Load data for .400 Cor-Bon + .401 | 220gr | H&N KS HS

Recommended Powder(s): Hodgdon HS-6, Rottweil P 806, Vihtavuori 3N37

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.401 \| 220gr \| H&N KS HS
Bullet Weight:	220gr \| 14.3g
Bullet Diameter:	0.401" \| 10.19mm
Bullet Length:	0.705" \| 17.9mm
Caliber:	.400 Cor-Bon load data
Case Length (l3):	0.899" \| 22.8mm
Cartridge Length (C.O.L.):	1.256" \| 31.9mm
Seated Depth:	0.348" \| 8.8mm
Shank Seated Depth:	0.328" \| 8.3mm
Case Capacity:	25.5 Grains of Water \| 1.65 cm³
Primer Size:	Large Pistol (LP)
Max. allowed Pressure:	34954 psi \| 2410 bar
LID:	LID_B7501_C649
Last updated:	2025-12-26

Load data for 120 loads in caliber .400 Cor-Bon with .401 | 220gr | H&N KS HS bullet and 60 powders such as Hodgdon HS-6, Rottweil P 806, Vihtavuori 3N37. 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".
A load must fulfill certain criteria to be listed in the default view below - see "powder criteria to fulfill to be listed".

Our load data might deviate from other sources - see the "most common reasons for deviations".

All loads are based on the bullet and case dimensions shown under "Load Specifications" - see "reloading suggestions" if you deviate.

You can set your specifications in the "Personalized Load Calculator".

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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.
Case Length (Inch)
Case Length (mm)
CaseCapacity (GoW)
Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.

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 AP 100	<<locked>>	96%	30269	87%	**12	97%
ADI AP 70N	<<locked>>	66%	30356	87%	**27	100%
ADI APS 350	<<locked>>	70%	30908	88%	**3	100%
ADI APS 450	<<locked>>	70%	30052	86%	**2	100%
ADI AS 30	<<locked>>	73%	29863	85%	**5	100%
ADI AS 50N	<<locked>>	71%	30298	87%	**8	100%
Accurate No. 2	<<locked>>	73%	30429	87%	**37	100%
[Accurate No. 7]*	<<locked>>	78%	30618	88%	**65	89%
[Accurate No. 9]*	<<locked>>	87%	30864	88%	**55	83%
Accurate Solo 1000	<<locked>>	72%	30211	86%	**8	100%
Accurate Solo 1250	<<locked>>	79%	30168	86%	**10	100%
[Accurate TCM]*	<<locked>>	86%	30168	86%	**42	84%
[Alliant BLUE DOT]*	<<locked>>	96%	27688	79%	**12	86%
Alliant BULLSEYE	<<locked>>	69%	30501	87%	**66	100%
Alliant POWER PISTOL	<<locked>>	81%	31357	90%	**65	97%
Alliant Sport Pistol	<<locked>>	65%	31067	89%	**79	100%
Alliant UNIQUE	<<locked>>	80%	30603	88%	**79	100%
Baschieri & Pellagri 100	<<locked>>	75%	30516	87%	**8	100%
Hodgdon Clays	<<locked>>	70%	31372	90%	**9	100%
Hodgdon HS-6 👍	<<locked>>	66%	30951	89%	**06	99%
Hodgdon Longshot	<<locked>>	63%	30545	87%	**96	100%
Hodgdon Universal	<<locked>>	73%	30356	87%	**27	100%
Hodgdon CFE Pistol	<<locked>>	76%	31053	89%	**30	100%
Hodgdon TrailBoss	<<locked>>	95%	12502	36%	**9	100%
[Lovex D037.1]*	<<locked>>	78%	30618	88%	**65	89%
[Lovex D037.2]*	<<locked>>	86%	30864	88%	**55	83%
Lovex S011	<<locked>>	64%	31067	89%	**1	100%
Lovex S020	<<locked>>	73%	30487	87%	**47	100%
Maxam CSB 1	<<locked>>	83%	31198	89%	**17	100%
Maxam CSB 2	<<locked>>	79%	29878	85%	**17	100%
Maxam CSB 3	<<locked>>	78%	31198	89%	**7	100%
Maxam CSB 4	<<locked>>	73%	30052	86%	**8	100%
Maxam CSB 5	<<locked>>	70%	31096	89%	**5	100%
Ramshot Silhouette	<<locked>>	66%	30632	88%	**79	100%
ReloadSwiss RS 12	<<locked>>	69%	29907	86%	**01	100%
ReloadSwiss RS 14	<<locked>>	97%	11284	32%	**5	100%
ReloadSwiss RS 20	<<locked>>	82%	30821	88%	**79	100%
ReloadSwiss RS 24	<<locked>>	83%	30530	87%	**48	91%
Rottweil P 801	<<locked>>	64%	29965	86%	**4	100%
Rottweil P 806 👍	<<locked>>	91%	30269	87%	**98	100%
SNPE Vectan A0	<<locked>>	82%	30937	89%	**40	100%
SNPE Vectan BA 9	<<locked>>	74%	31053	89%	**17	100%
SNPE Vectan BA10	<<locked>>	66%	30037	86%	**2	100%
SNPE Vectan BA7 1/2	<<locked>>	88%	30342	87%	**83	100%
SNPE Vectan BA9 1/2	<<locked>>	76%	31343	90%	**27	100%
SNPE Vectan SP 2	<<locked>>	77%	30792	88%	**75	98%
[Shooters World Heavy Pistol]*	<<locked>>	86%	30864	88%	**55	83%
[Shooters World Major Pistol]*	<<locked>>	78%	30618	88%	**65	89%
Somchem MP200	<<locked>>	73%	30356	87%	**70	100%
Somchem MS200	<<locked>>	77%	30342	87%	**47	100%
Somchem S221	<<locked>>	70%	30922	88%	**38	95%
Vihtavuori 3N37 👍	<<locked>>	82%	30690	88%	**09	100%
Vihtavuori 3N38	<<locked>>	96%	31241	89%	**52	93%
Vihtavuori N105	<<locked>>	97%	24366	70%	**12	93%
Vihtavuori N320	<<locked>>	72%	30603	88%	**1	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	29298	84%	**2	100%
Vihtavuori N330	<<locked>>	76%	31285	89%	**40	100%
Vihtavuori N340	<<locked>>	78%	30110	86%	**50	100%
Vihtavuori N350	<<locked>>	85%	30908	88%	**09	100%
Winchester 231	<<locked>>	62%	30211	86%	**04	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	62%	11502	33%	**4	81%
ADI AP 70N	<<locked>>	61%	26136	75%	**1	100%
ADI APS 350	<<locked>>	60%	24308	70%	**4	100%
ADI APS 450	<<locked>>	62%	24062	69%	**0	100%
ADI AS 30	<<locked>>	60%	21118	60%	**3	100%
ADI AS 50N	<<locked>>	61%	23047	66%	**6	100%
Accurate No. 2	<<locked>>	61%	20320	58%	**9	99%
[Accurate No. 7]*	<<locked>>	65%	18681	53%	**8	80%
[Accurate No. 9]*	<<locked>>	83%	27354	78%	**09	80%
Accurate Solo 1000	<<locked>>	60%	21640	62%	**0	100%
Accurate Solo 1250	<<locked>>	61%	18333	52%	**0	100%
[Accurate TCM]*	<<locked>>	80%	24772	71%	**66	80%
[Alliant BLUE DOT]*	<<locked>>	85%	20291	58%	**1	80%
Alliant BULLSEYE	<<locked>>	61%	23627	68%	**8	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	16636	48%	**5	87%
Alliant Sport Pistol	<<locked>>	61%	26847	77%	**27	100%
Alliant UNIQUE	<<locked>>	61%	17419	50%	**2	100%
Baschieri & Pellagri 100	<<locked>>	61%	20798	60%	**0	100%
Hodgdon Clays	<<locked>>	60%	24671	71%	**7	100%
Hodgdon HS-6	<<locked>>	61%	26165	75%	**43	98%
Hodgdon Longshot	<<locked>>	60%	28007	80%	**66	100%
Hodgdon Universal	<<locked>>	61%	21002	60%	**2	100%
Hodgdon CFE Pistol	<<locked>>	61%	20117	58%	**9	100%
Hodgdon TrailBoss	<<locked>>	85%	10182	29%	**3	100%
[Lovex D037.1]*	<<locked>>	65%	18681	53%	**8	80%
[Lovex D037.2]*	<<locked>>	82%	27354	78%	**09	80%
Lovex S011	<<locked>>	61%	27949	80%	**1	100%
Lovex S020	<<locked>>	61%	20958	60%	**8	100%
Maxam CSB 1	<<locked>>	60%	16491	47%	**7	100%
Maxam CSB 2	<<locked>>	60%	17027	49%	**3	100%
Maxam CSB 3	<<locked>>	62%	20233	58%	**6	100%
Maxam CSB 4	<<locked>>	61%	21509	62%	**6	100%
Maxam CSB 5	<<locked>>	61%	24656	71%	**9	100%
Ramshot Silhouette	<<locked>>	61%	25599	73%	**20	100%
ReloadSwiss RS 12	<<locked>>	62%	24207	69%	**8	100%
ReloadSwiss RS 14	<<locked>>	87%	9253	26%	**6	100%
ReloadSwiss RS 20	<<locked>>	62%	16360	47%	**3	100%
[ReloadSwiss RS 24]*	<<locked>>	65%	16882	48%	**2	81%
Rottweil P 801	<<locked>>	61%	27224	78%	**5	100%
[Rottweil P 806]*	<<locked>>	61%	9776	28%	**7	85%
SNPE Vectan A0	<<locked>>	61%	17042	49%	**6	99%
SNPE Vectan BA 9	<<locked>>	61%	21089	60%	**9	100%
SNPE Vectan BA10	<<locked>>	61%	26934	77%	**3	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	14054	40%	**7	91%
SNPE Vectan BA9 1/2	<<locked>>	60%	19885	57%	**9	100%
SNPE Vectan SP 2	<<locked>>	62%	17767	51%	**1	91%
[Shooters World Heavy Pistol]*	<<locked>>	82%	27354	78%	**09	80%
[Shooters World Major Pistol]*	<<locked>>	65%	18681	53%	**8	80%
Somchem MP200	<<locked>>	61%	20639	59%	**8	100%
Somchem MS200	<<locked>>	61%	19305	55%	**9	100%
[Somchem S221]*	<<locked>>	60%	21582	62%	**01	89%
Vihtavuori 3N37	<<locked>>	61%	15809	45%	**9	95%
[Vihtavuori 3N38]*	<<locked>>	73%	15693	45%	**6	81%
[Vihtavuori N105]*	<<locked>>	78%	13518	39%	**9	81%
Vihtavuori N320	<<locked>>	61%	21553	62%	**3	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	12517	36%	**2	100%
Vihtavuori N330	<<locked>>	62%	20044	57%	**9	100%
Vihtavuori N340	<<locked>>	61%	17695	51%	**9	100%
Vihtavuori N350	<<locked>>	61%	14562	42%	**0	94%
Winchester 231	<<locked>>	61%	28790	82%	**8	100%

Start Load - Barrel Length: 5.50''

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