Load data for .400 Cor-Bon + .401 | 155gr | Rim Rock SWC

Recommended Powder(s): Alliant UNIQUE, Hodgdon Longshot, Ramshot True Blue, ReloadSwiss RS 20, Somchem MP200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.401 \| 155gr \| Rim Rock SWC
Manufacturer SKU:	#127
Bullet Weight:	155gr \| 10.0g
Bullet Diameter:	0.401" \| 10.19mm
Bullet Length:	0.583" \| 14.8mm
Caliber:	.400 Cor-Bon load data
Case Length (l3):	0.899" \| 22.8mm
Cartridge Length (C.O.L.):	1.256" \| 31.9mm
Seated Depth:	0.226" \| 5.7mm
Shank Seated Depth:	0.226" \| 5.7mm
Case Capacity:	25.5 Grains of Water \| 1.65 cm³
Primer Size:	Large Pistol (LP)
Max. allowed Pressure:	34954 psi \| 2410 bar
LID:	LID_B10589_C649
Last updated:	2025-12-26

Load data for 112 loads in caliber .400 Cor-Bon with .401 | 155gr | Rim Rock SWC bullet and 56 powders such as Alliant UNIQUE, Hodgdon Longshot, Ramshot True Blue, ReloadSwiss RS 20, Somchem MP200. 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".

Go to the bottom of the "Dashboard " page to set the measure system (imperial vs. metric)
No data yet
C.O.L. (Inch)
C.O.L. (mm)
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.
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>>	97%	29240	84%	**71	93%
ADI AP 70N	<<locked>>	68%	31227	89%	**22	100%
ADI APS 350	<<locked>>	71%	31038	89%	**25	100%
ADI APS 450	<<locked>>	72%	30240	87%	**55	100%
ADI AS 30	<<locked>>	76%	31183	89%	**14	100%
ADI AS 50N	<<locked>>	72%	30487	87%	**53	100%
Accurate No. 2	<<locked>>	75%	30719	88%	**22	100%
[Accurate No. 7]*	<<locked>>	80%	30937	89%	**50	84%
Accurate Solo 1000	<<locked>>	74%	30661	88%	**34	100%
Accurate Solo 1250	<<locked>>	81%	30777	88%	**02	100%
Alliant BULLSEYE	<<locked>>	72%	31372	90%	**71	100%
Alliant POWER PISTOL	<<locked>>	82%	30719	88%	**40	93%
Alliant Sport Pistol	<<locked>>	67%	31212	89%	**71	100%
Alliant UNIQUE 👍	<<locked>>	83%	31024	89%	**81	100%
Baschieri & Pellagri 100	<<locked>>	77%	30879	88%	**50	100%
Hodgdon Clays	<<locked>>	71%	31357	90%	**45	100%
Hodgdon HS-6	<<locked>>	68%	30980	89%	**91	97%
Hodgdon Longshot 👍	<<locked>>	65%	31227	89%	**98	99%
Hodgdon Universal	<<locked>>	76%	31227	89%	**22	100%
Hodgdon CFE Pistol	<<locked>>	78%	31357	90%	**19	100%
Hodgdon TrailBoss	<<locked>>	95%	12270	35%	**9	100%
[Lovex D037.1]*	<<locked>>	80%	30937	89%	**50	84%
Lovex S011	<<locked>>	65%	30240	87%	**60	100%
Lovex S020	<<locked>>	74%	30052	86%	**22	100%
Maxam CSB 1	<<locked>>	85%	31082	89%	**99	100%
Maxam CSB 2	<<locked>>	81%	30008	86%	**02	100%
Maxam CSB 3	<<locked>>	80%	31212	89%	**76	100%
Maxam CSB 4	<<locked>>	76%	31241	89%	**57	100%
Maxam CSB 5	<<locked>>	71%	30792	88%	**98	100%
Ramshot Silhouette	<<locked>>	68%	30647	88%	**68	100%
Ramshot True Blue 👍	<<locked>>	63%	30589	88%	**81	99%
ReloadSwiss RS 12	<<locked>>	71%	30893	88%	**96	100%
ReloadSwiss RS 14	<<locked>>	96%	11110	32%	**2	100%
ReloadSwiss RS 20 👍	<<locked>>	85%	31053	89%	**78	100%
[ReloadSwiss RS 24]*	<<locked>>	86%	31053	89%	**44	87%
Rottweil P 801	<<locked>>	65%	30255	87%	**53	100%
Rottweil P 806	<<locked>>	94%	31154	89%	**09	98%
SNPE Vectan A0	<<locked>>	84%	30951	89%	**25	100%
SNPE Vectan BA 9	<<locked>>	75%	30516	87%	**93	100%
SNPE Vectan BA10	<<locked>>	67%	30240	86%	**55	100%
SNPE Vectan BA7 1/2	<<locked>>	90%	30719	88%	**65	98%
SNPE Vectan BA9 1/2	<<locked>>	77%	30240	87%	**02	100%
SNPE Vectan SP 2	<<locked>>	80%	31082	89%	**76	95%
[Shooters World Major Pistol]*	<<locked>>	80%	30937	89%	**50	84%
Somchem MP200 👍	<<locked>>	76%	31343	90%	**71	100%
Somchem MS200	<<locked>>	80%	31024	89%	**48	100%
Somchem S221	<<locked>>	72%	31154	89%	**21	91%
Vihtavuori 3N37	<<locked>>	84%	31386	90%	**14	99%
[Vihtavuori 3N38]*	<<locked>>	97%	30110	86%	**17	88%
[Vihtavuori N105]*	<<locked>>	96%	22307	64%	**25	86%
Vihtavuori N320	<<locked>>	73%	30313	87%	**57	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	27717	79%	**48	100%
Vihtavuori N330	<<locked>>	77%	31111	89%	**25	100%
Vihtavuori N340	<<locked>>	80%	30589	88%	**45	100%
Vihtavuori N350	<<locked>>	87%	30661	88%	**94	99%
Winchester 231	<<locked>>	64%	30850	88%	**93	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	70%	14620	42%	**47	81%
ADI AP 70N	<<locked>>	61%	24787	71%	**30	100%
ADI APS 350	<<locked>>	61%	24453	70%	**40	100%
ADI APS 450	<<locked>>	62%	23293	67%	**56	100%
ADI AS 30	<<locked>>	60%	20885	60%	**60	100%
ADI AS 50N	<<locked>>	61%	22684	65%	**35	100%
Accurate No. 2	<<locked>>	61%	19754	57%	**32	97%
[Accurate No. 7]*	<<locked>>	75%	25657	73%	**55	81%
Accurate Solo 1000	<<locked>>	61%	21596	62%	**99	100%
Accurate Solo 1250	<<locked>>	61%	17564	50%	**79	100%
Alliant BULLSEYE	<<locked>>	61%	22785	65%	**24	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	16186	46%	**25	82%
Alliant Sport Pistol	<<locked>>	61%	25875	74%	**83	100%
Alliant UNIQUE	<<locked>>	61%	17303	50%	**19	98%
Baschieri & Pellagri 100	<<locked>>	61%	20015	57%	**86	100%
Hodgdon Clays	<<locked>>	61%	24845	71%	**56	100%
Hodgdon HS-6	<<locked>>	61%	24627	70%	**83	95%
Hodgdon Longshot	<<locked>>	61%	27325	78%	**35	98%
Hodgdon Universal	<<locked>>	61%	20885	60%	**55	100%
Hodgdon CFE Pistol	<<locked>>	61%	19087	55%	**22	100%
Hodgdon TrailBoss	<<locked>>	60%	5918	17%	**9	98%
[Lovex D037.1]*	<<locked>>	75%	25657	73%	**55	81%
Lovex S011	<<locked>>	61%	26629	76%	**11	100%
Lovex S020	<<locked>>	61%	19812	57%	**52	100%
Maxam CSB 1	<<locked>>	60%	15983	46%	**37	100%
Maxam CSB 2	<<locked>>	60%	16375	47%	**76	100%
Maxam CSB 3	<<locked>>	60%	18869	54%	**83	100%
Maxam CSB 4	<<locked>>	62%	21248	61%	**09	100%
Maxam CSB 5	<<locked>>	61%	23467	67%	**99	100%
Ramshot Silhouette	<<locked>>	61%	24816	71%	**73	99%
Ramshot True Blue	<<locked>>	61%	28601	82%	**48	98%
ReloadSwiss RS 12	<<locked>>	62%	23250	67%	**84	100%
ReloadSwiss RS 14	<<locked>>	61%	5656	16%	**6	94%
ReloadSwiss RS 20	<<locked>>	62%	15592	45%	**93	98%
[ReloadSwiss RS 24]*	<<locked>>	75%	21973	63%	**60	80%
Rottweil P 801	<<locked>>	61%	26963	77%	**07	100%
[Rottweil P 806]*	<<locked>>	64%	10834	31%	**24	80%
SNPE Vectan A0	<<locked>>	61%	16795	48%	**63	97%
SNPE Vectan BA 9	<<locked>>	61%	20073	57%	**22	100%
SNPE Vectan BA10	<<locked>>	61%	25396	73%	**86	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	13779	39%	**04	86%
SNPE Vectan BA9 1/2	<<locked>>	61%	19464	56%	**22	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	16433	47%	**58	84%
[Shooters World Major Pistol]*	<<locked>>	75%	25657	73%	**55	81%
Somchem MP200	<<locked>>	61%	20160	58%	**68	98%
Somchem MS200	<<locked>>	60%	18115	52%	**09	99%
[Somchem S221]*	<<locked>>	61%	20856	60%	**20	83%
[Vihtavuori 3N37]*	<<locked>>	61%	15011	43%	**73	89%
[Vihtavuori 3N38]*	<<locked>>	84%	20972	60%	**40	81%
[Vihtavuori N105]*	<<locked>>	88%	17666	51%	**98	80%
Vihtavuori N320	<<locked>>	61%	20972	60%	**19	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	11922	34%	**6	100%
Vihtavuori N330	<<locked>>	60%	18420	53%	**25	100%
Vihtavuori N340	<<locked>>	61%	17187	49%	**93	98%
[Vihtavuori N350]*	<<locked>>	60%	13532	39%	**24	88%
Winchester 231	<<locked>>	61%	27412	78%	**43	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