Load Specifications
Load data in caliber 5.6 x 50 Mag. with .224 | 55gr | CutEdge MTH bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Hodgdon H335 and Hodgdon H322.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 49,240 psi | 89% | 3084 fps | 99.9% |
| Accurate 1680 | <<locked>> | 84% | 49,240 psi | 89% | 3084 fps | 99.9% |
| Accurate 2015 | <<locked>> | 98% | 49,124 psi | 89% | 3159 fps | 99.6% |
| Accurate 2015 | <<locked>> | 98% | 49,124 psi | 89% | 3159 fps | 99.6% |
| Accurate 2460 | <<locked>> | 94% | 48,298 psi | 88% | 3159 fps | 97.5% |
| Accurate 2460 | <<locked>> | 94% | 48,298 psi | 88% | 3159 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,625 psi | 74% | 3068 fps | 98.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,625 psi | 74% | 3068 fps | 98.9% |
| Accurate 2520 | <<locked>> | 98% | 48,979 psi | 89% | 3205 fps | 97.3% |
| Accurate 2520 | <<locked>> | 98% | 48,979 psi | 89% | 3205 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 90% | 49,864 psi | 90% | 3094 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 90% | 49,864 psi | 90% | 3094 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 88% | 47,427 psi | 86% | 3048 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 88% | 47,427 psi | 86% | 3048 fps | 96.7% |
| ADI AR 2207 | <<locked>> | 88% | 49,298 psi | 89% | 3153 fps | 100% |
| ADI AR 2207 | <<locked>> | 88% | 49,298 psi | 89% | 3153 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 47,718 psi | 87% | 3186 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 90% | 47,718 psi | 87% | 3186 fps | 98.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,269 psi | 89% | 3255 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,269 psi | 89% | 3255 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 46,586 psi | 85% | 3146 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 92% | 46,586 psi | 85% | 3146 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 86% | 48,109 psi | 87% | 3114 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 48,109 psi | 87% | 3114 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 48,646 psi | 88% | 3071 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 48,646 psi | 88% | 3071 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 96% | 49,298 psi | 89% | 3130 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 96% | 49,298 psi | 89% | 3130 fps | 96% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,661 psi | 90% | 3238 fps | 96.3% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,661 psi | 90% | 3238 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 94% | 49,574 psi | 90% | 3219 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 94% | 49,574 psi | 90% | 3219 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 92% | 47,543 psi | 86% | 3173 fps | 97.6% |
| Hodgdon H335 | <<locked>> | 92% | 47,543 psi | 86% | 3173 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 86% | 48,907 psi | 89% | 3100 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 86% | 48,907 psi | 89% | 3100 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,618 psi | 57% | 2011 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,618 psi | 57% | 2011 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,253 psi | 84% | 3222 fps | 99% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,253 psi | 84% | 3222 fps | 99% |
| IMR 4198 | <<locked>> | 92% | 48,704 psi | 88% | 3143 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 48,704 psi | 88% | 3143 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 48,312 psi | 88% | 3071 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 48,312 psi | 88% | 3071 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 48,878 psi | 89% | 3182 fps | 96.9% |
| Lovex D073.4 | <<locked>> | 88% | 48,878 psi | 89% | 3182 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 94% | 48,530 psi | 88% | 3156 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 94% | 48,530 psi | 88% | 3156 fps | 96.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,122 psi | 84% | 3166 fps | 96.7% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,122 psi | 84% | 3166 fps | 96.7% |
| Lovex S053 | <<locked>> | 82% | 47,166 psi | 86% | 3022 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 47,166 psi | 86% | 3022 fps | 100% |
| Norma 200 | <<locked>> | 88% | 46,441 psi | 84% | 3123 fps | 100% |
| Norma 200 | <<locked>> | 88% | 46,441 psi | 84% | 3123 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 47,398 psi | 86% | 3173 fps | 97.6% |
| Norma 202ᴾ | <<locked>> | 100% | 47,398 psi | 86% | 3173 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,502 psi | 57% | 2057 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,502 psi | 57% | 2057 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 48,254 psi | 88% | 3104 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 48,254 psi | 88% | 3104 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 49,139 psi | 89% | 3179 fps | 96.8% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 49,139 psi | 89% | 3179 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 98% | 48,370 psi | 88% | 3163 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 98% | 48,370 psi | 88% | 3163 fps | 97.5% |
| Shooters World AR Plus | <<locked>> | 88% | 48,878 psi | 89% | 3182 fps | 96.9% |
| Shooters World AR Plus | <<locked>> | 88% | 48,878 psi | 89% | 3182 fps | 96.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,122 psi | 84% | 3166 fps | 96.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,122 psi | 84% | 3166 fps | 96.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 48,269 psi | 88% | 2877 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 48,269 psi | 88% | 2877 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 48,486 psi | 88% | 3189 fps | 97.7% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 48,486 psi | 88% | 3189 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 47,964 psi | 87% | 3163 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 47,964 psi | 87% | 3163 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 47,645 psi | 86% | 3077 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 47,645 psi | 86% | 3077 fps | 97.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,959 psi | 74% | 2956 fps | 97.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,959 psi | 74% | 2956 fps | 97.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,559 psi | 90% | 3133 fps | 98.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,559 psi | 90% | 3133 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 88% | 49,371 psi | 90% | 3100 fps | 100% |
| Vihtavuori N120 | <<locked>> | 88% | 49,371 psi | 90% | 3100 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 47,630 psi | 86% | 3094 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 94% | 47,630 psi | 86% | 3094 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 98% | 46,862 psi | 85% | 3084 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 98% | 46,862 psi | 85% | 3084 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,090 psi | 76% | 3084 fps | 99% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,090 psi | 76% | 3084 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,165 psi | 82% | 3094 fps | 97.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,165 psi | 82% | 3094 fps | 97.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,279 psi | 79% | 3068 fps | 96.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,279 psi | 79% | 3068 fps | 96.5% |
| Winchester 748 | <<locked>> | 98% | 47,848 psi | 87% | 3205 fps | 96% |
| Winchester 748 | <<locked>> | 98% | 47,848 psi | 87% | 3205 fps | 96% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,627 psi | 77% | 2963 fps | 99.4% |
| Accurate 1680 | <<locked>> | 80% | 42,627 psi | 77% | 2963 fps | 99.4% |
| Accurate 2015 | <<locked>> | 84% | 31,198 psi | 57% | 2776 fps | 95.7% |
| Accurate 2015 | <<locked>> | 84% | 31,198 psi | 57% | 2776 fps | 95.7% |
| Accurate 2460 | <<locked>> | 88% | 39,015 psi | 71% | 2972 fps | 95.1% |
| Accurate 2460 | <<locked>> | 88% | 39,015 psi | 71% | 2972 fps | 95.1% |
| Accurate 2495 | <<locked>> | 90% | 28,210 psi | 51% | 2759 fps | 95% |
| Accurate 2495 | <<locked>> | 90% | 28,210 psi | 51% | 2759 fps | 95% |
| Accurate 2520 | <<locked>> | 94% | 41,989 psi | 76% | 3074 fps | 95.6% |
| Accurate 2520 | <<locked>> | 94% | 41,989 psi | 76% | 3074 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 36,477 psi | 66% | 2822 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 80% | 36,477 psi | 66% | 2822 fps | 95.9% |
| Accurate LT-32 | <<locked>> | 84% | 41,597 psi | 75% | 2930 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 84% | 41,597 psi | 75% | 2930 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 38,276 psi | 69% | 2953 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 38,276 psi | 69% | 2953 fps | 100% |
| ADI AR 2219 | 23.2 gr | 82% | 36,332 psi | 66% | 2940 fps | 95.6% |
| ADI AR 2219 | 23.2 gr | 82% | 36,332 psi | 66% | 2940 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 25,208 psi | 46% | 2664 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 25,208 psi | 46% | 2664 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,488 psi | 57% | 2808 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,488 psi | 57% | 2808 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,624 psi | 72% | 2946 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,624 psi | 72% | 2946 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,548 psi | 63% | 2782 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,548 psi | 63% | 2782 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,992 psi | 83% | 3064 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,992 psi | 83% | 3064 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 46,079 psi | 84% | 3169 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 98% | 46,079 psi | 84% | 3169 fps | 95.4% |
| Hodgdon H322 | 22.9 gr | 84% | 34,998 psi | 64% | 2907 fps | 95% |
| Hodgdon H322 | 22.9 gr | 84% | 34,998 psi | 64% | 2907 fps | 95% |
| Hodgdon H335 | 25.1 gr | 86% | 38,218 psi | 69% | 2979 fps | 95.1% |
| Hodgdon H335 | 25.1 gr | 86% | 38,218 psi | 69% | 2979 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 40,321 psi | 73% | 2927 fps | 96.3% |
| Hodgdon H4198 | <<locked>> | 80% | 40,321 psi | 73% | 2927 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,308 psi | 42% | 1808 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,308 psi | 42% | 1808 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 33,402 psi | 61% | 2927 fps | 95.4% |
| IMR 3031 | <<locked>> | 90% | 33,402 psi | 61% | 2927 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 33,576 psi | 61% | 2822 fps | 98.4% |
| IMR 4198 | <<locked>> | 80% | 33,576 psi | 61% | 2822 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 45,368 psi | 82% | 3022 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 45,368 psi | 82% | 3022 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 41,974 psi | 76% | 3048 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 84% | 41,974 psi | 76% | 3048 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 92% | 45,005 psi | 82% | 3091 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 92% | 45,005 psi | 82% | 3091 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 98% | 42,685 psi | 77% | 3097 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 98% | 42,685 psi | 77% | 3097 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 44,338 psi | 80% | 2972 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 44,338 psi | 80% | 2972 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,752 psi | 65% | 2904 fps | 98.8% |
| Norma 200 | <<locked>> | 80% | 35,752 psi | 65% | 2904 fps | 98.8% |
| Norma 202 | <<locked>> | 94% | 38,914 psi | 71% | 2999 fps | 95.4% |
| Norma 202 | <<locked>> | 94% | 38,914 psi | 71% | 2999 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,916 psi | 42% | 1841 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,916 psi | 42% | 1841 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,426 psi | 82% | 3054 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,426 psi | 82% | 3054 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 43,018 psi | 78% | 3061 fps | 95.3% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 43,018 psi | 78% | 3061 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 92% | 39,914 psi | 72% | 2989 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 92% | 39,914 psi | 72% | 2989 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 84% | 41,974 psi | 76% | 3048 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 84% | 41,974 psi | 76% | 3048 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 98% | 42,685 psi | 77% | 3097 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 42,685 psi | 77% | 3097 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,162 psi | 75% | 2762 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,162 psi | 75% | 2762 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 39,044 psi | 71% | 2992 fps | 95.2% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 39,044 psi | 71% | 2992 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,358 psi | 59% | 2815 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,358 psi | 59% | 2815 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 39,494 psi | 72% | 2917 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 39,494 psi | 72% | 2917 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 35,781 psi | 65% | 2841 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 35,781 psi | 65% | 2841 fps | 95.5% |
| Somchem S335 | <<locked>> | 90% | 35,940 psi | 65% | 2858 fps | 95.4% |
| Somchem S335 | <<locked>> | 90% | 35,940 psi | 65% | 2858 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 38,421 psi | 70% | 2910 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 38,421 psi | 70% | 2910 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,574 psi | 55% | 2720 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 80% | 30,574 psi | 55% | 2720 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 84% | 30,037 psi | 55% | 2710 fps | 95% |
| Vihtavuori N133 | <<locked>> | 84% | 30,037 psi | 55% | 2710 fps | 95% |
| Vihtavuori N135 | <<locked>> | 90% | 30,182 psi | 55% | 2799 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 90% | 30,182 psi | 55% | 2799 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 94% | 36,695 psi | 67% | 2917 fps | 95% |
| Vihtavuori N140 | <<locked>> | 94% | 36,695 psi | 67% | 2917 fps | 95% |
| Vihtavuori N540 | <<locked>> | 98% | 40,712 psi | 74% | 3015 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 98% | 40,712 psi | 74% | 3015 fps | 95.8% |
| Winchester 748 | <<locked>> | 96% | 44,483 psi | 81% | 3140 fps | 95.1% |
| Winchester 748 | <<locked>> | 96% | 44,483 psi | 81% | 3140 fps | 95.1% |
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 94 powders for 5.6 x 50 Mag. loaded with the .224 | 55gr | CutEdge MTH. Alliant AR-Comp delivers the highest muzzle velocity at 3,255 fps; across all powders the maximum-charge window runs from 2,011 fps to 3,255 fps. Accurate 2495 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 (380 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2495, Alliant AR-Comp 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. ADI AR 2219, Hodgdon H335, Hodgdon H322 rank at the top here: for 5.6 x 50 Mag. with the .224 | 55gr | CutEdge MTH 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.