Load Specifications
Load data in caliber .20 BR with .204 | 45gr | Hornady SP bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 52,562 psi | 89% | 3383 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,676 psi | 86% | 3383 fps | 99.9% |
| Accurate 2495 | <<locked>> | 90% | 50,633 psi | 86% | 3383 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 52,576 psi | 90% | 3445 fps | 99.9% |
| Accurate 4064 | <<locked>> | 92% | 50,386 psi | 86% | 3419 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,067 psi | 85% | 3451 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 88% | 51,967 psi | 88% | 3455 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 94% | 52,779 psi | 90% | 3442 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,894 psi | 87% | 3409 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 86% | 50,647 psi | 86% | 3415 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,953 psi | 88% | 3533 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 51,605 psi | 88% | 3556 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,228 psi | 89% | 3465 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,605 psi | 88% | 3396 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,632 psi | 84% | 3425 fps | 97.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,139 psi | 84% | 3465 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,719 psi | 85% | 3507 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,895 psi | 88% | 3451 fps | 97.3% |
| Bofors RP3 | <<locked>> | 94% | 53,142 psi | 90% | 3484 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 53,026 psi | 90% | 3406 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,777 psi | 85% | 3422 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,213 psi | 87% | 3520 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 82% | 50,850 psi | 87% | 3422 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,257 psi | 89% | 3438 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 50,618 psi | 86% | 3415 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 88% | 52,417 psi | 89% | 3471 fps | 98.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,802 psi | 76% | 3317 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 51,068 psi | 87% | 3484 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,345 psi | 58% | 2260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,430 psi | 86% | 3412 fps | 98.3% |
| IMR 3031 | <<locked>> | 88% | 51,401 psi | 88% | 3474 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 52,301 psi | 89% | 3428 fps | 97.9% |
| IMR 4198 | <<locked>> | 82% | 52,040 psi | 89% | 3369 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,601 psi | 81% | 3383 fps | 96.3% |
| IMR 4895 | <<locked>> | 90% | 50,865 psi | 87% | 3465 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 86% | 50,894 psi | 87% | 3409 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 82% | 50,589 psi | 86% | 3379 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 88% | 50,778 psi | 86% | 3422 fps | 99.8% |
| Lovex S060 | <<locked>> | 88% | 51,924 psi | 88% | 3383 fps | 98.2% |
| Lovex S062 | <<locked>> | 92% | 52,127 psi | 89% | 3435 fps | 99.2% |
| Norma 201 | <<locked>> | 88% | 50,357 psi | 86% | 3396 fps | 98.9% |
| Norma 202 | <<locked>> | 88% | 50,923 psi | 87% | 3412 fps | 100% |
| Norma 203B | <<locked>> | 92% | 52,417 psi | 89% | 3478 fps | 98.4% |
| Norma URPᴾ | <<locked>> | 100% | 49,850 psi | 85% | 3451 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 90% | 49,603 psi | 84% | 3432 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,546 psi | 86% | 3422 fps | 97.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,112 psi | 89% | 3396 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,563 psi | 59% | 2310 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,227 psi | 86% | 3396 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 53,084 psi | 90% | 3560 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 53,069 psi | 90% | 3593 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,140 psi | 85% | 3471 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 86% | 51,459 psi | 88% | 3406 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 90% | 51,184 psi | 87% | 3399 fps | 99% |
| Rottweil R 903 | <<locked>> | 96% | 52,968 psi | 90% | 3468 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,778 psi | 86% | 3422 fps | 99.8% |
| Shooters World Precision | <<locked>> | 92% | 52,127 psi | 89% | 3435 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,952 psi | 87% | 3465 fps | 98.1% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,533 psi | 89% | 3422 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,314 psi | 86% | 3409 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,373 psi | 89% | 3360 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,620 psi | 90% | 3346 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 51,967 psi | 88% | 3435 fps | 99.3% |
| Somchem S335 | <<locked>> | 88% | 51,517 psi | 88% | 3346 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,982 psi | 90% | 3432 fps | 98.3% |
| Somchem S355 | <<locked>> | 94% | 50,096 psi | 85% | 3409 fps | 98.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,092 psi | 75% | 3376 fps | 98.6% |
| Vihtavuori N130 | <<locked>> | 84% | 51,750 psi | 88% | 3333 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 52,373 psi | 89% | 3350 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,966 psi | 85% | 3379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 51,459 psi | 88% | 3386 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 51,677 psi | 88% | 3396 fps | 99.5% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,214 psi | 89% | 3448 fps | 97% |
| Vihtavuori N530 | <<locked>> | 86% | 51,300 psi | 87% | 3406 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 90% | 50,198 psi | 85% | 3376 fps | 99.9% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,430 psi | 88% | 3445 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,169 psi | 85% | 3366 fps | 98.7% |
| Winchester 748 | <<locked>> | 86% | 50,647 psi | 86% | 3451 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,850 psi | 85% | 3412 fps | 98.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 43,294 psi | 74% | 3219 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,282 psi | 80% | 3317 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 35,636 psi | 61% | 3081 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 42,786 psi | 73% | 3255 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 33,634 psi | 57% | 3045 fps | 97.5% |
| Accurate 4350 | <<locked>> | 98% | 46,876 psi | 80% | 3389 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 39,697 psi | 68% | 3189 fps | 95% |
| ADI AR 2208 | <<locked>> | 88% | 43,700 psi | 74% | 3255 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,713 psi | 71% | 3215 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 41,118 psi | 70% | 3245 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,341 psi | 82% | 3461 fps | 97.9% |
| Alliant Power Pro 2000-MR | 30.2 gr | 86% | 44,324 psi | 75% | 3392 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,782 psi | 64% | 3153 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,515 psi | 83% | 3343 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,598 psi | 74% | 3294 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 45,818 psi | 78% | 3392 fps | 95.7% |
| Alliant Reloder-17 | 31.2 gr | 90% | 40,640 psi | 69% | 3294 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 44,715 psi | 76% | 3307 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 37,231 psi | 63% | 3143 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,671 psi | 74% | 3222 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,248 psi | 69% | 3219 fps | 97.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,324 psi | 75% | 3373 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 80% | 47,776 psi | 81% | 3366 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,733 psi | 83% | 3376 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 47,601 psi | 81% | 3356 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 40,030 psi | 68% | 3205 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 39,581 psi | 67% | 3196 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 38,827 psi | 66% | 3219 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,512 psi | 43% | 2037 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,450 psi | 65% | 3146 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 38,856 psi | 66% | 3225 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 43,192 psi | 74% | 3241 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 48,921 psi | 83% | 3317 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 44,251 psi | 75% | 3310 fps | 95.3% |
| IMR 4895 | <<locked>> | 84% | 41,582 psi | 71% | 3268 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 41,713 psi | 71% | 3215 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 80% | 47,166 psi | 80% | 3317 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 38,363 psi | 65% | 3163 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 40,263 psi | 69% | 3136 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 35,172 psi | 60% | 3058 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,812 psi | 66% | 3143 fps | 96.3% |
| Norma 202 | <<locked>> | 80% | 39,102 psi | 67% | 3169 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 39,943 psi | 68% | 3212 fps | 95.2% |
| Norma URP | <<locked>> | 98% | 46,311 psi | 79% | 3379 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 86% | 42,656 psi | 73% | 3284 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,075 psi | 70% | 3219 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,571 psi | 78% | 3268 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,788 psi | 44% | 2087 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,862 psi | 80% | 3330 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,395 psi | 72% | 3337 fps | 95.2% |
| ReloadSwiss RS 60 | 28.4 gr | 82% | 32,779 psi | 56% | 3084 fps | 95.1% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 46,557 psi | 79% | 3399 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 42,670 psi | 73% | 3225 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 37,115 psi | 63% | 3087 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 86% | 37,492 psi | 64% | 3143 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,363 psi | 65% | 3163 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 35,172 psi | 60% | 3058 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,655 psi | 71% | 3268 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,371 psi | 84% | 3366 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,307 psi | 70% | 3215 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,480 psi | 69% | 3123 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,344 psi | 57% | 2949 fps | 98.1% |
| Somchem S321 | <<locked>> | 80% | 45,223 psi | 77% | 3304 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 39,900 psi | 68% | 3117 fps | 99.3% |
| Somchem S341 | <<locked>> | 80% | 39,653 psi | 68% | 3156 fps | 95% |
| Somchem S355 | <<locked>> | 86% | 38,493 psi | 66% | 3156 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 36,260 psi | 62% | 3176 fps | 96.1% |
| Vihtavuori N130 | <<locked>> | 80% | 45,847 psi | 78% | 3232 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,611 psi | 69% | 3133 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 35,926 psi | 61% | 3091 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 36,825 psi | 63% | 3084 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 84% | 34,171 psi | 58% | 3015 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 96% | 45,614 psi | 78% | 3320 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 41,800 psi | 71% | 3209 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,737 psi | 61% | 3061 fps | 97.7% |
| Vihtavuori N550 | <<locked>> | 96% | 45,049 psi | 77% | 3320 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 38,189 psi | 65% | 3100 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 40,828 psi | 70% | 3245 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,942 psi | 65% | 3146 fps | 95.2% |
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 79 powders for .20 BR loaded with the .204 | 45gr | Hornady SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,593 fps; across all powders the maximum-charge window runs from 2,260 fps to 3,593 fps. Accurate 4350 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 45.0 gr projectile in 0.204" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .20 BR with the .204 | 45gr | Hornady SP 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.