Load Specifications
Load data in caliber .20 Nosler with .204 | 55gr | Berger Varmint bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 70.
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 2495 | <<locked>> | 86% | 48,153 psi | 87% | 3146 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 48,660 psi | 88% | 3196 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 48,109 psi | 87% | 3248 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 84% | 49,153 psi | 89% | 3215 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 88% | 47,413 psi | 86% | 3163 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,457 psi | 88% | 3176 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 82% | 48,414 psi | 88% | 3166 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,617 psi | 88% | 3323 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 46,804 psi | 85% | 3182 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,195 psi | 86% | 3196 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,763 psi | 90% | 3317 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 47,123 psi | 86% | 3291 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,985 psi | 69% | 3058 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,921 psi | 89% | 3222 fps | 97.9% |
| Bofors RP3 | <<locked>> | 88% | 47,123 psi | 86% | 3192 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,384 psi | 86% | 3192 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 88% | 48,138 psi | 87% | 3199 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 49,588 psi | 90% | 3232 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,095 psi | 89% | 3241 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,805 psi | 89% | 3261 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 64% | 2080 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,587 psi | 86% | 3173 fps | 98.9% |
| IMR 3031 | <<locked>> | 84% | 49,226 psi | 89% | 3232 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 46,485 psi | 84% | 3136 fps | 97.9% |
| IMR 4831 | <<locked>> | 98% | 48,747 psi | 88% | 3245 fps | 97.8% |
| IMR 4895 | <<locked>> | 86% | 48,356 psi | 88% | 3235 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 82% | 48,457 psi | 88% | 3176 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 84% | 48,341 psi | 88% | 3192 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,211 psi | 89% | 3150 fps | 98.8% |
| Lovex S062 | <<locked>> | 88% | 49,414 psi | 90% | 3199 fps | 99.6% |
| Lovex S065 | <<locked>> | 94% | 49,153 psi | 89% | 3186 fps | 96.4% |
| Norma 201 | <<locked>> | 84% | 47,993 psi | 87% | 3163 fps | 99.4% |
| Norma 202 | <<locked>> | 84% | 48,631 psi | 88% | 3179 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,835 psi | 90% | 3251 fps | 98.9% |
| Norma URP | <<locked>> | 96% | 47,297 psi | 86% | 3235 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 86% | 46,992 psi | 85% | 3209 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 98% | 49,603 psi | 90% | 3281 fps | 96.1% |
| Ramshot TAC | <<locked>> | 82% | 48,370 psi | 88% | 3166 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 48,051 psi | 87% | 3196 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,360 psi | 64% | 2129 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 47,137 psi | 86% | 3261 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 47,239 psi | 86% | 3307 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 47,427 psi | 86% | 3258 fps | 97.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 47,921 psi | 87% | 3284 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 82% | 48,892 psi | 89% | 3159 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,820 psi | 89% | 3169 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 90% | 46,949 psi | 85% | 3182 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 49,153 psi | 89% | 3186 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,341 psi | 88% | 3192 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,414 psi | 90% | 3199 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,747 psi | 88% | 3248 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 46,789 psi | 85% | 3140 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,747 psi | 87% | 3182 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,342 psi | 90% | 3114 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 46,934 psi | 85% | 3064 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 48,994 psi | 89% | 3110 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 46,499 psi | 84% | 3140 fps | 98.2% |
| Somchem S355 | <<locked>> | 90% | 47,688 psi | 87% | 3186 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,675 psi | 88% | 3307 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 84% | 49,574 psi | 90% | 3107 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 47,790 psi | 87% | 3140 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,733 psi | 88% | 3150 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,124 psi | 89% | 3173 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 94% | 46,441 psi | 84% | 3176 fps | 97% |
| Vihtavuori N530 | <<locked>> | 82% | 48,747 psi | 88% | 3173 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 86% | 47,616 psi | 86% | 3146 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,820 psi | 89% | 3235 fps | 97.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,944 psi | 74% | 3143 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 46,978 psi | 85% | 3153 fps | 99% |
| Winchester 748 | <<locked>> | 82% | 48,167 psi | 87% | 3215 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,456 psi | 86% | 3186 fps | 98.9% |
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 2495 | <<locked>> | 80% | 39,813 psi | 72% | 2986 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,579 psi | 68% | 2966 fps | 99.4% |
| Accurate 4350 | <<locked>> | 92% | 41,640 psi | 76% | 3114 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 43,178 psi | 78% | 3091 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 39,204 psi | 71% | 2976 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,194 psi | 82% | 3107 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 45,324 psi | 82% | 3114 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,291 psi | 71% | 3100 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,230 psi | 66% | 2936 fps | 96.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,899 psi | 71% | 3005 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 41,162 psi | 75% | 3120 fps | 95.9% |
| Alliant Reloder-17 | 28.3 gr | 84% | 35,853 psi | 65% | 3009 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 35,433 psi | 64% | 2986 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,598 psi | 77% | 3091 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 35,839 psi | 65% | 2936 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,135 psi | 80% | 3127 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 84% | 42,134 psi | 76% | 3068 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,526 psi | 79% | 3104 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 35,520 psi | 64% | 2936 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,711 psi | 72% | 3064 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 48% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,698 psi | 76% | 3048 fps | 97.7% |
| IMR 3031 | <<locked>> | 80% | 43,250 psi | 78% | 3117 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,696 psi | 70% | 2959 fps | 95.8% |
| IMR 4831 | <<locked>> | 92% | 39,943 psi | 72% | 3054 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,842 psi | 72% | 3045 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,194 psi | 82% | 3107 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 42,279 psi | 77% | 3071 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 43,308 psi | 79% | 3028 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 38,348 psi | 70% | 2963 fps | 97.7% |
| Lovex S065 | <<locked>> | 92% | 45,861 psi | 83% | 3120 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 42,525 psi | 77% | 3048 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 42,598 psi | 77% | 3061 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 38,290 psi | 69% | 2995 fps | 96.3% |
| Norma URP | <<locked>> | 92% | 41,727 psi | 76% | 3114 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,942 psi | 69% | 3002 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 96% | 46,673 psi | 85% | 3222 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 45,237 psi | 82% | 3100 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,831 psi | 81% | 3130 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,266 psi | 48% | 1906 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,959 psi | 74% | 3123 fps | 96.4% |
| ReloadSwiss RS 60 | 27 gr | 80% | 33,475 psi | 61% | 2956 fps | 97.4% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 41,379 psi | 75% | 3127 fps | 95.5% |
| ReloadSwiss RS 70 | 32.2 gr | 94% | 44,657 psi | 81% | 3209 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 46,050 psi | 84% | 3104 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 40,292 psi | 73% | 2989 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,547 psi | 61% | 2864 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,861 psi | 83% | 3120 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,279 psi | 77% | 3071 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 38,348 psi | 70% | 2963 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 37,043 psi | 67% | 2986 fps | 95.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,584 psi | 79% | 3071 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,003 psi | 76% | 3058 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,584 psi | 79% | 3002 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,187 psi | 66% | 2841 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 43,555 psi | 79% | 3009 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,352 psi | 79% | 3071 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 34,751 psi | 63% | 2887 fps | 95.6% |
| Somchem S365 | <<locked>> | 86% | 30,443 psi | 55% | 2848 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 43,859 psi | 80% | 3002 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,465 psi | 72% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,132 psi | 73% | 2979 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 32,750 psi | 59% | 2808 fps | 96.4% |
| Vihtavuori N160 | <<locked>> | 90% | 40,596 psi | 74% | 3048 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,382 psi | 82% | 3104 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 39,001 psi | 71% | 2966 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 90% | 40,292 psi | 73% | 3051 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 38,377 psi | 70% | 3081 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 33,736 psi | 61% | 2838 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 44,817 psi | 81% | 3150 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,176 psi | 75% | 3051 fps | 97.7% |
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 71 powders for .20 Nosler loaded with the .204 | 55gr | Berger Varmint. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,323 fps; across all powders the maximum-charge window runs from 2,080 fps to 3,323 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.204" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon Hybrid 100V, 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 70 rank at the top here: for .20 Nosler with the .204 | 55gr | Berger Varmint 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.