Load data for .454 Casull Magnum + .452 | 180gr | Rim Rock RNFP Cowboy

Recommended Powder(s): Rottweil P 806, SNPE Vectan BA7 1/2, SNPE Vectan SP 2, Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.452 \| 180gr \| Rim Rock RNFP Cowboy
Manufacturer SKU:	#028
Bullet Weight:	180gr \| 11.7g
Bullet Diameter:	0.452" \| 11.48mm
Bullet Length:	0.501" \| 12.7mm
Caliber:	.454 Casull Magnum load data
Case Length (l3):	1.398" \| 35.5mm
Cartridge Length (C.O.L.):	1.739" \| 44.2mm
Seated Depth:	0.160" \| 4.1mm
Shank Seated Depth:	0.160" \| 4.1mm
Case Capacity:	46.8 Grains of Water \| 3.04 cm³
Primer Size:	Large Pistol Magnum (LPM)
Max. allowed Pressure:	56565 psi \| 3900 bar
LID:	LID_B10653_C777
Last updated:	2025-11-04

Load data for 138 loads in caliber .454 Casull Magnum with .452 | 180gr | Rim Rock RNFP Cowboy bullet and 69 powders such as Rottweil P 806, SNPE Vectan BA7 1/2, SNPE Vectan SP 2, Vihtavuori 3N37, Vihtavuori N350. 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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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%	42119	74%	**68	99%
ADI AP 70N	<<locked>>	75%	50778	90%	**52	100%
ADI APS 350	<<locked>>	87%	49574	88%	**39	100%
ADI APS 450	<<locked>>	88%	50531	89%	**78	100%
ADI AS 30	<<locked>>	88%	50328	89%	**24	100%
ADI AS 50N	<<locked>>	83%	49661	88%	**80	100%
Accurate No. 2	<<locked>>	81%	50169	89%	**68	100%
Accurate No. 5	<<locked>>	66%	50444	89%	**90	100%
Accurate No. 7	<<locked>>	80%	50720	90%	**42	96%
Accurate No. 9	<<locked>>	88%	50560	89%	**29	91%
Accurate Solo 1000	<<locked>>	86%	49951	88%	**60	100%
Accurate Solo 1250	<<locked>>	89%	50038	88%	**13	100%
Accurate TCM	<<locked>>	88%	50343	89%	**26	92%
[Alliant 2400]*	<<locked>>	97%	45324	80%	**86	86%
Alliant BLUE DOT	<<locked>>	97%	41568	73%	**14	92%
Alliant BULLSEYE	<<locked>>	78%	49501	88%	**04	100%
Alliant POWER PISTOL	<<locked>>	86%	50169	89%	**46	100%
Alliant Sport Pistol	<<locked>>	74%	50401	89%	**27	100%
Alliant UNIQUE	<<locked>>	88%	49400	87%	**11	100%
Baschieri & Pellagri 100	<<locked>>	86%	50633	90%	**67	100%
Hodgdon Clays	<<locked>>	85%	49168	87%	**52	100%
Hodgdon HP38	<<locked>>	64%	50720	90%	**06	100%
Hodgdon HS-6	<<locked>>	71%	49588	88%	**47	100%
Hodgdon Longshot	<<locked>>	69%	50836	90%	**54	100%
Hodgdon Universal	<<locked>>	83%	49951	88%	**36	100%
Hodgdon CFE Pistol	<<locked>>	85%	50908	90%	**39	100%
Hodgdon TrailBoss	<<locked>>	95%	16853	30%	**15	100%
Lovex D036	<<locked>>	66%	50386	89%	**90	100%
Lovex D037.1	<<locked>>	80%	50720	90%	**42	96%
Lovex D037.2	<<locked>>	87%	49980	88%	**13	90%
Lovex S011	<<locked>>	73%	49719	88%	**93	100%
Lovex S020	<<locked>>	80%	50488	89%	**52	100%
Maxam CSB 1	<<locked>>	93%	50241	89%	**13	100%
Maxam CSB 2	<<locked>>	88%	49516	88%	**96	100%
Maxam CSB 3	<<locked>>	89%	50140	89%	**96	100%
Maxam CSB 4	<<locked>>	86%	49879	88%	**63	100%
Maxam CSB 5	<<locked>>	83%	49893	88%	**11	100%
[Ramshot Enforcer]*	<<locked>>	97%	45629	81%	**86	87%
Ramshot Silhouette	<<locked>>	73%	49879	88%	**98	100%
Ramshot True Blue	<<locked>>	67%	50415	89%	**37	100%
Ramshot Zip	<<locked>>	64%	50067	89%	**13	100%
ReloadSwiss RS 12	<<locked>>	77%	49516	88%	**90	100%
ReloadSwiss RS 14	<<locked>>	97%	15954	28%	**32	100%
ReloadSwiss RS 20	<<locked>>	89%	50546	89%	**04	100%
ReloadSwiss RS 24	<<locked>>	88%	50560	89%	**49	98%
Rottweil P 801	<<locked>>	73%	49487	87%	**50	100%
Rottweil P 806 👍	<<locked>>	91%	50705	90%	**23	100%
SNPE Vectan A0	<<locked>>	92%	49777	88%	**52	100%
SNPE Vectan BA 9	<<locked>>	84%	49966	88%	**13	100%
SNPE Vectan BA10	<<locked>>	82%	49632	88%	**68	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	96%	50647	90%	**37	100%
SNPE Vectan BA9 1/2	<<locked>>	85%	50328	89%	**26	100%
SNPE Vectan SP 2 👍	<<locked>>	80%	49748	88%	**29	100%
Shooters World Auto Pistol	<<locked>>	66%	50386	89%	**90	100%
Shooters World Heavy Pistol	<<locked>>	87%	49980	88%	**13	90%
Shooters World Major Pistol	<<locked>>	80%	50720	90%	**42	96%
Somchem MP200	<<locked>>	81%	49647	88%	**98	100%
Somchem MS200	<<locked>>	88%	50560	89%	**81	100%
Somchem S221	<<locked>>	74%	50357	89%	**09	99%
Vihtavuori 3N37 👍	<<locked>>	88%	50183	89%	**54	100%
Vihtavuori 3N38	<<locked>>	97%	47384	84%	**80	97%
Vihtavuori N105	<<locked>>	96%	38609	68%	**88	98%
Vihtavuori N310	<<locked>>	71%	49908	88%	**78	100%
Vihtavuori N320	<<locked>>	82%	49821	88%	**73	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	36825	65%	**27	100%
Vihtavuori N330	<<locked>>	83%	50328	89%	**29	100%
Vihtavuori N340	<<locked>>	87%	50749	90%	**75	100%
Vihtavuori N350 👍	<<locked>>	91%	49850	88%	**44	100%
Winchester 231	<<locked>>	72%	50807	90%	**09	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15693	28%	**04	84%
ADI AP 70N	<<locked>>	61%	34476	61%	**35	100%
ADI APS 350	<<locked>>	61%	28935	51%	**73	100%
ADI APS 450	<<locked>>	61%	28065	50%	**89	100%
ADI AS 30	<<locked>>	61%	27296	48%	**22	100%
ADI AS 50N	<<locked>>	61%	29559	52%	**04	100%
Accurate No. 2	<<locked>>	61%	26992	48%	**47	100%
Accurate No. 5	<<locked>>	61%	42409	75%	**78	100%
[Accurate No. 7]*	<<locked>>	61%	24569	43%	**96	83%
[Accurate No. 9]*	<<locked>>	73%	28819	51%	**75	80%
Accurate Solo 1000	<<locked>>	61%	27311	48%	**48	100%
Accurate Solo 1250	<<locked>>	61%	24018	42%	**52	100%
[Accurate TCM]*	<<locked>>	71%	27093	48%	**32	80%
[Alliant 2400]*	<<locked>>	88%	34519	61%	**13	81%
[Alliant BLUE DOT]*	<<locked>>	76%	22771	40%	**30	80%
Alliant BULLSEYE	<<locked>>	61%	30661	54%	**39	100%
Alliant POWER PISTOL	<<locked>>	61%	23685	42%	**73	91%
Alliant Sport Pistol	<<locked>>	61%	35404	63%	**21	100%
Alliant UNIQUE	<<locked>>	61%	24366	43%	**17	100%
Baschieri & Pellagri 100	<<locked>>	61%	26542	47%	**45	100%
Hodgdon Clays	<<locked>>	61%	29443	52%	**86	100%
Hodgdon HP38	<<locked>>	61%	46340	82%	**57	100%
Hodgdon HS-6	<<locked>>	61%	35114	62%	**37	100%
Hodgdon Longshot	<<locked>>	61%	39247	69%	**99	100%
Hodgdon Universal	<<locked>>	61%	28181	50%	**40	100%
Hodgdon CFE Pistol	<<locked>>	61%	26760	47%	**04	100%
Hodgdon TrailBoss	<<locked>>	60%	8195	14%	**0	100%
Lovex D036	<<locked>>	61%	42366	75%	**75	100%
[Lovex D037.1]*	<<locked>>	61%	24569	43%	**96	83%
[Lovex D037.2]*	<<locked>>	72%	29341	52%	**78	80%
Lovex S011	<<locked>>	61%	35244	62%	**06	100%
Lovex S020	<<locked>>	61%	28529	50%	**67	100%
Maxam CSB 1	<<locked>>	61%	22452	40%	**19	100%
Maxam CSB 2	<<locked>>	61%	24468	43%	**55	100%
Maxam CSB 3	<<locked>>	61%	25773	46%	**58	100%
Maxam CSB 4	<<locked>>	61%	27311	48%	**68	100%
Maxam CSB 5	<<locked>>	61%	30443	54%	**62	100%
[Ramshot Enforcer]*	<<locked>>	88%	33475	59%	**83	81%
Ramshot Silhouette	<<locked>>	61%	34766	61%	**01	100%
Ramshot True Blue	<<locked>>	61%	40277	71%	**03	100%
Ramshot Zip	<<locked>>	61%	45701	81%	**67	100%
ReloadSwiss RS 12	<<locked>>	61%	32010	57%	**70	100%
ReloadSwiss RS 14	<<locked>>	60%	7673	14%	**3	99%
ReloadSwiss RS 20	<<locked>>	61%	22669	40%	**85	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	21321	38%	**94	83%
Rottweil P 801	<<locked>>	61%	35897	63%	**80	100%
Rottweil P 806	<<locked>>	61%	17709	31%	**16	91%
SNPE Vectan A0	<<locked>>	61%	22466	40%	**45	100%
SNPE Vectan BA 9	<<locked>>	61%	27021	48%	**07	100%
SNPE Vectan BA10	<<locked>>	61%	31009	55%	**29	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	19464	34%	**02	95%
SNPE Vectan BA9 1/2	<<locked>>	61%	26556	47%	**04	100%
SNPE Vectan SP 2	<<locked>>	61%	26469	47%	**39	95%
Shooters World Auto Pistol	<<locked>>	61%	42366	75%	**75	100%
[Shooters World Heavy Pistol]*	<<locked>>	72%	29341	52%	**78	80%
[Shooters World Major Pistol]*	<<locked>>	61%	24569	43%	**96	83%
Somchem MP200	<<locked>>	61%	27934	49%	**86	100%
Somchem MS200	<<locked>>	61%	25164	44%	**11	100%
Somchem S221	<<locked>>	61%	31401	56%	**17	94%
Vihtavuori 3N37	<<locked>>	61%	22350	40%	**98	97%
[Vihtavuori 3N38]*	<<locked>>	65%	18028	32%	**96	80%
[Vihtavuori N105]*	<<locked>>	68%	15606	28%	**70	81%
Vihtavuori N310	<<locked>>	61%	38595	68%	**47	100%
Vihtavuori N320	<<locked>>	61%	28572	51%	**94	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16534	29%	**93	100%
Vihtavuori N330	<<locked>>	61%	27166	48%	**27	100%
Vihtavuori N340	<<locked>>	61%	24149	43%	**94	100%
Vihtavuori N350	<<locked>>	61%	20566	36%	**48	97%
Winchester 231	<<locked>>	61%	37043	65%	**55	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