Load Specifications
Load data in caliber .300 HAM'R with .308 | 170gr | Winchester FN Pow.Point 30-30 bullet and 33 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-7, ADI AR 2219 and ADI AR 2207.
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 1680 | <<locked>> | 92% | 50,488 psi | 88% | 1880 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 37,043 psi | 64% | 1788 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 98% | 50,865 psi | 88% | 1877 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 98% | 51,532 psi | 90% | 1883 fps | 97.1% |
| ADI AR 2205 | <<locked>> | 84% | 49,980 psi | 87% | 1781 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 51,474 psi | 90% | 1932 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 50,488 psi | 88% | 1972 fps | 98.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 34,809 psi | 61% | 1808 fps | 99.1% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 44,338 psi | 77% | 1890 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 96% | 50,314 psi | 88% | 1909 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 48,457 psi | 84% | 1870 fps | 98.5% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 45,063 psi | 78% | 1909 fps | 97.6% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 45,803 psi | 80% | 1923 fps | 96.6% |
| Hodgdon H4198 | <<locked>> | 94% | 50,285 psi | 87% | 1880 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,051 psi | 51% | 1106 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 48,660 psi | 85% | 1896 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 50,546 psi | 88% | 1860 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 50,705 psi | 88% | 1880 fps | 100% |
| Lovex D073.4 | <<locked>> | 98% | 50,647 psi | 88% | 1969 fps | 96.8% |
| Lovex S053 | <<locked>> | 92% | 50,589 psi | 88% | 1847 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 49,734 psi | 86% | 1946 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,572 psi | 48% | 1125 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 48,921 psi | 85% | 1877 fps | 100% |
| Shooters World AR Plus | <<locked>> | 98% | 50,647 psi | 88% | 1969 fps | 96.8% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 50,705 psi | 88% | 1880 fps | 100% |
| Shooters World SOCOM | <<locked>> | 84% | 51,445 psi | 89% | 1870 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 51,779 psi | 90% | 1749 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 50,473 psi | 88% | 1972 fps | 97.6% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 46,586 psi | 81% | 1903 fps | 98.7% |
| Vihtavuori N110 | <<locked>> | 86% | 49,937 psi | 87% | 1778 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 51,880 psi | 90% | 1903 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 42,772 psi | 74% | 1827 fps | 99.2% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 36,825 psi | 64% | 1752 fps | 97.2% |
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>> | 80% | 32,213 psi | 56% | 1644 fps | 97.2% |
| Accurate 2015 | <<locked>> | 94% | 29,544 psi | 51% | 1670 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 86% | 34,330 psi | 60% | 1663 fps | 95% |
| Accurate LT-32 | <<locked>> | 92% | 42,134 psi | 73% | 1772 fps | 95% |
| ADI AR 2205 | <<locked>> | 80% | 44,077 psi | 77% | 1719 fps | 100% |
| ADI AR 2207 | 16.3 gr | 80% | 27,383 psi | 48% | 1614 fps | 99% |
| ADI AR 2219 | 20.7 gr | 92% | 37,681 psi | 66% | 1808 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 90% | 24,439 psi | 43% | 1604 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 86% | 26,977 psi | 47% | 1624 fps | 95.5% |
| Alliant Reloder-7 | 16.9 gr | 80% | 28,689 psi | 50% | 1614 fps | 96.7% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 34,374 psi | 60% | 1690 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 94% | 36,477 psi | 63% | 1788 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 96% | 39,697 psi | 69% | 1841 fps | 95% |
| Hodgdon H4198 | <<locked>> | 86% | 38,479 psi | 67% | 1732 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,349 psi | 35% | 978 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 25,817 psi | 45% | 1552 fps | 95.7% |
| IMR 4227 | <<locked>> | 80% | 36,361 psi | 63% | 1690 fps | 99.7% |
| Lovex D060 | <<locked>> | 80% | 44,773 psi | 78% | 1811 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 94% | 43,337 psi | 75% | 1883 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 34,809 psi | 61% | 1663 fps | 100% |
| Norma 200 | <<locked>> | 82% | 25,295 psi | 44% | 1591 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,160 psi | 33% | 994 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 34,853 psi | 61% | 1703 fps | 99.5% |
| Shooters World AR Plus | <<locked>> | 94% | 43,337 psi | 75% | 1883 fps | 95.2% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 44,773 psi | 78% | 1811 fps | 99.8% |
| Shooters World SOCOM | <<locked>> | 80% | 44,672 psi | 78% | 1795 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,343 psi | 56% | 1539 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 40,422 psi | 70% | 1847 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 33,547 psi | 58% | 1722 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 41,321 psi | 72% | 1693 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,876 psi | 48% | 1601 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 26,818 psi | 47% | 1581 fps | 95% |
| Vihtavuori N133 | <<locked>> | 94% | 30,284 psi | 53% | 1650 fps | 95% |
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 33 powders for .300 HAM'R loaded with the .308 | 170gr | Winchester FN Pow.Point 30-30. ADI AR 2219 delivers the highest muzzle velocity at 1,972 fps; across all powders the maximum-charge window runs from 1,106 fps to 1,972 fps. Accurate 2015 gives the best case fill at 100 %, and 33 of the 33 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (396 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, ADI AR 2219, 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. Alliant Reloder-7, ADI AR 2219, ADI AR 2207 rank at the top here: for .300 HAM'R with the .308 | 170gr | Winchester FN Pow.Point 30-30 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.