Load data for .38-45 ACP + .358 | 130gr | Rim Rock RNFP Cowboy

Recommended Powder(s): Alliant BULLSEYE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200, Somchem MS200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 130gr \| Rim Rock RNFP Cowboy
Manufacturer SKU:	#013
Bullet Weight:	130gr \| 8.4g
Bullet Diameter:	0.358" \| 9.09mm
Bullet Length:	0.566" \| 14.4mm
Caliber:	.38-45 ACP load data
Case Length (l3):	0.898" \| 22.8mm
Cartridge Length (C.O.L.):	1.042" \| 26.5mm
Seated Depth:	0.422" \| 10.7mm
Shank Seated Depth:	0.422" \| 10.7mm
Case Capacity:	22.0 Grains of Water \| 1.43 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	34084 psi \| 2350 bar
LID:	LID_B10539_C596
Last updated:	2025-01-01

Load data for 102 loads in caliber .38-45 ACP with .358 | 130gr | Rim Rock RNFP Cowboy bullet and 51 powders such as Alliant BULLSEYE, Ramshot Silhouette, ReloadSwiss RS 20, Somchem MP200, Somchem MS200. 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%	23264	68%	**65	88%
ADI AP 70N	<<locked>>	73%	30661	90%	**27	100%
ADI APS 350	<<locked>>	68%	26760	79%	**4	100%
ADI APS 450	<<locked>>	71%	26963	79%	**24	100%
ADI AS 30	<<locked>>	78%	28674	84%	**93	100%
ADI AS 50N	<<locked>>	76%	29544	87%	**52	100%
Accurate No. 2	<<locked>>	78%	29573	87%	**01	99%
Accurate No. 5	<<locked>>	66%	30327	89%	**86	94%
Accurate Solo 1000	<<locked>>	78%	29399	86%	**29	100%
Accurate Solo 1250	<<locked>>	87%	30443	89%	**04	100%
Alliant BULLSEYE 👍	<<locked>>	74%	28877	85%	**34	100%
Alliant POWER PISTOL	<<locked>>	88%	30153	88%	**29	91%
Alliant UNIQUE	<<locked>>	87%	30095	88%	**66	100%
Baschieri & Pellagri 100	<<locked>>	77%	27021	79%	**09	100%
Hodgdon Clays	<<locked>>	68%	26890	79%	**7	100%
Hodgdon HS-6	<<locked>>	71%	28964	85%	**53	95%
Hodgdon Longshot	<<locked>>	66%	27949	82%	**40	97%
Hodgdon Universal	<<locked>>	79%	28761	84%	**01	100%
Hodgdon TrailBoss	<<locked>>	97%	10820	32%	**1	100%
Lovex D036	<<locked>>	66%	30284	89%	**86	94%
Lovex S011	<<locked>>	66%	27238	80%	**29	100%
Lovex S020	<<locked>>	79%	29791	87%	**24	100%
Maxam CSB 1	<<locked>>	90%	30342	89%	**94	100%
Maxam CSB 2	<<locked>>	85%	28007	82%	**88	100%
Maxam CSB 3	<<locked>>	82%	29196	86%	**61	100%
Maxam CSB 4	<<locked>>	76%	27412	80%	**19	100%
Maxam CSB 5	<<locked>>	71%	27224	80%	**73	100%
Ramshot Silhouette 👍	<<locked>>	72%	29849	88%	**53	100%
Ramshot True Blue	<<locked>>	67%	29979	88%	**63	97%
ReloadSwiss RS 12	<<locked>>	75%	29428	86%	**94	100%
ReloadSwiss RS 14	<<locked>>	95%	9224	27%	**1	99%
ReloadSwiss RS 20 👍	<<locked>>	89%	28616	84%	**53	100%
[ReloadSwiss RS 24]*	<<locked>>	91%	29936	88%	**09	84%
Rottweil P 801	<<locked>>	70%	29689	87%	**55	100%
Rottweil P 806	<<locked>>	96%	25962	76%	**29	95%
SNPE Vectan A0	<<locked>>	88%	29399	86%	**01	100%
SNPE Vectan BA 9	<<locked>>	79%	29370	86%	**81	100%
SNPE Vectan BA10	<<locked>>	66%	26948	79%	**24	100%
SNPE Vectan BA7 1/2	<<locked>>	93%	28210	83%	**24	96%
SNPE Vectan BA9 1/2	<<locked>>	80%	29022	85%	**91	100%
Shooters World Auto Pistol	<<locked>>	66%	30284	89%	**86	94%
Somchem MP200 👍	<<locked>>	77%	27195	80%	**11	100%
Somchem MS200 👍	<<locked>>	84%	29747	87%	**27	100%
[Somchem S221]*	<<locked>>	75%	29066	85%	**76	88%
Vihtavuori 3N37	<<locked>>	88%	29240	86%	**76	97%
Vihtavuori N320	<<locked>>	76%	27760	81%	**38	100%
Vihtavuori N32C Tin Star	<<locked>>	92%	22176	65%	**01	100%
Vihtavuori N330	<<locked>>	80%	27992	82%	**94	100%
Vihtavuori N340	<<locked>>	83%	27920	82%	**11	100%
Vihtavuori N350	<<locked>>	90%	27673	81%	**50	97%
Winchester 231	<<locked>>	69%	30632	90%	**94	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	82%	16839	49%	**27	82%
ADI AP 70N	<<locked>>	60%	21190	62%	**83	100%
ADI APS 350	<<locked>>	62%	22742	67%	**2	100%
ADI APS 450	<<locked>>	60%	20131	59%	**8	100%
ADI AS 30	<<locked>>	60%	18434	54%	**5	100%
ADI AS 50N	<<locked>>	61%	19682	58%	**07	100%
Accurate No. 2	<<locked>>	60%	16766	49%	**4	94%
Accurate No. 5	<<locked>>	60%	24642	72%	**94	91%
Accurate Solo 1000	<<locked>>	62%	19305	57%	**1	100%
Accurate Solo 1250	<<locked>>	62%	15345	45%	**5	99%
Alliant BULLSEYE	<<locked>>	60%	19479	57%	**73	98%
[Alliant POWER PISTOL]*	<<locked>>	69%	17695	52%	**79	82%
Alliant UNIQUE	<<locked>>	60%	14112	41%	**5	94%
Baschieri & Pellagri 100	<<locked>>	62%	17666	52%	**8	100%
Hodgdon Clays	<<locked>>	62%	23018	68%	**8	100%
Hodgdon HS-6	<<locked>>	62%	21205	62%	**22	91%
Hodgdon Longshot	<<locked>>	61%	22597	66%	**52	94%
Hodgdon Universal	<<locked>>	60%	17274	51%	**07	100%
Hodgdon TrailBoss	<<locked>>	79%	7774	23%	**5	100%
Lovex D036	<<locked>>	60%	24598	72%	**94	91%
Lovex S011	<<locked>>	61%	23830	70%	**79	100%
Lovex S020	<<locked>>	62%	17419	51%	**24	99%
Maxam CSB 1	<<locked>>	60%	13793	40%	**9	99%
Maxam CSB 2	<<locked>>	61%	13793	40%	**1	100%
Maxam CSB 3	<<locked>>	62%	16984	50%	**8	100%
Maxam CSB 4	<<locked>>	60%	17738	52%	**8	100%
Maxam CSB 5	<<locked>>	60%	20218	59%	**1	100%
Ramshot Silhouette	<<locked>>	61%	21451	63%	**19	97%
Ramshot True Blue	<<locked>>	61%	24294	71%	**75	95%
ReloadSwiss RS 12	<<locked>>	62%	19725	58%	**53	100%
ReloadSwiss RS 14	<<locked>>	78%	6744	20%	**2	96%
ReloadSwiss RS 20	<<locked>>	62%	13402	39%	**8	96%
[ReloadSwiss RS 24]*	<<locked>>	84%	24714	72%	**17	81%
Rottweil P 801	<<locked>>	61%	22945	67%	**70	100%
[Rottweil P 806]*	<<locked>>	73%	11458	34%	**1	81%
SNPE Vectan A0	<<locked>>	60%	14054	41%	**2	94%
SNPE Vectan BA 9	<<locked>>	62%	18202	53%	**04	99%
SNPE Vectan BA10	<<locked>>	61%	23380	69%	**4	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	11574	34%	**3	81%
SNPE Vectan BA9 1/2	<<locked>>	62%	17332	51%	**7	100%
Shooters World Auto Pistol	<<locked>>	60%	24598	72%	**94	91%
Somchem MP200	<<locked>>	60%	16955	50%	**17	95%
Somchem MS200	<<locked>>	61%	16056	47%	**8	97%
[Somchem S221]*	<<locked>>	64%	19667	58%	**02	80%
[Vihtavuori 3N37]*	<<locked>>	62%	12865	38%	**8	85%
Vihtavuori N320	<<locked>>	61%	17695	52%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	62%	10559	31%	**1	100%
Vihtavuori N330	<<locked>>	61%	15882	47%	**7	100%
Vihtavuori N340	<<locked>>	60%	14446	42%	**1	95%
[Vihtavuori N350]*	<<locked>>	61%	11734	34%	**2	83%
Winchester 231	<<locked>>	61%	24062	71%	**06	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