Load Specifications
Load data in caliber .220 Swift with .224 | 69gr | Lapua ScenarL bullet and 94 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 Alliant Power Pro 2000-MR.
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% | 56,231 psi | 90% | 3251 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,708 psi | 88% | 3274 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,984 psi | 88% | 3274 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,287 psi | 85% | 3287 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 55,056 psi | 88% | 3327 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,389 psi | 87% | 3392 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 88% | 55,666 psi | 89% | 3356 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 92% | 53,316 psi | 85% | 3291 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,650 psi | 88% | 3304 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 55,158 psi | 88% | 3287 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,188 psi | 90% | 3422 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,100 psi | 88% | 3478 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,376 psi | 90% | 3376 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,782 psi | 89% | 3258 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,838 psi | 86% | 3343 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,402 psi | 84% | 3396 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,679 psi | 86% | 3445 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,463 psi | 60% | 3061 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,593 psi | 89% | 3369 fps | 98.8% |
| Bofors RP3 | <<locked>> | 92% | 53,417 psi | 86% | 3330 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,040 psi | 85% | 3228 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,998 psi | 87% | 3333 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,014 psi | 90% | 3445 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 82% | 55,158 psi | 88% | 3304 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,246 psi | 90% | 3330 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,607 psi | 88% | 3340 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 98% | 54,157 psi | 87% | 3389 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 56,260 psi | 90% | 3369 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,834 psi | 78% | 3261 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,434 psi | 89% | 3402 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 57% | 2067 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,114 psi | 87% | 3314 fps | 99.5% |
| IMR 3031 | <<locked>> | 88% | 55,782 psi | 89% | 3356 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,173 psi | 90% | 3337 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,318 psi | 90% | 3307 fps | 96.3% |
| IMR 4198 | <<locked>> | 82% | 56,159 psi | 90% | 3219 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,680 psi | 89% | 3323 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,663 psi | 83% | 3323 fps | 98.2% |
| IMR 4895 | <<locked>> | 90% | 55,216 psi | 89% | 3379 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 86% | 54,650 psi | 88% | 3304 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 54,998 psi | 88% | 3291 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,216 psi | 89% | 3330 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,056 psi | 88% | 3271 fps | 99.4% |
| Lovex S062 | <<locked>> | 92% | 55,970 psi | 90% | 3333 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 54,853 psi | 88% | 3314 fps | 97.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,825 psi | 90% | 3353 fps | 96.5% |
| Norma 201 | <<locked>> | 88% | 54,157 psi | 87% | 3291 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 54,737 psi | 88% | 3301 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,159 psi | 90% | 3383 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 53,563 psi | 86% | 3379 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 90% | 53,142 psi | 85% | 3346 fps | 99.1% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,576 psi | 84% | 3366 fps | 96.5% |
| Ramshot TAC | <<locked>> | 86% | 55,013 psi | 88% | 3310 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,578 psi | 88% | 3340 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,564 psi | 89% | 3301 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 57% | 2110 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,230 psi | 87% | 3287 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,187 psi | 88% | 3320 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,911 psi | 86% | 3412 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,519 psi | 86% | 3455 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,273 psi | 87% | 3419 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,476 psi | 87% | 3448 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 86% | 55,158 psi | 88% | 3281 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,795 psi | 88% | 3294 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 53,272 psi | 85% | 3320 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,853 psi | 88% | 3314 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,216 psi | 89% | 3330 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,970 psi | 90% | 3333 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,825 psi | 90% | 3353 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,187 psi | 88% | 3392 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,229 psi | 85% | 3281 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,041 psi | 87% | 3320 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,883 psi | 90% | 3235 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,985 psi | 90% | 3232 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,463 psi | 89% | 3261 fps | 96.1% |
| Somchem S321 | <<locked>> | 84% | 55,985 psi | 90% | 3340 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,143 psi | 88% | 3228 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,779 psi | 85% | 3274 fps | 99.1% |
| Somchem S355 | <<locked>> | 94% | 53,708 psi | 86% | 3320 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,921 psi | 77% | 3317 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 84% | 55,448 psi | 89% | 3199 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,014 psi | 90% | 3222 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,520 psi | 87% | 3264 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,492 psi | 89% | 3281 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,419 psi | 89% | 3304 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,159 psi | 90% | 3379 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 86% | 55,347 psi | 89% | 3307 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 53,548 psi | 86% | 3268 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,477 psi | 89% | 3386 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,683 psi | 65% | 3159 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,592 psi | 86% | 3304 fps | 99.7% |
| Winchester 748 | <<locked>> | 86% | 55,143 psi | 88% | 3360 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,157 psi | 87% | 3389 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,722 psi | 86% | 3327 fps | 99.6% |
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% | 46,789 psi | 75% | 3091 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,256 psi | 82% | 3215 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,552 psi | 63% | 2986 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,601 psi | 75% | 3163 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 37,376 psi | 60% | 2966 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 41,104 psi | 66% | 3117 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 43,265 psi | 69% | 3100 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 39,044 psi | 63% | 2979 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,310 psi | 73% | 3120 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 45,353 psi | 73% | 3123 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,968 psi | 85% | 3363 fps | 99.5% |
| Alliant Power Pro 2000-MR | 33.1 gr | 80% | 39,160 psi | 63% | 3107 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,303 psi | 58% | 2943 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,605 psi | 84% | 3202 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,015 psi | 63% | 3018 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 40,944 psi | 66% | 3130 fps | 95.5% |
| Alliant Reloder-17 | 34.2 gr | 84% | 35,694 psi | 57% | 3015 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 35,114 psi | 56% | 2992 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,221 psi | 68% | 3091 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 35,708 psi | 57% | 2940 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,021 psi | 75% | 3114 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,961 psi | 70% | 3133 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,530 psi | 78% | 3301 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 80% | 51,547 psi | 83% | 3241 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,707 psi | 85% | 3271 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 41,814 psi | 67% | 3074 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 96% | 50,691 psi | 81% | 3323 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 43,671 psi | 70% | 3117 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 35,288 psi | 57% | 2943 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,610 psi | 64% | 3074 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 42% | 1847 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,916 psi | 67% | 3058 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 42,946 psi | 69% | 3120 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,667 psi | 62% | 2963 fps | 95.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 52,852 psi | 85% | 3241 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 52,924 psi | 85% | 3169 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,634 psi | 84% | 3264 fps | 95.4% |
| IMR 4831 | <<locked>> | 92% | 39,653 psi | 64% | 3061 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 39,929 psi | 64% | 3054 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 80% | 45,310 psi | 73% | 3120 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 51,053 psi | 82% | 3222 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 42,090 psi | 67% | 3077 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 43,221 psi | 69% | 3031 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 38,319 psi | 61% | 2966 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 45,934 psi | 74% | 3136 fps | 95.3% |
| Lovex S070 | <<locked>> | 96% | 49,400 psi | 79% | 3228 fps | 95% |
| Norma 201 | <<locked>> | 80% | 42,322 psi | 68% | 3051 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 42,670 psi | 68% | 3068 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 38,435 psi | 62% | 3002 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 41,133 psi | 66% | 3114 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 37,811 psi | 61% | 3009 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 98% | 49,226 psi | 79% | 3301 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 45,194 psi | 72% | 3114 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,585 psi | 71% | 3136 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,979 psi | 79% | 3176 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 43% | 1893 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,792 psi | 81% | 3222 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,138 psi | 77% | 3182 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,698 psi | 65% | 3130 fps | 96.1% |
| ReloadSwiss RS 60 | 32.6 gr | 80% | 33,301 psi | 53% | 2959 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,828 psi | 65% | 3136 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 44,251 psi | 71% | 3222 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,137 psi | 74% | 3110 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 40,422 psi | 65% | 2995 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 33,547 psi | 54% | 2871 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,934 psi | 74% | 3136 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,090 psi | 67% | 3077 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 38,319 psi | 61% | 2966 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 96% | 49,400 psi | 79% | 3228 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 37,043 psi | 59% | 2995 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,279 psi | 69% | 3077 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,742 psi | 67% | 3061 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,743 psi | 70% | 3012 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,303 psi | 58% | 2848 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,185 psi | 84% | 3202 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 48,762 psi | 78% | 3205 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 43,294 psi | 69% | 3012 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,004 psi | 69% | 3077 fps | 97.3% |
| Somchem S355 | <<locked>> | 80% | 34,577 psi | 55% | 2884 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 32,401 psi | 52% | 2923 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 49,443 psi | 79% | 3097 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,019 psi | 71% | 3012 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,595 psi | 63% | 2986 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,132 psi | 64% | 2986 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 32,721 psi | 52% | 2812 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 90% | 40,669 psi | 65% | 3064 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 45,252 psi | 73% | 3114 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 38,667 psi | 62% | 2966 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 42,540 psi | 68% | 3123 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 98% | 37,884 psi | 61% | 3087 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 35,549 psi | 57% | 2904 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 44,701 psi | 72% | 3159 fps | 99.4% |
| Winchester 760 | <<locked>> | 96% | 50,691 psi | 81% | 3323 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,220 psi | 66% | 3068 fps | 97.6% |
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 94 powders for .220 Swift loaded with the .224 | 69gr | Lapua ScenarL. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,478 fps; across all powders the maximum-charge window runs from 2,067 fps to 3,478 fps. Accurate 4350 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 69.0 gr projectile in 0.224" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Power Pro 2000-MR rank at the top here: for .220 Swift with the .224 | 69gr | Lapua ScenarL 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.