Load Specifications
Load data in caliber .300 HAM'R with .311 | 130gr | CutEdge ESP Raptor bullet and 22 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World Buffalo Rifle, Lovex D060 and ReloadSwiss RS 36.
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: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680ᴾ | <<locked>> | 100% | 51,242 psi | 89% | 2139 fps | 97.8% |
| Accurate 5744 | <<locked>> | 84% | 49,559 psi | 86% | 2129 fps | 98.5% |
| Accurate No. 11 FS | <<locked>> | 88% | 51,271 psi | 89% | 2133 fps | 100% |
| ADI AR 2205 | <<locked>> | 90% | 49,037 psi | 85% | 2037 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 40,350 psi | 70% | 2080 fps | 99.3% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 42,931 psi | 75% | 2080 fps | 97.2% |
| Hodgdon LilGun | <<locked>> | 84% | 50,821 psi | 88% | 2142 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 26,208 psi | 46% | 1240 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 37,304 psi | 65% | 1988 fps | 95.9% |
| IMR 4227 | <<locked>> | 98% | 50,952 psi | 89% | 2133 fps | 99.6% |
| Lovex D060 | <<locked>> | 90% | 49,559 psi | 86% | 2129 fps | 98.5% |
| Lovex D063 | <<locked>> | 86% | 49,197 psi | 86% | 2116 fps | 98.5% |
| Lovex S040 | <<locked>> | 84% | 50,908 psi | 89% | 2041 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 50,241 psi | 87% | 2126 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 24,352 psi | 42% | 1257 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 48,791 psi | 85% | 2149 fps | 99.4% |
| Shooters World Blackout | <<locked>> | 86% | 49,197 psi | 86% | 2116 fps | 98.5% |
| Shooters World Buffalo Rifle | <<locked>> | 90% | 49,559 psi | 86% | 2129 fps | 98.5% |
| Shooters World SOCOM | <<locked>> | 90% | 50,343 psi | 88% | 2116 fps | 99% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 45,963 psi | 80% | 1969 fps | 100% |
| Vihtavuori N110 | <<locked>> | 94% | 49,472 psi | 86% | 2060 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 40,886 psi | 71% | 2060 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 16"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 94% | 41,278 psi | 72% | 2011 fps | 95.8% |
| Accurate 5744 | <<locked>> | 80% | 42,989 psi | 75% | 2037 fps | 97.4% |
| Accurate No. 11 FS | <<locked>> | 80% | 38,130 psi | 66% | 1959 fps | 99% |
| ADI AR 2205 | <<locked>> | 80% | 35,331 psi | 61% | 1854 fps | 99.6% |
| ADI AR 2207 | <<locked>> | 88% | 26,397 psi | 46% | 1831 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 94% | 35,041 psi | 61% | 1959 fps | 95% |
| Hodgdon LilGun | <<locked>> | 80% | 43,482 psi | 76% | 2060 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 17,796 psi | 31% | 1093 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 34,969 psi | 61% | 1946 fps | 95.1% |
| IMR 4227 | <<locked>> | 82% | 30,037 psi | 52% | 1818 fps | 95.4% |
| Lovex D060 | 15.9 gr | 80% | 35,955 psi | 63% | 1923 fps | 95.4% |
| Lovex D063 | <<locked>> | 80% | 39,740 psi | 69% | 1985 fps | 96.7% |
| Lovex S040 | <<locked>> | 80% | 45,223 psi | 79% | 1975 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 26,339 psi | 46% | 1755 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 16,839 psi | 29% | 1119 fps | 100% |
| ReloadSwiss RS 36 | 17.4 gr | 84% | 30,066 psi | 52% | 1857 fps | 95.2% |
| Shooters World Blackout | <<locked>> | 80% | 39,740 psi | 69% | 1985 fps | 96.7% |
| Shooters World Buffalo Rifle | 15.9 gr | 80% | 35,955 psi | 63% | 1923 fps | 95.4% |
| Shooters World SOCOM | <<locked>> | 80% | 35,085 psi | 61% | 1900 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 25,150 psi | 44% | 1667 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 31,459 psi | 55% | 1824 fps | 100% |
| Vihtavuori N120 | <<locked>> | 84% | 23,453 psi | 41% | 1736 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 22 powders for .300 HAM'R loaded with the .311 | 130gr | CutEdge ESP Raptor. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,149 fps; across all powders the maximum-charge window runs from 1,240 fps to 2,149 fps. Accurate 1680 gives the best case fill at 100 %, and 22 of the 22 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (396 MPa), the top charges use 42–89 %, leaving at least 11 % headroom. The 130.0 gr projectile in 0.311" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 1680, ADI AR 2207, Alliant Reloder-7 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. Shooters World Buffalo Rifle, Lovex D060, ReloadSwiss RS 36 rank at the top here: for .300 HAM'R with the .311 | 130gr | CutEdge ESP Raptor they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.