Load data for .454 Casull Magnum + .452 | 160gr | Rim Rock RNFP Cowboy

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.452 \| 160gr \| Rim Rock RNFP Cowboy
Manufacturer SKU:	#027
Bullet Weight:	160gr \| 10.4g
Bullet Diameter:	0.452" \| 11.48mm
Bullet Length:	0.443" \| 11.3mm
Caliber:	.454 Casull Magnum load data
Case Length (l3):	1.398" \| 35.5mm
Cartridge Length (C.O.L.):	1.739" \| 44.2mm
Seated Depth:	0.102" \| 2.6mm
Shank Seated Depth:	0.102" \| 2.6mm
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_B10652_C777
Last updated:	2025-11-04

Load data for 138 loads in caliber .454 Casull Magnum with .452 | 160gr | Rim Rock RNFP Cowboy bullet and 69 powders such as Alliant UNIQUE, Rottweil P 806, SNPE Vectan BA7 1/2, 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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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%	39914	71%	**50	98%
ADI AP 70N	<<locked>>	76%	49850	88%	**54	100%
ADI APS 350	<<locked>>	89%	50894	90%	**70	101%
ADI APS 450	<<locked>>	90%	50763	90%	**99	100%
ADI AS 30	<<locked>>	90%	50502	89%	**45	100%
ADI AS 50N	<<locked>>	84%	50357	89%	**98	100%
Accurate No. 2	<<locked>>	81%	49284	87%	**86	100%
Accurate No. 5	<<locked>>	67%	50517	89%	**05	100%
Accurate No. 7	<<locked>>	81%	50125	89%	**57	94%
[Accurate No. 9]*	<<locked>>	89%	49995	88%	**37	89%
Accurate Solo 1000	<<locked>>	88%	50691	90%	**95	100%
Accurate Solo 1250	<<locked>>	90%	49647	88%	**44	100%
Accurate TCM	<<locked>>	90%	50604	89%	**34	90%
[Alliant 2400]*	<<locked>>	96%	42989	76%	**59	83%
Alliant BLUE DOT	<<locked>>	97%	40118	71%	**86	90%
Alliant BULLSEYE	<<locked>>	80%	50154	89%	**42	100%
Alliant POWER PISTOL	<<locked>>	88%	50314	89%	**60	99%
Alliant Sport Pistol	<<locked>>	74%	49371	87%	**46	100%
Alliant UNIQUE 👍	<<locked>>	90%	50125	89%	**55	100%
Baschieri & Pellagri 100	<<locked>>	86%	49269	87%	**72	100%
Hodgdon Clays	<<locked>>	87%	50473	89%	**86	100%
Hodgdon HP38	<<locked>>	64%	49211	87%	**04	100%
Hodgdon HS-6	<<locked>>	72%	50154	89%	**75	100%
Hodgdon Longshot	<<locked>>	69%	50676	90%	**69	100%
Hodgdon Universal	<<locked>>	84%	50618	89%	**73	100%
Hodgdon CFE Pistol	<<locked>>	86%	50836	90%	**57	100%
Hodgdon TrailBoss	<<locked>>	96%	16520	29%	**98	100%
Lovex D036	<<locked>>	67%	50444	89%	**05	100%
Lovex D037.1	<<locked>>	81%	50125	89%	**57	94%
[Lovex D037.2]*	<<locked>>	88%	49995	88%	**37	89%
Lovex S011	<<locked>>	75%	50444	89%	**24	100%
Lovex S020	<<locked>>	80%	49197	87%	**60	100%
Maxam CSB 1	<<locked>>	94%	49806	88%	**41	100%
Maxam CSB 2	<<locked>>	90%	50227	89%	**31	100%
Maxam CSB 3	<<locked>>	90%	50415	89%	**21	100%
Maxam CSB 4	<<locked>>	87%	50560	89%	**95	100%
Maxam CSB 5	<<locked>>	84%	50589	89%	**36	100%
[Ramshot Enforcer]*	<<locked>>	96%	43395	77%	**59	84%
Ramshot Silhouette	<<locked>>	74%	50024	88%	**39	100%
Ramshot True Blue	<<locked>>	68%	49980	88%	**62	100%
Ramshot Zip	<<locked>>	65%	49864	88%	**27	100%
ReloadSwiss RS 12	<<locked>>	79%	50473	89%	**14	100%
ReloadSwiss RS 14	<<locked>>	95%	14924	26%	**81	100%
ReloadSwiss RS 20	<<locked>>	90%	50154	89%	**19	100%
ReloadSwiss RS 24	<<locked>>	89%	50067	89%	**44	96%
Rottweil P 801	<<locked>>	74%	50430	89%	**75	100%
Rottweil P 806 👍	<<locked>>	92%	50792	90%	**41	100%
SNPE Vectan A0	<<locked>>	93%	49763	88%	**86	100%
SNPE Vectan BA 9	<<locked>>	85%	49908	88%	**47	100%
SNPE Vectan BA10	<<locked>>	83%	50763	90%	**99	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	96%	49284	87%	**42	100%
SNPE Vectan BA9 1/2	<<locked>>	87%	50502	89%	**50	100%
SNPE Vectan SP 2	<<locked>>	82%	50183	89%	**60	100%
Shooters World Auto Pistol	<<locked>>	67%	50444	89%	**05	100%
[Shooters World Heavy Pistol]*	<<locked>>	88%	49995	88%	**37	89%
Shooters World Major Pistol	<<locked>>	81%	50125	89%	**57	94%
Somchem MP200	<<locked>>	83%	50734	90%	**46	100%
Somchem MS200	<<locked>>	89%	50821	90%	**03	100%
Somchem S221	<<locked>>	75%	49966	88%	**08	98%
Vihtavuori 3N37 👍	<<locked>>	88%	49719	88%	**78	100%
Vihtavuori 3N38	<<locked>>	97%	45687	81%	**59	96%
Vihtavuori N105	<<locked>>	96%	37144	66%	**70	96%
Vihtavuori N310	<<locked>>	72%	49603	88%	**96	100%
Vihtavuori N320	<<locked>>	84%	50401	89%	**88	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	36114	64%	**16	100%
Vihtavuori N330	<<locked>>	84%	50212	89%	**64	100%
Vihtavuori N340	<<locked>>	88%	50633	90%	**16	100%
Vihtavuori N350 👍	<<locked>>	92%	50401	89%	**75	100%
Winchester 231	<<locked>>	73%	50647	90%	**44	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15185	27%	**70	82%
ADI AP 70N	<<locked>>	61%	33417	59%	**31	100%
ADI APS 350	<<locked>>	61%	28384	50%	**58	100%
ADI APS 450	<<locked>>	61%	27354	48%	**78	100%
ADI AS 30	<<locked>>	61%	26324	47%	**07	100%
ADI AS 50N	<<locked>>	61%	28776	51%	**03	100%
Accurate No. 2	<<locked>>	61%	26252	46%	**26	100%
Accurate No. 5	<<locked>>	61%	40582	72%	**73	99%
[Accurate No. 7]*	<<locked>>	62%	24511	43%	**75	81%
[Accurate No. 9]*	<<locked>>	77%	31749	56%	**29	80%
Accurate Solo 1000	<<locked>>	61%	26847	47%	**40	100%
Accurate Solo 1250	<<locked>>	61%	23293	41%	**40	100%
[Accurate TCM]*	<<locked>>	75%	29776	53%	**83	80%
[Alliant 2400]*	<<locked>>	92%	37811	67%	**57	80%
[Alliant BLUE DOT]*	<<locked>>	80%	24758	44%	**75	80%
Alliant BULLSEYE	<<locked>>	61%	29965	53%	**27	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	22655	40%	**29	89%
Alliant Sport Pistol	<<locked>>	61%	34301	61%	**16	100%
Alliant UNIQUE	<<locked>>	61%	23250	41%	**86	100%
Baschieri & Pellagri 100	<<locked>>	61%	25730	45%	**37	100%
Hodgdon Clays	<<locked>>	61%	28863	51%	**85	100%
Hodgdon HP38	<<locked>>	61%	45121	80%	**62	100%
Hodgdon HS-6	<<locked>>	61%	34214	60%	**32	99%
Hodgdon Longshot	<<locked>>	61%	37652	67%	**98	100%
Hodgdon Universal	<<locked>>	61%	27601	49%	**32	100%
Hodgdon CFE Pistol	<<locked>>	61%	26005	46%	**96	100%
Hodgdon TrailBoss	<<locked>>	61%	7977	14%	**6	100%
Lovex D036	<<locked>>	61%	40669	72%	**73	99%
[Lovex D037.1]*	<<locked>>	62%	24511	43%	**75	81%
[Lovex D037.2]*	<<locked>>	76%	31749	56%	**29	80%
Lovex S011	<<locked>>	61%	33852	60%	**91	100%
Lovex S020	<<locked>>	61%	27630	49%	**62	100%
Maxam CSB 1	<<locked>>	61%	21712	38%	**94	100%
Maxam CSB 2	<<locked>>	61%	23902	42%	**47	100%
Maxam CSB 3	<<locked>>	61%	25063	44%	**40	100%
Maxam CSB 4	<<locked>>	61%	26701	47%	**53	100%
Maxam CSB 5	<<locked>>	61%	29240	52%	**47	100%
[Ramshot Enforcer]*	<<locked>>	92%	36796	65%	**60	81%
Ramshot Silhouette	<<locked>>	61%	33446	59%	**06	100%
Ramshot True Blue	<<locked>>	61%	39291	69%	**01	100%
Ramshot Zip	<<locked>>	61%	44425	79%	**72	100%
ReloadSwiss RS 12	<<locked>>	61%	31256	55%	**62	100%
ReloadSwiss RS 14	<<locked>>	61%	7440	13%	**2	97%
ReloadSwiss RS 20	<<locked>>	61%	21756	38%	**53	100%
[ReloadSwiss RS 24]*	<<locked>>	62%	20871	37%	**67	80%
Rottweil P 801	<<locked>>	61%	34954	62%	**81	100%
[Rottweil P 806]*	<<locked>>	61%	16578	29%	**68	88%
SNPE Vectan A0	<<locked>>	61%	21959	39%	**27	100%
SNPE Vectan BA 9	<<locked>>	61%	26324	47%	**03	100%
SNPE Vectan BA10	<<locked>>	61%	30589	54%	**30	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	18681	33%	**68	92%
SNPE Vectan BA9 1/2	<<locked>>	61%	26020	46%	**93	100%
SNPE Vectan SP 2	<<locked>>	61%	25063	44%	**91	92%
Shooters World Auto Pistol	<<locked>>	61%	40669	72%	**73	99%
[Shooters World Heavy Pistol]*	<<locked>>	76%	31749	56%	**29	80%
[Shooters World Major Pistol]*	<<locked>>	62%	24511	43%	**75	81%
Somchem MP200	<<locked>>	61%	26890	48%	**68	100%
Somchem MS200	<<locked>>	61%	24569	43%	**93	100%
Somchem S221	<<locked>>	61%	30371	54%	**96	92%
Vihtavuori 3N37	<<locked>>	61%	21727	38%	**67	96%
[Vihtavuori 3N38]*	<<locked>>	69%	19609	35%	**27	80%
[Vihtavuori N105]*	<<locked>>	73%	17448	31%	**98	80%
Vihtavuori N310	<<locked>>	61%	37855	67%	**39	100%
Vihtavuori N320	<<locked>>	61%	27731	49%	**80	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16346	29%	**71	100%
Vihtavuori N330	<<locked>>	61%	26063	46%	**09	100%
Vihtavuori N340	<<locked>>	61%	23569	42%	**73	100%
Vihtavuori N350	<<locked>>	61%	19667	35%	**14	95%
Winchester 231	<<locked>>	61%	36318	64%	**50	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