Load Specifications
Load data in caliber 6 x 52 R Bretschneider with .243 | 95gr | Berger Classic Hybrid Hunter bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon BL-C2 and Alliant AR-Comp.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 42,424 psi | 89% | 2497 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 40,640 psi | 85% | 2490 fps | 98.4% |
| Accurate 2495 | <<locked>> | 94% | 41,046 psi | 86% | 2539 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 41,147 psi | 86% | 2539 fps | 98.2% |
| Accurate 4064 | <<locked>> | 96% | 40,756 psi | 85% | 2559 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 82% | 42,902 psi | 90% | 2552 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 41,727 psi | 87% | 2510 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 90% | 41,945 psi | 88% | 2569 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 41,800 psi | 87% | 2592 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 40,524 psi | 85% | 2543 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 84% | 43,105 psi | 90% | 2520 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 42,786 psi | 89% | 2451 fps | 99.7% |
| Bofors RP3 | <<locked>> | 98% | 42,873 psi | 90% | 2598 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 41,814 psi | 87% | 2470 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 90% | 41,640 psi | 87% | 2569 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 84% | 41,887 psi | 88% | 2533 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 84% | 42,554 psi | 89% | 2552 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 90% | 41,872 psi | 87% | 2546 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 43,033 psi | 90% | 2615 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,417 psi | 70% | 1611 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 42,540 psi | 89% | 2605 fps | 99.9% |
| IMR 4198 | <<locked>> | 82% | 41,582 psi | 87% | 2451 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 41,727 psi | 87% | 2510 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 86% | 43,236 psi | 90% | 2539 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 92% | 41,858 psi | 87% | 2562 fps | 98.3% |
| Lovex S062 | <<locked>> | 94% | 41,104 psi | 86% | 2520 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 40,872 psi | 85% | 2497 fps | 96.5% |
| Norma 202 | <<locked>> | 90% | 40,567 psi | 85% | 2513 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,591 psi | 70% | 1650 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 41,249 psi | 86% | 2503 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 41,452 psi | 87% | 2625 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 88% | 42,337 psi | 88% | 2510 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 92% | 41,249 psi | 86% | 2497 fps | 96.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,801 psi | 89% | 2585 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 92% | 41,858 psi | 87% | 2562 fps | 98.3% |
| Shooters World Precision | <<locked>> | 94% | 41,104 psi | 86% | 2520 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 41,278 psi | 86% | 2464 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 40,944 psi | 86% | 2480 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 40,901 psi | 85% | 2434 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 42,003 psi | 88% | 2467 fps | 99.4% |
| Somchem S321 | <<locked>> | 86% | 41,727 psi | 87% | 2536 fps | 96.9% |
| Somchem S335 | <<locked>> | 90% | 42,366 psi | 89% | 2480 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 84% | 40,756 psi | 85% | 2428 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 43,091 psi | 90% | 2480 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 41,597 psi | 87% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 41,002 psi | 86% | 2500 fps | 98.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,569 psi | 89% | 2539 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 88% | 41,423 psi | 87% | 2503 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 94% | 42,206 psi | 88% | 2539 fps | 98.8% |
| Winchester 748 | <<locked>> | 90% | 42,844 psi | 90% | 2592 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 92% | 41,800 psi | 87% | 2556 fps | 95.8% |
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% | 33,388 psi | 70% | 2326 fps | 99.1% |
| Accurate 2460 | <<locked>> | 80% | 35,665 psi | 75% | 2395 fps | 97.2% |
| Accurate 2495 | <<locked>> | 80% | 25,570 psi | 53% | 2201 fps | 97.2% |
| Accurate 2520 | <<locked>> | 80% | 31,198 psi | 65% | 2333 fps | 95.3% |
| Accurate 4064 | <<locked>> | 84% | 27,746 psi | 58% | 2270 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 39,900 psi | 83% | 2500 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 36,753 psi | 77% | 2411 fps | 95% |
| Alliant AR-Comp | 21.1 gr | 80% | 30,429 psi | 64% | 2339 fps | 99.9% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 38,856 psi | 81% | 2533 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 38,247 psi | 80% | 2497 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,203 psi | 80% | 2434 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,509 psi | 85% | 2411 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 37,478 psi | 78% | 2497 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,896 psi | 73% | 2329 fps | 95.1% |
| Hodgdon BL-C2 | 24.4 gr | 84% | 34,113 psi | 71% | 2415 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 36,637 psi | 77% | 2434 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 37,014 psi | 77% | 2444 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 88% | 39,537 psi | 83% | 2503 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 40,161 psi | 84% | 2556 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,424 psi | 51% | 1434 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,196 psi | 61% | 2316 fps | 97.3% |
| IMR 4198 | <<locked>> | 80% | 39,131 psi | 82% | 2408 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 36,753 psi | 77% | 2411 fps | 95% |
| Lovex D073.5 | <<locked>> | 80% | 35,433 psi | 74% | 2388 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 84% | 32,053 psi | 67% | 2365 fps | 95.6% |
| Lovex S062 | <<locked>> | 90% | 36,579 psi | 76% | 2428 fps | 95.2% |
| Norma 201 | <<locked>> | 88% | 38,551 psi | 81% | 2454 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 29,443 psi | 62% | 2270 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,714 psi | 52% | 1473 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,274 psi | 76% | 2405 fps | 96.5% |
| ReloadSwiss RS 60 | 26.9 gr | 94% | 36,593 psi | 76% | 2513 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 33,243 psi | 69% | 2323 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 88% | 36,289 psi | 76% | 2398 fps | 95% |
| Rottweil R 903 | <<locked>> | 98% | 39,769 psi | 83% | 2530 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 32,053 psi | 67% | 2365 fps | 95.6% |
| Shooters World Precision | <<locked>> | 90% | 36,579 psi | 76% | 2428 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,435 psi | 80% | 2411 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,522 psi | 80% | 2434 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,807 psi | 66% | 2247 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,311 psi | 57% | 2159 fps | 95.6% |
| Somchem S321 | <<locked>> | 82% | 36,347 psi | 76% | 2428 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 31,082 psi | 65% | 2251 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 80% | 36,216 psi | 76% | 2346 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 31,604 psi | 66% | 2260 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,658 psi | 56% | 2215 fps | 97.4% |
| Vihtavuori N140 | <<locked>> | 80% | 28,137 psi | 59% | 2221 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 94% | 34,766 psi | 73% | 2388 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 36,376 psi | 76% | 2402 fps | 95% |
| Vihtavuori N540 | <<locked>> | 84% | 30,603 psi | 64% | 2297 fps | 95.6% |
| Winchester 748 | <<locked>> | 84% | 35,230 psi | 74% | 2438 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 39,465 psi | 82% | 2510 fps | 95.1% |
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 51 powders for 6 x 52 R Bretschneider loaded with the .243 | 95gr | Berger Classic Hybrid Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,625 fps; across all powders the maximum-charge window runs from 1,611 fps to 2,625 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Rottweil R 903 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, Hodgdon BL-C2, Alliant AR-Comp rank at the top here: for 6 x 52 R Bretschneider with the .243 | 95gr | Berger Classic Hybrid Hunter 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.