Load Specifications
Load data in caliber 9.3 x 66 Sako with .365 | 293gr | Peregrine VRG-2 bullet and 95 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, Hodgdon CFE223 and ReloadSwiss RS 52.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 90% | 53,751 psi | 89% | 2267 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 54,259 psi | 90% | 2349 fps | 99.4% |
| Accurate 2460 | <<locked>> | 86% | 51,895 psi | 86% | 2287 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 53,258 psi | 88% | 2313 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 53,301 psi | 89% | 2339 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 53,113 psi | 88% | 2349 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,047 psi | 70% | 2267 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 84% | 54,201 psi | 90% | 2221 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 51,474 psi | 86% | 2205 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 52,634 psi | 87% | 2346 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 98% | 53,519 psi | 89% | 2339 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 84% | 54,331 psi | 90% | 2323 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 52,069 psi | 87% | 2306 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 51,416 psi | 85% | 2290 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 53,577 psi | 89% | 2395 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 51,996 psi | 86% | 2438 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 52,475 psi | 87% | 2359 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 53,911 psi | 90% | 2270 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 53,287 psi | 89% | 2372 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,192 psi | 72% | 2280 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,313 psi | 82% | 2405 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 53,200 psi | 88% | 2228 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 52,214 psi | 87% | 2359 fps | 99% |
| Bofors RP3 | <<locked>> | 98% | 52,315 psi | 87% | 2365 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 54,447 psi | 90% | 2297 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 92% | 53,925 psi | 90% | 2375 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 52,243 psi | 87% | 2411 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 86% | 52,808 psi | 88% | 2306 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 53,780 psi | 89% | 2333 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 50,937 psi | 85% | 2336 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 92% | 53,055 psi | 88% | 2352 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,175 psi | 65% | 2182 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 51,329 psi | 85% | 2379 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,403 psi | 57% | 1371 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 51,271 psi | 85% | 2313 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 52,112 psi | 87% | 2339 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 53,084 psi | 88% | 2326 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 94% | 54,128 psi | 90% | 2310 fps | 96.7% |
| IMR 4198 | <<locked>> | 84% | 51,648 psi | 86% | 2201 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 52,895 psi | 88% | 2323 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,538 psi | 67% | 2224 fps | 97% |
| IMR 4895 | <<locked>> | 94% | 51,416 psi | 85% | 2359 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 90% | 52,069 psi | 87% | 2306 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 51,938 psi | 86% | 2300 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 51,053 psi | 85% | 2323 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 53,156 psi | 88% | 2283 fps | 99.6% |
| Lovex S062 | <<locked>> | 96% | 52,141 psi | 87% | 2323 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,022 psi | 80% | 2270 fps | 97% |
| Norma 200 | <<locked>> | 82% | 53,432 psi | 89% | 2244 fps | 100% |
| Norma 201 | <<locked>> | 92% | 51,126 psi | 85% | 2297 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 51,576 psi | 86% | 2303 fps | 100% |
| Norma 203B | <<locked>> | 96% | 52,359 psi | 87% | 2362 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 42,627 psi | 71% | 2267 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 96% | 52,866 psi | 88% | 2388 fps | 99.6% |
| Ramshot TAC | <<locked>> | 90% | 52,518 psi | 87% | 2320 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 90% | 51,430 psi | 85% | 2336 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 53,447 psi | 89% | 2313 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,679 psi | 58% | 1404 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 52,025 psi | 86% | 2297 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 51,779 psi | 86% | 2320 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 53,243 psi | 88% | 2431 fps | 99.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 52,823 psi | 88% | 2457 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,235 psi | 70% | 2287 fps | 97% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 43,801 psi | 73% | 2303 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 90% | 52,243 psi | 87% | 2283 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 51,547 psi | 86% | 2293 fps | 99.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 51,924 psi | 86% | 2356 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,022 psi | 80% | 2270 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 92% | 51,053 psi | 85% | 2323 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 52,141 psi | 87% | 2323 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 51,793 psi | 86% | 2270 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 51,039 psi | 85% | 2293 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 54,346 psi | 90% | 2415 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 51,793 psi | 86% | 2251 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 53,853 psi | 89% | 2343 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 51,140 psi | 85% | 2323 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 53,911 psi | 90% | 2254 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 53,156 psi | 88% | 2251 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 53,185 psi | 88% | 2343 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 52,547 psi | 87% | 2254 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 53,417 psi | 89% | 2339 fps | 99.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 52,910 psi | 88% | 2356 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,971 psi | 63% | 2224 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 88% | 53,867 psi | 89% | 2228 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 53,824 psi | 89% | 2244 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 53,867 psi | 89% | 2306 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 52,199 psi | 87% | 2287 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 51,068 psi | 85% | 2300 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,266 psi | 75% | 2270 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 90% | 52,634 psi | 87% | 2306 fps | 100% |
| Vihtavuori N540 | <<locked>> | 96% | 53,650 psi | 89% | 2326 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,874 psi | 73% | 2270 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,470 psi | 77% | 2264 fps | 99.3% |
| Winchester 748 | <<locked>> | 90% | 51,561 psi | 86% | 2349 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 94% | 54,056 psi | 90% | 2375 fps | 99.9% |
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 2015 | <<locked>> | 80% | 39,291 psi | 65% | 2080 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 50,734 psi | 84% | 2300 fps | 99% |
| Accurate 2460 | <<locked>> | 80% | 42,308 psi | 70% | 2162 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,241 psi | 52% | 2001 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,579 psi | 62% | 2119 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 29,602 psi | 49% | 1988 fps | 98.9% |
| Accurate 4350 | <<locked>> | 94% | 33,982 psi | 56% | 2129 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 48,138 psi | 80% | 2149 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 48,515 psi | 81% | 2165 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 35,998 psi | 60% | 2083 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 32,808 psi | 55% | 2008 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 47,456 psi | 79% | 2241 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,072 psi | 63% | 2100 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 80% | 36,796 psi | 61% | 2100 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,932 psi | 73% | 2257 fps | 99.2% |
| Alliant Power Pro 2000-MR | 51 gr | 82% | 34,635 psi | 58% | 2136 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,356 psi | 49% | 1975 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,817 psi | 74% | 2159 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 31,995 psi | 53% | 2024 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 94% | 35,795 psi | 59% | 2142 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 86% | 31,169 psi | 52% | 2070 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,818 psi | 78% | 2149 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 34,954 psi | 58% | 2083 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 28,456 psi | 47% | 1969 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,248 psi | 67% | 2096 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,694 psi | 59% | 2106 fps | 98.6% |
| Hodgdon CFE223 | 50.9 gr | 80% | 39,450 psi | 66% | 2215 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 80% | 43,323 psi | 72% | 2182 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,990 psi | 73% | 2205 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 36,448 psi | 61% | 2110 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 36,230 psi | 60% | 2093 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,589 psi | 51% | 2014 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,285 psi | 54% | 2064 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,324 psi | 42% | 1217 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,925 psi | 58% | 2057 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 34,969 psi | 58% | 2096 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,126 psi | 53% | 1988 fps | 95.1% |
| IMR 4166 Enduron | <<locked>> | 90% | 47,892 psi | 80% | 2224 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 45,847 psi | 76% | 2133 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 46,833 psi | 78% | 2238 fps | 95.1% |
| IMR 4831 | <<locked>> | 96% | 35,650 psi | 59% | 2139 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 32,692 psi | 54% | 2051 fps | 96% |
| IMR 8208 XBR | <<locked>> | 80% | 38,072 psi | 63% | 2100 fps | 98.6% |
| Lovex D073.5 | <<locked>> | 80% | 42,105 psi | 70% | 2165 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 33,910 psi | 56% | 2067 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 36,999 psi | 61% | 2041 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 31,589 psi | 52% | 1991 fps | 97% |
| Lovex S065 | <<locked>> | 94% | 39,958 psi | 66% | 2146 fps | 95% |
| Norma 200 | <<locked>> | 80% | 50,299 psi | 84% | 2208 fps | 100% |
| Norma 201 | <<locked>> | 80% | 35,201 psi | 58% | 2051 fps | 98% |
| Norma 202 | <<locked>> | 80% | 35,186 psi | 58% | 2060 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 31,357 psi | 52% | 2014 fps | 95.4% |
| Norma URP | <<locked>> | 94% | 35,346 psi | 59% | 2136 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 33,040 psi | 55% | 2067 fps | 95.6% |
| Ramshot TAC | <<locked>> | 82% | 40,451 psi | 67% | 2139 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,825 psi | 61% | 2113 fps | 97.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,176 psi | 68% | 2136 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,469 psi | 42% | 1247 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,743 psi | 71% | 2169 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 45,513 psi | 76% | 2231 fps | 95.7% |
| ReloadSwiss RS 52 | 48.2 gr | 80% | 32,793 psi | 54% | 2096 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,340 psi | 45% | 1982 fps | 96.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 36,811 psi | 61% | 2192 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 40,857 psi | 68% | 2251 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 38,783 psi | 64% | 2093 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 33,388 psi | 55% | 2008 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 28,543 psi | 47% | 1965 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 39,958 psi | 66% | 2146 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,910 psi | 56% | 2067 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 31,589 psi | 52% | 1991 fps | 97% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,150 psi | 75% | 2182 fps | 99.4% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 47,848 psi | 79% | 2251 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,242 psi | 54% | 2057 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,687 psi | 76% | 2175 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 38,232 psi | 64% | 2113 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,534 psi | 57% | 2057 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,202 psi | 62% | 2028 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,327 psi | 50% | 1916 fps | 99.4% |
| Somchem S321 | <<locked>> | 80% | 40,640 psi | 68% | 2162 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 36,492 psi | 61% | 2028 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 35,505 psi | 59% | 2070 fps | 96.7% |
| Somchem S355 | <<locked>> | 82% | 29,907 psi | 50% | 1978 fps | 95.4% |
| Somchem S365 | <<locked>> | 90% | 27,673 psi | 46% | 2001 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 42,337 psi | 70% | 2087 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,318 psi | 62% | 2028 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,329 psi | 54% | 2008 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,315 psi | 55% | 2011 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 26,600 psi | 44% | 1890 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 94% | 37,289 psi | 62% | 2139 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 37,840 psi | 63% | 2093 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,850 psi | 53% | 2001 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 36,260 psi | 60% | 2142 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,343 psi | 52% | 1995 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 36,637 psi | 61% | 2126 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,504 psi | 56% | 2057 fps | 96.8% |
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 111 powders for 9.3 x 66 Sako loaded with the .365 | 293gr | Peregrine VRG-2. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,457 fps; across all powders the maximum-charge window runs from 1,371 fps to 2,457 fps. Accurate 4350 gives the best case fill at 100 %, and 111 of the 111 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 293.0 gr projectile in 0.365" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, Hodgdon CFE223, ReloadSwiss RS 52 rank at the top here: for 9.3 x 66 Sako with the .365 | 293gr | Peregrine VRG-2 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-23, Alliant Reloder-26, Hodgdon H4350 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.