Load Specifications
Load data in caliber 6 mm B.R. Norma with .243 | 65gr | Berger ND bullet and 47 powders. The key underlying parameters are shown in the table above.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 52,562 psi | 89% | 3205 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,634 psi | 90% | 3294 fps | 99.8% |
| Accurate 2460 | <<locked>> | 96% | 51,401 psi | 88% | 3291 fps | 97.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,683 psi | 69% | 3136 fps | 98.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,822 psi | 88% | 3337 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 92% | 52,895 psi | 90% | 3212 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 90% | 50,299 psi | 86% | 3166 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 90% | 52,605 psi | 90% | 3274 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 51,198 psi | 87% | 3323 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,501 psi | 83% | 3320 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 52,808 psi | 90% | 3327 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,097 psi | 87% | 3228 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 51,300 psi | 87% | 3189 fps | 99.1% |
| Hodgdon Benchmark | <<locked>> | 98% | 51,764 psi | 88% | 3245 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 96% | 52,199 psi | 89% | 3340 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 94% | 50,459 psi | 86% | 3304 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 88% | 51,895 psi | 88% | 3219 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,865 psi | 54% | 2031 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,224 psi | 79% | 3297 fps | 98.8% |
| IMR 4198 | <<locked>> | 94% | 51,242 psi | 87% | 3255 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 51,459 psi | 88% | 3186 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 52,228 psi | 89% | 3314 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 96% | 51,663 psi | 88% | 3287 fps | 96.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 45,426 psi | 77% | 3232 fps | 96.2% |
| Lovex S053 | <<locked>> | 84% | 50,125 psi | 85% | 3130 fps | 100% |
| Norma 200 | <<locked>> | 92% | 53,055 psi | 90% | 3304 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 46,876 psi | 80% | 3235 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,691 psi | 54% | 2077 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 51,619 psi | 88% | 3225 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 52,330 psi | 89% | 3310 fps | 97.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,648 psi | 88% | 3291 fps | 97.9% |
| Shooters World AR Plus | <<locked>> | 90% | 52,228 psi | 89% | 3314 fps | 97.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 45,426 psi | 77% | 3232 fps | 96.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 50,937 psi | 87% | 2969 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 51,459 psi | 88% | 3317 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 50,879 psi | 87% | 3281 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,792 psi | 86% | 3202 fps | 97.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,596 psi | 69% | 3015 fps | 96.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,255 psi | 84% | 3199 fps | 98.4% |
| Vihtavuori N120 | <<locked>> | 90% | 52,678 psi | 90% | 3222 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 50,618 psi | 86% | 3215 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,806 psi | 85% | 3205 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,655 psi | 71% | 3146 fps | 98.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,541 psi | 76% | 3156 fps | 97.1% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 52,649 psi | 90% | 3297 fps | 95.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,337 psi | 74% | 3143 fps | 96.2% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,604 psi | 86% | 3337 fps | 96.3% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,670 psi | 73% | 3022 fps | 99.3% |
| Accurate 2015 | <<locked>> | 84% | 31,444 psi | 54% | 2835 fps | 95.6% |
| Accurate 2460 | <<locked>> | 90% | 41,901 psi | 71% | 3104 fps | 95.7% |
| Accurate 2495 | <<locked>> | 92% | 30,632 psi | 52% | 2887 fps | 95.8% |
| Accurate 2520 | <<locked>> | 94% | 41,916 psi | 71% | 3143 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 36,666 psi | 62% | 2877 fps | 95.7% |
| Accurate LT-32 | <<locked>> | 84% | 41,713 psi | 71% | 2992 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 38,508 psi | 66% | 3012 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 36,129 psi | 62% | 2995 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 25,585 psi | 44% | 2723 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,184 psi | 55% | 2877 fps | 97.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,798 psi | 68% | 3005 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,925 psi | 59% | 2848 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 96% | 48,849 psi | 83% | 3189 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 86% | 37,637 psi | 64% | 3035 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 88% | 40,872 psi | 70% | 3107 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 40,379 psi | 69% | 2986 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,656 psi | 40% | 1824 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 33,620 psi | 57% | 2989 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 34,026 psi | 58% | 2884 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 45,368 psi | 77% | 3077 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 45,092 psi | 77% | 3179 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 94% | 48,051 psi | 82% | 3222 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 98% | 42,598 psi | 73% | 3173 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 44,802 psi | 76% | 3038 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,492 psi | 62% | 2972 fps | 98.8% |
| Norma 202 | <<locked>> | 94% | 38,653 psi | 66% | 3058 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,279 psi | 40% | 1860 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,310 psi | 77% | 3114 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 45,948 psi | 78% | 3189 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 92% | 40,335 psi | 69% | 3058 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 86% | 45,092 psi | 77% | 3179 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 42,598 psi | 73% | 3173 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,220 psi | 70% | 2812 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 39,450 psi | 67% | 3068 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 34,650 psi | 59% | 2930 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 39,653 psi | 68% | 2979 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 35,984 psi | 61% | 2907 fps | 95.2% |
| Somchem S335 | <<locked>> | 90% | 36,027 psi | 61% | 2917 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 38,653 psi | 66% | 2972 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,835 psi | 52% | 2776 fps | 96.3% |
| Vihtavuori N133 | <<locked>> | 86% | 32,489 psi | 55% | 2828 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 90% | 30,472 psi | 52% | 2861 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 96% | 39,102 psi | 67% | 3038 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 98% | 49,443 psi | 84% | 3238 fps | 95% |
| Vihtavuori N540 | <<locked>> | 98% | 40,422 psi | 69% | 3077 fps | 95.3% |
| Winchester 748 | <<locked>> | 98% | 47,210 psi | 80% | 3268 fps | 95.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 72 powders for 6 mm B.R. Norma loaded with the .243 | 65gr | Berger ND. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,409 fps; across all powders the maximum-charge window runs from 2,031 fps to 3,409 fps. Accurate 2015 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 65.0 gr projectile in 0.243" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H 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.