Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 75gr | Remington HP V-Max bullet and 36 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Accurate 4064 and Accurate 2520.
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% | 43,076 psi | 90% | 2887 fps | 99.7% |
| Accurate 2460 | <<locked>> | 84% | 41,176 psi | 86% | 2867 fps | 97.6% |
| Accurate 2495 | <<locked>> | 94% | 41,321 psi | 86% | 2913 fps | 99.8% |
| Accurate 2520 | <<locked>> | 88% | 41,553 psi | 87% | 2913 fps | 97.3% |
| Accurate 4064 | <<locked>> | 96% | 41,466 psi | 87% | 2936 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 82% | 42,960 psi | 90% | 2933 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 90% | 42,409 psi | 89% | 2963 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 43,091 psi | 90% | 2907 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 43,308 psi | 90% | 2825 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 41,829 psi | 87% | 2835 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 90% | 42,308 psi | 88% | 2946 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 84% | 42,090 psi | 88% | 2917 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 84% | 42,757 psi | 89% | 2927 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,127 psi | 69% | 1903 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 43,033 psi | 90% | 2995 fps | 99.5% |
| IMR 4198 | <<locked>> | 82% | 41,989 psi | 88% | 2844 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 40,930 psi | 86% | 2861 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 92% | 42,757 psi | 89% | 2949 fps | 97.6% |
| Norma 202 | <<locked>> | 90% | 41,075 psi | 86% | 2890 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,112 psi | 69% | 1946 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 41,539 psi | 87% | 2877 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 42,177 psi | 88% | 3002 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 88% | 42,627 psi | 89% | 2887 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 42,757 psi | 89% | 2949 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 41,321 psi | 86% | 2867 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 40,872 psi | 85% | 2799 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 42,482 psi | 89% | 2841 fps | 98.9% |
| Somchem S321 | <<locked>> | 86% | 42,221 psi | 88% | 2910 fps | 95.9% |
| Somchem S335 | <<locked>> | 90% | 42,525 psi | 89% | 2851 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 41,176 psi | 86% | 2808 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 88% | 40,567 psi | 85% | 2808 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 94% | 42,047 psi | 88% | 2917 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 92% | 41,365 psi | 86% | 2871 fps | 98.2% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,960 psi | 90% | 2907 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 94% | 42,830 psi | 89% | 2913 fps | 98% |
| Winchester 748 | <<locked>> | 88% | 40,495 psi | 85% | 2913 fps | 96% |
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% | 33,170 psi | 69% | 2667 fps | 98.1% |
| Accurate 2460 | <<locked>> | 80% | 35,868 psi | 75% | 2749 fps | 96% |
| Accurate 2495 | <<locked>> | 80% | 25,773 psi | 54% | 2523 fps | 95.7% |
| Accurate 2520 | 29.2 gr | 84% | 36,071 psi | 75% | 2792 fps | 95.7% |
| Accurate 4064 | 28.4 gr | 88% | 31,865 psi | 67% | 2710 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 40,016 psi | 84% | 2874 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 30,429 psi | 64% | 2687 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,174 psi | 80% | 2805 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,640 psi | 85% | 2776 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 39,537 psi | 83% | 2785 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 88% | 39,494 psi | 83% | 2884 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 36,883 psi | 77% | 2802 fps | 97.6% |
| Hodgdon H335 | <<locked>> | 80% | 37,304 psi | 78% | 2808 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,526 psi | 51% | 1706 fps | 100% |
| IMR 3031 | 25.5 gr | 80% | 29,167 psi | 61% | 2651 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 39,523 psi | 83% | 2795 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 38,203 psi | 80% | 2799 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 86% | 34,505 psi | 72% | 2766 fps | 95% |
| Norma 202 | <<locked>> | 84% | 33,982 psi | 71% | 2730 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,642 psi | 51% | 1749 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,535 psi | 76% | 2766 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 39,450 psi | 82% | 2933 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 33,475 psi | 70% | 2674 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,505 psi | 72% | 2766 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,841 psi | 81% | 2815 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 34,113 psi | 71% | 2644 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 31,082 psi | 65% | 2585 fps | 95.8% |
| Somchem S321 | <<locked>> | 84% | 39,450 psi | 82% | 2851 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 31,270 psi | 65% | 2589 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 36,521 psi | 76% | 2710 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 80% | 31,879 psi | 67% | 2608 fps | 97.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,905 psi | 56% | 2546 fps | 96% |
| Vihtavuori N140 | <<locked>> | 84% | 31,995 psi | 67% | 2654 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 98% | 40,437 psi | 84% | 2858 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 86% | 32,953 psi | 69% | 2690 fps | 95.1% |
| Winchester 748 | <<locked>> | 86% | 37,855 psi | 79% | 2851 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 36 powders for 6 x 52 R BB2 loaded with the .243 | 75gr | Remington HP V-Max. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,002 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 36 of the 36 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 75.0 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, Vihtavuori N150 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, Accurate 4064, Accurate 2520 rank at the top here: for 6 x 52 R BB2 with the .243 | 75gr | Remington HP V-Max 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.