Load data for .357 Magnum + .358 | 105gr | Rim Rock TC Cowboy

Recommended Powder(s): Accurate No. 2, Alliant UNIQUE, Hodgdon HS-6, Rottweil P 806, SNPE Vectan BA7 1/2

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 105gr \| Rim Rock TC Cowboy
Manufacturer SKU:	#009
Bullet Weight:	105gr \| 6.8g
Bullet Diameter:	0.358" \| 9.09mm
Bullet Length:	0.525" \| 13.3mm
Caliber:	.357 Magnum load data
Case Length (l3):	1.290" \| 32.8mm
Cartridge Length (C.O.L.):	1.566" \| 39.8mm
Seated Depth:	0.249" \| 6.3mm
Shank Seated Depth:	0.249" \| 6.3mm
Case Capacity:	25.6 Grains of Water \| 1.66 cm³
Primer Size:	Small Pistol Magnum (SPM)
Max. allowed Pressure:	43511 psi \| 3000 bar
LID:	LID_B10535_C513
Last updated:	2025-01-01

Load data for 116 loads in caliber .357 Magnum with .358 | 105gr | Rim Rock TC Cowboy bullet and 58 powders such as Accurate No. 2, Alliant UNIQUE, Hodgdon HS-6, Rottweil P 806, SNPE Vectan BA7 1/2. 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%	32285	74%	**11	95%
ADI AP 70N	<<locked>>	71%	37449	86%	**91	100%
ADI APS 350	<<locked>>	76%	36854	85%	**75	100%
ADI APS 450	<<locked>>	78%	37144	85%	**11	100%
ADI AS 30	<<locked>>	81%	37405	86%	**63	100%
ADI AS 50N	<<locked>>	79%	39131	90%	**45	100%
Accurate No. 2 👍	<<locked>>	77%	37115	85%	**01	100%
Accurate No. 5	<<locked>>	65%	38682	89%	**13	98%
[Accurate No. 7]*	<<locked>>	81%	38014	87%	**39	88%
Accurate Solo 1000	<<locked>>	80%	37826	87%	**06	100%
Accurate Solo 1250	<<locked>>	84%	37014	85%	**58	100%
[Accurate TCM]*	<<locked>>	88%	37333	86%	**09	83%
Alliant BULLSEYE	<<locked>>	75%	37594	86%	**44	100%
Alliant POWER PISTOL	<<locked>>	85%	38464	88%	**65	96%
Alliant UNIQUE 👍	<<locked>>	85%	37231	86%	**47	100%
Baschieri & Pellagri 100	<<locked>>	81%	38450	88%	**19	100%
Hodgdon Clays	<<locked>>	76%	37637	86%	**88	100%
Hodgdon HS-6 👍	<<locked>>	69%	37463	86%	**80	99%
Hodgdon Longshot	<<locked>>	67%	37884	87%	**77	100%
Hodgdon Universal	<<locked>>	80%	38769	89%	**98	100%
Hodgdon TrailBoss	<<locked>>	93%	13285	31%	**37	100%
Lovex D036	<<locked>>	65%	38624	89%	**13	98%
[Lovex D037.1]*	<<locked>>	81%	38014	87%	**39	88%
Lovex S011	<<locked>>	69%	37681	87%	**32	100%
Lovex S020	<<locked>>	76%	36666	84%	**94	100%
Maxam CSB 1	<<locked>>	88%	37188	85%	**55	100%
Maxam CSB 2	<<locked>>	84%	36840	85%	**55	100%
Maxam CSB 3	<<locked>>	84%	38696	89%	**55	100%
Maxam CSB 4	<<locked>>	80%	37347	86%	**16	100%
Maxam CSB 5	<<locked>>	77%	38551	89%	**67	100%
Ramshot Silhouette	<<locked>>	71%	38609	89%	**67	100%
Ramshot True Blue	<<locked>>	66%	38305	88%	**80	100%
ReloadSwiss RS 12	<<locked>>	74%	38043	87%	**52	100%
ReloadSwiss RS 14	<<locked>>	96%	12676	29%	**50	100%
ReloadSwiss RS 20	<<locked>>	87%	37971	87%	**50	100%
ReloadSwiss RS 24	<<locked>>	88%	39030	90%	**59	91%
Rottweil P 801	<<locked>>	68%	36695	84%	**96	100%
Rottweil P 806 👍	<<locked>>	92%	37217	86%	**49	99%
SNPE Vectan A0	<<locked>>	88%	37884	87%	**98	100%
SNPE Vectan BA 9	<<locked>>	79%	36970	85%	**65	100%
SNPE Vectan BA10	<<locked>>	73%	37130	85%	**11	100%
SNPE Vectan BA7 1/2 👍	<<locked>>	92%	36956	85%	**50	99%
SNPE Vectan BA9 1/2	<<locked>>	82%	38595	89%	**98	100%
Shooters World Auto Pistol	<<locked>>	65%	38624	89%	**13	98%
[Shooters World Major Pistol]*	<<locked>>	81%	38014	87%	**39	88%
Somchem MP200	<<locked>>	78%	37159	85%	**40	100%
Somchem MS200	<<locked>>	82%	36941	85%	**11	100%
Somchem S221	<<locked>>	74%	38827	89%	**36	94%
Vihtavuori 3N37	<<locked>>	86%	37260	86%	**83	100%
Vihtavuori 3N38	<<locked>>	97%	35940	83%	**83	90%
Vihtavuori N105	<<locked>>	97%	27499	63%	**94	90%
Vihtavuori N310	<<locked>>	64%	36869	85%	**17	100%
Vihtavuori N320	<<locked>>	78%	38305	88%	**32	100%
Vihtavuori N32C Tin Star	<<locked>>	96%	30937	71%	**52	100%
Vihtavuori N330	<<locked>>	80%	37884	87%	**88	100%
Vihtavuori N340	<<locked>>	83%	36840	85%	**11	100%
Vihtavuori N350	<<locked>>	89%	37971	87%	**90	100%
Winchester 231	<<locked>>	68%	38072	87%	**58	100%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AP 100]*	<<locked>>	68%	15389	35%	**98	81%
ADI AP 70N	<<locked>>	61%	28065	64%	**47	100%
ADI APS 350	<<locked>>	62%	26455	61%	**17	100%
ADI APS 450	<<locked>>	62%	25106	58%	**30	100%
ADI AS 30	<<locked>>	61%	22916	53%	**47	100%
ADI AS 50N	<<locked>>	61%	24787	57%	**22	100%
Accurate No. 2	<<locked>>	62%	22568	52%	**42	98%
Accurate No. 5	<<locked>>	61%	34345	79%	**44	97%
[Accurate No. 7]*	<<locked>>	69%	25063	58%	**06	80%
Accurate Solo 1000	<<locked>>	61%	23670	54%	**89	100%
Accurate Solo 1250	<<locked>>	61%	19580	45%	**66	100%
[Accurate TCM]*	<<locked>>	85%	33011	76%	**37	80%
Alliant BULLSEYE	<<locked>>	62%	25976	60%	**50	100%
[Alliant POWER PISTOL]*	<<locked>>	61%	18594	43%	**29	84%
Alliant UNIQUE	<<locked>>	61%	19203	44%	**02	98%
Baschieri & Pellagri 100	<<locked>>	61%	22075	51%	**70	100%
Hodgdon Clays	<<locked>>	62%	26832	62%	**40	100%
Hodgdon HS-6	<<locked>>	61%	27499	63%	**96	96%
Hodgdon Longshot	<<locked>>	61%	31575	73%	**72	99%
Hodgdon Universal	<<locked>>	61%	23163	53%	**48	100%
Hodgdon TrailBoss	<<locked>>	62%	6947	16%	**1	99%
Lovex D036	<<locked>>	61%	34301	79%	**40	97%
[Lovex D037.1]*	<<locked>>	69%	25063	58%	**06	80%
Lovex S011	<<locked>>	61%	30066	69%	**30	100%
Lovex S020	<<locked>>	61%	22872	53%	**62	100%
Maxam CSB 1	<<locked>>	62%	18695	43%	**34	100%
Maxam CSB 2	<<locked>>	61%	19667	45%	**76	100%
Maxam CSB 3	<<locked>>	60%	20842	48%	**60	100%
Maxam CSB 4	<<locked>>	61%	23351	54%	**93	100%
Maxam CSB 5	<<locked>>	61%	25744	59%	**86	100%
Ramshot Silhouette	<<locked>>	61%	27833	64%	**93	100%
Ramshot True Blue	<<locked>>	61%	31937	73%	**78	99%
ReloadSwiss RS 12	<<locked>>	61%	26034	60%	**78	100%
ReloadSwiss RS 14	<<locked>>	61%	6222	14%	**8	94%
ReloadSwiss RS 20	<<locked>>	61%	17535	40%	**76	99%
[ReloadSwiss RS 24]*	<<locked>>	71%	22510	52%	**17	80%
Rottweil P 801	<<locked>>	61%	29588	68%	**04	100%
[Rottweil P 806]*	<<locked>>	61%	12009	28%	**58	81%
SNPE Vectan A0	<<locked>>	61%	18434	42%	**40	98%
SNPE Vectan BA 9	<<locked>>	61%	22669	52%	**25	100%
SNPE Vectan BA10	<<locked>>	60%	27253	63%	**66	100%
[SNPE Vectan BA7 1/2]*	<<locked>>	62%	15708	36%	**94	88%
SNPE Vectan BA9 1/2	<<locked>>	60%	21408	49%	**06	100%
Shooters World Auto Pistol	<<locked>>	61%	34301	79%	**40	97%
[Shooters World Major Pistol]*	<<locked>>	69%	25063	58%	**06	80%
Somchem MP200	<<locked>>	61%	22902	53%	**85	99%
Somchem MS200	<<locked>>	61%	20740	48%	**09	99%
[Somchem S221]*	<<locked>>	61%	24265	56%	**53	86%
Vihtavuori 3N37	<<locked>>	61%	17347	40%	**63	91%
[Vihtavuori 3N38]*	<<locked>>	80%	21654	50%	**94	81%
[Vihtavuori N105]*	<<locked>>	83%	18289	42%	**62	81%
Vihtavuori N310	<<locked>>	61%	34040	78%	**78	100%
Vihtavuori N320	<<locked>>	61%	23308	54%	**06	100%
Vihtavuori N32C Tin Star	<<locked>>	61%	13503	31%	**30	100%
Vihtavuori N330	<<locked>>	61%	21640	50%	**29	100%
Vihtavuori N340	<<locked>>	62%	19885	46%	**06	99%
Vihtavuori N350	<<locked>>	61%	15896	37%	**24	90%
Winchester 231	<<locked>>	61%	30792	71%	**67	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