Load data for .44 Auto Mag. + .430 | 240gr | Rim Rock RNFP Top Shelf

Recommended Powder(s): Vihtavuori 3N37, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.43 \| 240gr \| Rim Rock RNFP Top Shelf
Manufacturer SKU:	#359
Bullet Weight:	240gr \| 15.6g
Bullet Diameter:	0.430" \| 10.92mm
Bullet Length:	0.685" \| 17.4mm
Caliber:	.44 Auto Mag. load data
Case Length (l3):	1.298" \| 33.0mm
Cartridge Length (C.O.L.):	1.416" \| 36.0mm
Seated Depth:	0.567" \| 14.4mm
Shank Seated Depth:	0.567" \| 14.4mm
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_B10628_C710
Last updated:	2025-01-01

Load data for 114 loads in caliber .44 Auto Mag. with .43 | 240gr | Rim Rock RNFP Top Shelf bullet and 57 powders such as 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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Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
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>>	96%	32053	87%	**71	98%
ADI AP 70N	<<locked>>	66%	32590	88%	**83	100%
ADI APS 350	<<locked>>	69%	31734	86%	**2	100%
ADI APS 450	<<locked>>	72%	32605	88%	**5	100%
ADI AS 30	<<locked>>	75%	32866	89%	**4	100%
ADI AS 50N	<<locked>>	71%	32314	87%	**30	100%
Accurate No. 2	<<locked>>	72%	31807	86%	**93	100%
Accurate No. 7	<<locked>>	77%	32401	88%	**27	90%
[Accurate No. 9]*	<<locked>>	85%	32068	87%	**04	83%
Accurate Solo 1000	<<locked>>	71%	30922	84%	**01	100%
Accurate Solo 1250	<<locked>>	80%	33185	90%	**76	100%
[Accurate TCM]*	<<locked>>	85%	31937	86%	**07	85%
[Alliant BLUE DOT]*	<<locked>>	95%	29472	80%	**71	87%
Alliant BULLSEYE	<<locked>>	69%	32503	88%	**25	100%
Alliant POWER PISTOL	<<locked>>	80%	32996	89%	**24	97%
Alliant UNIQUE	<<locked>>	78%	31488	85%	**29	100%
Baschieri & Pellagri 100	<<locked>>	74%	31589	85%	**14	100%
Hodgdon Clays	<<locked>>	69%	32184	87%	**2	100%
Hodgdon HS-6	<<locked>>	65%	32169	87%	**55	100%
Hodgdon Longshot	<<locked>>	63%	33170	90%	**68	100%
Hodgdon Universal	<<locked>>	73%	32590	88%	**83	100%
Hodgdon TrailBoss	<<locked>>	93%	13343	36%	**1	100%
Lovex D037.1	<<locked>>	77%	32401	88%	**27	90%
[Lovex D037.2]*	<<locked>>	85%	32938	89%	**17	84%
Lovex S011	<<locked>>	64%	32242	87%	**40	100%
Lovex S020	<<locked>>	71%	31778	86%	**93	100%
Maxam CSB 1	<<locked>>	82%	32358	87%	**63	100%
Maxam CSB 2	<<locked>>	78%	31952	86%	**66	100%
Maxam CSB 3	<<locked>>	77%	32198	87%	**43	100%
Maxam CSB 4	<<locked>>	75%	33141	90%	**30	100%
Maxam CSB 5	<<locked>>	68%	31111	84%	**8	100%
Ramshot Silhouette	<<locked>>	65%	32401	88%	**32	100%
ReloadSwiss RS 12	<<locked>>	69%	32634	88%	**60	100%
ReloadSwiss RS 14	<<locked>>	94%	12285	33%	**8	100%
ReloadSwiss RS 20	<<locked>>	81%	32082	87%	**32	100%
ReloadSwiss RS 24	<<locked>>	82%	31923	86%	**04	92%
Rottweil P 801	<<locked>>	64%	32779	89%	**33	100%
Rottweil P 806	<<locked>>	88%	31575	85%	**40	100%
SNPE Vectan A0	<<locked>>	82%	32358	87%	**93	100%
SNPE Vectan BA 9	<<locked>>	74%	32735	89%	**70	100%
SNPE Vectan BA10	<<locked>>	67%	32590	88%	**5	100%
SNPE Vectan BA7 1/2	<<locked>>	86%	31763	86%	**38	100%
SNPE Vectan BA9 1/2	<<locked>>	75%	32663	88%	**76	100%
[Shooters World Heavy Pistol]*	<<locked>>	85%	32938	89%	**17	84%
Shooters World Major Pistol	<<locked>>	77%	32401	88%	**27	90%
Somchem MP200	<<locked>>	74%	32938	89%	**32	100%
Somchem MS200	<<locked>>	77%	32430	88%	**06	100%
Somchem S221	<<locked>>	70%	32895	89%	**01	95%
Vihtavuori 3N37 👍	<<locked>>	80%	31415	85%	**52	100%
Vihtavuori 3N38	<<locked>>	95%	33127	90%	**14	94%
Vihtavuori N105	<<locked>>	96%	26731	72%	**78	95%
Vihtavuori N320	<<locked>>	70%	31140	84%	**17	100%
Vihtavuori N32C Tin Star	<<locked>>	94%	29907	81%	**5	100%
Vihtavuori N330	<<locked>>	75%	32677	88%	**89	100%
Vihtavuori N340	<<locked>>	78%	32068	87%	**06	100%
Vihtavuori N350 👍	<<locked>>	83%	31618	86%	**52	100%
Winchester 231	<<locked>>	63%	33083	89%	**66	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	12662	34%	**7	83%
ADI AP 70N	<<locked>>	61%	28007	76%	**33	100%
ADI APS 350	<<locked>>	61%	26353	71%	**6	100%
ADI APS 450	<<locked>>	62%	25237	68%	**3	100%
ADI AS 30	<<locked>>	60%	23076	62%	**3	100%
ADI AS 50N	<<locked>>	61%	25280	68%	**8	100%
Accurate No. 2	<<locked>>	61%	22147	60%	**8	100%
[Accurate No. 7]*	<<locked>>	63%	19508	53%	**20	81%
[Accurate No. 9]*	<<locked>>	81%	28239	76%	**52	81%
Accurate Solo 1000	<<locked>>	61%	23757	64%	**5	100%
Accurate Solo 1250	<<locked>>	61%	19928	54%	**2	100%
[Accurate TCM]*	<<locked>>	77%	25150	68%	**06	80%
[Alliant BLUE DOT]*	<<locked>>	81%	20320	55%	**17	80%
Alliant BULLSEYE	<<locked>>	61%	25570	69%	**37	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	18652	50%	**4	89%
Alliant UNIQUE	<<locked>>	61%	19740	53%	**8	100%
Baschieri & Pellagri 100	<<locked>>	61%	22466	61%	**9	100%
Hodgdon Clays	<<locked>>	61%	26832	73%	**3	100%
Hodgdon HS-6	<<locked>>	61%	28152	76%	**09	99%
Hodgdon Longshot	<<locked>>	61%	31227	84%	**42	100%
Hodgdon Universal	<<locked>>	61%	23656	64%	**8	100%
Hodgdon TrailBoss	<<locked>>	76%	9660	26%	**9	100%
[Lovex D037.1]*	<<locked>>	63%	19508	53%	**20	81%
[Lovex D037.2]*	<<locked>>	80%	27470	74%	**48	81%
Lovex S011	<<locked>>	61%	29588	80%	**10	100%
Lovex S020	<<locked>>	61%	22727	61%	**1	100%
Maxam CSB 1	<<locked>>	60%	18130	49%	**6	100%
Maxam CSB 2	<<locked>>	60%	19087	52%	**6	100%
Maxam CSB 3	<<locked>>	61%	21060	57%	**6	100%
Maxam CSB 4	<<locked>>	62%	23627	64%	**2	100%
Maxam CSB 5	<<locked>>	61%	25991	70%	**2	100%
Ramshot Silhouette	<<locked>>	61%	28195	76%	**83	100%
ReloadSwiss RS 12	<<locked>>	60%	25556	69%	**1	100%
ReloadSwiss RS 14	<<locked>>	78%	8963	24%	**3	100%
ReloadSwiss RS 20	<<locked>>	62%	18144	49%	**8	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	16462	45%	**5	80%
Rottweil P 801	<<locked>>	62%	30443	82%	**04	100%
[Rottweil P 806]*	<<locked>>	61%	11748	32%	**3	88%
SNPE Vectan A0	<<locked>>	62%	18913	51%	**6	100%
SNPE Vectan BA 9	<<locked>>	61%	22437	61%	**5	100%
SNPE Vectan BA10	<<locked>>	61%	27499	74%	**9	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	15577	42%	**6	93%
SNPE Vectan BA9 1/2	<<locked>>	61%	21973	59%	**5	100%
[Shooters World Heavy Pistol]*	<<locked>>	80%	27470	74%	**48	81%
[Shooters World Major Pistol]*	<<locked>>	63%	19508	53%	**20	81%
Somchem MP200	<<locked>>	61%	22872	62%	**01	100%
Somchem MS200	<<locked>>	60%	20436	55%	**2	100%
Somchem S221	<<locked>>	61%	24076	65%	**70	91%
Vihtavuori 3N37	<<locked>>	61%	17303	47%	**5	96%
[Vihtavuori 3N38]*	<<locked>>	70%	15751	43%	**9	80%
[Vihtavuori N105]*	<<locked>>	73%	13068	35%	**9	80%
Vihtavuori N320	<<locked>>	61%	23786	64%	**5	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	13576	37%	**5	100%
Vihtavuori N330	<<locked>>	61%	21321	58%	**1	100%
Vihtavuori N340	<<locked>>	61%	19638	53%	**8	100%
Vihtavuori N350	<<locked>>	61%	15708	42%	**9	95%
Winchester 231	<<locked>>	61%	30676	83%	**40	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.