Load data for .44 Auto Mag. + .430 | 200gr | Rim Rock RNFP Cowboy

Recommended Powder(s): Hodgdon HS-6, Rottweil P 806, SNPE Vectan A0

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.43 \| 200gr \| Rim Rock RNFP Cowboy
Manufacturer SKU:	#020
Bullet Weight:	200gr \| 13.0g
Bullet Diameter:	0.430" \| 10.92mm
Bullet Length:	0.587" \| 14.9mm
Caliber:	.44 Auto Mag. load data
Case Length (l3):	1.298" \| 33.0mm
Cartridge Length (C.O.L.):	1.362" \| 34.6mm
Seated Depth:	0.523" \| 13.3mm
Shank Seated Depth:	0.523" \| 13.3mm
Case Capacity:	39.0 Grains of Water \| 2.53 cm³
Primer Size:	Large Pistol Magnum (LPM)
Max. allowed Pressure:	36985 psi \| 2550 bar
LID:	LID_B10614_C710
Last updated:	2025-01-01

Load data for 108 loads in caliber .44 Auto Mag. with .43 | 200gr | Rim Rock RNFP Cowboy bullet and 54 powders such as Hodgdon HS-6, Rottweil P 806, SNPE Vectan A0. 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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Min z (%)
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Safety Buffer (%)
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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.

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>>	95%	29791	81%	**76	95%
ADI AP 70N	<<locked>>	68%	32343	87%	**27	100%
ADI APS 350	<<locked>>	72%	32967	89%	**53	100%
ADI APS 450	<<locked>>	74%	33054	89%	**86	100%
ADI AS 30	<<locked>>	77%	32866	89%	**29	100%
ADI AS 50N	<<locked>>	72%	31894	86%	**61	100%
Accurate No. 2	<<locked>>	74%	31633	86%	**27	100%
[Accurate No. 7]*	<<locked>>	78%	31604	85%	**52	87%
Accurate Solo 1000	<<locked>>	76%	33170	90%	**61	100%
Accurate Solo 1250	<<locked>>	81%	31865	86%	**01	100%
[Alliant BLUE DOT]*	<<locked>>	96%	28674	78%	**96	84%
Alliant BULLSEYE	<<locked>>	71%	32445	88%	**76	100%
Alliant POWER PISTOL	<<locked>>	82%	32576	88%	**65	96%
Alliant UNIQUE	<<locked>>	83%	32909	89%	**93	100%
Baschieri & Pellagri 100	<<locked>>	78%	33214	90%	**68	100%
Hodgdon Clays	<<locked>>	69%	30835	83%	**40	100%
Hodgdon HS-6 👍	<<locked>>	67%	32605	88%	**06	99%
Hodgdon Longshot	<<locked>>	65%	33040	89%	**06	100%
Hodgdon Universal	<<locked>>	74%	31183	84%	**14	100%
Hodgdon TrailBoss	<<locked>>	95%	13039	35%	**7	100%
[Lovex D037.1]*	<<locked>>	78%	31604	85%	**52	87%
Lovex S011	<<locked>>	66%	32793	89%	**81	100%
Lovex S020	<<locked>>	73%	31111	84%	**27	100%
Maxam CSB 1	<<locked>>	84%	32169	87%	**01	100%
Maxam CSB 2	<<locked>>	80%	31459	85%	**07	100%
Maxam CSB 3	<<locked>>	79%	32474	88%	**84	100%
Maxam CSB 4	<<locked>>	76%	32706	88%	**68	100%
Maxam CSB 5	<<locked>>	70%	31415	85%	**06	100%
Ramshot Silhouette	<<locked>>	67%	32010	87%	**73	100%
Ramshot True Blue	<<locked>>	62%	31618	85%	**83	99%
ReloadSwiss RS 12	<<locked>>	71%	32576	88%	**01	100%
ReloadSwiss RS 14	<<locked>>	96%	11922	32%	**7	100%
ReloadSwiss RS 20	<<locked>>	83%	31705	86%	**76	100%
ReloadSwiss RS 24	<<locked>>	86%	33214	90%	**62	90%
Rottweil P 801	<<locked>>	66%	32706	88%	**71	100%
Rottweil P 806 👍	<<locked>>	91%	31575	85%	**94	99%
SNPE Vectan A0 👍	<<locked>>	84%	32518	88%	**37	100%
SNPE Vectan BA 9	<<locked>>	76%	32213	87%	**04	100%
SNPE Vectan BA10	<<locked>>	69%	33040	89%	**86	100%
SNPE Vectan BA7 1/2	<<locked>>	89%	31517	85%	**73	99%
SNPE Vectan BA9 1/2	<<locked>>	77%	32213	87%	**17	100%
[Shooters World Major Pistol]*	<<locked>>	78%	31604	85%	**52	87%
Somchem MP200	<<locked>>	75%	31734	86%	**60	100%
Somchem MS200	<<locked>>	79%	32039	87%	**47	100%
Somchem S221	<<locked>>	72%	33170	90%	**42	93%
Vihtavuori 3N37	<<locked>>	83%	32242	87%	**06	100%
Vihtavuori 3N38	<<locked>>	96%	31952	86%	**35	90%
Vihtavuori N105	<<locked>>	96%	24163	65%	**66	90%
Vihtavuori N320	<<locked>>	75%	33040	89%	**78	100%
Vihtavuori N32C Tin Star	<<locked>>	95%	28761	78%	**66	100%
Vihtavuori N330	<<locked>>	76%	32198	87%	**27	100%
Vihtavuori N340	<<locked>>	79%	31198	84%	**40	100%
Vihtavuori N350	<<locked>>	87%	32866	89%	**09	100%
Winchester 231	<<locked>>	64%	31908	86%	**98	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	66%	13692	37%	**2	81%
ADI AP 70N	<<locked>>	60%	26179	71%	**45	100%
ADI APS 350	<<locked>>	62%	25701	69%	**5	100%
ADI APS 450	<<locked>>	62%	24178	65%	**8	100%
ADI AS 30	<<locked>>	61%	21886	59%	**8	100%
ADI AS 50N	<<locked>>	61%	23482	63%	**50	100%
Accurate No. 2	<<locked>>	61%	20900	57%	**66	99%
[Accurate No. 7]*	<<locked>>	69%	22234	60%	**94	80%
Accurate Solo 1000	<<locked>>	61%	22510	61%	**20	100%
Accurate Solo 1250	<<locked>>	61%	18246	49%	**01	100%
[Alliant BLUE DOT]*	<<locked>>	90%	24236	66%	**14	80%
Alliant BULLSEYE	<<locked>>	61%	24294	66%	**52	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	17013	46%	**56	84%
Alliant UNIQUE	<<locked>>	62%	18507	50%	**53	99%
Baschieri & Pellagri 100	<<locked>>	61%	20726	56%	**04	100%
Hodgdon Clays	<<locked>>	62%	25976	70%	**1	100%
Hodgdon HS-6	<<locked>>	61%	25657	69%	**98	96%
Hodgdon Longshot	<<locked>>	61%	29341	79%	**57	99%
Hodgdon Universal	<<locked>>	60%	21611	58%	**73	100%
Hodgdon TrailBoss	<<locked>>	65%	7092	19%	**3	100%
[Lovex D037.1]*	<<locked>>	69%	22234	60%	**94	80%
Lovex S011	<<locked>>	61%	28152	76%	**29	100%
Lovex S020	<<locked>>	61%	21176	57%	**79	100%
Maxam CSB 1	<<locked>>	61%	17535	47%	**1	100%
Maxam CSB 2	<<locked>>	61%	18057	49%	**14	100%
Maxam CSB 3	<<locked>>	62%	20436	55%	**20	100%
Maxam CSB 4	<<locked>>	61%	22046	60%	**24	100%
Maxam CSB 5	<<locked>>	61%	24482	66%	**17	100%
Ramshot Silhouette	<<locked>>	61%	26339	71%	**94	100%
Ramshot True Blue	<<locked>>	61%	29762	80%	**60	99%
ReloadSwiss RS 12	<<locked>>	61%	23888	65%	**89	100%
ReloadSwiss RS 14	<<locked>>	66%	6701	18%	**9	97%
ReloadSwiss RS 20	<<locked>>	60%	16172	44%	**17	99%
[ReloadSwiss RS 24]*	<<locked>>	69%	19580	53%	**15	80%
Rottweil P 801	<<locked>>	61%	28456	77%	**19	100%
[Rottweil P 806]*	<<locked>>	61%	10559	29%	**5	82%
SNPE Vectan A0	<<locked>>	61%	17172	46%	**4	98%
SNPE Vectan BA 9	<<locked>>	61%	21190	57%	**50	100%
SNPE Vectan BA10	<<locked>>	60%	26266	71%	**04	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	14547	39%	**1	89%
SNPE Vectan BA9 1/2	<<locked>>	61%	20929	57%	**50	100%
[Shooters World Major Pistol]*	<<locked>>	69%	22234	60%	**94	80%
Somchem MP200	<<locked>>	61%	21147	57%	**99	99%
Somchem MS200	<<locked>>	61%	19247	52%	**40	100%
[Somchem S221]*	<<locked>>	61%	22350	60%	**61	87%
Vihtavuori 3N37	<<locked>>	61%	16534	45%	**24	93%
[Vihtavuori 3N38]*	<<locked>>	78%	18449	50%	**93	80%
[Vihtavuori N105]*	<<locked>>	83%	16505	45%	**89	82%
Vihtavuori N320	<<locked>>	60%	21886	59%	**33	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	12705	34%	**7	100%
Vihtavuori N330	<<locked>>	61%	20088	54%	**56	100%
Vihtavuori N340	<<locked>>	61%	18521	50%	**33	99%
Vihtavuori N350	<<locked>>	61%	15055	41%	**1	92%
Winchester 231	<<locked>>	61%	29704	80%	**65	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.