Load Specifications
Load data in caliber 8 x 60 S with .323 | 220gr | Peregrine VRG-2 Discontinued%29 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 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.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 52,373 psi | 89% | 2352 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,444 psi | 86% | 2372 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 52,750 psi | 90% | 2405 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 52,141 psi | 89% | 2428 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 50,357 psi | 86% | 2362 fps | 95.8% |
| Accurate 4064 | <<locked>> | 94% | 52,533 psi | 89% | 2444 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,646 psi | 83% | 2467 fps | 99% |
| ADI AR 2206H | <<locked>> | 88% | 51,445 psi | 88% | 2438 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 52,460 psi | 89% | 2434 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,647 psi | 86% | 2395 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 50,807 psi | 86% | 2379 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 52,069 psi | 89% | 2480 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,546 psi | 86% | 2533 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 51,619 psi | 88% | 2451 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 52,214 psi | 89% | 2352 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,547 psi | 89% | 2474 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,993 psi | 82% | 2470 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 51,924 psi | 88% | 2556 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,562 psi | 57% | 2231 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,952 psi | 87% | 2448 fps | 99.3% |
| Bofors RP3 | <<locked>> | 94% | 51,619 psi | 88% | 2461 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 52,794 psi | 90% | 2434 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 52,649 psi | 90% | 2382 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,765 psi | 90% | 2467 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,850 psi | 87% | 2500 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 51,358 psi | 87% | 2392 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,214 psi | 89% | 2415 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,806 psi | 85% | 2428 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 52,069 psi | 89% | 2513 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 88% | 51,924 psi | 88% | 2444 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,859 psi | 75% | 2365 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 50,488 psi | 86% | 2470 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 49,661 psi | 85% | 2493 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,737 psi | 59% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,908 psi | 85% | 2402 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 51,256 psi | 87% | 2431 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 52,011 psi | 89% | 2421 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,446 psi | 89% | 2402 fps | 97.1% |
| IMR 4198 | <<locked>> | 82% | 52,866 psi | 90% | 2320 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 49,385 psi | 84% | 2411 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,735 psi | 88% | 2421 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,224 psi | 79% | 2415 fps | 98.6% |
| IMR 4895 | <<locked>> | 90% | 50,357 psi | 86% | 2451 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 50,647 psi | 86% | 2395 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 50,357 psi | 86% | 2382 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 50,343 psi | 86% | 2415 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 51,561 psi | 88% | 2375 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 51,387 psi | 87% | 2418 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 50,328 psi | 86% | 2411 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,821 psi | 87% | 2438 fps | 97.2% |
| Norma 201 | <<locked>> | 88% | 50,125 psi | 85% | 2388 fps | 100% |
| Norma 202 | <<locked>> | 88% | 50,473 psi | 86% | 2392 fps | 100% |
| Norma 203B | <<locked>> | 92% | 51,706 psi | 88% | 2461 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 48,385 psi | 82% | 2461 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 92% | 51,851 psi | 88% | 2484 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,601 psi | 81% | 2454 fps | 97.2% |
| Ramshot TAC | <<locked>> | 86% | 50,749 psi | 86% | 2408 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,140 psi | 85% | 2425 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,561 psi | 88% | 2395 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,230 psi | 60% | 1496 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,343 psi | 86% | 2382 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,502 psi | 86% | 2415 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,605 psi | 90% | 2530 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 51,837 psi | 88% | 2556 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,312 psi | 82% | 2487 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,168 psi | 84% | 2510 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 86% | 51,155 psi | 87% | 2372 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 50,386 psi | 86% | 2385 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 51,488 psi | 88% | 2454 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 52,794 psi | 90% | 2434 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 50,328 psi | 86% | 2411 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,343 psi | 86% | 2415 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 51,387 psi | 87% | 2418 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,821 psi | 87% | 2438 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,096 psi | 85% | 2464 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,243 psi | 89% | 2431 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,864 psi | 85% | 2411 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,272 psi | 89% | 2343 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,793 psi | 88% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,546 psi | 86% | 2369 fps | 96.7% |
| Somchem S321 | <<locked>> | 84% | 51,445 psi | 88% | 2425 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 51,329 psi | 87% | 2343 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,025 psi | 89% | 2431 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 52,373 psi | 89% | 2457 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,047 psi | 73% | 2415 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 52,156 psi | 89% | 2310 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,431 psi | 89% | 2329 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 52,910 psi | 90% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,981 psi | 87% | 2375 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 50,328 psi | 86% | 2395 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,140 psi | 87% | 2461 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 51,010 psi | 87% | 2395 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 52,344 psi | 89% | 2415 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,908 psi | 85% | 2461 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,694 psi | 61% | 2297 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,750 psi | 88% | 2444 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 50,285 psi | 86% | 2434 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 52,344 psi | 89% | 2516 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,750 psi | 90% | 2464 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 43,424 psi | 74% | 2231 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,181 psi | 80% | 2329 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,447 psi | 60% | 2159 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,395 psi | 72% | 2290 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 47,094 psi | 80% | 2313 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 33,591 psi | 57% | 2149 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 33,982 psi | 58% | 2218 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 39,885 psi | 68% | 2251 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 34,040 psi | 58% | 2123 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,959 psi | 71% | 2264 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 41,365 psi | 70% | 2254 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,863 psi | 83% | 2434 fps | 99.8% |
| Alliant Power Pro 2000-MR | 44.6 gr | 80% | 35,868 psi | 61% | 2264 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,040 psi | 56% | 2139 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 49,052 psi | 84% | 2313 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,679 psi | 61% | 2192 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 33,228 psi | 57% | 2188 fps | 95% |
| Alliant Reloder-17 | 45 gr | 82% | 30,342 psi | 52% | 2149 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 29,820 psi | 51% | 2139 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,856 psi | 66% | 2254 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 32,155 psi | 55% | 2136 fps | 97.4% |
| Bofors RP7 | <<locked>> | 94% | 46,427 psi | 79% | 2339 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,816 psi | 75% | 2254 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,030 psi | 68% | 2277 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,353 psi | 76% | 2402 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 47,906 psi | 82% | 2346 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,820 psi | 83% | 2372 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 35,795 psi | 61% | 2188 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 94% | 42,728 psi | 73% | 2365 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 40,190 psi | 68% | 2264 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,153 psi | 51% | 2096 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,114 psi | 61% | 2234 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 96% | 46,151 psi | 79% | 2434 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,817 psi | 44% | 1299 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,595 psi | 66% | 2221 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 39,450 psi | 67% | 2260 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,650 psi | 61% | 2152 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 43,308 psi | 74% | 2260 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 49,937 psi | 85% | 2283 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 46,238 psi | 79% | 2362 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 45,672 psi | 78% | 2329 fps | 95.6% |
| IMR 4831 | <<locked>> | 90% | 33,185 psi | 56% | 2182 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 36,521 psi | 62% | 2218 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 41,959 psi | 71% | 2264 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 46,775 psi | 80% | 2333 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,334 psi | 65% | 2234 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 40,350 psi | 69% | 2201 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 35,085 psi | 60% | 2152 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 39,291 psi | 67% | 2234 fps | 95.5% |
| Lovex S070 | <<locked>> | 94% | 42,119 psi | 72% | 2300 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 38,957 psi | 66% | 2211 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 39,160 psi | 67% | 2221 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,085 psi | 60% | 2182 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 34,940 psi | 59% | 2224 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 34,418 psi | 59% | 2192 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 96% | 41,727 psi | 71% | 2356 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 41,829 psi | 71% | 2264 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,104 psi | 70% | 2283 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,324 psi | 77% | 2303 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 44% | 1332 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,094 psi | 80% | 2336 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 41,423 psi | 71% | 2267 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,796 psi | 63% | 2274 fps | 97.2% |
| ReloadSwiss RS 60 | 43.9 gr | 80% | 30,255 psi | 52% | 2156 fps | 98.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 34,243 psi | 58% | 2234 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 37,405 psi | 64% | 2293 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 42,627 psi | 73% | 2251 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,014 psi | 63% | 2169 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 30,255 psi | 52% | 2087 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 46,427 psi | 79% | 2339 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,291 psi | 67% | 2234 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,334 psi | 65% | 2234 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 35,085 psi | 60% | 2152 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 42,119 psi | 72% | 2300 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,473 psi | 54% | 2129 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,566 psi | 67% | 2234 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,276 psi | 65% | 2224 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,640 psi | 69% | 2178 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,446 psi | 57% | 2064 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 44,164 psi | 75% | 2277 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 45,063 psi | 77% | 2333 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 40,147 psi | 68% | 2182 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,566 psi | 67% | 2241 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 31,459 psi | 54% | 2096 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 25,527 psi | 43% | 2031 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 46,137 psi | 79% | 2234 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,901 psi | 70% | 2175 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,158 psi | 62% | 2159 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,956 psi | 63% | 2165 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 29,747 psi | 51% | 2044 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 88% | 34,461 psi | 59% | 2182 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 41,742 psi | 71% | 2257 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,549 psi | 61% | 2159 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 35,737 psi | 61% | 2224 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 31,444 psi | 54% | 2201 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,385 psi | 52% | 2070 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 40,915 psi | 70% | 2293 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 42,989 psi | 73% | 2369 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,666 psi | 64% | 2228 fps | 98.4% |
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 99 powders for 8 x 60 S loaded with the .323 | 220gr | Peregrine VRG-2 Discontinued%29. Alliant Reloder-17 delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,457 fps to 2,556 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Reloder-17 rank at the top here: for 8 x 60 S with the .323 | 220gr | Peregrine VRG-2 Discontinued%29 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.