Load Specifications
Bullet:.308 | 200gr | Swift A-Frame
Bullet Manufacturer:Swift
Bullet Weight:200 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.014"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:59 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:13.0
Load data in caliber .308 Win. Ackley Improved with .308 | 200gr | Swift A-Frame bullet and 101 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 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.
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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>> | 88% | 52,852 psi | 88% | 2343 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 50,763 psi | 84% | 2362 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 52,910 psi | 88% | 2395 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,272 psi | 87% | 2415 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 53,882 psi | 90% | 2385 fps | 95.8% |
| Accurate 4064 | <<locked>> | 96% | 52,692 psi | 88% | 2431 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,628 psi | 74% | 2392 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 82% | 52,547 psi | 87% | 2290 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,953 psi | 88% | 2310 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 51,416 psi | 85% | 2421 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 96% | 52,547 psi | 87% | 2418 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 82% | 52,982 psi | 88% | 2398 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,041 psi | 90% | 2425 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 53,722 psi | 89% | 2402 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,431 psi | 87% | 2470 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,244 psi | 90% | 2566 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 51,401 psi | 85% | 2434 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 52,866 psi | 88% | 2349 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,286 psi | 87% | 2451 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 44,875 psi | 75% | 2398 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 51,793 psi | 86% | 2536 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 51,648 psi | 86% | 2297 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,215 psi | 90% | 2477 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 51,692 psi | 86% | 2448 fps | 99.9% |
| Bofors RP7ᴾ | <<locked>> | 100% | 52,852 psi | 88% | 2415 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,374 psi | 89% | 2372 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,939 psi | 88% | 2454 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 50,865 psi | 85% | 2487 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 51,459 psi | 85% | 2379 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,330 psi | 87% | 2405 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,084 psi | 88% | 2454 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 48,573 psi | 81% | 2441 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 90% | 51,822 psi | 86% | 2428 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,973 psi | 68% | 2297 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 53,708 psi | 89% | 2503 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,708 psi | 58% | 1437 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,345 psi | 89% | 2434 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 51,126 psi | 85% | 2418 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 51,996 psi | 86% | 2402 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 92% | 52,663 psi | 87% | 2382 fps | 96.5% |
| IMR 4198 | <<locked>> | 84% | 53,171 psi | 88% | 2310 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 51,721 psi | 86% | 2398 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,772 psi | 71% | 2346 fps | 97.5% |
| IMR 4895 | <<locked>> | 94% | 53,534 psi | 89% | 2480 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 90% | 54,041 psi | 90% | 2425 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 50,763 psi | 84% | 2372 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 53,853 psi | 89% | 2448 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 52,170 psi | 87% | 2362 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 51,401 psi | 85% | 2402 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,183 psi | 83% | 2388 fps | 97.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 47,543 psi | 79% | 2369 fps | 95.8% |
| Norma 201 | <<locked>> | 92% | 53,432 psi | 89% | 2415 fps | 100% |
| Norma 202 | <<locked>> | 92% | 54,012 psi | 90% | 2425 fps | 100% |
| Norma 203B | <<locked>> | 94% | 51,430 psi | 85% | 2441 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 44,875 psi | 75% | 2388 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 94% | 51,764 psi | 86% | 2467 fps | 99.5% |
| Ramshot TAC | <<locked>> | 88% | 51,227 psi | 85% | 2395 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,780 psi | 89% | 2457 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,011 psi | 86% | 2385 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,056 psi | 58% | 1473 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 53,983 psi | 90% | 2411 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 53,838 psi | 89% | 2438 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 52,069 psi | 87% | 2510 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 51,547 psi | 86% | 2536 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,411 psi | 74% | 2411 fps | 97.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 45,890 psi | 76% | 2428 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 88% | 51,692 psi | 86% | 2365 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 53,853 psi | 89% | 2411 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 51,184 psi | 85% | 2434 fps | 99.8% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 52,852 psi | 88% | 2415 fps | 95.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,183 psi | 83% | 2388 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,853 psi | 89% | 2448 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 51,401 psi | 85% | 2402 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 47,543 psi | 79% | 2369 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 53,853 psi | 89% | 2385 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,272 psi | 89% | 2408 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,040 psi | 88% | 2490 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,432 psi | 89% | 2359 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,779 psi | 88% | 2421 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,243 psi | 88% | 2441 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 52,765 psi | 88% | 2329 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 52,011 psi | 86% | 2326 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 50,546 psi | 84% | 2349 fps | 96.1% |
| Somchem S321 | <<locked>> | 86% | 51,938 psi | 86% | 2415 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 51,721 psi | 86% | 2333 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 52,098 psi | 87% | 2415 fps | 99.5% |
| Somchem S355 | <<locked>> | 98% | 52,257 psi | 87% | 2438 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,074 psi | 67% | 2349 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 86% | 52,678 psi | 88% | 2303 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 52,678 psi | 88% | 2320 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,127 psi | 88% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,433 psi | 90% | 2405 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,534 psi | 89% | 2421 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,413 psi | 79% | 2388 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 88% | 51,430 psi | 85% | 2385 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 52,344 psi | 87% | 2402 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,398 psi | 77% | 2398 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,602 psi | 81% | 2382 fps | 99.6% |
| Winchester 748 | <<locked>> | 90% | 53,737 psi | 89% | 2467 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 48,573 psi | 81% | 2441 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 52,852 psi | 88% | 2451 fps | 99.9% |
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% | 41,104 psi | 68% | 2185 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,715 psi | 74% | 2277 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,620 psi | 56% | 2116 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,740 psi | 66% | 2238 fps | 99.8% |
| Accurate 2700 | <<locked>> | 92% | 50,589 psi | 84% | 2339 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 31,807 psi | 53% | 2103 fps | 99.3% |
| Accurate 4350 | <<locked>> | 94% | 36,230 psi | 60% | 2251 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 49,690 psi | 83% | 2254 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,082 psi | 83% | 2274 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 37,797 psi | 63% | 2198 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 34,272 psi | 57% | 2113 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 49,632 psi | 82% | 2356 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,827 psi | 66% | 2211 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 38,638 psi | 64% | 2208 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,992 psi | 76% | 2379 fps | 99.4% |
| Alliant Power Pro 2000-MR | 38.9 gr | 82% | 36,361 psi | 60% | 2254 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,154 psi | 52% | 2087 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,717 psi | 78% | 2270 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 33,765 psi | 56% | 2139 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 35,520 psi | 59% | 2218 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 84% | 30,748 psi | 51% | 2139 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,385 psi | 80% | 2254 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,535 psi | 61% | 2195 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 30,472 psi | 51% | 2087 fps | 96.3% |
| Bofors RP7 | <<locked>> | 98% | 49,603 psi | 82% | 2365 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,018 psi | 70% | 2208 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,710 psi | 63% | 2224 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,350 psi | 69% | 2336 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 80% | 45,455 psi | 76% | 2300 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,788 psi | 76% | 2316 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 38,464 psi | 64% | 2224 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 98% | 45,281 psi | 75% | 2388 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,058 psi | 63% | 2208 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 30,255 psi | 50% | 2080 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,997 psi | 56% | 2178 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 43% | 1280 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,724 psi | 61% | 2169 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 36,956 psi | 61% | 2211 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,678 psi | 56% | 2096 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,543 psi | 77% | 2290 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 47,326 psi | 79% | 2238 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 48,631 psi | 81% | 2356 fps | 95.5% |
| IMR 4831 | <<locked>> | 94% | 35,462 psi | 59% | 2215 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 34,505 psi | 57% | 2165 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 39,827 psi | 66% | 2211 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 44,396 psi | 74% | 2283 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 36,100 psi | 60% | 2182 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 38,522 psi | 64% | 2149 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 33,388 psi | 55% | 2103 fps | 97.5% |
| Lovex S065 | <<locked>> | 94% | 41,901 psi | 70% | 2260 fps | 95.6% |
| Lovex S070 | <<locked>> | 98% | 44,628 psi | 74% | 2326 fps | 95% |
| Norma 201 | <<locked>> | 80% | 37,043 psi | 62% | 2162 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 37,028 psi | 62% | 2172 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 33,141 psi | 55% | 2129 fps | 96.1% |
| Norma URP | <<locked>> | 94% | 37,304 psi | 62% | 2254 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 32,503 psi | 54% | 2133 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 39,639 psi | 66% | 2208 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,537 psi | 64% | 2224 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,062 psi | 72% | 2251 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,918 psi | 43% | 1309 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,657 psi | 74% | 2283 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 44,672 psi | 74% | 2306 fps | 95.5% |
| ReloadSwiss RS 52 | 36.8 gr | 80% | 34,766 psi | 58% | 2218 fps | 95.9% |
| ReloadSwiss RS 60 | 37.3 gr | 80% | 28,776 psi | 48% | 2096 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 36,405 psi | 60% | 2264 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 40,176 psi | 67% | 2326 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 40,814 psi | 68% | 2201 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 35,259 psi | 59% | 2119 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 28,631 psi | 48% | 2037 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 98% | 49,603 psi | 82% | 2365 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 41,901 psi | 70% | 2260 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,100 psi | 60% | 2182 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 33,388 psi | 55% | 2103 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 44,628 psi | 74% | 2326 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,094 psi | 78% | 2297 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,705 psi | 83% | 2362 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 31,952 psi | 53% | 2126 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,543 psi | 79% | 2287 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 37,550 psi | 62% | 2178 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,419 psi | 61% | 2175 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,899 psi | 65% | 2133 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,923 psi | 53% | 2021 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 47,195 psi | 78% | 2306 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 42,467 psi | 71% | 2277 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 38,203 psi | 63% | 2136 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 37,217 psi | 62% | 2182 fps | 97.1% |
| Somchem S355 | <<locked>> | 80% | 29,805 psi | 50% | 2047 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 27,485 psi | 46% | 2067 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,135 psi | 73% | 2192 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,030 psi | 65% | 2133 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,272 psi | 57% | 2116 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,998 psi | 58% | 2119 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 28,239 psi | 47% | 1998 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 92% | 36,695 psi | 61% | 2208 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,682 psi | 66% | 2205 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 33,721 psi | 56% | 2113 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 35,766 psi | 59% | 2211 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 30,937 psi | 51% | 2060 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 38,609 psi | 64% | 2244 fps | 99.3% |
| Winchester 760 | <<locked>> | 98% | 45,585 psi | 76% | 2395 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,288 psi | 59% | 2172 fps | 97.4% |
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 101 powders for .308 Win. Ackley Improved loaded with the .308 | 200gr | Swift A-Frame. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,566 fps; across all powders the maximum-charge window runs from 1,437 fps to 2,566 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 60 rank at the top here: for .308 Win. Ackley Improved with the .308 | 200gr | Swift A-Frame 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.