Load Specifications
Load data in caliber 6 x 52 R Bretschneider with .243 | 76gr | Norma Tipstrike bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Alliant AR-Comp and Hodgdon H335.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 41,640 psi | 87% | 2776 fps | 99.1% |
| Accurate 2460 | <<locked>> | 90% | 42,598 psi | 89% | 2808 fps | 96.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,133 psi | 86% | 2835 fps | 99.3% |
| Accurate 2520 | <<locked>> | 94% | 42,612 psi | 89% | 2848 fps | 96.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,247 psi | 80% | 2792 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 84% | 41,771 psi | 87% | 2690 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 84% | 42,148 psi | 88% | 2697 fps | 96% |
| ADI AR 2207 | <<locked>> | 82% | 41,350 psi | 86% | 2753 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 42,264 psi | 88% | 2828 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 96% | 43,236 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 41,858 psi | 87% | 2799 fps | 99.7% |
| Alliant Reloder-7 | <<locked>> | 82% | 43,018 psi | 90% | 2759 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 42,830 psi | 89% | 2726 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 88% | 40,799 psi | 85% | 2802 fps | 97.6% |
| Hodgdon H335 | <<locked>> | 88% | 41,916 psi | 88% | 2822 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,169 psi | 67% | 1801 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 41,191 psi | 86% | 2871 fps | 98.5% |
| IMR 4198 | <<locked>> | 86% | 41,307 psi | 86% | 2746 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 84% | 42,728 psi | 89% | 2818 fps | 96% |
| Lovex D073.6 | <<locked>> | 98% | 43,120 psi | 90% | 2871 fps | 96.5% |
| Norma 200 | <<locked>> | 84% | 42,032 psi | 88% | 2782 fps | 99.9% |
| Norma 202 | <<locked>> | 96% | 42,192 psi | 88% | 2828 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,126 psi | 67% | 1844 fps | 100% |
| Rottweil R 901 | <<locked>> | 92% | 41,162 psi | 86% | 2769 fps | 96.4% |
| Shooters World AR Plus | <<locked>> | 84% | 42,728 psi | 89% | 2818 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 98% | 43,120 psi | 90% | 2871 fps | 96.5% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 42,960 psi | 90% | 2835 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 42,801 psi | 89% | 2808 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 42,757 psi | 89% | 2743 fps | 96.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,205 psi | 86% | 2726 fps | 97.6% |
| Somchem S335 | <<locked>> | 94% | 41,539 psi | 87% | 2740 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 82% | 41,437 psi | 87% | 2710 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 42,685 psi | 89% | 2753 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 94% | 42,090 psi | 88% | 2749 fps | 99% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,424 psi | 89% | 2848 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 98% | 42,583 psi | 89% | 2808 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 98% | 41,118 psi | 86% | 2792 fps | 96.5% |
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% | 28,268 psi | 59% | 2464 fps | 95.2% |
| Accurate 2460 | <<locked>> | 86% | 37,072 psi | 77% | 2694 fps | 95.1% |
| Accurate 2495 | <<locked>> | 88% | 27,412 psi | 57% | 2516 fps | 95.5% |
| Accurate 2520 | <<locked>> | 92% | 39,653 psi | 83% | 2789 fps | 95.5% |
| Accurate 4064 | <<locked>> | 96% | 33,605 psi | 70% | 2687 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 37,318 psi | 78% | 2598 fps | 96.8% |
| Accurate LT-32 | <<locked>> | 82% | 39,856 psi | 83% | 2648 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 38,943 psi | 81% | 2707 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,330 psi | 72% | 2651 fps | 95.6% |
| Alliant AR-Comp | 21.9 gr | 80% | 26,179 psi | 55% | 2474 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,663 psi | 68% | 2595 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,625 psi | 85% | 2713 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,346 psi | 74% | 2572 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 82% | 33,547 psi | 70% | 2631 fps | 95.2% |
| Hodgdon H335 | 25.3 gr | 84% | 36,245 psi | 76% | 2697 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,670 psi | 49% | 1611 fps | 100% |
| IMR 3031 | 24 gr | 88% | 31,952 psi | 67% | 2651 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 34,664 psi | 72% | 2602 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 82% | 39,827 psi | 83% | 2759 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 96% | 40,118 psi | 84% | 2812 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 37,072 psi | 77% | 2680 fps | 99.4% |
| Norma 202 | <<locked>> | 92% | 37,217 psi | 78% | 2723 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,786 psi | 50% | 1654 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 38,464 psi | 80% | 2713 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 82% | 39,827 psi | 83% | 2759 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 96% | 40,118 psi | 84% | 2812 fps | 95.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 37,130 psi | 78% | 2710 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,402 psi | 70% | 2602 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,608 psi | 79% | 2638 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 34,301 psi | 72% | 2579 fps | 95.6% |
| Somchem S335 | <<locked>> | 88% | 34,403 psi | 72% | 2589 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 39,102 psi | 82% | 2664 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,618 psi | 66% | 2513 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 29,124 psi | 61% | 2454 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 86% | 27,427 psi | 57% | 2490 fps | 95% |
| Vihtavuori N140 | <<locked>> | 92% | 35,114 psi | 73% | 2648 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 96% | 38,421 psi | 80% | 2733 fps | 95.6% |
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 70 powders for 6 x 52 R Bretschneider loaded with the .243 | 76gr | Norma Tipstrike. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,801 fps to 2,904 fps. Accurate 2495 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 76.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Reloder- TS 15.5 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. IMR 3031, Alliant AR-Comp, Hodgdon H335 rank at the top here: for 6 x 52 R Bretschneider with the .243 | 76gr | Norma Tipstrike they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2230, ADI AR 2206H, ADI Benchmark 8208 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.