Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:220 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.003"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:74 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:12.0
Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 220gr | Rhino Solid Shank bullet and 116 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Hodgdon Superformance.
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 2015 | <<locked>> | 82% | 58,798 psi | 90% | 2385 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 58,349 psi | 90% | 2418 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,376 psi | 87% | 2448 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,907 psi | 75% | 2434 fps | 99.5% |
| Accurate 4064 | <<locked>> | 88% | 58,508 psi | 90% | 2467 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,158 psi | 85% | 2526 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 50,691 psi | 78% | 2556 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 84% | 57,769 psi | 89% | 2497 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 58,769 psi | 90% | 2500 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,275 psi | 87% | 2566 fps | 98.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 50,343 psi | 77% | 2507 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,608 psi | 87% | 2448 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 58,508 psi | 90% | 2411 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 58,044 psi | 89% | 2618 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,043 psi | 86% | 2480 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,463 psi | 87% | 2500 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,869 psi | 86% | 2572 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,217 psi | 88% | 2598 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,245 psi | 85% | 2556 fps | 98.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,704 psi | 75% | 2507 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,166 psi | 71% | 2454 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,350 psi | 62% | 2388 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,388 psi | 81% | 2625 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,943 psi | 89% | 2523 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 44,860 psi | 69% | 2444 fps | 97% |
| Bofors RP3 | <<locked>> | 88% | 56,652 psi | 87% | 2493 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,704 psi | 75% | 2507 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 56,289 psi | 87% | 2484 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,986 psi | 89% | 2425 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,318 psi | 87% | 2477 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 57,435 psi | 88% | 2513 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 57,595 psi | 89% | 2575 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 92% | 57,537 psi | 89% | 2536 fps | 99.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 54,027 psi | 83% | 2513 fps | 96.7% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 52,808 psi | 81% | 2493 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 84% | 58,450 psi | 90% | 2503 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,260 psi | 87% | 2503 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 58,479 psi | 90% | 2539 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,841 psi | 89% | 2615 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 56% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,086 psi | 86% | 2464 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,492 psi | 85% | 2434 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 58,378 psi | 90% | 2484 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,725 psi | 89% | 2477 fps | 99.7% |
| IMR 4350 | <<locked>> | 96% | 56,768 psi | 87% | 2510 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,827 psi | 89% | 2503 fps | 99.7% |
| IMR 4831 | <<locked>> | 96% | 55,564 psi | 85% | 2516 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 57,943 psi | 89% | 2523 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,811 psi | 86% | 2503 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 47,732 psi | 73% | 2480 fps | 96.1% |
| IMR 8208 XBR | <<locked>> | 82% | 56,608 psi | 87% | 2448 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 58,305 psi | 90% | 2474 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,724 psi | 87% | 2428 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 58,407 psi | 90% | 2474 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,624 psi | 89% | 2500 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 55,463 psi | 85% | 2493 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,712 psi | 63% | 2306 fps | 98.3% |
| Norma 201 | <<locked>> | 84% | 56,608 psi | 87% | 2444 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,392 psi | 88% | 2441 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,738 psi | 86% | 2487 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,653 psi | 89% | 2562 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 51,648 psi | 79% | 2585 fps | 99.4% |
| Norma URP | <<locked>> | 96% | 57,377 psi | 88% | 2556 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 56,144 psi | 86% | 2510 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 47,906 psi | 74% | 2493 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 56,159 psi | 86% | 2562 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,293 psi | 65% | 2385 fps | 96.9% |
| Ramshot TAC | <<locked>> | 82% | 56,536 psi | 87% | 2477 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,739 psi | 87% | 2490 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,927 psi | 57% | 1526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,334 psi | 88% | 2500 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,406 psi | 88% | 2562 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,840 psi | 87% | 2589 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 58,508 psi | 90% | 2595 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,406 psi | 88% | 2625 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 38,986 psi | 60% | 2395 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 82% | 57,609 psi | 89% | 2418 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,159 psi | 88% | 2444 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,826 psi | 87% | 2490 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 58,102 psi | 89% | 2536 fps | 98.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,505 psi | 84% | 2543 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 92% | 56,289 psi | 87% | 2484 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,624 psi | 89% | 2500 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 84% | 58,305 psi | 90% | 2474 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 58,407 psi | 90% | 2474 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,463 psi | 85% | 2493 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 58,378 psi | 90% | 2546 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,492 psi | 85% | 2461 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,289 psi | 87% | 2477 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,537 psi | 89% | 2375 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 58,363 psi | 90% | 2382 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,783 psi | 89% | 2461 fps | 99.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,012 psi | 83% | 2539 fps | 98.7% |
| Somchem S335 | <<locked>> | 84% | 57,188 psi | 88% | 2379 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,013 psi | 85% | 2448 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,724 psi | 87% | 2484 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 56,275 psi | 87% | 2487 fps | 97% |
| Somchem S365 | <<locked>> | 98% | 56,376 psi | 87% | 2556 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,027 psi | 85% | 2520 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 84% | 57,957 psi | 89% | 2359 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,406 psi | 88% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,682 psi | 89% | 2421 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 58,175 psi | 89% | 2461 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,246 psi | 87% | 2507 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,514 psi | 73% | 2405 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 82% | 57,087 psi | 88% | 2448 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,782 psi | 86% | 2421 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 58,784 psi | 90% | 2559 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,517 psi | 79% | 2520 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,286 psi | 80% | 2572 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,985 psi | 86% | 2484 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,740 psi | 89% | 2493 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,595 psi | 89% | 2575 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,510 psi | 64% | 2503 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,275 psi | 87% | 2480 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,605 psi | 79% | 2467 fps | 98.1% |
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% | 55,274 psi | 85% | 2346 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 48,356 psi | 74% | 2300 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,325 psi | 71% | 2303 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 30,647 psi | 47% | 2110 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 45,774 psi | 70% | 2306 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,403 psi | 53% | 2195 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 98% | 47,297 psi | 73% | 2503 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 51,227 psi | 79% | 2411 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,424 psi | 67% | 2283 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 40,973 psi | 63% | 2323 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 98% | 47,253 psi | 73% | 2457 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,345 psi | 82% | 2405 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,897 psi | 84% | 2372 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,239 psi | 73% | 2467 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,656 psi | 67% | 2306 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,818 psi | 72% | 2365 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,040 psi | 52% | 2205 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,101 psi | 59% | 2310 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 40,306 psi | 62% | 2316 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 40,234 psi | 62% | 2359 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 24,816 psi | 38% | 2001 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 29,776 psi | 46% | 2142 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 82% | 27,891 psi | 43% | 2139 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,633 psi | 78% | 2425 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 39,479 psi | 61% | 2346 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 43,845 psi | 67% | 2320 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 40,234 psi | 62% | 2359 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 38,841 psi | 60% | 2208 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,665 psi | 84% | 2385 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,736 psi | 81% | 2434 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,121 psi | 68% | 2323 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 36,274 psi | 56% | 2234 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 39,581 psi | 61% | 2254 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 96% | 47,340 psi | 73% | 2411 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 49,559 psi | 76% | 2448 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 51,822 psi | 80% | 2418 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,502 psi | 48% | 2113 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,138 psi | 74% | 2405 fps | 100% |
| Hodgdon Superformance | 50.3 gr | 80% | 35,317 psi | 54% | 2241 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 42% | 1329 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,429 psi | 76% | 2375 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,098 psi | 80% | 2395 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,672 psi | 70% | 2313 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,979 psi | 74% | 2339 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 36,796 psi | 57% | 2192 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,234 psi | 62% | 2234 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 33,272 psi | 51% | 2159 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 48,022 psi | 74% | 2392 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 46,354 psi | 71% | 2362 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 44,817 psi | 69% | 2431 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 53,345 psi | 82% | 2405 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,966 psi | 78% | 2385 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,328 psi | 77% | 2343 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,818 psi | 70% | 2310 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,884 psi | 58% | 2195 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 36,085 psi | 56% | 2178 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 31,604 psi | 49% | 2129 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 50,140 psi | 77% | 2362 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,531 psi | 78% | 2356 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,195 psi | 71% | 2356 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,423 psi | 64% | 2316 fps | 95.7% |
| Norma MRP | <<locked>> | 88% | 34,577 psi | 53% | 2270 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 34,461 psi | 53% | 2195 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 45,963 psi | 71% | 2372 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 44,570 psi | 69% | 2438 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 33,272 psi | 51% | 2178 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 36,941 psi | 57% | 2280 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 53,040 psi | 82% | 2431 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,156 psi | 82% | 2444 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 42% | 1362 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,425 psi | 68% | 2313 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,024 psi | 77% | 2464 fps | 100% |
| ReloadSwiss RS 60 | 47.6 gr | 80% | 40,509 psi | 62% | 2359 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,881 psi | 52% | 2208 fps | 97.9% |
| ReloadSwiss RS 70 | 48.3 gr | 80% | 33,344 psi | 51% | 2215 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 36,477 psi | 56% | 2339 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 54,273 psi | 83% | 2379 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,659 psi | 73% | 2320 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,336 psi | 64% | 2274 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 45,121 psi | 69% | 2349 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 90% | 39,146 psi | 60% | 2300 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 38,841 psi | 60% | 2208 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,884 psi | 58% | 2195 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,966 psi | 78% | 2385 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,818 psi | 70% | 2310 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,085 psi | 56% | 2178 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,090 psi | 65% | 2316 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,953 psi | 80% | 2415 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,443 psi | 76% | 2385 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,082 psi | 79% | 2300 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,975 psi | 66% | 2192 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,057 psi | 57% | 2146 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 38,783 psi | 60% | 2293 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 50,807 psi | 78% | 2303 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,503 psi | 79% | 2402 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,800 psi | 64% | 2274 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 49,400 psi | 76% | 2392 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 30,893 psi | 48% | 2156 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 35,070 psi | 54% | 2195 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 51,576 psi | 79% | 2287 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,776 psi | 74% | 2287 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,080 psi | 74% | 2303 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,842 psi | 61% | 2211 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,853 psi | 55% | 2192 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 36,796 psi | 57% | 2221 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 53,679 psi | 83% | 2405 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,108 psi | 71% | 2300 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,128 psi | 54% | 2192 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 26,861 psi | 41% | 2064 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 96% | 45,701 psi | 70% | 2467 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,954 psi | 54% | 2165 fps | 99.6% |
| Winchester 748 | <<locked>> | 80% | 54,027 psi | 83% | 2448 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 36,477 psi | 56% | 2238 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 23,206 psi | 36% | 2018 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,313 psi | 76% | 2392 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 39,450 psi | 61% | 2274 fps | 95.2% |
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 123 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 220gr | Rhino Solid Shank. Alliant Reloder-26 delivers the highest muzzle velocity at 2,625 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,625 fps. Accurate 3100 gives the best case fill at 100 %, and 123 of the 123 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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 60, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 220gr | Rhino Solid Shank they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.