Load data for .45 Win. Mag. + .452 | 255gr | Rim Rock SWC Gas Check

Recommended Powder(s): Hodgdon HS-6, Hodgdon Longshot, Rottweil P 806, SNPE Vectan A0, Vihtavuori N350

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.452 \| 255gr \| Rim Rock SWC Gas Check
Manufacturer SKU:	#346
Bullet Weight:	255gr \| 16.5g
Bullet Diameter:	0.452" \| 11.48mm
Bullet Length:	0.686" \| 17.4mm
Caliber:	.45 Win. Mag. load data
Case Length (l3):	1.198" \| 30.4mm
Cartridge Length (C.O.L.):	1.377" \| 35.0mm
Seated Depth:	0.507" \| 12.9mm
Shank Seated Depth:	0.507" \| 12.9mm
Case Capacity:	38.0 Grains of Water \| 2.47 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	39885 psi \| 2750 bar
LID:	LID_B10657_C740
Last updated:	2025-01-01

Load data for 118 loads in caliber .45 Win. Mag. with .452 | 255gr | Rim Rock SWC Gas Check bullet and 59 powders such as Hodgdon HS-6, Hodgdon Longshot, Rottweil P 806, SNPE Vectan A0, 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>>	95%	26600	67%	**83	93%
ADI AP 70N	<<locked>>	71%	33286	83%	**93	100%
ADI APS 350	<<locked>>	76%	34171	86%	**5	100%
ADI APS 450	<<locked>>	79%	34911	88%	**1	100%
ADI AS 30	<<locked>>	84%	35897	90%	**24	100%
ADI AS 50N	<<locked>>	77%	33794	85%	**43	100%
Accurate No. 2	<<locked>>	78%	33170	83%	**96	100%
Accurate No. 5	<<locked>>	67%	35592	89%	**07	98%
[Accurate No. 7]*	<<locked>>	85%	34983	88%	**43	88%
Accurate Solo 1000	<<locked>>	81%	35143	88%	**40	100%
Accurate Solo 1250	<<locked>>	87%	34360	86%	**89	100%
[Accurate TCM]*	<<locked>>	93%	34795	87%	**20	83%
[Alliant BLUE DOT]*	<<locked>>	97%	25933	65%	**02	82%
Alliant BULLSEYE	<<locked>>	75%	33678	84%	**35	100%
Alliant POWER PISTOL	<<locked>>	87%	34200	86%	**27	96%
Alliant UNIQUE	<<locked>>	88%	34418	86%	**58	100%
Baschieri & Pellagri 100	<<locked>>	83%	35679	89%	**50	100%
Hodgdon Clays	<<locked>>	76%	34867	87%	**8	100%
Hodgdon HS-6 👍	<<locked>>	73%	35781	90%	**88	99%
Hodgdon Longshot 👍	<<locked>>	69%	34853	87%	**78	100%
Hodgdon Universal	<<locked>>	79%	33286	83%	**93	100%
Hodgdon TrailBoss	<<locked>>	94%	11777	30%	**5	100%
Lovex D036	<<locked>>	67%	35549	89%	**04	98%
[Lovex D037.1]*	<<locked>>	85%	34983	88%	**43	88%
Lovex S011	<<locked>>	69%	33837	85%	**53	100%
Lovex S020	<<locked>>	80%	35099	88%	**25	100%
Maxam CSB 1	<<locked>>	91%	34534	87%	**83	100%
Maxam CSB 2	<<locked>>	87%	33562	84%	**86	100%
Maxam CSB 3	<<locked>>	85%	34795	87%	**66	100%
Maxam CSB 4	<<locked>>	81%	34621	87%	**47	100%
Maxam CSB 5	<<locked>>	76%	34200	86%	**7	100%
Ramshot Silhouette	<<locked>>	72%	34069	85%	**48	100%
Ramshot True Blue	<<locked>>	67%	34055	85%	**65	100%
ReloadSwiss RS 12	<<locked>>	76%	34403	86%	**79	100%
ReloadSwiss RS 14	<<locked>>	95%	10646	27%	**5	100%
ReloadSwiss RS 20	<<locked>>	90%	34940	88%	**61	100%
ReloadSwiss RS 24	<<locked>>	91%	34867	87%	**27	91%
Rottweil P 801	<<locked>>	70%	33649	84%	**40	100%
Rottweil P 806 👍	<<locked>>	96%	31981	80%	**47	99%
SNPE Vectan A0 👍	<<locked>>	91%	35737	90%	**22	100%
SNPE Vectan BA 9	<<locked>>	80%	33808	85%	**79	100%
SNPE Vectan BA10	<<locked>>	72%	33518	84%	**8	100%
SNPE Vectan BA7 1/2	<<locked>>	95%	34258	86%	**58	99%
SNPE Vectan BA9 1/2	<<locked>>	82%	33634	84%	**86	100%
Shooters World Auto Pistol	<<locked>>	67%	35549	89%	**04	98%
[Shooters World Major Pistol]*	<<locked>>	85%	34983	88%	**43	88%
Somchem MP200	<<locked>>	80%	33678	84%	**38	100%
Somchem MS200	<<locked>>	85%	34621	87%	**25	100%
Somchem S221	<<locked>>	75%	33750	85%	**94	93%
Vihtavuori 3N37	<<locked>>	88%	33837	85%	**78	100%
[Vihtavuori 3N38]*	<<locked>>	96%	28718	72%	**38	88%
[Vihtavuori N105]*	<<locked>>	96%	21176	53%	**63	87%
Vihtavuori N310	<<locked>>	64%	33547	84%	**1	100%
Vihtavuori N320	<<locked>>	80%	35186	88%	**60	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	27311	68%	**2	100%
Vihtavuori N330	<<locked>>	81%	33344	84%	**96	100%
Vihtavuori N340	<<locked>>	87%	35404	89%	**38	100%
Vihtavuori N350 👍	<<locked>>	92%	34490	86%	**81	100%
Winchester 231	<<locked>>	68%	34258	86%	**76	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	67%	12734	32%	**0	80%
ADI AP 70N	<<locked>>	61%	24337	61%	**8	100%
ADI APS 350	<<locked>>	60%	23525	59%	**0	100%
ADI APS 450	<<locked>>	61%	22452	56%	**7	100%
ADI AS 30	<<locked>>	61%	20972	53%	**6	100%
ADI AS 50N	<<locked>>	61%	22002	55%	**6	100%
Accurate No. 2	<<locked>>	61%	19261	48%	**9	98%
Accurate No. 5	<<locked>>	61%	29283	73%	**22	96%
[Accurate No. 7]*	<<locked>>	74%	23743	60%	**83	81%
Accurate Solo 1000	<<locked>>	61%	20871	52%	**3	100%
Accurate Solo 1250	<<locked>>	61%	17013	43%	**6	100%
[Accurate TCM]*	<<locked>>	89%	30690	77%	**65	80%
[Alliant BLUE DOT]*	<<locked>>	94%	24337	61%	**79	80%
Alliant BULLSEYE	<<locked>>	61%	22249	56%	**8	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	15476	39%	**2	83%
Alliant UNIQUE	<<locked>>	61%	16795	42%	**2	98%
Baschieri & Pellagri 100	<<locked>>	61%	19421	49%	**6	100%
Hodgdon Clays	<<locked>>	60%	23801	60%	**3	100%
Hodgdon HS-6	<<locked>>	61%	23844	60%	**33	96%
Hodgdon Longshot	<<locked>>	61%	26498	66%	**70	98%
Hodgdon Universal	<<locked>>	61%	20291	51%	**8	100%
Hodgdon TrailBoss	<<locked>>	83%	9514	24%	**9	100%
Lovex D036	<<locked>>	61%	29240	73%	**22	96%
[Lovex D037.1]*	<<locked>>	74%	23743	60%	**83	81%
Lovex S011	<<locked>>	61%	26107	65%	**1	100%
Lovex S020	<<locked>>	61%	19377	49%	**8	100%
Maxam CSB 1	<<locked>>	62%	16375	41%	**6	100%
Maxam CSB 2	<<locked>>	61%	16621	42%	**3	100%
Maxam CSB 3	<<locked>>	62%	19029	48%	**6	100%
Maxam CSB 4	<<locked>>	61%	20436	51%	**9	100%
Maxam CSB 5	<<locked>>	62%	23714	59%	**6	100%
Ramshot Silhouette	<<locked>>	61%	23815	60%	**20	100%
Ramshot True Blue	<<locked>>	61%	27833	70%	**89	99%
ReloadSwiss RS 12	<<locked>>	62%	22640	57%	**1	100%
ReloadSwiss RS 14	<<locked>>	84%	8717	22%	**9	100%
ReloadSwiss RS 20	<<locked>>	62%	15171	38%	**3	99%
[ReloadSwiss RS 24]*	<<locked>>	72%	19406	49%	**8	80%
Rottweil P 801	<<locked>>	62%	26484	66%	**8	100%
[Rottweil P 806]*	<<locked>>	61%	9442	24%	**4	80%
SNPE Vectan A0	<<locked>>	61%	16346	41%	**3	98%
SNPE Vectan BA 9	<<locked>>	61%	19696	49%	**2	100%
SNPE Vectan BA10	<<locked>>	62%	25904	65%	**9	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	13503	34%	**4	88%
SNPE Vectan BA9 1/2	<<locked>>	61%	19043	48%	**2	100%
Shooters World Auto Pistol	<<locked>>	61%	29240	73%	**22	96%
[Shooters World Major Pistol]*	<<locked>>	74%	23743	60%	**83	81%
Somchem MP200	<<locked>>	61%	19899	50%	**8	99%
Somchem MS200	<<locked>>	62%	18463	46%	**6	99%
[Somchem S221]*	<<locked>>	61%	20291	51%	**1	85%
Vihtavuori 3N37	<<locked>>	61%	14736	37%	**3	91%
[Vihtavuori 3N38]*	<<locked>>	82%	19145	48%	**1	81%
[Vihtavuori N105]*	<<locked>>	86%	15896	40%	**1	81%
Vihtavuori N310	<<locked>>	61%	30574	77%	**5	100%
Vihtavuori N320	<<locked>>	60%	20117	50%	**9	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	11937	30%	**9	100%
Vihtavuori N330	<<locked>>	60%	17825	45%	**6	100%
Vihtavuori N340	<<locked>>	61%	16737	42%	**9	99%
Vihtavuori N350	<<locked>>	61%	13285	33%	**7	90%
Winchester 231	<<locked>>	61%	27166	68%	**01	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