Load Specifications
Load data in caliber .300 HAM'R with .311 | 180gr | CamPro bullet and 34 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Alliant Reloder-7 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% | 48,994 psi | 85% | 1775 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 35,592 psi | 62% | 1690 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 98% | 50,024 psi | 87% | 1781 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 98% | 50,705 psi | 88% | 1785 fps | 97% |
| Accurate No. 11 FS | <<locked>> | 82% | 51,619 psi | 90% | 1772 fps | 100% |
| ADI AR 2205 | <<locked>> | 84% | 49,037 psi | 85% | 1690 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 50,024 psi | 87% | 1831 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 49,763 psi | 87% | 1873 fps | 98.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 33,620 psi | 58% | 1706 fps | 99% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 43,323 psi | 75% | 1795 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 96% | 49,139 psi | 85% | 1811 fps | 100% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 50,444 psi | 88% | 1804 fps | 98.8% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 44,019 psi | 77% | 1808 fps | 97.5% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 44,759 psi | 78% | 1824 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 94% | 48,979 psi | 85% | 1778 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,543 psi | 50% | 1043 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 47,210 psi | 82% | 1791 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 48,979 psi | 85% | 1759 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 50,401 psi | 88% | 1788 fps | 100% |
| Lovex D073.4 | <<locked>> | 98% | 49,110 psi | 85% | 1860 fps | 96.6% |
| Lovex S053 | <<locked>> | 92% | 49,835 psi | 87% | 1755 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 48,196 psi | 84% | 1841 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,093 psi | 47% | 1063 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 51,300 psi | 89% | 1814 fps | 100% |
| Shooters World AR Plus | <<locked>> | 98% | 49,110 psi | 85% | 1860 fps | 96.6% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 50,401 psi | 88% | 1788 fps | 100% |
| Shooters World SOCOM | <<locked>> | 84% | 50,560 psi | 88% | 1772 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 50,618 psi | 88% | 1654 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 49,284 psi | 86% | 1870 fps | 97.4% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 45,600 psi | 79% | 1804 fps | 98.6% |
| Vihtavuori N110 | <<locked>> | 88% | 51,634 psi | 90% | 1709 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 50,459 psi | 88% | 1801 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 41,858 psi | 73% | 1732 fps | 99.2% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 36,042 psi | 63% | 1663 fps | 97.1% |
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% | 31,749 psi | 55% | 1562 fps | 97.2% |
| Accurate 2015 | <<locked>> | 94% | 28,921 psi | 50% | 1588 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 88% | 35,636 psi | 62% | 1608 fps | 95.6% |
| Accurate LT-32 | <<locked>> | 94% | 44,353 psi | 77% | 1716 fps | 95.7% |
| Accurate No. 11 FS | <<locked>> | 80% | 48,225 psi | 84% | 1739 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 43,540 psi | 76% | 1634 fps | 100% |
| ADI AR 2207 | 15.1 gr | 80% | 26,687 psi | 46% | 1532 fps | 99% |
| ADI AR 2219 | 19.2 gr | 92% | 36,941 psi | 64% | 1716 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 92% | 25,628 psi | 45% | 1562 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 86% | 26,252 psi | 46% | 1542 fps | 95.4% |
| Alliant Reloder-7 | 15.6 gr | 80% | 27,717 psi | 48% | 1526 fps | 96.6% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 33,170 psi | 58% | 1594 fps | 95% |
| Hodgdon H322 | <<locked>> | 94% | 35,665 psi | 62% | 1696 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 98% | 41,800 psi | 73% | 1785 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 86% | 37,304 psi | 65% | 1637 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 19,841 psi | 35% | 922 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 25,092 psi | 44% | 1470 fps | 95.6% |
| IMR 4227 | <<locked>> | 80% | 35,520 psi | 62% | 1601 fps | 99.7% |
| Lovex D060 | <<locked>> | 80% | 44,063 psi | 77% | 1716 fps | 99.8% |
| Lovex D073.4 | <<locked>> | 94% | 42,264 psi | 74% | 1785 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 33,837 psi | 59% | 1575 fps | 100% |
| Norma 200 | <<locked>> | 82% | 24,511 psi | 43% | 1509 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 19,247 psi | 33% | 948 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 33,808 psi | 59% | 1611 fps | 99.4% |
| Shooters World AR Plus | <<locked>> | 94% | 42,264 psi | 74% | 1785 fps | 95% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 44,063 psi | 77% | 1716 fps | 99.8% |
| Shooters World SOCOM | <<locked>> | 80% | 44,150 psi | 77% | 1706 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 32,068 psi | 56% | 1463 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 39,450 psi | 69% | 1752 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 32,576 psi | 57% | 1631 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 39,827 psi | 69% | 1598 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 27,180 psi | 47% | 1519 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 88% | 27,702 psi | 48% | 1529 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 94% | 29,704 psi | 52% | 1565 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 34 powders for .300 HAM'R loaded with the .311 | 180gr | CamPro. ADI AR 2219 delivers the highest muzzle velocity at 1,873 fps; across all powders the maximum-charge window runs from 1,043 fps to 1,873 fps. Accurate 2015 gives the best case fill at 100 %, and 34 of the 34 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (396 MPa), the top charges use 47–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.311" calls for a 1:16.5 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. ADI AR 2219, Alliant Reloder-7, ADI AR 2207 rank at the top here: for .300 HAM'R with the .311 | 180gr | CamPro 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.