Load Specifications
Load data in caliber 6.5 x 50 R with .264 | 122gr | Lehigh Defense Controlled Chaos bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester 748, Hodgdon H335 and Somchem S321.
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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Max Load - Barrel Length: 23.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 45,527 psi | 86% | 2283 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 46,180 psi | 87% | 2369 fps | 99.9% |
| Accurate 2460 | <<locked>> | 94% | 47,253 psi | 89% | 2411 fps | 98.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,900 psi | 75% | 2349 fps | 99.7% |
| Accurate 2520 | <<locked>> | 98% | 45,107 psi | 85% | 2431 fps | 98.1% |
| Accurate 2520 | <<locked>> | 98% | 45,107 psi | 85% | 2431 fps | 98.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,144 psi | 70% | 2316 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 88% | 46,615 psi | 88% | 2297 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 88% | 47,079 psi | 89% | 2306 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 86% | 46,427 psi | 88% | 2336 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 46,963 psi | 89% | 2425 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 98% | 47,848 psi | 90% | 2415 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 98% | 44,976 psi | 85% | 2431 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 45,194 psi | 85% | 2454 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 46,992 psi | 89% | 2392 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 47,848 psi | 90% | 2343 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 47,558 psi | 90% | 2333 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,498 psi | 86% | 2336 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 98% | 45,107 psi | 85% | 2438 fps | 97% |
| Hodgdon H322 | <<locked>> | 96% | 47,572 psi | 90% | 2434 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 90% | 46,412 psi | 88% | 2421 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 86% | 45,585 psi | 86% | 2293 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,474 psi | 61% | 1440 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,350 psi | 78% | 2395 fps | 99.4% |
| IMR 4198 | <<locked>> | 90% | 45,832 psi | 87% | 2329 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 47,848 psi | 90% | 2415 fps | 96.8% |
| Lovex D073.4 | <<locked>> | 86% | 44,802 psi | 85% | 2375 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 94% | 47,587 psi | 90% | 2415 fps | 97.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,512 psi | 84% | 2421 fps | 98% |
| Lovex S053 | <<locked>> | 82% | 47,543 psi | 90% | 2254 fps | 100% |
| Norma 200 | <<locked>> | 88% | 47,065 psi | 89% | 2375 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 46,731 psi | 88% | 2405 fps | 96.7% |
| Norma 202ᴾ | <<locked>> | 100% | 46,267 psi | 87% | 2421 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,024 psi | 60% | 1470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 45,600 psi | 86% | 2382 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 96% | 45,281 psi | 86% | 2369 fps | 98.5% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 43,816 psi | 83% | 2349 fps | 96% |
| Shooters World AR Plus | <<locked>> | 86% | 44,802 psi | 85% | 2375 fps | 97.8% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,512 psi | 84% | 2421 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 46,079 psi | 87% | 2349 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 46,688 psi | 88% | 2110 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 47,848 psi | 90% | 2434 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 47,703 psi | 90% | 2395 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 47,558 psi | 90% | 2346 fps | 98.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,509 psi | 77% | 2257 fps | 98.5% |
| Somchem S321 | <<locked>> | 94% | 45,934 psi | 87% | 2415 fps | 96.8% |
| Somchem S335 | <<locked>> | 98% | 45,730 psi | 86% | 2346 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 86% | 46,485 psi | 88% | 2293 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 47,456 psi | 90% | 2346 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 46,731 psi | 88% | 2349 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,582 psi | 79% | 2356 fps | 99.8% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,121 psi | 83% | 2362 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 96% | 45,556 psi | 86% | 2375 fps | 96.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,279 psi | 80% | 2352 fps | 98% |
| Winchester 748 | <<locked>> | 96% | 47,413 psi | 90% | 2467 fps | 97.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,830 psi | 81% | 2244 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 27,949 psi | 53% | 2037 fps | 96.9% |
| Accurate 2460 | <<locked>> | 82% | 31,821 psi | 60% | 2142 fps | 95% |
| Accurate 2495 | <<locked>> | 84% | 23,598 psi | 45% | 2005 fps | 95.6% |
| Accurate 2520 | <<locked>> | 90% | 34,069 psi | 64% | 2241 fps | 95.3% |
| Accurate 2520 | <<locked>> | 90% | 34,069 psi | 64% | 2241 fps | 95.3% |
| Accurate 4064 | <<locked>> | 94% | 30,734 psi | 58% | 2188 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 36,579 psi | 69% | 2129 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 36,941 psi | 70% | 2136 fps | 96% |
| ADI AR 2207 | <<locked>> | 80% | 38,827 psi | 73% | 2224 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,055 psi | 64% | 2198 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 94% | 42,467 psi | 80% | 2333 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 25,657 psi | 48% | 2044 fps | 98.4% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 42,467 psi | 80% | 2408 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,198 psi | 61% | 2139 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,842 psi | 75% | 2221 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,925 psi | 66% | 2126 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 38,116 psi | 72% | 2211 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 94% | 39,392 psi | 74% | 2339 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 29,022 psi | 55% | 2080 fps | 95.2% |
| Hodgdon H335 | 22.5 gr | 80% | 33,141 psi | 63% | 2185 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 38,363 psi | 72% | 2172 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,656 psi | 45% | 1280 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 27,137 psi | 51% | 2087 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 34,389 psi | 65% | 2136 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 94% | 42,467 psi | 80% | 2333 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 36,564 psi | 69% | 2234 fps | 95.8% |
| Lovex D073.5 | <<locked>> | 86% | 36,245 psi | 68% | 2228 fps | 95% |
| Lovex D073.6 | <<locked>> | 92% | 34,069 psi | 64% | 2241 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 45,252 psi | 85% | 2224 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,782 psi | 69% | 2211 fps | 99.9% |
| Norma 201 | <<locked>> | 96% | 41,379 psi | 78% | 2316 fps | 95.4% |
| Norma 202 | <<locked>> | 88% | 31,966 psi | 60% | 2162 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,873 psi | 45% | 1316 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 35,360 psi | 67% | 2205 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 84% | 32,053 psi | 61% | 2123 fps | 95% |
| Rottweil R 902 | <<locked>> | 98% | 41,249 psi | 78% | 2306 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 36,564 psi | 69% | 2234 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 34,069 psi | 64% | 2241 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 42,830 psi | 81% | 2297 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,756 psi | 79% | 2044 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 34,185 psi | 65% | 2198 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,996 psi | 62% | 2142 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 32,692 psi | 62% | 2093 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 29,863 psi | 56% | 2051 fps | 95.5% |
| Somchem S321 | 24.9 gr | 90% | 39,755 psi | 75% | 2313 fps | 95.3% |
| Somchem S335 | <<locked>> | 84% | 30,139 psi | 57% | 2060 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 38,986 psi | 74% | 2188 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,256 psi | 59% | 2070 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 80% | 27,166 psi | 51% | 1988 fps | 96.3% |
| Vihtavuori N135 | <<locked>> | 82% | 23,975 psi | 45% | 1978 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 88% | 30,400 psi | 57% | 2106 fps | 95% |
| Vihtavuori N530 | <<locked>> | 92% | 40,190 psi | 76% | 2290 fps | 95% |
| Vihtavuori N540 | <<locked>> | 92% | 32,938 psi | 62% | 2178 fps | 95.3% |
| Winchester 748 | 24.9 gr | 90% | 38,711 psi | 73% | 2320 fps | 95.5% |
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 55 powders for 6.5 x 50 R loaded with the .264 | 122gr | Lehigh Defense Controlled Chaos. Winchester 748 delivers the highest muzzle velocity at 2,467 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,467 fps. Accurate 2495 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 122.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss 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. Winchester 748, Hodgdon H335, Somchem S321 rank at the top here: for 6.5 x 50 R with the .264 | 122gr | Lehigh Defense Controlled Chaos 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.