Load data for .416 Taylor Mag. + .416 | 320gr | Atomic 29 HP

.416 Taylor Mag. cartridge drawing
Atomic 29 logo

Load Specifications

Bullet Manufacturer:Atomic 29
Bullet Weight:320 gr
Bullet Diameter:0.416"
Bullet Length:<<locked>>
Case Length (l3):2.49"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:92 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:21.0

Load data in caliber .416 Taylor Mag. with .416 | 320gr | Atomic 29 HP bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Accurate 2230 and Hodgdon H322.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>86%54,984 psi86%2369 fps100%
Accurate 2015ᴾ<<locked>>100%55,259 psi87%2448 fps100%
Accurate 2200<<locked>>90%54,795 psi86%2487 fps96.9%
Accurate 2230<<locked>>90%54,723 psi86%2493 fps97.3%
Accurate 2460<<locked>>96%54,230 psi85%2467 fps99.8%
Accurate 2495ᴾ<<locked>>100%42,859 psi67%2356 fps100%
Accurate 2520ᴾ<<locked>>100%54,853 psi86%2513 fps99.7%
Accurate 4064ᴾ<<locked>>100%39,871 psi62%2333 fps98.9%
Accurate LT-30<<locked>>92%55,564 psi87%2382 fps100%
Accurate LT-32<<locked>>92%56,072 psi88%2395 fps99.7%
ADI APS 450<<locked>>82%57,508 psi90%1791 fps100%
ADI AR 2206Hᴾ<<locked>>100%51,271 psi80%2464 fps97.2%
ADI AR 2207<<locked>>90%55,492 psi87%2402 fps100%
ADI AR 2219<<locked>>92%53,940 psi85%2480 fps100%
ADI Benchmark 8208ᴾ<<locked>>100%54,679 psi86%2480 fps98.7%
Alliant AR-Compᴾ<<locked>>100%51,779 psi81%2474 fps100%
Alliant Power Pro 1200-R<<locked>>96%55,361 psi87%2569 fps98.6%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%40,872 psi64%2329 fps96%
Alliant Reloder-10x<<locked>>96%55,956 psi88%2464 fps100%
Alliant Reloder-7<<locked>>90%57,174 psi90%2418 fps100%
Baschieri & Pellagri 106<<locked>>94%57,363 psi90%2421 fps100%
Baschieri & Pellagri 107ᴾ<<locked>>100%51,184 psi80%2470 fps95.8%
Bofors RP3ᴾ<<locked>>100%39,885 psi63%2329 fps95.8%
Hodgdon Benchmarkᴾ<<locked>>100%57,740 psi90%2474 fps99.4%
Hodgdon BL-C2ᴾ<<locked>>100%51,880 psi81%2500 fps98.9%
Hodgdon CFE223<<locked>>98%54,781 psi86%2579 fps97.2%
Hodgdon H322<<locked>>96%55,564 psi87%2500 fps100%
Hodgdon H335<<locked>>96%57,014 psi89%2526 fps100%
Hodgdon H4198<<locked>>88%54,360 psi85%2382 fps100%
Hodgdon H4895ᴾ<<locked>>100%51,517 psi81%2474 fps97.8%
Hodgdon LEVERevolutionᴾ<<locked>>100%46,485 psi73%2441 fps97.2%
Hodgdon TrailBossᴾ<<locked>>100%32,518 psi51%1424 fps100%
Hodgdon VARGETᴾ<<locked>>100%50,241 psi79%2434 fps97.4%
IMR 3031ᴾ<<locked>>100%48,994 psi77%2474 fps100%
IMR 4198<<locked>>96%57,493 psi90%2434 fps100%
IMR 4227<<locked>>84%54,404 psi85%2329 fps100%
IMR 4895ᴾ<<locked>>100%46,021 psi72%2421 fps96.3%
IMR 8208 XBRᴾ<<locked>>100%54,679 psi86%2480 fps98.7%
Lovex D073.4<<locked>>90%55,434 psi87%2487 fps99.7%
Lovex D073.5<<locked>>96%54,534 psi85%2477 fps99.3%
Lovex D073.6ᴾ<<locked>>100%48,370 psi76%2444 fps99.2%
Lovex S053<<locked>>86%56,072 psi88%2316 fps100%
Lovex S060ᴾ<<locked>>100%53,084 psi83%2408 fps97.4%
Lovex S062ᴾ<<locked>>100%43,932 psi69%2346 fps97.1%
Norma 200<<locked>>92%55,999 psi88%2444 fps100%
Norma 201ᴾ<<locked>>100%49,661 psi78%2418 fps98.2%
Norma 202ᴾ<<locked>>100%49,864 psi78%2438 fps99.7%
Ramshot Wild Boarᴾ<<locked>>100%53,954 psi85%2503 fps97.5%
Ramshot X-Terminator<<locked>>98%57,305 psi90%2490 fps97.8%
ReloadSwiss RS 14ᴾ<<locked>>100%32,561 psi51%1457 fps100%
ReloadSwiss RS 36<<locked>>84%54,433 psi85%2365 fps100%
ReloadSwiss RS 40<<locked>>96%54,882 psi86%2480 fps99.6%
ReloadSwiss RS 60ᴾ<<locked>>100%39,436 psi62%2352 fps96.6%
Rottweil R 901ᴾ<<locked>>100%53,809 psi84%2457 fps99.8%
Rottweil R 902ᴾ<<locked>>100%46,905 psi74%2369 fps97.6%
Shooters World AR Plus<<locked>>90%55,434 psi87%2487 fps99.7%
Shooters World Match Rifleᴾ<<locked>>100%48,370 psi76%2444 fps99.2%
Shooters World Precisionᴾ<<locked>>100%43,932 psi69%2346 fps97.1%
Shooters World Tactical Rifle<<locked>>94%56,304 psi88%2457 fps98.6%
SNPE Vectan BA6 1/2<<locked>>90%56,521 psi89%2178 fps100%
SNPE Vectan SP 10<<locked>>92%54,302 psi85%2487 fps99.9%
SNPE Vectan SP 3<<locked>>96%57,595 psi90%2480 fps100%
SNPE Vectan SP 9ᴾ<<locked>>100%49,763 psi78%2438 fps96.8%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%53,461 psi84%2392 fps99.8%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%42,801 psi67%2264 fps99.4%
Somchem S321<<locked>>98%55,956 psi88%2520 fps99.1%
Somchem S335ᴾ<<locked>>100%51,488 psi81%2388 fps99.9%
Somchem S341ᴾ<<locked>>100%52,301 psi82%2454 fps97.1%
Vihtavuori N120<<locked>>90%55,564 psi87%2359 fps100%
Vihtavuori N130<<locked>>98%56,536 psi89%2418 fps100%
Vihtavuori N133ᴾ<<locked>>100%52,620 psi82%2385 fps100%
Vihtavuori N135ᴾ<<locked>>100%44,469 psi70%2359 fps100%
Vihtavuori N140ᴾ<<locked>>100%47,036 psi74%2372 fps99.6%
Vihtavuori N150ᴾ<<locked>>100%37,347 psi59%2231 fps95.9%
Vihtavuori N530ᴾ<<locked>>100%55,535 psi87%2480 fps98.9%
Vihtavuori N540ᴾ<<locked>>100%45,295 psi71%2365 fps99.1%
Winchester 748ᴾ<<locked>>100%53,156 psi83%2516 fps99.2%
Winchester StaBALL Matchᴾ<<locked>>100%48,704 psi76%2441 fps97.3%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%45,107 psi71%2244 fps100%
Accurate 2015<<locked>>80%29,370 psi46%2041 fps98.2%
Accurate 2200<<locked>>86%47,819 psi75%2388 fps95.5%
Accurate 223061.1 gr84%44,237 psi69%2343 fps95.1%
Accurate 2460<<locked>>80%31,270 psi49%2103 fps95.9%
Accurate 2495<<locked>>80%21,625 psi34%1919 fps95.5%
Accurate 2520<<locked>>84%31,241 psi49%2139 fps95.4%
Accurate 4064<<locked>>88%26,847 psi42%2067 fps95.1%
Accurate LT-30<<locked>>80%38,421 psi60%2136 fps99%
Accurate LT-32<<locked>>80%38,798 psi61%2142 fps97.5%
ADI APS 450<<locked>>80%55,550 psi87%1768 fps100%
ADI AR 2206H<<locked>>94%42,293 psi66%2323 fps95.2%
ADI AR 2207<<locked>>80%40,712 psi64%2215 fps100%
ADI AR 2219<<locked>>80%35,897 psi56%2205 fps98.4%
ADI Benchmark 8208<<locked>>88%37,391 psi59%2215 fps95.2%
Alliant AR-Comp<<locked>>80%27,035 psi42%2057 fps99.4%
Alliant Power Pro 1200-R57.8 gr86%39,798 psi62%2329 fps95.4%
Alliant Reloder- TS 15.5<<locked>>98%38,247 psi60%2283 fps95.2%
Alliant Reloder-10x<<locked>>80%34,084 psi53%2142 fps99.7%
Alliant Reloder-7<<locked>>80%41,989 psi66%2224 fps100%
Baschieri & Pellagri 106<<locked>>80%36,637 psi57%2129 fps98.9%
Baschieri & Pellagri 107<<locked>>98%47,776 psi75%2418 fps95%
Bofors RP3<<locked>>98%37,115 psi58%2280 fps95%
Hodgdon Benchmark<<locked>>84%35,665 psi56%2136 fps95.3%
Hodgdon BL-C2<<locked>>88%34,389 psi54%2218 fps95.1%
Hodgdon CFE223<<locked>>94%47,558 psi75%2474 fps95.7%
Hodgdon H32253.7 gr80%32,880 psi52%2146 fps97.7%
Hodgdon H335<<locked>>80%32,982 psi52%2152 fps96.7%
Hodgdon H4198<<locked>>80%42,453 psi67%2215 fps99.2%
Hodgdon H4895<<locked>>92%39,943 psi63%2293 fps95.2%
Hodgdon LEVERevolution<<locked>>96%40,828 psi64%2346 fps95.7%
Hodgdon TrailBoss<<locked>>80%23,960 psi38%1270 fps100%
Hodgdon VARGET<<locked>>94%41,626 psi65%2300 fps95.5%
IMR 3031<<locked>>80%25,773 psi40%2028 fps95.8%
IMR 4198<<locked>>80%36,027 psi56%2136 fps100%
IMR 4227<<locked>>80%48,327 psi76%2257 fps100%
IMR 4895<<locked>>98%43,018 psi67%2375 fps95.6%
IMR 8208 XBR<<locked>>88%37,391 psi59%2215 fps95.2%
Lovex D073.4<<locked>>80%38,783 psi61%2247 fps97.4%
Lovex D073.5<<locked>>82%33,344 psi52%2146 fps95.1%
Lovex D073.6<<locked>>88%31,850 psi50%2165 fps95.6%
Lovex S053<<locked>>80%47,224 psi74%2211 fps100%
Lovex S060<<locked>>94%44,353 psi70%2283 fps95.6%
Lovex S062<<locked>>94%36,448 psi57%2218 fps95.1%
Norma 200<<locked>>80%38,479 psi60%2208 fps100%
Norma 201<<locked>>90%36,216 psi57%2195 fps95%
Norma 202<<locked>>84%29,762 psi47%2087 fps95.6%
Ramshot Wild Boar<<locked>>94%44,121 psi69%2362 fps95.5%
Ramshot X-Terminator<<locked>>90%44,048 psi69%2303 fps95.3%
ReloadSwiss RS 14<<locked>>80%23,946 psi38%1302 fps100%
ReloadSwiss RS 36<<locked>>80%48,138 psi75%2290 fps100%
ReloadSwiss RS 40<<locked>>80%32,663 psi51%2119 fps95.3%
ReloadSwiss RS 60<<locked>>98%36,941 psi58%2300 fps95.7%
Rottweil R 901<<locked>>80%29,356 psi46%2037 fps95%
Rottweil R 902<<locked>>92%36,579 psi57%2195 fps95.1%
Shooters World AR Plus<<locked>>80%38,783 psi61%2247 fps97.4%
Shooters World Match Rifle<<locked>>88%31,850 psi50%2165 fps95.6%
Shooters World Precision<<locked>>94%36,448 psi57%2218 fps95.1%
Shooters World Tactical Rifle<<locked>>84%39,784 psi62%2221 fps95.4%
SNPE Vectan BA6 1/2<<locked>>80%43,482 psi68%2031 fps100%
SNPE Vectan SP 10<<locked>>80%36,260 psi57%2208 fps97.5%
SNPE Vectan SP 3<<locked>>80%34,766 psi54%2149 fps98.8%
SNPE Vectan SP 9<<locked>>96%43,671 psi68%2346 fps95.4%
SNPE Vectan Tubal 3000<<locked>>82%30,516 psi48%2021 fps95.7%
SNPE Vectan Tubal 5000<<locked>>84%26,179 psi41%1942 fps95%
Somchem S321<<locked>>86%37,246 psi58%2238 fps95.6%
Somchem S335<<locked>>80%27,833 psi44%1982 fps95.7%
Somchem S341<<locked>>96%45,556 psi71%2359 fps95.7%
Vihtavuori N120<<locked>>80%40,857 psi64%2175 fps100%
Vihtavuori N130<<locked>>80%32,721 psi51%2070 fps99.4%
Vihtavuori N133<<locked>>80%28,384 psi44%1991 fps97.7%
Vihtavuori N135<<locked>>80%23,453 psi37%1942 fps96%
Vihtavuori N140<<locked>>84%28,268 psi44%2031 fps95.2%
Vihtavuori N150<<locked>>98%35,070 psi55%2188 fps95.1%
Vihtavuori N530<<locked>>88%37,159 psi58%2208 fps95.2%
Vihtavuori N540<<locked>>88%30,777 psi48%2106 fps95.6%
Winchester 748<<locked>>88%35,752 psi56%2238 fps95.7%
Winchester StaBALL Match<<locked>>94%39,958 psi63%2300 fps95.1%

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 94 powders for .416 Taylor Mag. loaded with the .416 | 320gr | Atomic 29 HP. Hodgdon CFE223 delivers the highest muzzle velocity at 2,579 fps; across all powders the maximum-charge window runs from 1,424 fps to 2,579 fps. Accurate 2015 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 320.0 gr projectile in 0.416" calls for a 1:21.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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 1200-R, Accurate 2230, Hodgdon H322 rank at the top here: for .416 Taylor Mag. with the .416 | 320gr | Atomic 29 HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2208, Alliant Power Pro 2000-MR, Alliant Reloder-17 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.

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