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

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 125gr \| Rim Rock TC Cowboy
Manufacturer SKU:	#012
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_B10538_C1223
Last updated:	2026-01-20

Load data for 120 loads in caliber 9 mm Mauser with .358 | 125gr | Rim Rock TC Cowboy bullet and 60 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>>	97%	29689	79%	**68	94%
ADI AP 70N	<<locked>>	70%	33214	88%	**35	100%
ADI APS 350	<<locked>>	74%	33475	89%	**45	100%
ADI APS 450	<<locked>>	76%	33895	90%	**84	100%
ADI AS 30	<<locked>>	78%	33199	88%	**27	100%
ADI AS 50N	<<locked>>	75%	33431	89%	**73	100%
Accurate No. 2	<<locked>>	77%	33924	90%	**55	100%
Accurate No. 5	<<locked>>	63%	33446	89%	**27	97%
[Accurate No. 7]*	<<locked>>	81%	33272	88%	**73	86%
Accurate Solo 1000	<<locked>>	78%	33910	90%	**60	100%
Accurate Solo 1250	<<locked>>	84%	33663	89%	**19	100%
Alliant BULLSEYE	<<locked>>	74%	33750	89%	**88	100%
Alliant POWER PISTOL	<<locked>>	85%	33881	90%	**83	95%
Alliant Sport Pistol	<<locked>>	69%	33518	89%	**91	100%
Alliant UNIQUE 👍	<<locked>>	85%	33779	90%	**04	100%
Baschieri & Pellagri 100	<<locked>>	79%	33649	89%	**66	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	96%	31183	83%	**57	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	75%	33823	90%	**89	100%
Hodgdon Clays	<<locked>>	73%	32996	87%	**48	100%
Hodgdon HS-6	<<locked>>	69%	33518	89%	**07	98%
Hodgdon Longshot 👍	<<locked>>	66%	33823	90%	**17	99%
Hodgdon Universal	<<locked>>	77%	33214	88%	**35	100%
Hodgdon CFE Pistol	<<locked>>	80%	33518	89%	**35	100%
Lovex D036	<<locked>>	64%	33881	90%	**40	97%
[Lovex D037.1]*	<<locked>>	81%	33272	88%	**73	86%
Lovex S011	<<locked>>	68%	33895	90%	**89	100%
Lovex S020	<<locked>>	76%	33272	88%	**52	100%
Maxam CSB 1	<<locked>>	88%	33649	89%	**19	100%
Maxam CSB 2	<<locked>>	84%	33373	88%	**22	100%
Maxam CSB 3	<<locked>>	81%	33185	88%	**86	100%
Maxam CSB 4	<<locked>>	79%	33808	90%	**76	100%
Maxam CSB 5	<<locked>>	73%	33446	89%	**17	100%
Ramshot Silhouette	<<locked>>	69%	33460	89%	**91	100%
Ramshot True Blue 👍	<<locked>>	65%	33547	89%	**04	99%
ReloadSwiss RS 12	<<locked>>	73%	33562	89%	**09	100%
ReloadSwiss RS 20	<<locked>>	87%	33924	90%	**01	100%
[ReloadSwiss RS 24]*	<<locked>>	87%	33301	88%	**63	89%
Rottweil P 801	<<locked>>	68%	33808	90%	**76	100%
Rottweil P 806 👍	<<locked>>	95%	33765	90%	**16	99%
SNPE Vectan A0	<<locked>>	87%	33823	90%	**48	100%
SNPE Vectan BA 9	<<locked>>	78%	33475	89%	**16	100%
SNPE Vectan BA10	<<locked>>	71%	33895	90%	**84	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	92%	33518	89%	**91	99%
SNPE Vectan BA9 1/2	<<locked>>	79%	33272	88%	**29	100%
SNPE Vectan SP 2	<<locked>>	81%	33518	89%	**86	96%
Shooters World Auto Pistol	<<locked>>	64%	33881	90%	**40	97%
[Shooters World Major Pistol]*	<<locked>>	81%	33272	88%	**73	86%
Somchem MP200	<<locked>>	77%	33286	88%	**85	100%
Somchem MS200	<<locked>>	82%	33533	89%	**62	100%
Somchem S221	<<locked>>	73%	33591	89%	**37	92%
Vihtavuori 3N37	<<locked>>	86%	33431	89%	**17	99%
[Vihtavuori 3N38]*	<<locked>>	96%	30864	82%	**11	88%
[Vihtavuori N105]*	<<locked>>	97%	23902	63%	**45	88%
Vihtavuori N310	<<locked>>	63%	33228	88%	**81	100%
Vihtavuori N320	<<locked>>	77%	33765	90%	**76	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	28500	76%	**45	100%
Vihtavuori N330	<<locked>>	80%	33910	90%	**42	100%
Vihtavuori N340	<<locked>>	82%	33460	89%	**58	100%
Vihtavuori N350	<<locked>>	89%	33663	89%	**24	100%
Winchester 231	<<locked>>	66%	33620	89%	**12	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	69%	14156	38%	**20	80%
ADI AP 70N	<<locked>>	61%	25585	68%	**20	100%
ADI APS 350	<<locked>>	62%	25353	67%	**37	100%
ADI APS 450	<<locked>>	61%	23424	62%	**43	100%
ADI AS 30	<<locked>>	62%	22176	59%	**66	100%
ADI AS 50N	<<locked>>	61%	22597	60%	**19	100%
Accurate No. 2	<<locked>>	60%	19609	52%	**19	97%
Accurate No. 5	<<locked>>	61%	30211	80%	**78	96%
[Accurate No. 7]*	<<locked>>	72%	24352	65%	**19	80%
Accurate Solo 1000	<<locked>>	62%	22278	59%	**96	100%
Accurate Solo 1250	<<locked>>	61%	17854	47%	**66	100%
Alliant BULLSEYE	<<locked>>	60%	22814	61%	**07	100%
[Alliant POWER PISTOL]*	<<locked>>	60%	16244	43%	**09	82%
Alliant Sport Pistol	<<locked>>	62%	27108	72%	**89	100%
Alliant UNIQUE	<<locked>>	62%	18144	48%	**19	98%
Baschieri & Pellagri 100	<<locked>>	61%	20320	54%	**73	100%
Baschieri & Pellagri 102 Pistol	<<locked>>	60%	11951	32%	**9	100%
Baschieri & Pellagri 103 Pistol	<<locked>>	62%	22031	58%	**35	100%
Hodgdon Clays	<<locked>>	62%	25556	68%	**53	100%
Hodgdon HS-6	<<locked>>	61%	25179	67%	**76	95%
Hodgdon Longshot	<<locked>>	61%	28239	75%	**25	98%
Hodgdon Universal	<<locked>>	60%	20769	55%	**38	100%
Hodgdon CFE Pistol	<<locked>>	61%	19580	52%	**15	100%
Lovex D036	<<locked>>	61%	30168	80%	**78	96%
[Lovex D037.1]*	<<locked>>	72%	24352	65%	**19	80%
Lovex S011	<<locked>>	60%	26992	72%	**98	100%
Lovex S020	<<locked>>	61%	20363	54%	**45	100%
Maxam CSB 1	<<locked>>	62%	17056	45%	**47	100%
Maxam CSB 2	<<locked>>	62%	17898	47%	**89	100%
Maxam CSB 3	<<locked>>	61%	19740	52%	**83	100%
Maxam CSB 4	<<locked>>	60%	20900	55%	**89	100%
Maxam CSB 5	<<locked>>	61%	24033	64%	**93	100%
Ramshot Silhouette	<<locked>>	62%	26005	69%	**73	100%
Ramshot True Blue	<<locked>>	61%	28674	76%	**29	98%
ReloadSwiss RS 12	<<locked>>	61%	23554	62%	**75	100%
ReloadSwiss RS 20	<<locked>>	61%	15911	42%	**83	99%
[ReloadSwiss RS 24]*	<<locked>>	72%	21132	56%	**27	80%
Rottweil P 801	<<locked>>	62%	28065	74%	**04	100%
[Rottweil P 806]*	<<locked>>	63%	10718	28%	**01	80%
SNPE Vectan A0	<<locked>>	60%	16650	44%	**43	97%
SNPE Vectan BA 9	<<locked>>	61%	20523	54%	**19	100%
SNPE Vectan BA10	<<locked>>	61%	26223	70%	**86	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	61%	13880	37%	**7	87%
SNPE Vectan BA9 1/2	<<locked>>	62%	20450	54%	**25	100%
[SNPE Vectan SP 2]*	<<locked>>	61%	17216	46%	**61	86%
Shooters World Auto Pistol	<<locked>>	61%	30168	80%	**78	96%
[Shooters World Major Pistol]*	<<locked>>	72%	24352	65%	**19	80%
Somchem MP200	<<locked>>	60%	20204	54%	**55	98%
Somchem MS200	<<locked>>	61%	18913	50%	**12	99%
[Somchem S221]*	<<locked>>	61%	22002	58%	**30	85%
Vihtavuori 3N37	<<locked>>	61%	15432	41%	**73	90%
[Vihtavuori 3N38]*	<<locked>>	82%	20160	53%	**04	80%
[Vihtavuori N105]*	<<locked>>	86%	17172	46%	**75	80%
Vihtavuori N310	<<locked>>	61%	31546	84%	**61	100%
Vihtavuori N320	<<locked>>	60%	20943	56%	**02	100%
Vihtavuori N32C Tin Star	<<locked>>	67%	14649	39%	**5	100%
Vihtavuori N330	<<locked>>	61%	19377	51%	**29	100%
Vihtavuori N340	<<locked>>	60%	17202	46%	**79	98%
[Vihtavuori N350]*	<<locked>>	61%	14272	38%	**37	89%
Winchester 231	<<locked>>	60%	27992	74%	**37	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