Load data for .38-45 ACP + .358 | 158gr | Rim Rock RN Cowboy

Recommended Powder(s): Hodgdon HS-6

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 158gr \| Rim Rock RN Cowboy
Manufacturer SKU:	#014
Bullet Weight:	158gr \| 10.2g
Bullet Diameter:	0.358" \| 9.09mm
Bullet Length:	0.687" \| 17.4mm
Caliber:	.38-45 ACP load data
Case Length (l3):	0.898" \| 22.8mm
Cartridge Length (C.O.L.):	1.229" \| 31.2mm
Seated Depth:	0.356" \| 9.0mm
Shank Seated Depth:	0.356" \| 9.0mm
Case Capacity:	22.0 Grains of Water \| 1.43 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B10540_C596
Last updated:	2025-01-01

Load data for 0 loads in caliber .38-45 ACP with .358 | 158gr | Rim Rock RN Cowboy bullet and 0 powders such as Hodgdon HS-6. 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>>	95%	30589	90%	**07	97%
ADI AP 70N	<<locked>>	63%	29254	86%	**02	100%
ADI APS 350	<<locked>>	68%	29994	88%	**2	100%
ADI APS 450	<<locked>>	69%	29849	88%	**1	100%
ADI AS 30	<<locked>>	73%	30356	89%	**17	100%
ADI AS 50N	<<locked>>	69%	29805	87%	**53	100%
Accurate No. 2	<<locked>>	70%	28819	85%	**06	100%
[Accurate No. 7]*	<<locked>>	75%	29428	86%	**43	88%
Accurate Solo 1000	<<locked>>	70%	29008	85%	**27	100%
Accurate Solo 1250	<<locked>>	78%	30371	89%	**99	100%
[Accurate TCM]*	<<locked>>	84%	29660	87%	**24	82%
[Alliant BLUE DOT]*	<<locked>>	97%	29675	87%	**30	86%
Alliant BULLSEYE	<<locked>>	68%	30429	89%	**58	100%
Alliant POWER PISTOL	<<locked>>	78%	29878	88%	**34	96%
Alliant Sport Pistol	<<locked>>	63%	29849	88%	**48	100%
Alliant UNIQUE	<<locked>>	78%	30240	89%	**65	100%
Baschieri & Pellagri 100	<<locked>>	73%	30472	89%	**50	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	92%	30139	88%	**66	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	70%	30197	89%	**76	100%
Hodgdon Clays	<<locked>>	68%	30327	89%	**5	100%
Hodgdon HS-6 👍	<<locked>>	64%	29733	87%	**81	99%
Hodgdon Universal	<<locked>>	70%	29254	86%	**02	100%
Hodgdon CFE Pistol	<<locked>>	73%	29327	86%	**99	100%
[Lovex D037.1]*	<<locked>>	75%	29428	86%	**43	88%
Lovex S011	<<locked>>	63%	30458	89%	**70	100%
Lovex S020	<<locked>>	71%	29834	88%	**25	100%
Maxam CSB 1	<<locked>>	81%	30139	88%	**96	100%
Maxam CSB 2	<<locked>>	76%	29080	85%	**93	100%
Maxam CSB 3	<<locked>>	74%	29254	86%	**60	100%
Maxam CSB 4	<<locked>>	71%	29211	86%	**40	100%
Maxam CSB 5	<<locked>>	67%	29341	86%	**7	100%
Ramshot Silhouette	<<locked>>	64%	29486	87%	**55	100%
ReloadSwiss RS 12	<<locked>>	68%	30574	90%	**89	100%
ReloadSwiss RS 20	<<locked>>	79%	29269	86%	**55	100%
ReloadSwiss RS 24	<<locked>>	82%	30676	90%	**40	91%
Rottweil P 801	<<locked>>	63%	30255	89%	**56	100%
Rottweil P 806	<<locked>>	89%	30589	90%	**93	100%
SNPE Vectan A0	<<locked>>	81%	30414	89%	**22	100%
SNPE Vectan BA 9	<<locked>>	73%	30429	89%	**99	100%
SNPE Vectan BA10	<<locked>>	65%	29834	88%	**1	100%
SNPE Vectan BA7 1/2	<<locked>>	86%	30458	89%	**71	99%
SNPE Vectan BA9 1/2	<<locked>>	74%	30472	89%	**09	100%
SNPE Vectan SP 2	<<locked>>	75%	30298	89%	**60	98%
[Shooters World Major Pistol]*	<<locked>>	75%	29428	86%	**43	88%
Somchem MP200	<<locked>>	72%	30356	89%	**55	100%
Somchem MS200	<<locked>>	75%	29602	87%	**22	100%
Somchem S221	<<locked>>	68%	29921	88%	**11	93%
Vihtavuori 3N37	<<locked>>	79%	29037	85%	**81	100%
Vihtavuori 3N38	<<locked>>	93%	30618	90%	**30	91%
Vihtavuori N105	<<locked>>	96%	24903	73%	**04	93%
Vihtavuori N320	<<locked>>	70%	30066	88%	**56	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	29965	88%	**4	100%
Vihtavuori N330	<<locked>>	73%	30182	89%	**15	100%
Vihtavuori N340	<<locked>>	76%	29646	87%	**32	100%
Vihtavuori N350	<<locked>>	83%	30385	89%	**91	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	69%	15432	45%	**8	86%
ADI AP 70N	<<locked>>	62%	27818	82%	**79	100%
ADI APS 350	<<locked>>	65%	28036	82%	**2	100%
ADI APS 450	<<locked>>	64%	26513	78%	**2	100%
ADI AS 30	<<locked>>	63%	23656	69%	**5	100%
ADI AS 50N	<<locked>>	62%	24816	73%	**1	100%
Accurate No. 2	<<locked>>	60%	20972	62%	**1	99%
[Accurate No. 7]*	<<locked>>	65%	19754	58%	**70	80%
Accurate Solo 1000	<<locked>>	61%	22669	67%	**5	100%
Accurate Solo 1250	<<locked>>	60%	18637	55%	**8	100%
[Accurate TCM]*	<<locked>>	81%	27166	80%	**88	81%
[Alliant BLUE DOT]*	<<locked>>	86%	22133	65%	**99	81%
Alliant BULLSEYE	<<locked>>	60%	24308	71%	**70	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	17260	51%	**4	87%
Alliant Sport Pistol	<<locked>>	61%	28195	83%	**32	100%
Alliant UNIQUE	<<locked>>	60%	18318	54%	**4	100%
Baschieri & Pellagri 100	<<locked>>	60%	20958	61%	**2	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	75%	19450	57%	**5	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	22858	67%	**4	100%
Hodgdon Clays	<<locked>>	65%	28558	84%	**5	100%
Hodgdon HS-6	<<locked>>	61%	27137	80%	**45	98%
Hodgdon Universal	<<locked>>	60%	22002	65%	**01	100%
Hodgdon CFE Pistol	<<locked>>	61%	21147	62%	**1	100%
[Lovex D037.1]*	<<locked>>	65%	19754	58%	**70	80%
Lovex S011	<<locked>>	61%	28689	84%	**50	100%
Lovex S020	<<locked>>	61%	22133	65%	**24	100%
Maxam CSB 1	<<locked>>	63%	18942	56%	**5	100%
Maxam CSB 2	<<locked>>	62%	18985	56%	**1	100%
Maxam CSB 3	<<locked>>	61%	20421	60%	**2	100%
Maxam CSB 4	<<locked>>	62%	22945	67%	**8	100%
Maxam CSB 5	<<locked>>	62%	25831	76%	**5	100%
Ramshot Silhouette	<<locked>>	61%	26731	78%	**15	100%
ReloadSwiss RS 12	<<locked>>	62%	25672	75%	**33	100%
ReloadSwiss RS 20	<<locked>>	62%	17332	51%	**8	100%
[ReloadSwiss RS 24]*	<<locked>>	65%	17666	52%	**07	81%
Rottweil P 801	<<locked>>	61%	28587	84%	**40	100%
[Rottweil P 806]*	<<locked>>	63%	12285	36%	**5	88%
SNPE Vectan A0	<<locked>>	60%	17593	52%	**5	99%
SNPE Vectan BA 9	<<locked>>	61%	22075	65%	**8	100%
SNPE Vectan BA10	<<locked>>	60%	26498	78%	**2	100%
SNPE Vectan BA7 1/2	<<locked>>	63%	16041	47%	**2	93%
SNPE Vectan BA9 1/2	<<locked>>	62%	21712	64%	**8	100%
SNPE Vectan SP 2	<<locked>>	60%	18188	53%	**40	90%
[Shooters World Major Pistol]*	<<locked>>	65%	19754	58%	**70	80%
Somchem MP200	<<locked>>	61%	22031	65%	**37	100%
Somchem MS200	<<locked>>	61%	20102	59%	**4	100%
[Somchem S221]*	<<locked>>	61%	22960	67%	**96	89%
Vihtavuori 3N37	<<locked>>	60%	16288	48%	**5	94%
[Vihtavuori 3N38]*	<<locked>>	73%	16520	48%	**8	80%
[Vihtavuori N105]*	<<locked>>	78%	14417	42%	**8	81%
Vihtavuori N320	<<locked>>	62%	23250	68%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	85%	24134	71%	**2	100%
Vihtavuori N330	<<locked>>	61%	20972	62%	**4	100%
Vihtavuori N340	<<locked>>	60%	18507	54%	**5	100%
Vihtavuori N350	<<locked>>	60%	14939	44%	**2	93%

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