Load data for .30 BR + .308 | 170gr | Swift A-Frame

.30 BR cartridge drawing
Swift logo

Load Specifications

Bullet Manufacturer:Swift
Bullet Weight:170 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):1.501"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:41 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:6.0

Load data in caliber .30 BR with .308 | 170gr | Swift A-Frame bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and Hodgdon H335.

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>>88%53,156 psi90%2339 fps100%
Accurate 2015ᴾ<<locked>>100%49,240 psi84%2369 fps100%
Accurate 2460<<locked>>98%51,213 psi87%2421 fps99%
Accurate 2495ᴾ<<locked>>100%37,144 psi63%2267 fps99.4%
Accurate 2520ᴾ<<locked>>100%47,964 psi82%2418 fps98.4%
Accurate 4064ᴾ<<locked>>100%34,650 psi59%2238 fps96.8%
Accurate LT-30<<locked>>92%50,879 psi87%2313 fps99.7%
Accurate LT-32<<locked>>92%51,401 psi88%2320 fps98.7%
ADI AR 2207<<locked>>90%50,299 psi86%2346 fps100%
ADI AR 2219<<locked>>94%51,474 psi88%2441 fps99.7%
ADI Benchmark 8208ᴾ<<locked>>100%48,892 psi83%2388 fps96.7%
Alliant AR-Compᴾ<<locked>>100%45,672 psi78%2398 fps100%
Alliant Power Pro 1200-R<<locked>>98%52,040 psi89%2513 fps97%
Alliant Reloder-10x<<locked>>96%50,140 psi85%2395 fps100%
Alliant Reloder-7<<locked>>90%52,156 psi89%2359 fps100%
Baschieri & Pellagri 106<<locked>>94%52,228 psi89%2352 fps99.9%
Hodgdon Benchmarkᴾ<<locked>>100%52,475 psi89%2392 fps97.9%
Hodgdon BL-C2ᴾ<<locked>>100%45,339 psi77%2398 fps96.8%
Hodgdon H322<<locked>>98%52,953 psi90%2461 fps99.8%
Hodgdon H335<<locked>>96%50,415 psi86%2434 fps99.1%
Hodgdon H4198<<locked>>90%52,721 psi90%2349 fps99.6%
Hodgdon TrailBossᴾ<<locked>>100%31,879 psi54%1398 fps100%
IMR 3031ᴾ<<locked>>100%43,091 psi73%2382 fps99.5%
IMR 4198<<locked>>96%51,953 psi88%2369 fps100%
IMR 4227<<locked>>84%50,198 psi85%2277 fps100%
IMR 8208 XBRᴾ<<locked>>100%48,892 psi83%2388 fps96.7%
Lovex D073.4<<locked>>92%52,721 psi90%2444 fps98.8%
Lovex D073.5<<locked>>98%51,692 psi88%2428 fps98.1%
Lovex D073.6ᴾ<<locked>>100%42,177 psi72%2346 fps97.3%
Lovex S053<<locked>>86%51,416 psi88%2264 fps100%
Norma 200<<locked>>92%50,415 psi86%2379 fps100%
Norma 201ᴾ<<locked>>100%44,251 psi75%2323 fps95.9%
Norma 202ᴾ<<locked>>100%43,976 psi75%2346 fps98.3%
ReloadSwiss RS 14ᴾ<<locked>>100%32,068 psi55%1437 fps100%
ReloadSwiss RS 36<<locked>>86%52,649 psi90%2343 fps100%
ReloadSwiss RS 40<<locked>>98%52,243 psi89%2434 fps98.6%
Rottweil R 901ᴾ<<locked>>100%48,501 psi83%2375 fps98.7%
Shooters World AR Plus<<locked>>92%52,721 psi90%2444 fps98.8%
Shooters World Match Rifleᴾ<<locked>>100%42,177 psi72%2346 fps97.3%
Shooters World Tactical Rifle<<locked>>94%50,299 psi86%2362 fps96.5%
SNPE Vectan BA6 1/2<<locked>>90%52,257 psi89%2136 fps100%
SNPE Vectan SP 10<<locked>>94%51,706 psi88%2444 fps99.2%
SNPE Vectan SP 3<<locked>>96%51,488 psi88%2405 fps99.9%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%48,399 psi82%2313 fps98.7%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%38,653 psi66%2185 fps97.9%
Somchem S321ᴾ<<locked>>100%53,069 psi90%2470 fps97.8%
Somchem S335ᴾ<<locked>>100%46,064 psi78%2306 fps99.1%
Vihtavuori N120<<locked>>90%50,343 psi86%2303 fps100%
Vihtavuori N130<<locked>>98%50,966 psi87%2349 fps100%
Vihtavuori N133ᴾ<<locked>>100%47,369 psi81%2316 fps99.9%
Vihtavuori N135ᴾ<<locked>>100%39,305 psi67%2280 fps99.5%
Vihtavuori N140ᴾ<<locked>>100%41,843 psi71%2287 fps98.1%
Vihtavuori N530ᴾ<<locked>>100%49,255 psi84%2385 fps96.8%
Vihtavuori N540ᴾ<<locked>>100%40,321 psi69%2280 fps97.3%
Winchester 748ᴾ<<locked>>100%46,978 psi80%2415 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%41,350 psi70%2182 fps99.9%
Accurate 2015<<locked>>80%26,542 psi45%1972 fps96.1%
Accurate 2460<<locked>>86%34,287 psi58%2156 fps95.6%
Accurate 2495<<locked>>86%23,525 psi40%1978 fps95.4%
Accurate 2520<<locked>>90%34,011 psi58%2192 fps95%
Accurate 4064<<locked>>96%30,501 psi52%2152 fps95.4%
Accurate LT-30<<locked>>80%35,389 psi60%2070 fps97.4%
Accurate LT-32<<locked>>80%35,795 psi61%2073 fps95.3%
ADI AR 2207<<locked>>80%37,101 psi63%2159 fps100%
ADI AR 221927.6 gr80%32,576 psi55%2126 fps96.3%
ADI Benchmark 8208<<locked>>96%43,004 psi73%2297 fps95.4%
Alliant AR-Comp<<locked>>80%24,555 psi42%1978 fps97.7%
Alliant Power Pro 1200-R<<locked>>94%45,890 psi78%2421 fps95.7%
Alliant Reloder-10x<<locked>>80%30,893 psi53%2077 fps98.6%
Alliant Reloder-7<<locked>>80%38,305 psi65%2159 fps99.9%
Baschieri & Pellagri 106<<locked>>80%33,286 psi57%2057 fps97.1%
Hodgdon Benchmark<<locked>>92%41,133 psi70%2224 fps95.6%
Hodgdon BL-C2<<locked>>96%39,813 psi68%2306 fps95.3%
Hodgdon H322<<locked>>80%29,907 psi51%2067 fps95.3%
Hodgdon H33529.9 gr84%33,852 psi58%2162 fps95.6%
Hodgdon H4198<<locked>>80%39,030 psi66%2146 fps97.7%
Hodgdon TrailBoss<<locked>>80%23,627 psi40%1250 fps100%
IMR 3031<<locked>>86%28,152 psi48%2080 fps95.5%
IMR 4198<<locked>>80%32,851 psi56%2070 fps99.5%
IMR 4227<<locked>>80%44,237 psi75%2198 fps100%
IMR 8208 XBR<<locked>>96%43,004 psi73%2297 fps95.4%
Lovex D073.4<<locked>>82%37,072 psi63%2205 fps95.7%
Lovex D073.5<<locked>>90%39,088 psi67%2241 fps95.5%
Lovex D073.6<<locked>>94%34,316 psi58%2208 fps95.1%
Lovex S053<<locked>>80%43,323 psi74%2159 fps100%
Norma 200<<locked>>80%34,824 psi59%2139 fps99.7%
Norma 201<<locked>>98%41,814 psi71%2283 fps95.2%
Norma 202<<locked>>90%32,169 psi55%2133 fps95.2%
ReloadSwiss RS 14<<locked>>80%23,598 psi40%1283 fps100%
ReloadSwiss RS 36<<locked>>80%44,019 psi75%2231 fps100%
ReloadSwiss RS 40<<locked>>86%35,926 psi61%2175 fps95.1%
Rottweil R 901<<locked>>88%34,185 psi58%2133 fps95.5%
Shooters World AR Plus<<locked>>82%37,072 psi63%2205 fps95.7%
Shooters World Match Rifle<<locked>>94%34,316 psi58%2208 fps95.1%
Shooters World Tactical Rifle<<locked>>90%43,990 psi75%2274 fps95%
SNPE Vectan BA6 1/2<<locked>>80%40,408 psi69%1991 fps100%
SNPE Vectan SP 1028.5 gr80%32,561 psi55%2126 fps95.1%
SNPE Vectan SP 3<<locked>>80%31,401 psi53%2073 fps96.9%
SNPE Vectan Tubal 3000<<locked>>88%33,504 psi57%2073 fps95.4%
SNPE Vectan Tubal 5000<<locked>>92%30,313 psi52%2024 fps95.3%
Somchem S321<<locked>>92%40,422 psi69%2283 fps95.1%
Somchem S335<<locked>>86%30,516 psi52%2034 fps95.4%
Vihtavuori N120<<locked>>80%37,289 psi63%2126 fps100%
Vihtavuori N130<<locked>>80%29,747 psi51%2005 fps98%
Vihtavuori N133<<locked>>80%25,860 psi44%1919 fps95.4%
Vihtavuori N135<<locked>>86%25,541 psi43%1991 fps95.7%
Vihtavuori N140<<locked>>92%32,880 psi56%2123 fps95.7%
Vihtavuori N530<<locked>>96%43,395 psi74%2300 fps95.5%
Vihtavuori N540<<locked>>94%33,301 psi57%2149 fps95.2%
Winchester 748<<locked>>94%38,783 psi66%2277 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 86 powders for .30 BR loaded with the .308 | 170gr | Swift A-Frame. Hodgdon CFE223 delivers the highest muzzle velocity at 2,516 fps; across all powders the maximum-charge window runs from 1,398 fps to 2,516 fps. Accurate 2015 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 54–90 %, 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, 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for .30 BR with the .308 | 170gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2206H, ADI AR 2208, Alliant Reloder- TS 15.5 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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