Load Specifications
Load data in caliber 7-.300 Norma Mag. with .284 | 128gr | IBEX TRD bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Accurate High Country.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 54,839 psi | 86% | 3248 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 55,361 psi | 87% | 3281 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 55,811 psi | 87% | 3402 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 90% | 56,956 psi | 89% | 3409 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 88% | 55,579 psi | 87% | 3333 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 92% | 57,450 psi | 90% | 3406 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 3360 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 50,459 psi | 79% | 3323 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,869 psi | 88% | 3330 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,593 psi | 87% | 3333 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 55,216 psi | 87% | 3320 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 90% | 54,273 psi | 85% | 3340 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 55,738 psi | 87% | 3310 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 55,361 psi | 87% | 3379 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 56,362 psi | 88% | 3409 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,911 psi | 86% | 3284 fps | 96.1% |
| Bofors RP15 | <<locked>> | 94% | 57,174 psi | 90% | 3389 fps | 99.5% |
| Bofors RP30 | <<locked>> | 98% | 55,347 psi | 87% | 3379 fps | 99.1% |
| Bofors RP5 | <<locked>> | 90% | 54,273 psi | 85% | 3340 fps | 99.3% |
| Bofors RP7 | <<locked>> | 82% | 56,666 psi | 89% | 3274 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 57,334 psi | 90% | 3392 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 82% | 56,347 psi | 88% | 3330 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 57,029 psi | 89% | 3333 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 56,014 psi | 88% | 3314 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 56,188 psi | 88% | 3251 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 54,143 psi | 85% | 3458 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 82% | 56,913 psi | 89% | 3366 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,449 psi | 59% | 2142 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,940 psi | 86% | 3258 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,566 psi | 90% | 3291 fps | 99.9% |
| IMR 4831 | <<locked>> | 84% | 55,463 psi | 87% | 3268 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,740 psi | 90% | 3314 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 92% | 55,463 psi | 87% | 3379 fps | 98.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,195 psi | 72% | 3222 fps | 97.3% |
| Lovex S065 | <<locked>> | 82% | 55,434 psi | 87% | 3238 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 57,377 psi | 90% | 3294 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 56,304 psi | 88% | 3271 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,898 psi | 88% | 3314 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 46,543 psi | 73% | 3251 fps | 99.2% |
| Norma MRP | <<locked>> | 88% | 54,085 psi | 85% | 3360 fps | 99.9% |
| Norma URP | <<locked>> | 84% | 56,971 psi | 89% | 3317 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 56,449 psi | 88% | 3402 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 55,796 psi | 87% | 3317 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 55,259 psi | 87% | 3330 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,406 psi | 60% | 2192 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 55,259 psi | 87% | 3297 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 57,087 psi | 89% | 3386 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 55,042 psi | 86% | 3448 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 54,621 psi | 86% | 3396 fps | 98% |
| Rottweil R 904 | <<locked>> | 88% | 56,478 psi | 89% | 3297 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 88% | 54,955 psi | 86% | 3314 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 82% | 56,666 psi | 89% | 3274 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,434 psi | 87% | 3238 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 57,377 psi | 90% | 3294 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 54,607 psi | 86% | 3186 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 54,534 psi | 85% | 3307 fps | 99.3% |
| Somchem S361 | <<locked>> | 86% | 54,592 psi | 86% | 3222 fps | 98% |
| Somchem S365 | <<locked>> | 84% | 54,389 psi | 85% | 3264 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 55,767 psi | 87% | 3284 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 82% | 54,882 psi | 86% | 3245 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 55,288 psi | 87% | 3261 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 82% | 54,389 psi | 85% | 3251 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 54,592 psi | 86% | 3294 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 57,522 psi | 90% | 3422 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 94% | 54,505 psi | 85% | 3337 fps | 98.4% |
| Vihtavuori N568 | <<locked>> | 98% | 55,288 psi | 87% | 3399 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 54,172 psi | 85% | 3189 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 56,550 psi | 89% | 3333 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 92% | 54,505 psi | 85% | 3406 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 55,288 psi | 87% | 3271 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 39,581 psi | 62% | 2946 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 51,808 psi | 81% | 3222 fps | 100% |
| Accurate High Country | 74.1 gr | 80% | 42,496 psi | 67% | 3127 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 84% | 46,238 psi | 72% | 3192 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 42,699 psi | 67% | 3071 fps | 97% |
| ADI AR 2213 | <<locked>> | 82% | 41,089 psi | 64% | 3061 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 39,972 psi | 63% | 3022 fps | 95% |
| ADI AR 2225 | <<locked>> | 86% | 32,271 psi | 51% | 2858 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,207 psi | 68% | 3074 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,965 psi | 77% | 3219 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,830 psi | 67% | 3068 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,001 psi | 61% | 3009 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,724 psi | 59% | 2969 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,808 psi | 51% | 2871 fps | 97.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,105 psi | 66% | 3136 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 51,793 psi | 81% | 3222 fps | 95.2% |
| Bofors RP15 | <<locked>> | 82% | 38,798 psi | 61% | 3002 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 39,682 psi | 62% | 3051 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 39,001 psi | 61% | 3009 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 53,185 psi | 83% | 3212 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 86% | 38,261 psi | 60% | 2982 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 52,808 psi | 83% | 3268 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 82% | 43,787 psi | 69% | 3068 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 82% | 42,989 psi | 67% | 3048 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,369 psi | 73% | 3084 fps | 100% |
| Hodgdon Retumbo | 75 gr | 84% | 36,535 psi | 57% | 3031 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 53,127 psi | 83% | 3301 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 44% | 1919 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,414 psi | 76% | 3133 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,273 psi | 85% | 3235 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 48,936 psi | 77% | 3153 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,264 psi | 66% | 2999 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 84% | 42,467 psi | 67% | 3107 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 96% | 40,480 psi | 63% | 3087 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 52,272 psi | 82% | 3182 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,807 psi | 80% | 3179 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 34,418 psi | 54% | 2812 fps | 97% |
| Norma 204 | <<locked>> | 80% | 49,066 psi | 77% | 3186 fps | 98.3% |
| Norma 217 | <<locked>> | 90% | 33,533 psi | 53% | 2920 fps | 95% |
| Norma MRP | <<locked>> | 80% | 41,031 psi | 64% | 3087 fps | 98% |
| Norma URP | <<locked>> | 80% | 50,198 psi | 79% | 3199 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 39,523 psi | 62% | 3045 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 49,066 psi | 77% | 3196 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 35,694 psi | 56% | 2913 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,863 psi | 45% | 1965 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 51,619 psi | 81% | 3238 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,661 psi | 78% | 3258 fps | 100% |
| ReloadSwiss RS 76 | 78.3 gr | 82% | 33,533 psi | 53% | 2930 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 43,656 psi | 68% | 3169 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 43,918 psi | 69% | 3045 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 80% | 42,453 psi | 67% | 3054 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 80% | 53,185 psi | 83% | 3212 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,272 psi | 82% | 3182 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,807 psi | 80% | 3179 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,198 psi | 80% | 3123 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,105 psi | 66% | 3051 fps | 97% |
| Somchem S361 | <<locked>> | 80% | 45,005 psi | 71% | 3035 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 47,543 psi | 75% | 3146 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,163 psi | 68% | 3038 fps | 98% |
| Vihtavuori N160 | <<locked>> | 80% | 51,416 psi | 81% | 3186 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,521 psi | 59% | 2894 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 51,024 psi | 80% | 3192 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,279 psi | 66% | 3058 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 43,888 psi | 69% | 3143 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 86% | 41,829 psi | 66% | 3071 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 94% | 47,950 psi | 75% | 3255 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,604 psi | 79% | 3130 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,011 psi | 83% | 3271 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 34,563 psi | 54% | 3009 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,581 psi | 62% | 2949 fps | 96.1% |
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 70 powders for 7-.300 Norma Mag. loaded with the .284 | 128gr | IBEX TRD. Hodgdon Retumbo delivers the highest muzzle velocity at 3,458 fps; across all powders the maximum-charge window runs from 2,142 fps to 3,458 fps. ADI AR 2217 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 (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 128.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Hodgdon Retumbo, ReloadSwiss RS 76, Accurate High Country rank at the top here: for 7-.300 Norma Mag. with the .284 | 128gr | IBEX TRD 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.