Load data for .44 Auto Mag. + .430 | 255gr | Rim Rock SWC Gas Check

Recommended Powder(s): Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N105

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.43 \| 255gr \| Rim Rock SWC Gas Check
Manufacturer SKU:	#417
Bullet Weight:	255gr \| 16.5g
Bullet Diameter:	0.430" \| 10.92mm
Bullet Length:	0.812" \| 20.6mm
Caliber:	.44 Auto Mag. load data
Case Length (l3):	1.298" \| 33.0mm
Cartridge Length (C.O.L.):	1.674" \| 42.5mm
Seated Depth:	0.436" \| 11.1mm
Shank Seated Depth:	0.436" \| 11.1mm
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_B10611_C710
Last updated:	2025-01-01

Load data for 100 loads in caliber .44 Auto Mag. with .43 | 255gr | Rim Rock SWC Gas Check bullet and 50 powders such as Alliant POWER PISTOL, Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N105. 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>>	88%	33272	90%	**07	100%
ADI APS 350	<<locked>>	67%	33170	90%	**8	100%
ADI APS 450	<<locked>>	67%	32111	87%	**1	100%
ADI AS 30	<<locked>>	69%	32837	89%	**04	100%
ADI AS 50N	<<locked>>	66%	33286	90%	**47	100%
Accurate No. 2	<<locked>>	66%	31386	85%	**02	100%
Accurate No. 7	<<locked>>	69%	32822	89%	**57	94%
[Accurate No. 9]*	<<locked>>	77%	32663	88%	**50	88%
Accurate Solo 1000	<<locked>>	67%	31923	86%	**17	100%
Accurate Solo 1250	<<locked>>	73%	33199	90%	**86	100%
[Accurate TCM]*	<<locked>>	77%	32024	87%	**34	89%
[Alliant 2400]*	<<locked>>	87%	32184	87%	**63	85%
Alliant BLUE DOT	<<locked>>	89%	32735	89%	**47	93%
Alliant BULLSEYE	<<locked>>	64%	32808	89%	**38	100%
Alliant POWER PISTOL 👍	<<locked>>	72%	32938	89%	**43	99%
Alliant UNIQUE	<<locked>>	72%	32764	89%	**42	100%
Baschieri & Pellagri 100	<<locked>>	68%	32010	87%	**27	100%
Hodgdon Clays	<<locked>>	64%	31560	85%	**8	100%
Hodgdon Universal	<<locked>>	66%	31995	87%	**79	100%
Hodgdon TrailBoss	<<locked>>	95%	16723	45%	**1	100%
Lovex D037.1	<<locked>>	69%	32822	89%	**57	94%
[Lovex D037.2]*	<<locked>>	76%	31778	86%	**37	88%
Lovex S020	<<locked>>	65%	31778	86%	**99	100%
Maxam CSB 1	<<locked>>	74%	31343	85%	**60	100%
Maxam CSB 2	<<locked>>	70%	31749	86%	**63	100%
Maxam CSB 3	<<locked>>	71%	32764	89%	**53	100%
Maxam CSB 4	<<locked>>	68%	32793	89%	**37	100%
Maxam CSB 5	<<locked>>	64%	32663	88%	**4	100%
[Ramshot Enforcer]*	<<locked>>	88%	31937	86%	**70	86%
ReloadSwiss RS 14	<<locked>>	95%	15403	42%	**7	100%
ReloadSwiss RS 20	<<locked>>	74%	32837	89%	**42	100%
ReloadSwiss RS 24	<<locked>>	74%	31604	85%	**24	95%
Rottweil P 806 👍	<<locked>>	78%	31589	85%	**40	100%
SNPE Vectan A0	<<locked>>	75%	32648	88%	**06	100%
SNPE Vectan BA 9	<<locked>>	67%	31792	86%	**73	100%
SNPE Vectan BA10	<<locked>>	64%	33083	89%	**4	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	79%	32140	87%	**55	100%
SNPE Vectan BA9 1/2	<<locked>>	67%	31546	85%	**73	100%
[Shooters World Heavy Pistol]*	<<locked>>	76%	31778	86%	**37	88%
Shooters World Major Pistol	<<locked>>	69%	32822	89%	**57	94%
Somchem MP200	<<locked>>	67%	33272	90%	**42	100%
Somchem MS200	<<locked>>	70%	32184	87%	**12	100%
Vihtavuori 3N37	<<locked>>	72%	31821	86%	**71	100%
Vihtavuori 3N38	<<locked>>	86%	33214	90%	**34	96%
Vihtavuori N105 👍	<<locked>>	91%	31575	85%	**60	99%
Vihtavuori N320	<<locked>>	66%	32489	88%	**40	100%
Vihtavuori N32C Tin Star	<<locked>>	90%	32880	89%	**1	100%
Vihtavuori N330	<<locked>>	68%	33083	89%	**93	100%
Vihtavuori N340	<<locked>>	70%	31734	86%	**09	100%
Vihtavuori N350	<<locked>>	77%	32953	89%	**75	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AP 100	<<locked>>	61%	15592	42%	**9	90%
ADI APS 350	<<locked>>	61%	28819	78%	**9	100%
ADI APS 450	<<locked>>	61%	27920	76%	**5	100%
ADI AS 30	<<locked>>	61%	26643	72%	**2	100%
ADI AS 50N	<<locked>>	61%	29153	79%	**01	100%
Accurate No. 2	<<locked>>	61%	27122	73%	**50	100%
[Accurate No. 7]*	<<locked>>	61%	24236	66%	**25	89%
[Accurate No. 9]*	<<locked>>	66%	21959	59%	**70	80%
Accurate Solo 1000	<<locked>>	62%	27746	75%	**1	100%
Accurate Solo 1250	<<locked>>	61%	23540	64%	**1	100%
[Accurate TCM]*	<<locked>>	64%	20465	55%	**40	81%
[Alliant 2400]*	<<locked>>	81%	26513	72%	**75	81%
[Alliant BLUE DOT]*	<<locked>>	68%	17680	48%	**8	81%
Alliant BULLSEYE	<<locked>>	61%	30864	83%	**15	100%
Alliant POWER PISTOL	<<locked>>	61%	23351	63%	**93	96%
Alliant UNIQUE	<<locked>>	61%	23757	64%	**27	100%
Baschieri & Pellagri 100	<<locked>>	61%	26078	71%	**1	100%
Hodgdon Clays	<<locked>>	61%	29327	79%	**2	100%
Hodgdon Universal	<<locked>>	61%	28239	76%	**37	100%
Hodgdon TrailBoss	<<locked>>	69%	10022	27%	**6	100%
[Lovex D037.1]*	<<locked>>	61%	24236	66%	**25	89%
[Lovex D037.2]*	<<locked>>	65%	21422	58%	**66	80%
Lovex S020	<<locked>>	61%	27731	75%	**50	100%
Maxam CSB 1	<<locked>>	61%	22539	61%	**8	100%
Maxam CSB 2	<<locked>>	61%	24120	65%	**4	100%
Maxam CSB 3	<<locked>>	61%	25106	68%	**5	100%
Maxam CSB 4	<<locked>>	60%	26687	72%	**8	100%
Maxam CSB 5	<<locked>>	61%	30487	82%	**8	100%
[Ramshot Enforcer]*	<<locked>>	80%	23728	64%	**42	80%
ReloadSwiss RS 14	<<locked>>	70%	9413	25%	**3	100%
ReloadSwiss RS 20	<<locked>>	61%	22336	60%	**07	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20566	56%	**40	88%
Rottweil P 806	<<locked>>	61%	17027	46%	**7	97%
SNPE Vectan A0	<<locked>>	61%	22394	61%	**1	100%
SNPE Vectan BA 9	<<locked>>	61%	26629	72%	**14	100%
SNPE Vectan BA10	<<locked>>	61%	30995	84%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	19203	52%	**1	98%
SNPE Vectan BA9 1/2	<<locked>>	61%	26034	70%	**07	100%
[Shooters World Heavy Pistol]*	<<locked>>	65%	21422	58%	**66	80%
[Shooters World Major Pistol]*	<<locked>>	61%	24236	66%	**25	89%
Somchem MP200	<<locked>>	61%	27833	75%	**79	100%
Somchem MS200	<<locked>>	61%	25048	68%	**20	100%
Vihtavuori 3N37	<<locked>>	61%	22321	60%	**33	100%
[Vihtavuori 3N38]*	<<locked>>	61%	15069	41%	**2	83%
[Vihtavuori N105]*	<<locked>>	61%	11850	32%	**3	82%
Vihtavuori N320	<<locked>>	61%	28079	76%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16636	45%	**4	100%
Vihtavuori N330	<<locked>>	61%	26963	73%	**27	100%
Vihtavuori N340	<<locked>>	61%	24265	66%	**14	100%
Vihtavuori N350	<<locked>>	61%	20073	54%	**1	99%

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.