Load data for .32 H&R Magnum + .313 | 78gr | Rim Rock RN Cowboy

Recommended Powder(s): none

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.313 \| 78gr \| Rim Rock RN Cowboy
Manufacturer SKU:	#004
Bullet Weight:	78gr \| 5.1g
Bullet Diameter:	0.313" \| 7.95mm
Bullet Length:	0.471" \| 12.0mm
Caliber:	.32 H&R Magnum load data
Case Length (l3):	1.067" \| 27.1mm
Cartridge Length (C.O.L.):	1.208" \| 30.7mm
Seated Depth:	0.330" \| 8.4mm
Shank Seated Depth:	0.330" \| 8.4mm
Case Capacity:	16.2 Grains of Water \| 1.05 cm³
Primer Size:	Small Pistol (SP)
Max. allowed Pressure:	20305 psi \| 1400 bar
LID:	LID_B10501_C411
Last updated:	2025-08-15

Load data for 50 loads in caliber .32 H&R Magnum with .313 | 78gr | Rim Rock RN Cowboy bullet and 25 powders such as none. 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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Min z (%)
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Max FR*
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Barrel Length (cm)
Safety Buffer (%)
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Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

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.

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 AS 30	<<locked>>	61%	18057	89%	**99	100%
Accurate No. 2	<<locked>>	64%	18260	90%	**68	92%
Accurate Solo 1250	<<locked>>	69%	17695	87%	**65	99%
Alliant UNIQUE	<<locked>>	70%	18144	89%	**24	95%
Baschieri & Pellagri 100	<<locked>>	64%	18043	89%	**32	100%
Hodgdon CFE Pistol	<<locked>>	65%	17883	88%	**75	99%
Hodgdon TrailBoss	<<locked>>	96%	10109	50%	**9	100%
Lovex S020	<<locked>>	64%	17477	86%	**84	97%
Maxam CSB 1	<<locked>>	72%	18246	90%	**71	99%
Maxam CSB 2	<<locked>>	72%	18057	89%	**11	100%
Maxam CSB 3	<<locked>>	65%	17869	88%	**48	100%
Maxam CSB 4	<<locked>>	62%	17695	87%	**32	100%
ReloadSwiss RS 14	<<locked>>	95%	8659	43%	**6	96%
ReloadSwiss RS 20	<<locked>>	74%	17999	89%	**34	97%
[Rottweil P 806]*	<<locked>>	88%	17869	88%	**32	86%
SNPE Vectan A0	<<locked>>	71%	18072	89%	**68	95%
[SNPE Vectan BA7 1/2]*	<<locked>>	78%	18202	90%	**91	86%
SNPE Vectan BA9 1/2	<<locked>>	65%	17956	88%	**68	99%
Somchem MP200	<<locked>>	64%	17912	88%	**91	93%
Somchem MS200	<<locked>>	67%	17927	88%	**81	96%
[Vihtavuori 3N37]*	<<locked>>	74%	18275	90%	**30	88%
Vihtavuori N32C Tin Star	<<locked>>	86%	18043	89%	**02	100%
Vihtavuori N330	<<locked>>	67%	17927	88%	**07	100%
Vihtavuori N340	<<locked>>	70%	18101	89%	**94	95%
[Vihtavuori N350]*	<<locked>>	76%	17753	87%	**14	88%

Max Load - Barrel Length: 5.50''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AS 30	<<locked>>	60%	17274	85%	**79	100%
Accurate No. 2	<<locked>>	62%	16708	82%	**32	91%
Accurate Solo 1250	<<locked>>	60%	13721	68%	**56	97%
Alliant UNIQUE	<<locked>>	61%	13822	68%	**89	91%
Baschieri & Pellagri 100	<<locked>>	60%	15911	78%	**79	100%
Hodgdon CFE Pistol	<<locked>>	62%	15882	78%	**29	98%
Hodgdon TrailBoss	<<locked>>	61%	4931	24%	**9	92%
Lovex S020	<<locked>>	61%	16172	80%	**52	96%
Maxam CSB 1	<<locked>>	61%	13155	65%	**33	96%
Maxam CSB 2	<<locked>>	62%	13373	66%	**86	100%
Maxam CSB 3	<<locked>>	62%	16360	81%	**15	100%
Maxam CSB 4	<<locked>>	60%	16955	83%	**12	100%
[ReloadSwiss RS 14]*	<<locked>>	62%	4670	23%	**9	86%
ReloadSwiss RS 20	<<locked>>	61%	12256	60%	**60	91%
[Rottweil P 806]*	<<locked>>	81%	14098	69%	**11	80%
SNPE Vectan A0	<<locked>>	61%	13764	68%	**43	90%
[SNPE Vectan BA7 1/2]*	<<locked>>	68%	13576	67%	**56	80%
SNPE Vectan BA9 1/2	<<locked>>	61%	15940	79%	**19	98%
Somchem MP200	<<locked>>	60%	15998	79%	**45	92%
Somchem MS200	<<locked>>	60%	14794	73%	**89	93%
[Vihtavuori 3N37]*	<<locked>>	62%	12328	61%	**50	80%
Vihtavuori N32C Tin Star	<<locked>>	62%	9631	47%	**6	100%
Vihtavuori N330	<<locked>>	60%	14359	71%	**19	99%
Vihtavuori N340	<<locked>>	62%	14330	71%	**89	92%
[Vihtavuori N350]*	<<locked>>	65%	12372	61%	**50	80%

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.