi | 88% | 3428 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,663 psi | 81% | 3284 fps | 96% |
| Vihtavuori N130 | <<locked>> | 82% | 57,464 psi | 88% | 3215 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 58,523 psi | 90% | 3241 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,653 psi | 88% | 3287 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 58,552 psi | 90% | 3301 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,245 psi | 85% | 3271 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,101 psi | 87% | 3360 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 57,943 psi | 89% | 3333 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,710 psi | 87% | 3291 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,318 psi | 86% | 3363 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,762 psi | 75% | 3284 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,653 psi | 88% | 3333 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 58,392 psi | 89% | 3386 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 58,871 psi | 90% | 3438 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,610 psi | 61% | 3205 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,363 psi | 88% | 3356 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% | 52,170 psi | 80% | 3173 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,179 psi | 69% | 3084 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,562 psi | 81% | 3251 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,111 psi | 77% | 3156 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 43,149 psi | 66% | 3094 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,699 psi | 65% | 3071 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 39,218 psi | 60% | 3045 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 48,095 psi | 74% | 3199 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 40,901 psi | 63% | 3022 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,140 psi | 77% | 3209 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 51,314 psi | 79% | 3202 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,338 psi | 68% | 3232 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,843 psi | 63% | 3048 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,729 psi | 67% | 3117 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 38,450 psi | 59% | 3054 fps | 95.7% |
| Alliant Reloder-17 | 48 gr | 80% | 35,636 psi | 55% | 3002 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 33,808 psi | 52% | 2936 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 40,045 psi | 61% | 3156 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,805 psi | 73% | 3199 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 40,756 psi | 62% | 3048 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 50,270 psi | 77% | 3202 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,880 psi | 79% | 3202 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,777 psi | 76% | 3232 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 41,423 psi | 63% | 3051 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 90% | 47,747 psi | 73% | 3232 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 92% | 54,940 psi | 84% | 3327 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 48,559 psi | 74% | 3212 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 33,315 psi | 51% | 2871 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,092 psi | 69% | 3179 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 90% | 47,993 psi | 74% | 3255 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 41% | 1919 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,630 psi | 71% | 3156 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 48,617 psi | 74% | 3212 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,960 psi | 66% | 3064 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,646 psi | 75% | 3153 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 51,068 psi | 78% | 3232 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,820 psi | 75% | 3179 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 37,753 psi | 58% | 2989 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 44,831 psi | 69% | 3156 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,140 psi | 77% | 3209 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 47,819 psi | 73% | 3176 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,718 psi | 73% | 3127 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 43,033 psi | 66% | 3071 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 42,888 psi | 66% | 3054 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 46,514 psi | 71% | 3150 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 47,311 psi | 72% | 3153 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 47,616 psi | 73% | 3156 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,091 psi | 66% | 3107 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 38,986 psi | 60% | 3038 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 43,091 psi | 66% | 3117 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 43,598 psi | 67% | 3146 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 50,415 psi | 77% | 3212 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,314 psi | 77% | 3238 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 54,288 psi | 83% | 3261 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 41% | 1965 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 44,817 psi | 69% | 3100 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,644 psi | 71% | 3241 fps | 98.3% |
| ReloadSwiss RS 60 | 48 gr | 80% | 37,913 psi | 58% | 3084 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 38,943 psi | 60% | 3054 fps | 95.3% |
| ReloadSwiss RS 70 | 53.6 gr | 88% | 41,408 psi | 63% | 3133 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 51,227 psi | 78% | 3202 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,860 psi | 69% | 3091 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 38,493 psi | 59% | 2989 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 50,270 psi | 77% | 3202 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 42,888 psi | 66% | 3054 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,819 psi | 73% | 3176 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,033 psi | 66% | 3071 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 90% | 46,514 psi | 71% | 3150 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,363 psi | 60% | 3038 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,081 psi | 75% | 3186 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,688 psi | 72% | 3156 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,312 psi | 74% | 3100 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,466 psi | 62% | 2936 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,515 psi | 74% | 3117 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 54,882 psi | 84% | 3301 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 48,095 psi | 74% | 3097 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,631 psi | 75% | 3179 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 39,102 psi | 60% | 2995 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 30,501 psi | 47% | 2844 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 49,313 psi | 76% | 3222 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 54,302 psi | 83% | 3169 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,704 psi | 75% | 3091 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,628 psi | 68% | 3077 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,237 psi | 69% | 3081 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,318 psi | 57% | 2920 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 37,985 psi | 58% | 2979 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,430 psi | 77% | 3205 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 43,540 psi | 67% | 3061 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 40,176 psi | 62% | 3038 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 37,028 psi | 57% | 3028 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,025 psi | 51% | 2818 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 50,836 psi | 78% | 3261 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 47,993 psi | 74% | 3238 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 32,155 psi | 49% | 2959 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,470 psi | 71% | 3163 fps | 99.2% |
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 114 powders for .25-06 Rem. loaded with the .257 | 86gr | Winchester SPRN. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,497 fps; across all powders the maximum-charge window runs from 2,142 fps to 3,497 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (450 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 86.0 gr projectile in 0.257" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .25-06 Rem. with the .257 | 86gr | Winchester SPRN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.