Load data for .400 Cor-Bon + .401 | 180gr | Geco HOLLOW POINT

.400 Cor-Bon cartridge drawing
Geco logo

Load Specifications

Bullet Manufacturer:Geco
Bullet Weight:180 gr
Bullet Diameter:0.401"
Bullet Length:<<locked>>
Case Length (l3):0.899"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:25.46 Grains of Water
Primer Size:Large Pistol (LP)
Barrel Length:5"
Max. allowed Pressure:35,000 psi

Load data in caliber .400 Cor-Bon with .401 | 180gr | Geco HOLLOW POINT bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, Vihtavuori N350 and Alliant Herco.

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 ≥ 60% and propellant combustion ≥ 80%. 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: 5"

PowderChargeFRMaxP%V(0)z
Accurate No. 2²<<locked>>72%29,298 psi84%1152 fps99.9%
Accurate Solo 1000²<<locked>>72%29,704 psi85%1079 fps100%
Accurate Solo 1250<<locked>>80%30,792 psi88%1148 fps100%
ADI AP 100*<<locked>>96%29,849 psi85%1230 fps94.3%
ADI AP 70N²<<locked>>64%29,182 psi83%1142 fps100%
ADI APS 350²<<locked>>68%29,138 psi83%971 fps100%
ADI APS 450²<<locked>>72%30,632 psi88%1020 fps100%
ADI AS 30²<<locked>>72%29,515 psi84%1050 fps100%
ADI AS 50N²<<locked>>72%31,285 psi89%1112 fps100%
Alliant BE-86²<<locked>>76%28,689 psi82%1115 fps100%
Alliant BULLSEYE²<<locked>>68%29,254 psi84%1184 fps100%
Alliant Green Dot²<<locked>>72%28,427 psi81%1079 fps100%
Alliant Herco<<locked>>96%31,082 psi89%1217 fps100%
Alliant POWER PISTOL*<<locked>>80%29,965 psi86%1270 fps93.6%
Alliant RED DOT²<<locked>>76%30,835 psi88%1083 fps100%
Alliant Sport Pistol²<<locked>>64%29,356 psi84%1188 fps100%
Alliant UNIQUE<<locked>>80%30,603 psi87%1214 fps100%
Baschieri & Pellagri 100²<<locked>>76%30,966 psi88%1102 fps100%
Baschieri & Pellagri 102 Pistol<<locked>>96%31,183 psi89%1122 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>72%31,096 psi89%1129 fps100%
Hodgdon Clays²<<locked>>68%29,530 psi84%988 fps100%
Hodgdon HS-6²<<locked>>64%28,485 psi81%1198 fps97.1%
Hodgdon TrailBossᴾ<<locked>>100%14,344 psi41%827 fps100%
Hodgdon Universal²<<locked>>72%29,994 psi86%1152 fps100%
Lovex S011²<<locked>>64%30,124 psi86%1112 fps100%
Lovex S020²<<locked>>72%30,284 psi87%1171 fps100%
Maxam CSB 1<<locked>>84%31,401 psi90%1152 fps100%
Maxam CSB 2<<locked>>80%30,443 psi87%1148 fps100%
Maxam CSB 3²<<locked>>76%29,805 psi85%1112 fps100%
Maxam CSB 4²<<locked>>76%31,531 psi90%1112 fps100%
Maxam CSB 5²<<locked>>68%29,341 psi84%1040 fps100%
Ramshot Silhouette²<<locked>>64%28,340 psi81%1178 fps100%
ReloadSwiss RS 12²<<locked>>68%29,443 psi84%1122 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%13,024 psi37%827 fps100%
ReloadSwiss RS 20<<locked>>80%28,660 psi82%1188 fps100%
ReloadSwiss RS 24*<<locked>>84%31,082 psi89%1280 fps88.1%
Rottweil P 801²<<locked>>64%30,226 psi86%1099 fps100%
Rottweil P 806<<locked>>92%31,647 psi90%1335 fps98.8%
SNPE Vectan A0<<locked>>84%31,401 psi90%1178 fps100%
SNPE Vectan A1²<<locked>>72%29,501 psi84%1115 fps100%
SNPE Vectan BA 9²<<locked>>72%28,471 psi81%1119 fps100%
SNPE Vectan BA10²<<locked>>68%31,488 psi90%1030 fps100%
SNPE Vectan BA7 1/2<<locked>>88%30,342 psi87%1207 fps98.4%
SNPE Vectan BA9 1/2²<<locked>>76%30,821 psi88%1155 fps100%
SNPE Vectan SP 2²<<locked>>76%29,472 psi84%1280 fps95.4%
Somchem MP200²<<locked>>72%29,109 psi83%1181 fps100%
Somchem MS200²<<locked>>76%29,269 psi84%1165 fps100%
Somchem S221*²<<locked>>68%28,776 psi82%1224 fps90.3%
Vihtavuori 3N37<<locked>>80%29,167 psi83%1214 fps98.8%
Vihtavuori 3N38*<<locked>>96%29,124 psi83%1243 fps88%
Vihtavuori N105*ᴾ<<locked>>100%26,556 psi76%1257 fps90.7%
Vihtavuori N320²<<locked>>72%31,154 psi89%1115 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%27,064 psi77%1004 fps100%
Vihtavuori N330²<<locked>>72%29,327 psi84%1148 fps100%
Vihtavuori N340<<locked>>80%31,604 psi90%1198 fps100%
Vihtavuori N350<<locked>>88%31,285 psi89%1240 fps99.4%
Winchester AutoComp <<locked>>80%29,834 psi85%1155 fps100%

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

Start Load - Barrel Length: 5"

PowderChargeFRMaxP%V(0)z
Accurate No. 2²<<locked>>60%20,262 psi58%1010 fps97.9%
Accurate Solo 1000²<<locked>>60%21,292 psi61%961 fps100%
Accurate Solo 1250²<<locked>>60%18,086 psi52%958 fps100%
ADI AP 100*²<<locked>>76%17,912 psi51%1007 fps85.7%
ADI AP 70N²<<locked>>60%25,512 psi73%1089 fps100%
ADI APS 350²<<locked>>60%23,917 psi68%906 fps100%
ADI APS 450²<<locked>>60%22,611 psi65%919 fps100%
ADI AS 30²<<locked>>60%21,625 psi62%942 fps100%
ADI AS 50N²<<locked>>60%22,727 psi65%997 fps100%
Alliant BE-86²<<locked>>60%18,217 psi52%958 fps100%
Alliant BULLSEYE²<<locked>>60%23,351 psi67%1093 fps100%
Alliant Green Dot²<<locked>>60%21,103 psi60%974 fps100%
Alliant Herco*²5.8 gr60%12,908 psi37%869 fps94.7%
Alliant POWER PISTOL*²<<locked>>64%19,029 psi54%1060 fps85.7%
Alliant RED DOT²<<locked>>60%20,436 psi58%942 fps100%
Alliant Sport Pistol²<<locked>>60%26,368 psi75%1142 fps100%
Alliant UNIQUE²<<locked>>60%17,825 psi51%994 fps98.4%
Baschieri & Pellagri 100²<<locked>>60%20,465 psi58%961 fps100%
Baschieri & Pellagri 102 Pistol²<<locked>>60%12,763 psi36%837 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>60%21,567 psi62%1004 fps100%
Hodgdon Clays²<<locked>>60%24,221 psi69%922 fps100%
Hodgdon HS-6²<<locked>>60%24,831 psi71%1138 fps95.5%
Hodgdon TrailBoss²<<locked>>60%6,628 psi19%607 fps99.4%
Hodgdon Universal²<<locked>>60%21,509 psi61%1027 fps100%
Lovex S011²<<locked>>60%26,818 psi77%1070 fps100%
Lovex S020²<<locked>>60%20,813 psi59%1033 fps100%
Maxam CSB 1²<<locked>>60%16,824 psi48%928 fps100%
Maxam CSB 2²<<locked>>60%17,927 psi51%968 fps100%
Maxam CSB 3²<<locked>>60%19,131 psi55%955 fps100%
Maxam CSB 4²<<locked>>60%20,755 psi59%965 fps100%
Maxam CSB 5²<<locked>>60%23,511 psi67%965 fps100%
Ramshot Silhouette²<<locked>>60%25,077 psi72%1129 fps99.6%
ReloadSwiss RS 12²<<locked>>60%23,438 psi67%1043 fps100%
ReloadSwiss RS 14²<<locked>>60%6,324 psi18%604 fps96.2%
ReloadSwiss RS 20²<<locked>>60%15,751 psi45%965 fps98.9%
ReloadSwiss RS 24*<<locked>>80%27,296 psi78%1217 fps85.8%
Rottweil P 801²<<locked>>60%27,122 psi77%1060 fps100%
Rottweil P 806*²10.5 gr68%14,069 psi40%1001 fps87%
SNPE Vectan A0²<<locked>>60%17,100 psi49%945 fps97.9%
SNPE Vectan A1²<<locked>>60%20,972 psi60%994 fps100%
SNPE Vectan BA 9²<<locked>>60%20,175 psi58%991 fps100%
SNPE Vectan BA10²<<locked>>60%25,643 psi73%961 fps100%
SNPE Vectan BA7 1/2*²<<locked>>60%14,069 psi40%896 fps87.5%
SNPE Vectan BA9 1/2²<<locked>>60%19,943 psi57%994 fps100%
SNPE Vectan SP 2*²<<locked>>60%17,172 psi49%1040 fps86.3%
Somchem MP200²<<locked>>60%20,334 psi58%1033 fps98.7%
Somchem MS200²<<locked>>60%19,029 psi54%994 fps99.4%
Somchem S221*²<<locked>>60%21,843 psi62%1099 fps85.4%
Vihtavuori 3N37*²<<locked>>60%15,954 psi46%968 fps91.2%
Vihtavuori 3N38*<<locked>>92%26,034 psi74%1194 fps86%
Vihtavuori N105*<<locked>>92%20,943 psi60%1148 fps85.9%
Vihtavuori N320²<<locked>>60%22,205 psi63%1001 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%10,892 psi31%738 fps100%
Vihtavuori N330²<<locked>>60%20,537 psi59%1024 fps100%
Vihtavuori N340²<<locked>>60%18,188 psi52%984 fps98.8%
Vihtavuori N350*²6.7 gr60%13,822 psi39%912 fps89.2%
Winchester AutoComp ²<<locked>>60%17,143 psi49%951 fps99.9%

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

* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

² fill rate low - you might want to consider using a filler to ensure proper ignition.

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 57 powders for .400 Cor-Bon loaded with the .401 | 180gr | Geco HOLLOW POINT. Rottweil P 806 delivers the highest muzzle velocity at 1,335 fps; across all powders the maximum-charge window runs from 827 fps to 1,335 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 22 of the 57 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (241 MPa), the top charges use 37–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N105 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. Rottweil P 806, Vihtavuori N350, Alliant Herco rank at the top here: for .400 Cor-Bon with the .401 | 180gr | Geco HOLLOW POINT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, Alliant POWER PISTOL, ReloadSwiss RS 24 burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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.

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