Load Specifications
Load data in caliber .264 RLB TM with .264 | 140gr | Swift A-Frame bullet and 94 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 CFE223.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 51,967 psi | 88% | 2402 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 52,359 psi | 89% | 2480 fps | 98.9% |
| Accurate 2230 | <<locked>> | 82% | 52,837 psi | 90% | 2490 fps | 99.2% |
| Accurate 2460 | <<locked>> | 86% | 50,241 psi | 86% | 2425 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 51,358 psi | 87% | 2451 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 51,068 psi | 87% | 2470 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 50,894 psi | 87% | 2484 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 39,987 psi | 68% | 2388 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 84% | 52,794 psi | 90% | 2356 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 50,140 psi | 85% | 2336 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 50,647 psi | 86% | 2477 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 98% | 51,605 psi | 88% | 2470 fps | 98.9% |
| ADI AR 2219 | <<locked>> | 84% | 52,446 psi | 89% | 2461 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 50,386 psi | 86% | 2441 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 92% | 52,620 psi | 90% | 2464 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 51,677 psi | 88% | 2533 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 49,603 psi | 84% | 2562 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 50,357 psi | 86% | 2490 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 86% | 51,837 psi | 88% | 2405 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 51,488 psi | 88% | 2510 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 41,510 psi | 71% | 2398 fps | 96.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 47,268 psi | 80% | 2533 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 51,256 psi | 87% | 2356 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 50,038 psi | 85% | 2487 fps | 98.5% |
| Bofors RP3 | <<locked>> | 98% | 50,096 psi | 85% | 2500 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 52,953 psi | 90% | 2431 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 51,837 psi | 88% | 2513 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 49,763 psi | 85% | 2539 fps | 99% |
| Hodgdon H322 | <<locked>> | 86% | 50,821 psi | 87% | 2441 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 51,909 psi | 88% | 2470 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 51,866 psi | 88% | 2503 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 92% | 51,039 psi | 87% | 2487 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,739 psi | 64% | 2300 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 52,533 psi | 89% | 2556 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,316 psi | 58% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 52,388 psi | 89% | 2487 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 50,082 psi | 85% | 2480 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 51,184 psi | 87% | 2457 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 94% | 52,170 psi | 89% | 2434 fps | 95.9% |
| IMR 4198 | <<locked>> | 86% | 52,910 psi | 90% | 2372 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 38,841 psi | 66% | 2346 fps | 96.1% |
| IMR 4895 | <<locked>> | 96% | 52,736 psi | 90% | 2539 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 90% | 50,386 psi | 86% | 2441 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 86% | 50,038 psi | 85% | 2428 fps | 100% |
| Lovex D073.6 | <<locked>> | 94% | 52,272 psi | 89% | 2497 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 51,358 psi | 87% | 2415 fps | 99.3% |
| Lovex S062 | <<locked>> | 96% | 50,024 psi | 85% | 2451 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 46,137 psi | 79% | 2392 fps | 96.2% |
| Norma 200 | <<locked>> | 82% | 52,301 psi | 89% | 2385 fps | 100% |
| Norma 201 | <<locked>> | 94% | 52,692 psi | 90% | 2474 fps | 99.9% |
| Norma 202 | <<locked>> | 94% | 53,084 psi | 90% | 2484 fps | 100% |
| Norma 203B | <<locked>> | 96% | 50,546 psi | 86% | 2500 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 41,176 psi | 70% | 2392 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 96% | 50,502 psi | 86% | 2516 fps | 99.2% |
| Ramshot TAC | <<locked>> | 90% | 50,865 psi | 87% | 2451 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 52,968 psi | 90% | 2516 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 51,605 psi | 88% | 2441 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,534 psi | 59% | 1496 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 50,285 psi | 86% | 2431 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 98% | 53,040 psi | 90% | 2490 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 50,647 psi | 86% | 2562 fps | 99.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,517 psi | 86% | 2589 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 40,466 psi | 69% | 2405 fps | 96% |
| Rottweil R 901 | <<locked>> | 90% | 50,937 psi | 87% | 2421 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 53,084 psi | 90% | 2470 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,038 psi | 85% | 2490 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 46,137 psi | 79% | 2392 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 52,272 psi | 89% | 2497 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 50,024 psi | 85% | 2451 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 49,922 psi | 85% | 2398 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 52,620 psi | 90% | 2470 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 51,837 psi | 88% | 2543 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 52,982 psi | 90% | 2425 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 51,837 psi | 88% | 2470 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 52,315 psi | 89% | 2497 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 52,301 psi | 89% | 2388 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 51,024 psi | 87% | 2382 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 51,401 psi | 88% | 2477 fps | 99.9% |
| Somchem S335 | <<locked>> | 92% | 50,952 psi | 87% | 2388 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 51,256 psi | 87% | 2467 fps | 99.2% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,734 psi | 86% | 2487 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,332 psi | 62% | 2339 fps | 98.4% |
| Vihtavuori N130 | <<locked>> | 88% | 52,185 psi | 89% | 2362 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 52,054 psi | 89% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 51,416 psi | 88% | 2438 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 53,142 psi | 90% | 2457 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,240 psi | 84% | 2434 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,352 psi | 74% | 2388 fps | 96.8% |
| Vihtavuori N530 | <<locked>> | 90% | 50,749 psi | 86% | 2441 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 96% | 51,445 psi | 88% | 2461 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 42,279 psi | 72% | 2398 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,904 psi | 76% | 2385 fps | 98.8% |
| Winchester 748 | <<locked>> | 92% | 52,982 psi | 90% | 2530 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 51,561 psi | 88% | 2503 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,145 psi | 65% | 2205 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 49,240 psi | 84% | 2434 fps | 98.5% |
| Accurate 2230 | <<locked>> | 80% | 49,066 psi | 84% | 2438 fps | 98.8% |
| Accurate 2460 | <<locked>> | 80% | 40,973 psi | 70% | 2287 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 30,414 psi | 52% | 2123 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 36,260 psi | 62% | 2244 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 28,776 psi | 49% | 2106 fps | 98.5% |
| Accurate 4350 | <<locked>> | 98% | 37,376 psi | 64% | 2343 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 46,818 psi | 80% | 2277 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,195 psi | 80% | 2293 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 35,027 psi | 60% | 2208 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 36,027 psi | 61% | 2211 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 45,832 psi | 78% | 2375 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,956 psi | 63% | 2221 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 35,462 psi | 60% | 2228 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,380 psi | 72% | 2388 fps | 98.7% |
| Alliant Power Pro 2000-MR | 28.5 gr | 86% | 38,261 psi | 65% | 2356 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 28,631 psi | 49% | 2093 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,482 psi | 74% | 2293 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 33,040 psi | 56% | 2188 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 96% | 36,941 psi | 63% | 2306 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 32,184 psi | 55% | 2234 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,324 psi | 77% | 2277 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 35,897 psi | 61% | 2244 fps | 95.1% |
| Bofors RP3 | <<locked>> | 82% | 29,617 psi | 50% | 2136 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,117 psi | 67% | 2221 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,505 psi | 59% | 2231 fps | 98.1% |
| Hodgdon CFE223 | 27.1 gr | 80% | 37,956 psi | 65% | 2336 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 80% | 42,119 psi | 72% | 2320 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,496 psi | 72% | 2336 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 37,739 psi | 64% | 2277 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 35,201 psi | 60% | 2218 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 31,546 psi | 54% | 2169 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,314 psi | 53% | 2182 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,454 psi | 43% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,910 psi | 58% | 2178 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 33,562 psi | 57% | 2221 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 33,388 psi | 57% | 2152 fps | 95.1% |
| IMR 4166 Enduron | <<locked>> | 92% | 49,226 psi | 84% | 2392 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 44,280 psi | 75% | 2260 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 36,550 psi | 62% | 2300 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 31,734 psi | 54% | 2172 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 36,956 psi | 63% | 2221 fps | 98% |
| Lovex D073.5 | <<locked>> | 80% | 40,901 psi | 70% | 2293 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 32,692 psi | 56% | 2185 fps | 98.6% |
| Lovex S060 | <<locked>> | 80% | 36,056 psi | 61% | 2162 fps | 96.5% |
| Lovex S062 | <<locked>> | 80% | 30,792 psi | 52% | 2113 fps | 96.4% |
| Lovex S065 | <<locked>> | 98% | 43,468 psi | 74% | 2349 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 48,704 psi | 83% | 2343 fps | 100% |
| Norma 201 | <<locked>> | 80% | 34,171 psi | 58% | 2169 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 34,258 psi | 58% | 2188 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 32,416 psi | 55% | 2178 fps | 95.4% |
| Norma URP | <<locked>> | 98% | 38,783 psi | 66% | 2349 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 84% | 34,055 psi | 58% | 2231 fps | 95.6% |
| Ramshot TAC | <<locked>> | 84% | 41,974 psi | 71% | 2310 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,636 psi | 61% | 2234 fps | 96.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,176 psi | 68% | 2264 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,353 psi | 43% | 1332 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,553 psi | 71% | 2300 fps | 99.6% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 46,601 psi | 79% | 2398 fps | 95.4% |
| ReloadSwiss RS 52 | 26.3 gr | 82% | 33,794 psi | 58% | 2264 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 26,658 psi | 45% | 2093 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 37,695 psi | 64% | 2352 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 37,782 psi | 64% | 2215 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 32,706 psi | 56% | 2133 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 29,544 psi | 50% | 2126 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 43,468 psi | 74% | 2349 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,692 psi | 56% | 2185 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 30,792 psi | 52% | 2113 fps | 96.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,743 psi | 74% | 2306 fps | 98.9% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,238 psi | 79% | 2385 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 33,286 psi | 57% | 2218 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,874 psi | 75% | 2300 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 39,378 psi | 67% | 2277 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,489 psi | 57% | 2178 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,013 psi | 61% | 2142 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,298 psi | 50% | 2028 fps | 98.9% |
| Somchem S321 | <<locked>> | 80% | 39,305 psi | 67% | 2290 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 35,360 psi | 60% | 2149 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 34,287 psi | 58% | 2188 fps | 95.8% |
| Somchem S355 | <<locked>> | 84% | 31,125 psi | 53% | 2142 fps | 95.5% |
| Somchem S365 | <<locked>> | 92% | 28,703 psi | 49% | 2159 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 40,901 psi | 70% | 2211 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,984 psi | 61% | 2146 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,125 psi | 53% | 2126 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 32,227 psi | 55% | 2129 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 27,528 psi | 47% | 2044 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 96% | 38,392 psi | 65% | 2303 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 36,811 psi | 63% | 2218 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 80% | 30,850 psi | 53% | 2119 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 96% | 37,115 psi | 63% | 2303 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 32,387 psi | 55% | 2149 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,172 psi | 60% | 2247 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,372 psi | 55% | 2175 fps | 96.1% |
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 94 powders for .264 RLB TM loaded with the .264 | 140gr | Swift A-Frame. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,463 fps to 2,589 fps. Accurate 4350 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 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, Hodgdon CFE223 rank at the top here: for .264 RLB TM with the .264 | 140gr | 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.