Load data for 9 mm Mauser + .358 | 125gr | Rim Rock RNFP Cowboy

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 125gr \| Rim Rock RNFP Cowboy
Manufacturer SKU:	#011
Bullet Weight:	125gr \| 8.1g
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_B10537_C1223
Last updated:	2026-01-20

Load data for 112 loads in caliber 9 mm Mauser with .358 | 125gr | Rim Rock RNFP Cowboy bullet and 56 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%	20900	55%	**86	83%
ADI AP 70N	<<locked>>	81%	33460	89%	**40	100%
ADI APS 350	<<locked>>	83%	33794	90%	**50	100%
ADI APS 450	<<locked>>	84%	33214	88%	**76	100%
ADI AS 30	<<locked>>	90%	33939	90%	**35	100%
ADI AS 50N	<<locked>>	85%	32953	87%	**71	100%
Accurate No. 2	<<locked>>	87%	33605	89%	**20	99%
Accurate No. 5	<<locked>>	73%	33924	90%	**02	93%
Accurate Solo 1000	<<locked>>	88%	33910	90%	**61	100%
Accurate Solo 1250 👍	<<locked>>	96%	33866	90%	**20	100%
Alliant BULLSEYE 👍	<<locked>>	84%	33576	89%	**76	100%
Alliant POWER PISTOL	<<locked>>	96%	32851	87%	**35	90%
Alliant Sport Pistol	<<locked>>	78%	32822	87%	**70	100%
Alliant UNIQUE 👍	<<locked>>	96%	31937	85%	**73	100%
Baschieri & Pellagri 100	<<locked>>	89%	32547	86%	**55	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	97%	22698	60%	**66	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	86%	33852	90%	**01	100%
Hodgdon Clays	<<locked>>	81%	32938	87%	**53	100%
Hodgdon HP38	<<locked>>	67%	33156	88%	**94	100%
Hodgdon HS-6	<<locked>>	79%	33359	88%	**83	95%
Hodgdon Longshot	<<locked>>	76%	33533	89%	**86	97%
Hodgdon Universal	<<locked>>	90%	33460	89%	**40	100%
Hodgdon CFE Pistol 👍	<<locked>>	92%	33504	89%	**34	100%
Lovex D036	<<locked>>	73%	33881	90%	**09	93%
Lovex S011	<<locked>>	76%	32953	87%	**78	100%
Lovex S020	<<locked>>	88%	33286	88%	**43	100%
Maxam CSB 1	<<locked>>	96%	30472	81%	**78	100%
Maxam CSB 2	<<locked>>	96%	31154	83%	**17	100%
Maxam CSB 3	<<locked>>	94%	33736	89%	**98	100%
Maxam CSB 4	<<locked>>	90%	33605	89%	**75	100%
Maxam CSB 5	<<locked>>	84%	33576	89%	**25	100%
Ramshot Silhouette	<<locked>>	80%	33649	89%	**76	99%
Ramshot True Blue	<<locked>>	74%	33605	89%	**80	97%
Ramshot Zip	<<locked>>	68%	33924	90%	**14	100%
ReloadSwiss RS 12	<<locked>>	86%	33924	90%	**30	100%
ReloadSwiss RS 20	<<locked>>	96%	30037	80%	**53	100%
Rottweil P 801	<<locked>>	78%	33156	88%	**84	100%
[Rottweil P 806]*	<<locked>>	96%	20146	53%	**04	89%
SNPE Vectan A0	<<locked>>	96%	31647	84%	**11	100%
SNPE Vectan BA 9	<<locked>>	89%	33808	90%	**14	100%
SNPE Vectan BA10	<<locked>>	78%	33199	88%	**76	100%
SNPE Vectan BA7 1/2	<<locked>>	96%	26614	71%	**68	93%
SNPE Vectan BA9 1/2	<<locked>>	90%	32547	86%	**17	100%
SNPE Vectan SP 2	<<locked>>	95%	33881	90%	**75	93%
Shooters World Auto Pistol	<<locked>>	73%	33881	90%	**09	93%
Somchem MP200	<<locked>>	89%	33243	88%	**66	100%
Somchem MS200	<<locked>>	93%	33083	88%	**47	100%
[Somchem S221]*	<<locked>>	84%	33518	89%	**02	87%
Vihtavuori 3N37	<<locked>>	97%	31676	84%	**83	97%
Vihtavuori N310	<<locked>>	71%	32880	87%	**89	100%
Vihtavuori N320	<<locked>>	88%	33301	88%	**81	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	21089	56%	**8	100%
Vihtavuori N330 👍	<<locked>>	91%	32822	87%	**40	100%
Vihtavuori N340	<<locked>>	95%	33156	88%	**50	100%
Vihtavuori N350	<<locked>>	97%	28819	76%	**37	96%
Winchester 231	<<locked>>	76%	33924	90%	**14	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	91%	18420	49%	**37	80%
ADI AP 70N	<<locked>>	60%	18478	49%	**20	100%
ADI APS 350	<<locked>>	66%	23511	62%	**8	100%
ADI APS 450	<<locked>>	64%	20842	55%	**5	100%
ADI AS 30	<<locked>>	63%	17956	48%	**2	100%
ADI AS 50N	<<locked>>	62%	17941	48%	**8	100%
Accurate No. 2	<<locked>>	62%	15809	42%	**5	90%
[Accurate No. 5]*	<<locked>>	62%	22742	60%	**25	87%
Accurate Solo 1000	<<locked>>	62%	17680	47%	**5	100%
Accurate Solo 1250	<<locked>>	65%	14692	39%	**2	98%
Alliant BULLSEYE	<<locked>>	62%	18347	49%	**24	96%
[Alliant POWER PISTOL]*	<<locked>>	77%	19160	51%	**86	80%
Alliant Sport Pistol	<<locked>>	60%	19682	52%	**53	96%
Alliant UNIQUE	<<locked>>	63%	13431	36%	**9	91%
Baschieri & Pellagri 100	<<locked>>	63%	16346	43%	**2	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	79%	14533	39%	**5	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	61%	15722	42%	**8	100%
Hodgdon Clays	<<locked>>	65%	22669	60%	**8	100%
Hodgdon HP38	<<locked>>	62%	27963	74%	**32	100%
[Hodgdon HS-6]*	<<locked>>	61%	17927	48%	**24	85%
Hodgdon Longshot	<<locked>>	61%	20392	54%	**79	90%
Hodgdon Universal	<<locked>>	61%	15780	42%	**8	99%
Hodgdon CFE Pistol	<<locked>>	62%	14721	39%	**2	98%
[Lovex D036]*	<<locked>>	62%	22698	60%	**25	87%
Lovex S011	<<locked>>	61%	20929	55%	**14	100%
Lovex S020	<<locked>>	62%	14982	40%	**8	95%
Maxam CSB 1	<<locked>>	68%	15200	40%	**2	98%
Maxam CSB 2	<<locked>>	65%	13242	35%	**8	100%
Maxam CSB 3	<<locked>>	63%	15331	41%	**2	100%
Maxam CSB 4	<<locked>>	61%	16012	42%	**2	100%
Maxam CSB 5	<<locked>>	60%	18014	48%	**5	100%
Ramshot Silhouette	<<locked>>	61%	18637	49%	**40	94%
Ramshot True Blue	<<locked>>	61%	21016	56%	**83	90%
Ramshot Zip	<<locked>>	61%	27035	72%	**29	100%
ReloadSwiss RS 12	<<locked>>	62%	16476	44%	**8	100%
ReloadSwiss RS 20	<<locked>>	65%	12836	34%	**2	93%
Rottweil P 801	<<locked>>	61%	19928	53%	**14	100%
[Rottweil P 806]*	<<locked>>	83%	13227	35%	**20	80%
SNPE Vectan A0	<<locked>>	67%	15142	40%	**2	93%
SNPE Vectan BA 9	<<locked>>	62%	16128	43%	**5	97%
SNPE Vectan BA10	<<locked>>	61%	21596	57%	**8	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	73%	14460	38%	**5	83%
SNPE Vectan BA9 1/2	<<locked>>	61%	14924	40%	**5	98%
[SNPE Vectan SP 2]*	<<locked>>	73%	16621	44%	**66	80%
[Shooters World Auto Pistol]*	<<locked>>	62%	22698	60%	**25	87%
Somchem MP200	<<locked>>	61%	14939	40%	**8	91%
Somchem MS200	<<locked>>	62%	14547	39%	**9	93%
[Somchem S221]*	<<locked>>	72%	22756	60%	**32	80%
[Vihtavuori 3N37]*	<<locked>>	67%	13111	35%	**8	83%
Vihtavuori N310	<<locked>>	62%	25527	68%	**07	100%
Vihtavuori N320	<<locked>>	61%	15722	42%	**8	100%
Vihtavuori N32C Tin Star	<<locked>>	88%	17318	46%	**2	100%
Vihtavuori N330	<<locked>>	61%	13227	35%	**5	98%
Vihtavuori N340	<<locked>>	65%	14388	38%	**8	93%
[Vihtavuori N350]*	<<locked>>	70%	13358	35%	**2	83%
Winchester 231	<<locked>>	61%	21669	57%	**50	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