Load data for .369 N.E. Purdey + .375 | 300gr | CutEdge MTH

.369 N.E. Purdey cartridge drawing
Cutting Edge logo

Load Specifications

Bullet Manufacturer:Cutting Edge
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Case Length (l3):2.7"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:102.11 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:44,236 psi
Recommended Twist Rate:1:13.0

Load data in caliber .369 N.E. Purdey with .375 | 300gr | CutEdge MTH bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 62.

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: 26"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>82%39,262 psi89%2267 fps100%
Accurate 4064<<locked>>84%39,755 psi90%2306 fps100%
Accurate 4350<<locked>>92%38,145 psi86%2352 fps97.9%
ADI AR 2208<<locked>>84%39,682 psi90%2287 fps98.4%
Alliant Power Pro 2000-MR<<locked>>82%39,697 psi90%2405 fps98.5%
Alliant Reloder- TS 15.5<<locked>>84%38,972 psi88%2306 fps99.4%
Alliant Reloder-15<<locked>>82%39,276 psi89%2316 fps98.6%
Alliant Reloder-16<<locked>>92%38,783 psi88%2369 fps98.1%
Alliant Reloder-17<<locked>>88%38,392 psi87%2388 fps99.3%
Alliant Reloder-23ᴾ<<locked>>100%34,940 psi79%2323 fps98.5%
Alliant Reloder-26ᴾ<<locked>>100%38,421 psi87%2451 fps97.4%
Bofors RP3<<locked>>84%38,247 psi86%2306 fps99.4%
Hodgdon H380<<locked>>84%39,494 psi89%2313 fps97.5%
Hodgdon Hybrid 100V<<locked>>94%37,637 psi85%2310 fps99%
Hodgdon LEVERevolution<<locked>>82%39,929 psi90%2359 fps99.6%
Hodgdon TrailBossᴾ<<locked>>100%34,940 psi79%1490 fps100%
IMR 4064<<locked>>82%39,160 psi89%2270 fps98.5%
IMR 4831<<locked>>94%39,436 psi89%2356 fps98.2%
Lovex S062<<locked>>82%38,725 psi88%2270 fps99.6%
Lovex S065<<locked>>88%38,145 psi86%2264 fps96.2%
Norma 203B<<locked>>82%38,609 psi87%2303 fps98.9%
Norma URP<<locked>>92%38,711 psi88%2352 fps97.8%
Ramshot Big Game<<locked>>82%38,159 psi86%2320 fps98.6%
ReloadSwiss RS 14ᴾ<<locked>>100%35,360 psi80%1526 fps100%
ReloadSwiss RS 60<<locked>>86%38,377 psi87%2395 fps100%
ReloadSwiss RS 62<<locked>>92%38,029 psi86%2372 fps97.5%
ReloadSwiss RS 70<<locked>>92%38,754 psi88%2385 fps96.9%
Rottweil R 903<<locked>>86%38,508 psi87%2306 fps99.3%
Shooters World Long Rifle<<locked>>88%38,145 psi86%2264 fps96.2%
Shooters World Precision<<locked>>82%38,725 psi88%2270 fps99.6%
SNPE Vectan SP 11<<locked>>86%39,885 psi90%2356 fps99%
SNPE Vectan Tubal 5000<<locked>>84%39,233 psi89%2208 fps100%
Somchem S355<<locked>>86%39,494 psi89%2310 fps99.3%
Somchem S365<<locked>>96%39,102 psi88%2402 fps99.9%
Vihtavuori N135<<locked>>82%40,016 psi90%2267 fps100%
Vihtavuori N150<<locked>>86%37,710 psi85%2254 fps99.7%
Vihtavuori N160<<locked>>90%38,130 psi86%2310 fps97.5%
Vihtavuori N540<<locked>>82%39,117 psi88%2270 fps100%
Vihtavuori N550<<locked>>92%39,842 psi90%2356 fps97.8%
Vihtavuori N555ᴾ<<locked>>100%37,333 psi84%2385 fps98.3%
Winchester 6.5 StaBALL<<locked>>90%38,261 psi86%2290 fps99.2%
Winchester StaBALL HDᴾ<<locked>>100%30,908 psi70%2306 fps97.9%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%36,753 psi83%2224 fps100%
Accurate 4064<<locked>>80%34,780 psi79%2221 fps100%
Accurate 4350<<locked>>86%30,792 psi70%2201 fps95.5%
ADI AR 2208<<locked>>80%35,027 psi79%2198 fps97.3%
Alliant Power Pro 2000-MR<<locked>>80%37,115 psi84%2352 fps97.8%
Alliant Reloder- TS 15.5<<locked>>80%34,185 psi77%2215 fps98.6%
Alliant Reloder-15<<locked>>80%36,898 psi83%2270 fps98.1%
Alliant Reloder-16<<locked>>86%32,155 psi73%2221 fps95.8%
Alliant Reloder-1761.1 gr80%29,370 psi66%2182 fps96.6%
Alliant Reloder-23<<locked>>92%27,340 psi62%2133 fps95.3%
Alliant Reloder-26<<locked>>96%33,460 psi76%2339 fps95.5%
Bofors RP3<<locked>>80%33,446 psi76%2215 fps98.6%
Hodgdon H380<<locked>>80%34,476 psi78%2215 fps96.1%
Hodgdon Hybrid 100V<<locked>>84%27,456 psi62%2083 fps95.8%
Hodgdon LEVERevolution<<locked>>80%37,347 psi84%2313 fps99.3%
Hodgdon TrailBoss<<locked>>80%25,933 psi59%1329 fps100%
IMR 4064<<locked>>80%36,753 psi83%2224 fps98%
IMR 4831<<locked>>86%30,211 psi68%2169 fps95.3%
Lovex S062<<locked>>80%36,376 psi82%2228 fps99.3%
Lovex S065<<locked>>86%35,911 psi81%2221 fps95.5%
Norma 203B<<locked>>80%36,260 psi82%2260 fps98.4%
Norma URP<<locked>>86%31,894 psi72%2211 fps95.7%
Ramshot Big Game<<locked>>80%35,694 psi81%2270 fps98.1%
ReloadSwiss RS 14<<locked>>80%26,223 psi59%1362 fps100%
ReloadSwiss RS 60<<locked>>80%31,328 psi71%2241 fps99.4%
ReloadSwiss RS 6265.6 gr86%30,951 psi70%2218 fps95%
ReloadSwiss RS 7068.3 gr88%33,895 psi77%2277 fps95%
Rottweil R 903<<locked>>80%31,372 psi71%2162 fps97.8%
Shooters World Long Rifle<<locked>>86%35,911 psi81%2221 fps95.5%
Shooters World Precision<<locked>>80%36,376 psi82%2228 fps99.3%
SNPE Vectan SP 11<<locked>>80%32,677 psi74%2211 fps97.3%
SNPE Vectan Tubal 5000<<locked>>80%34,505 psi78%2129 fps100%
Somchem S355<<locked>>80%32,532 psi74%2172 fps97.8%
Somchem S365<<locked>>80%23,395 psi53%2021 fps95.1%
Vihtavuori N135<<locked>>80%37,449 psi85%2224 fps100%
Vihtavuori N150<<locked>>80%30,821 psi70%2116 fps98.5%
Vihtavuori N160<<locked>>84%31,314 psi71%2165 fps95.3%
Vihtavuori N540<<locked>>80%36,637 psi83%2228 fps100%
Vihtavuori N550<<locked>>86%32,619 psi74%2215 fps95.7%
Vihtavuori N555<<locked>>92%28,790 psi65%2195 fps95.4%
Winchester 6.5 StaBALL<<locked>>80%27,528 psi62%2054 fps95.8%
Winchester StaBALL HD<<locked>>96%27,209 psi62%2195 fps95.5%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 42 powders for .369 N.E. Purdey loaded with the .375 | 300gr | CutEdge MTH. Alliant Reloder-26 delivers the highest muzzle velocity at 2,451 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,451 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (305 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon TrailBoss 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for .369 N.E. Purdey with the .375 | 300gr | 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.

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