Load Specifications
Load data in caliber .25 x 47 Lapua with .257 | 90gr | Reichenberg HDB Universal bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.
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: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 56,782 psi | 90% | 3245 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 53,534 psi | 85% | 3301 fps | 98.5% |
| Accurate 2230 | <<locked>> | 82% | 54,433 psi | 86% | 3307 fps | 98.9% |
| Accurate 2460 | <<locked>> | 88% | 55,376 psi | 88% | 3274 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,853 psi | 85% | 3261 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,316 psi | 85% | 3284 fps | 100% |
| Accurate 4064ᴾ | <<locked>> | 100% | 56,811 psi | 90% | 3350 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,148 psi | 67% | 3163 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 86% | 56,927 psi | 90% | 3189 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 53,969 psi | 86% | 3163 fps | 100% |
| ADI AR 2206H | <<locked>> | 94% | 55,825 psi | 88% | 3346 fps | 99.4% |
| ADI AR 2207 | <<locked>> | 82% | 55,172 psi | 87% | 3173 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 56,811 psi | 90% | 3333 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 84% | 53,998 psi | 86% | 3278 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 55,347 psi | 88% | 3297 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 92% | 54,331 psi | 86% | 3278 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 56,565 psi | 90% | 3422 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 55,680 psi | 88% | 3465 fps | 99% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 55,579 psi | 88% | 3353 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 88% | 56,594 psi | 90% | 3261 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 56,913 psi | 90% | 3383 fps | 99.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,975 psi | 68% | 3176 fps | 96.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,821 psi | 79% | 3356 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 82% | 56,144 psi | 89% | 3189 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 56,304 psi | 89% | 3182 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 55,753 psi | 88% | 3356 fps | 98.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 56,420 psi | 89% | 3376 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,360 psi | 86% | 3235 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 92% | 54,056 psi | 86% | 3330 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 90% | 55,564 psi | 88% | 3432 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 88% | 56,144 psi | 89% | 3310 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,534 psi | 85% | 3278 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 54,563 psi | 86% | 3323 fps | 98% |
| Hodgdon H4198 | <<locked>> | 82% | 55,492 psi | 88% | 3196 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 56,260 psi | 89% | 3360 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,059 psi | 62% | 3041 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 54,650 psi | 87% | 3383 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,200 psi | 54% | 2005 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 54,491 psi | 86% | 3307 fps | 99.5% |
| IMR 3031 | <<locked>> | 94% | 55,201 psi | 87% | 3346 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 56,318 psi | 89% | 3317 fps | 99.2% |
| IMR 4198 | <<locked>> | 88% | 57,014 psi | 90% | 3219 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,567 psi | 64% | 3100 fps | 95.8% |
| IMR 4895 | <<locked>> | 96% | 54,447 psi | 86% | 3360 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 92% | 55,347 psi | 88% | 3297 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 82% | 55,027 psi | 87% | 3284 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 55,622 psi | 88% | 3284 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 54,723 psi | 87% | 3317 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 56,159 psi | 89% | 3261 fps | 99.4% |
| Lovex S062 | <<locked>> | 98% | 55,593 psi | 88% | 3314 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,138 psi | 76% | 3173 fps | 95.9% |
| Norma 200 | <<locked>> | 84% | 56,797 psi | 90% | 3232 fps | 100% |
| Norma 201 | <<locked>> | 94% | 54,302 psi | 86% | 3281 fps | 99.8% |
| Norma 202 | <<locked>> | 94% | 54,955 psi | 87% | 3297 fps | 100% |
| Norma 203B | <<locked>> | 98% | 55,941 psi | 89% | 3369 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 42,960 psi | 68% | 3166 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 98% | 56,347 psi | 89% | 3389 fps | 99.4% |
| Ramshot TAC | <<locked>> | 92% | 56,260 psi | 89% | 3307 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 92% | 54,955 psi | 87% | 3333 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 90% | 57,072 psi | 90% | 3301 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,505 psi | 55% | 2054 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 55,013 psi | 87% | 3287 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 55,187 psi | 87% | 3294 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 56,347 psi | 89% | 3451 fps | 99.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 53,214 psi | 84% | 3435 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 55,288 psi | 88% | 3271 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 54,795 psi | 87% | 3278 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 52,344 psi | 83% | 3297 fps | 99.5% |
| Shooters World AR Plus | <<locked>> | 82% | 55,027 psi | 87% | 3284 fps | 100% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,138 psi | 76% | 3173 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 54,723 psi | 87% | 3317 fps | 100% |
| Shooters World Precision | <<locked>> | 98% | 55,593 psi | 88% | 3314 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 55,274 psi | 88% | 3251 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 57,087 psi | 90% | 2910 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 54,215 psi | 86% | 3284 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,447 psi | 86% | 3369 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,172 psi | 86% | 3232 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 54,056 psi | 86% | 3278 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 54,317 psi | 86% | 3310 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,635 psi | 85% | 3179 fps | 100% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 56,188 psi | 89% | 3212 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 56,811 psi | 90% | 3343 fps | 100% |
| Somchem S335 | <<locked>> | 94% | 55,579 psi | 88% | 3219 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,330 psi | 85% | 3271 fps | 99.1% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,982 psi | 84% | 3297 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,145 psi | 60% | 3104 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 82% | 55,056 psi | 87% | 3110 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 56,753 psi | 90% | 3199 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 56,782 psi | 90% | 3212 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 56,739 psi | 90% | 3291 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 55,288 psi | 88% | 3264 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,401 psi | 81% | 3228 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,179 psi | 72% | 3163 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 92% | 55,985 psi | 89% | 3301 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 96% | 53,563 psi | 85% | 3261 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,135 psi | 70% | 3169 fps | 96.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,905 psi | 74% | 3153 fps | 98.8% |
| Winchester 748 | <<locked>> | 92% | 54,955 psi | 87% | 3350 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 53,737 psi | 85% | 3314 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,943 psi | 62% | 2943 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,285 psi | 80% | 3241 fps | 98.1% |
| Accurate 2230 | <<locked>> | 80% | 50,647 psi | 80% | 3241 fps | 98.4% |
| Accurate 2460 | <<locked>> | 80% | 42,235 psi | 67% | 3045 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 31,386 psi | 50% | 2828 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 37,623 psi | 60% | 2986 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 29,675 psi | 47% | 2802 fps | 97.9% |
| Accurate 4350 | <<locked>> | 98% | 39,349 psi | 62% | 3100 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 47,413 psi | 75% | 3038 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,776 psi | 76% | 3058 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,926 psi | 57% | 2936 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 51,808 psi | 82% | 3123 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 39,189 psi | 62% | 2992 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 46,804 psi | 74% | 3159 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,913 psi | 60% | 2959 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 80% | 36,376 psi | 58% | 2972 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,497 psi | 69% | 3176 fps | 98.2% |
| Alliant Power Pro 2000-MR | 38.3 gr | 86% | 39,523 psi | 63% | 3120 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,504 psi | 53% | 2900 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,382 psi | 70% | 3064 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,187 psi | 57% | 2966 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,495 psi | 64% | 3114 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,636 psi | 56% | 3028 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 52,779 psi | 84% | 3140 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,412 psi | 74% | 3028 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,755 psi | 63% | 3041 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 32,677 psi | 52% | 2894 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,813 psi | 63% | 2953 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,563 psi | 56% | 2963 fps | 97.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,305 psi | 62% | 3104 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 42,873 psi | 68% | 3084 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,555 psi | 69% | 3100 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,495 psi | 66% | 3074 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 52,156 psi | 83% | 3143 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 36,129 psi | 57% | 2949 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,534 psi | 55% | 2927 fps | 95.3% |
| Hodgdon LEVERevolution | 34.9 gr | 80% | 32,053 psi | 51% | 2890 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,396 psi | 40% | 1798 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,635 psi | 55% | 2890 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 34,534 psi | 55% | 2959 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 36,289 psi | 58% | 2917 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 45,005 psi | 71% | 3028 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 38,087 psi | 60% | 3045 fps | 95% |
| IMR 4895 | <<locked>> | 82% | 34,737 psi | 55% | 2943 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 37,913 psi | 60% | 2959 fps | 97.4% |
| Lovex D073.4 | <<locked>> | 80% | 51,677 psi | 82% | 3232 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 42,119 psi | 67% | 3048 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 33,939 psi | 54% | 2910 fps | 98.1% |
| Lovex S060 | <<locked>> | 80% | 36,680 psi | 58% | 2874 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 31,459 psi | 50% | 2805 fps | 95.5% |
| Lovex S065 | <<locked>> | 98% | 45,324 psi | 72% | 3117 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 49,893 psi | 79% | 3130 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,041 psi | 56% | 2887 fps | 96.7% |
| Norma 202 | <<locked>> | 80% | 34,998 psi | 55% | 2910 fps | 98.8% |
| Norma 203B | <<locked>> | 84% | 35,520 psi | 56% | 2953 fps | 95.5% |
| Norma URP | <<locked>> | 98% | 40,089 psi | 64% | 3100 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 86% | 37,710 psi | 60% | 3022 fps | 95.9% |
| Ramshot TAC | <<locked>> | 86% | 46,180 psi | 73% | 3127 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,535 psi | 58% | 2959 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,060 psi | 65% | 3002 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,483 psi | 40% | 1841 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,395 psi | 67% | 3058 fps | 99.3% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,559 psi | 77% | 3176 fps | 95.1% |
| ReloadSwiss RS 52 | 36.3 gr | 84% | 37,492 psi | 59% | 3071 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 29,283 psi | 46% | 2841 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 38,769 psi | 61% | 2959 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 33,518 psi | 53% | 2838 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 32,837 psi | 52% | 2887 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 51,677 psi | 82% | 3232 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 98% | 45,324 psi | 72% | 3117 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,939 psi | 54% | 2910 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 31,459 psi | 50% | 2805 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,817 psi | 71% | 3064 fps | 98.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 51,706 psi | 82% | 2838 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,326 psi | 75% | 3166 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,738 psi | 58% | 3005 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,715 psi | 71% | 3074 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 43,874 psi | 70% | 3087 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,738 psi | 58% | 2953 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,767 psi | 58% | 2861 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,965 psi | 47% | 2703 fps | 98.4% |
| Somchem S321 | <<locked>> | 80% | 40,408 psi | 64% | 3038 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 36,245 psi | 57% | 2864 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 35,259 psi | 56% | 2904 fps | 95.1% |
| Somchem S355 | <<locked>> | 86% | 34,040 psi | 54% | 2900 fps | 95.5% |
| Somchem S365 | <<locked>> | 94% | 31,517 psi | 50% | 2917 fps | 95.8% |
| Vihtavuori N120 | <<locked>> | 80% | 51,721 psi | 82% | 3061 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 41,727 psi | 66% | 2953 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,709 psi | 58% | 2864 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,879 psi | 51% | 2831 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 33,098 psi | 52% | 2835 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 30,197 psi | 48% | 2769 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 98% | 42,482 psi | 67% | 3107 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 37,536 psi | 59% | 2946 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 80% | 31,879 psi | 51% | 2818 fps | 98% |
| Vihtavuori N550 | <<locked>> | 98% | 41,495 psi | 66% | 3110 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,692 psi | 53% | 2851 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 36,318 psi | 58% | 2986 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,547 psi | 53% | 2894 fps | 95.4% |
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 117 powders for .25 x 47 Lapua loaded with the .257 | 90gr | Reichenberg HDB Universal. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,465 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,465 fps. Accurate 4064 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.257" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, ADI AR 2208 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 Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .25 x 47 Lapua with the .257 | 90gr | Reichenberg HDB Universal they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.