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Load data for .401 Win. SL + .406 | 250gr | Barnes FNSP

Recommended Powder(s): ADI AR 2207, Vihtavuori N120

.401 Win. SL + .406 | 250gr | Barnes FNSP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.406 | 250gr | Barnes FNSP
Manufacturer SKU:
40611
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.406" | 10.31mm
Bullet Length:
0.845" | 21.5mm
Caliber:
.401 Win. SL load data
Case Length (l3):
2.005" | 50.9mm
Cartridge Length (C.O.L.):
3.103" | 78.8mm
Seated Depth:
-0.253" | -6.4mm
Shank Seated Depth:
-0.253" | -6.4mm
Case Capacity:
37.1 Grains of Water | 2.41 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
35534 psi | 2450 bar
LID:
LID_B753_C659
Last updated:
2025-01-01

Load data for 16 loads in caliber .401 Win. SL with .406 | 250gr | Barnes FNSP bullet and 8 powders such as ADI AR 2207, Vihtavuori N120. The key underlying parameters are shown in the table above.

  • Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service. 

    Questions regarding the load data: Please read the information in the next tab "Explanations".

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  • We recommend you limit powder range to relevant brands to speed up re-calculation of results

    Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

    Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads,  >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

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Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2207 👍
<<locked>>
90%
31633
89%
**34
98%
[Alliant Reloder-10x]*
<<locked>>
97%
31560
89%
**44
94%
[Alliant Reloder-7]*
<<locked>>
88%
31749
89%
**88
94%
[IMR 4198]*
<<locked>>
92%
31589
89%
**72
94%
Norma 200
<<locked>>
93%
31894
90%
**51
95%
SNPE Vectan BA6 1/2
<<locked>>
85%
31952
90%
**70
100%
Vihtavuori N120 👍
<<locked>>
92%
31966
90%
**08
99%
[Vihtavuori N130]*
<<locked>>
97%
30893
87%
**69
93%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2207
<<locked>>
81%
24250
68%
**67
95%
[Alliant Reloder-10x]*
<<locked>>
90%
25570
72%
**09
90%
[Alliant Reloder-7]*
<<locked>>
81%
25759
72%
**57
91%
[IMR 4198]*
<<locked>>
83%
24685
69%
**08
90%
[Norma 200]*
<<locked>>
83%
22931
65%
**41
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
29066
82%
**21
100%
Vihtavuori N120
<<locked>>
81%
23090
65%
**04
95%
[Vihtavuori N130]*
<<locked>>
91%
26208
74%
**67
90%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber 

V(0) ... muzzle velocity in feet per second (fps) or  meters per second (m/s)

z ... powder burnt in percent

[...] *... 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.

👍  ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.

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

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