Load data for .357 Maximum + .358 | 130gr | Rim Rock RNFP Cowboy

Recommended Powder(s): ADI AP 100, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350

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:	.357 Maximum load data
Case Length (l3):	1.600" \| 40.6mm
Cartridge Length (C.O.L.):	1.662" \| 42.2mm
Seated Depth:	0.504" \| 12.8mm
Shank Seated Depth:	0.504" \| 12.8mm
Case Capacity:	33.6 Grains of Water \| 2.18 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B10539_C515
Last updated:	2025-01-01

Load data for 118 loads in caliber .357 Maximum with .358 | 130gr | Rim Rock RNFP Cowboy bullet and 59 powders such as ADI AP 100, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350. 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%	39523	88%	**65	99%
ADI AP 70N	<<locked>>	66%	38247	85%	**24	100%
ADI APS 350	<<locked>>	74%	38667	86%	**50	100%
ADI APS 450	<<locked>>	77%	39929	89%	**96	100%
ADI AS 30	<<locked>>	76%	38566	86%	**32	100%
ADI AS 50N	<<locked>>	72%	38232	85%	**71	100%
Accurate No. 2	<<locked>>	73%	38653	86%	**67	100%
Accurate No. 7	<<locked>>	75%	39827	89%	**31	94%
[Accurate No. 9]*	<<locked>>	84%	40422	90%	**27	88%
Accurate Solo 1000	<<locked>>	76%	38972	87%	**65	100%
Accurate Solo 1250	<<locked>>	79%	38856	86%	**17	100%
[Accurate TCM]*	<<locked>>	83%	39363	88%	**14	89%
[Alliant 2400]*	<<locked>>	93%	38899	87%	**14	84%
Alliant BLUE DOT	<<locked>>	97%	39914	89%	**24	93%
Alliant BULLSEYE	<<locked>>	70%	39392	88%	**06	100%
Alliant POWER PISTOL	<<locked>>	79%	39798	89%	**14	99%
Alliant UNIQUE	<<locked>>	79%	38276	85%	**86	100%
Baschieri & Pellagri 100	<<locked>>	77%	39943	89%	**78	100%
Hodgdon Clays	<<locked>>	74%	39407	88%	**76	100%
Hodgdon HS-6	<<locked>>	64%	38334	85%	**26	100%
Hodgdon Longshot	<<locked>>	62%	39769	88%	**45	100%
Hodgdon Universal	<<locked>>	74%	39552	88%	**44	100%
Hodgdon TrailBoss	<<locked>>	96%	16737	37%	**7	100%
Lovex D037.1	<<locked>>	75%	39827	89%	**31	94%
[Lovex D037.2]*	<<locked>>	82%	39494	88%	**17	88%
Lovex S011	<<locked>>	65%	38928	87%	**94	100%
Lovex S020	<<locked>>	73%	40219	89%	**73	100%
Maxam CSB 1	<<locked>>	83%	38972	87%	**14	100%
Maxam CSB 2	<<locked>>	79%	39595	88%	**24	100%
Maxam CSB 3	<<locked>>	78%	38986	87%	**94	100%
Maxam CSB 4	<<locked>>	76%	38841	86%	**68	100%
Maxam CSB 5	<<locked>>	73%	39711	88%	**29	100%
[Ramshot Enforcer]*	<<locked>>	94%	38711	86%	**34	86%
Ramshot Silhouette	<<locked>>	65%	38218	85%	**86	100%
ReloadSwiss RS 12	<<locked>>	69%	39015	87%	**98	100%
ReloadSwiss RS 14	<<locked>>	94%	14765	33%	**4	100%
ReloadSwiss RS 20	<<locked>>	80%	39189	87%	**93	100%
ReloadSwiss RS 24	<<locked>>	81%	39204	87%	**14	96%
Rottweil P 801	<<locked>>	65%	39856	89%	**78	100%
Rottweil P 806	<<locked>>	85%	39885	89%	**21	100%
SNPE Vectan A0	<<locked>>	82%	38305	85%	**47	100%
SNPE Vectan BA 9	<<locked>>	75%	39682	88%	**30	100%
SNPE Vectan BA10	<<locked>>	72%	39929	89%	**96	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	88%	39813	89%	**35	100%
SNPE Vectan BA9 1/2	<<locked>>	76%	39117	87%	**27	100%
[Shooters World Heavy Pistol]*	<<locked>>	82%	39494	88%	**17	88%
Shooters World Major Pistol	<<locked>>	75%	39827	89%	**31	94%
Somchem MP200	<<locked>>	74%	40350	90%	**03	100%
Somchem MS200	<<locked>>	78%	38856	86%	**70	100%
Somchem S221	<<locked>>	69%	39987	89%	**91	98%
Vihtavuori 3N37 👍	<<locked>>	79%	38537	86%	**35	100%
Vihtavuori 3N38	<<locked>>	91%	38392	85%	**88	96%
Vihtavuori N105	<<locked>>	96%	36260	81%	**04	98%
Vihtavuori N320	<<locked>>	74%	40248	90%	**88	100%
Vihtavuori N32C Tin Star	<<locked>>	97%	37028	82%	**73	100%
Vihtavuori N330	<<locked>>	75%	40277	90%	**47	100%
Vihtavuori N340	<<locked>>	78%	38798	86%	**73	100%
Vihtavuori N350 👍	<<locked>>	83%	39015	87%	**39	100%
Winchester 231	<<locked>>	63%	38319	85%	**01	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	61%	15200	34%	**83	86%
ADI AP 70N	<<locked>>	61%	33489	74%	**62	100%
ADI APS 350	<<locked>>	61%	28456	63%	**19	100%
ADI APS 450	<<locked>>	62%	28108	63%	**45	100%
ADI AS 30	<<locked>>	61%	26556	59%	**68	100%
ADI AS 50N	<<locked>>	61%	28645	64%	**40	100%
Accurate No. 2	<<locked>>	61%	26324	59%	**86	100%
[Accurate No. 7]*	<<locked>>	61%	23917	53%	**45	84%
[Accurate No. 9]*	<<locked>>	73%	27601	61%	**04	81%
Accurate Solo 1000	<<locked>>	61%	27166	60%	**01	100%
Accurate Solo 1250	<<locked>>	61%	23105	51%	**94	100%
[Accurate TCM]*	<<locked>>	70%	25498	57%	**65	81%
[Alliant 2400]*	<<locked>>	87%	31502	70%	**06	80%
[Alliant BLUE DOT]*	<<locked>>	73%	20581	46%	**57	80%
Alliant BULLSEYE	<<locked>>	61%	29950	67%	**71	100%
Alliant POWER PISTOL	<<locked>>	61%	22858	51%	**09	92%
Alliant UNIQUE	<<locked>>	61%	23772	53%	**63	100%
Baschieri & Pellagri 100	<<locked>>	61%	25643	57%	**88	100%
Hodgdon Clays	<<locked>>	61%	28979	64%	**38	100%
Hodgdon HS-6	<<locked>>	61%	34200	76%	**76	100%
Hodgdon Longshot	<<locked>>	61%	37652	84%	**16	100%
Hodgdon Universal	<<locked>>	61%	28079	62%	**86	100%
Hodgdon TrailBoss	<<locked>>	62%	8398	19%	**1	100%
[Lovex D037.1]*	<<locked>>	61%	23917	53%	**45	84%
[Lovex D037.2]*	<<locked>>	71%	27035	60%	**04	81%
Lovex S011	<<locked>>	61%	33939	75%	**32	100%
Lovex S020	<<locked>>	61%	28079	62%	**06	100%
Maxam CSB 1	<<locked>>	61%	22133	49%	**75	100%
Maxam CSB 2	<<locked>>	61%	23888	53%	**04	100%
Maxam CSB 3	<<locked>>	62%	25382	56%	**07	100%
Maxam CSB 4	<<locked>>	61%	27093	60%	**17	100%
Maxam CSB 5	<<locked>>	61%	29573	66%	**04	100%
[Ramshot Enforcer]*	<<locked>>	87%	31096	69%	**03	81%
Ramshot Silhouette	<<locked>>	61%	33823	75%	**34	100%
ReloadSwiss RS 12	<<locked>>	61%	31676	70%	**09	100%
ReloadSwiss RS 14	<<locked>>	61%	7614	17%	**8	99%
ReloadSwiss RS 20	<<locked>>	61%	22350	50%	**43	100%
[ReloadSwiss RS 24]*	<<locked>>	61%	20523	46%	**57	84%
Rottweil P 801	<<locked>>	61%	34983	78%	**22	100%
Rottweil P 806	<<locked>>	61%	16795	37%	**94	93%
SNPE Vectan A0	<<locked>>	62%	22437	50%	**01	100%
SNPE Vectan BA 9	<<locked>>	62%	26919	60%	**63	100%
SNPE Vectan BA10	<<locked>>	60%	30313	67%	**78	100%
SNPE Vectan BA7 1/2	<<locked>>	61%	19029	42%	**68	96%
SNPE Vectan BA9 1/2	<<locked>>	61%	25976	58%	**47	100%
[Shooters World Heavy Pistol]*	<<locked>>	71%	27035	60%	**04	81%
[Shooters World Major Pistol]*	<<locked>>	61%	23917	53%	**45	84%
Somchem MP200	<<locked>>	61%	27470	61%	**22	100%
Somchem MS200	<<locked>>	60%	24236	54%	**47	100%
Somchem S221	<<locked>>	61%	30429	68%	**44	95%
Vihtavuori 3N37	<<locked>>	61%	21480	48%	**50	98%
[Vihtavuori 3N38]*	<<locked>>	63%	16273	36%	**38	80%
[Vihtavuori N105]*	<<locked>>	67%	14199	32%	**15	81%
Vihtavuori N320	<<locked>>	60%	27586	61%	**24	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	16520	37%	**8	100%
Vihtavuori N330	<<locked>>	61%	25991	58%	**60	100%
Vihtavuori N340	<<locked>>	61%	23525	52%	**40	100%
Vihtavuori N350	<<locked>>	61%	19870	44%	**07	97%
Winchester 231	<<locked>>	61%	35911	80%	**75	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