Load data for 9 mm Mauser + .358 | 158gr | Rim Rock RN Cowboy

Recommended Powder(s):

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:	<<locked>>
Caliber:	9 mm Mauser load data
Case Length (l3):	0.984" \| 25.0mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
Case Capacity:	18.9 Grains of Water \| 1.23 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	37710 psi \| 2600 bar
LID:	LID_B10540_C1223
Last updated:	2026-01-22

Load data for 118 loads in caliber 9 mm Mauser with .358 | 158gr | Rim Rock RN Cowboy bullet and 59 powder(s). 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>>	96%	27615	73%	**09	94%
ADI AP 70N	<<locked>>	72%	33591	89%	**06	100%
ADI APS 450	<<locked>>	77%	33721	89%	**8	100%
ADI AS 30	<<locked>>	80%	33185	88%	**01	100%
ADI AS 50N	<<locked>>	77%	33547	89%	**50	100%
Accurate No. 2	<<locked>>	78%	33243	88%	**06	100%
Accurate No. 5	<<locked>>	65%	33315	88%	**84	98%
[Accurate No. 7]*	<<locked>>	83%	33736	89%	**34	87%
Accurate Solo 1000	<<locked>>	78%	32967	87%	**24	100%
Accurate Solo 1250	<<locked>>	85%	33330	88%	**86	100%
[Accurate TCM]*	<<locked>>	92%	33054	88%	**04	82%
Alliant BULLSEYE	<<locked>>	75%	33199	88%	**42	100%
Alliant POWER PISTOL	<<locked>>	86%	33533	89%	**30	96%
Alliant Sport Pistol	<<locked>>	70%	33591	89%	**45	100%
Alliant UNIQUE	<<locked>>	86%	33257	88%	**52	100%
Baschieri & Pellagri 100	<<locked>>	80%	33112	88%	**30	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	29617	79%	**20	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	77%	33794	90%	**70	100%
Hodgdon Clays	<<locked>>	75%	33779	90%	**5	100%
Hodgdon HS-6 👍	<<locked>>	71%	33765	90%	**75	99%
Hodgdon Longshot 👍	<<locked>>	67%	33243	88%	**65	100%
Hodgdon Universal	<<locked>>	79%	33591	89%	**06	100%
Hodgdon CFE Pistol	<<locked>>	81%	33359	88%	**96	100%
Lovex D036	<<locked>>	65%	33272	88%	**84	98%
[Lovex D037.1]*	<<locked>>	83%	33736	89%	**34	87%
Lovex S011	<<locked>>	69%	33069	88%	**50	100%
Lovex S020	<<locked>>	78%	32982	87%	**09	100%
Maxam CSB 1	<<locked>>	89%	33098	88%	**79	100%
Maxam CSB 2	<<locked>>	86%	33330	88%	**96	100%
Maxam CSB 3	<<locked>>	83%	33649	89%	**63	100%
Maxam CSB 4	<<locked>>	80%	33141	88%	**37	100%
Maxam CSB 5	<<locked>>	74%	32953	87%	**1	100%
Ramshot Silhouette	<<locked>>	71%	33301	88%	**48	100%
Ramshot True Blue	<<locked>>	67%	33895	90%	**68	100%
ReloadSwiss RS 12	<<locked>>	75%	33678	89%	**79	100%
ReloadSwiss RS 20	<<locked>>	89%	33533	89%	**55	100%
ReloadSwiss RS 24	<<locked>>	89%	33214	88%	**17	90%
Rottweil P 801	<<locked>>	70%	33330	88%	**47	100%
Rottweil P 806 👍	<<locked>>	97%	33127	88%	**70	99%
SNPE Vectan A0	<<locked>>	89%	33881	90%	**15	100%
SNPE Vectan BA 9	<<locked>>	80%	33823	90%	**89	100%
SNPE Vectan BA10	<<locked>>	72%	33707	89%	**5	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	95%	33489	89%	**55	99%
SNPE Vectan BA9 1/2	<<locked>>	81%	33388	89%	**93	100%
SNPE Vectan SP 2	<<locked>>	83%	33243	88%	**43	97%
Shooters World Auto Pistol	<<locked>>	65%	33272	88%	**84	98%
[Shooters World Major Pistol]*	<<locked>>	83%	33736	89%	**34	87%
Somchem MP200	<<locked>>	80%	33794	90%	**45	100%
Somchem MS200	<<locked>>	84%	33562	89%	**22	100%
Somchem S221	<<locked>>	75%	33547	89%	**04	93%
Vihtavuori 3N37	<<locked>>	88%	33460	89%	**81	100%
[Vihtavuori 3N38]*	<<locked>>	96%	28747	76%	**45	88%
[Vihtavuori N105]*	<<locked>>	96%	21741	58%	**83	88%
Vihtavuori N310	<<locked>>	64%	33402	89%	**8	100%
Vihtavuori N320	<<locked>>	78%	33446	89%	**50	100%
Vihtavuori N330	<<locked>>	81%	33301	88%	**06	100%
Vihtavuori N340	<<locked>>	84%	32764	87%	**15	100%
Vihtavuori N350 👍	<<locked>>	91%	33402	89%	**75	100%
Winchester 231	<<locked>>	68%	33344	88%	**76	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	77%	17085	45%	**2	86%
ADI AP 70N	<<locked>>	60%	23728	63%	**4	100%
ADI APS 450	<<locked>>	72%	29515	78%	**5	100%
ADI AS 30	<<locked>>	69%	25933	69%	**5	100%
ADI AS 50N	<<locked>>	63%	23250	62%	**8	100%
Accurate No. 2	<<locked>>	62%	20059	53%	**2	98%
Accurate No. 5	<<locked>>	61%	28398	75%	**19	96%
[Accurate No. 7]*	<<locked>>	72%	22350	59%	**66	80%
Accurate Solo 1000	<<locked>>	66%	24265	64%	**5	100%
Accurate Solo 1250	<<locked>>	66%	20001	53%	**9	100%
[Accurate TCM]*	<<locked>>	89%	30139	80%	**68	80%
Alliant BULLSEYE	<<locked>>	62%	23177	61%	**07	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	15954	42%	**9	83%
Alliant Sport Pistol	<<locked>>	62%	26150	69%	**56	100%
Alliant UNIQUE	<<locked>>	63%	17550	47%	**5	99%
Baschieri & Pellagri 100	<<locked>>	68%	23612	63%	**2	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	83%	21654	57%	**5	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	20697	55%	**2	100%
Hodgdon Clays	<<locked>>	72%	31691	84%	**5	100%
Hodgdon HS-6	<<locked>>	62%	24511	65%	**50	96%
Hodgdon Longshot	<<locked>>	61%	26034	69%	**73	98%
Hodgdon Universal	<<locked>>	62%	20595	55%	**2	100%
Hodgdon CFE Pistol	<<locked>>	63%	19798	52%	**5	100%
Lovex D036	<<locked>>	61%	28355	75%	**15	96%
[Lovex D037.1]*	<<locked>>	72%	22350	59%	**66	80%
Lovex S011	<<locked>>	61%	26121	69%	**8	100%
Lovex S020	<<locked>>	61%	19754	52%	**2	100%
Maxam CSB 1	<<locked>>	69%	20450	54%	**2	100%
Maxam CSB 2	<<locked>>	66%	19377	51%	**5	100%
Maxam CSB 3	<<locked>>	66%	21669	57%	**2	100%
Maxam CSB 4	<<locked>>	66%	23554	62%	**2	100%
Maxam CSB 5	<<locked>>	66%	26614	71%	**5	100%
Ramshot Silhouette	<<locked>>	61%	24439	65%	**37	100%
Ramshot True Blue	<<locked>>	61%	28050	74%	**96	99%
ReloadSwiss RS 12	<<locked>>	61%	22495	60%	**5	100%
ReloadSwiss RS 20	<<locked>>	65%	16969	45%	**5	100%
[ReloadSwiss RS 24]*	<<locked>>	72%	19667	52%	**01	80%
Rottweil P 801	<<locked>>	61%	25860	69%	**8	100%
[Rottweil P 806]*	<<locked>>	70%	12966	34%	**9	87%
SNPE Vectan A0	<<locked>>	68%	19725	52%	**2	99%
SNPE Vectan BA 9	<<locked>>	63%	20798	55%	**5	100%
SNPE Vectan BA10	<<locked>>	67%	29501	78%	**5	100%
SNPE Vectan BA7 1/2	<<locked>>	71%	17854	47%	**2	93%
SNPE Vectan BA9 1/2	<<locked>>	62%	19972	53%	**2	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	15824	42%	**8	86%
Shooters World Auto Pistol	<<locked>>	61%	28355	75%	**15	96%
[Shooters World Major Pistol]*	<<locked>>	72%	22350	59%	**66	80%
Somchem MP200	<<locked>>	60%	19072	51%	**8	99%
Somchem MS200	<<locked>>	63%	19203	51%	**5	100%
[Somchem S221]*	<<locked>>	61%	20943	56%	**07	86%
Vihtavuori 3N37	<<locked>>	65%	16984	45%	**8	93%
[Vihtavuori 3N38]*	<<locked>>	80%	18115	48%	**8	80%
[Vihtavuori N105]*	<<locked>>	85%	15534	41%	**5	80%
Vihtavuori N310	<<locked>>	60%	29863	79%	**5	100%
Vihtavuori N320	<<locked>>	64%	22234	59%	**5	100%
Vihtavuori N330	<<locked>>	62%	18898	50%	**8	100%
Vihtavuori N340	<<locked>>	64%	18739	50%	**5	99%
Vihtavuori N350	<<locked>>	68%	17013	45%	**8	94%
Winchester 231	<<locked>>	60%	26818	71%	**04	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