Load data for .350 Mag. Rigby + .357 | 148gr | H&N WC H

Recommended Powder(s): Alliant AR-Comp, Alliant Reloder-10x

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 148gr \| H&N WC H
Bullet Weight:	148gr \| 9.6g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.661" \| 16.8mm
Caliber:	.350 Mag. Rigby load data
Case Length (l3):	2.750" \| 69.8mm
Cartridge Length (C.O.L.):	2.750" \| 69.8mm
Seated Depth:	0.661" \| 16.8mm
Shank Seated Depth:	0.315" \| 8.0mm
Case Capacity:	91.1 Grains of Water \| 5.92 cm³
Primer Size:	Large Rifle Magnum (LRM)
Max. allowed Pressure:	44962 psi \| 3100 bar
LID:	LID_B7475_C501
Last updated:	2025-11-10

Load data for 88 loads in caliber .350 Mag. Rigby with .357 | 148gr | H&N WC H bullet and 44 powders such as Alliant AR-Comp, Alliant Reloder-10x. 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 AR 2219	<<locked>>	86%	40248	90%	**45	97%
Accurate 2015	<<locked>>	91%	40059	89%	**99	99%
[Accurate 2230]*	<<locked>>	89%	40016	89%	**79	92%
[Accurate 2460]*	<<locked>>	90%	40350	90%	**09	94%
Accurate 2495	<<locked>>	97%	38058	85%	**54	98%
Accurate 2520	<<locked>>	95%	40205	89%	**61	95%
[Accurate 4064]*	<<locked>>	97%	30937	69%	**58	93%
Alliant AR-Comp 👍	<<locked>>	95%	40161	89%	**94	100%
Alliant Reloder-10x 👍	<<locked>>	88%	40466	90%	**35	99%
Baschieri & Pellagri 106	<<locked>>	85%	40466	90%	**20	98%
[Hodgdon BL-C2]*	<<locked>>	94%	40234	89%	**64	93%
[Hodgdon Benchmark]*	<<locked>>	90%	40045	89%	**49	94%
Hodgdon H322	<<locked>>	91%	39958	89%	**31	97%
Hodgdon H335	<<locked>>	86%	40321	90%	**41	96%
Hodgdon TrailBoss	<<locked>>	96%	29501	66%	**46	100%
IMR 3031	<<locked>>	97%	36376	81%	**12	97%
IMR 4198	<<locked>>	86%	40248	90%	**76	100%
[IMR 8208 XBR]*	<<locked>>	93%	40451	90%	**09	93%
[Lovex D073.4]*	<<locked>>	88%	40277	90%	**92	94%
[Lovex D073.5]*	<<locked>>	90%	39987	89%	**02	94%
Lovex D073.6	<<locked>>	97%	39233	87%	**41	95%
Norma 200	<<locked>>	85%	40321	90%	**15	100%
[Norma 201]*	<<locked>>	96%	40321	90%	**12	93%
Norma 202	<<locked>>	96%	39885	89%	**25	96%
ReloadSwiss RS 14	<<locked>>	96%	29066	65%	**85	100%
ReloadSwiss RS 40	<<locked>>	89%	40103	89%	**02	95%
Rottweil R 901	<<locked>>	94%	39871	89%	**09	96%
[Rottweil R 902]*	<<locked>>	97%	38377	85%	**49	92%
SNPE Vectan SP 10	<<locked>>	85%	40292	90%	**28	96%
SNPE Vectan Tubal 3000	<<locked>>	93%	40132	89%	**40	96%
SNPE Vectan Tubal 5000	<<locked>>	97%	35462	79%	**41	96%
Shooters World Match Rifle	<<locked>>	97%	39233	87%	**41	95%
[Shooters World Tactical Rifle]*	<<locked>>	86%	39885	89%	**46	92%
[Somchem S321]*	<<locked>>	91%	40379	90%	**31	93%
Somchem S335	<<locked>>	95%	40466	90%	**72	97%
Vihtavuori N120	<<locked>>	85%	40422	90%	**46	100%
Vihtavuori N130	<<locked>>	90%	40248	90%	**63	99%
Vihtavuori N133	<<locked>>	96%	40045	89%	**63	98%
Vihtavuori N135	<<locked>>	97%	29631	66%	**82	95%
Vihtavuori N140	<<locked>>	97%	38754	86%	**72	96%
[Vihtavuori N530]*	<<locked>>	91%	40147	89%	**12	93%
Vihtavuori N540	<<locked>>	97%	38043	85%	**86	95%
[Winchester 748]*	<<locked>>	91%	39972	89%	**51	94%
[Winchester StaBALL Match]*	<<locked>>	89%	40263	90%	**35	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2219	<<locked>>	81%	33866	75%	**87	95%
Accurate 2015	<<locked>>	81%	27485	61%	**77	95%
[Accurate 2230]*	<<locked>>	86%	35215	78%	**64	90%
[Accurate 2460]*	<<locked>>	83%	30705	68%	**69	90%
[Accurate 2495]*	<<locked>>	82%	21393	48%	**46	90%
[Accurate 2520]*	<<locked>>	87%	28921	64%	**69	90%
[Accurate 4064]*	<<locked>>	92%	25730	57%	**94	90%
Alliant AR-Comp	<<locked>>	81%	24352	54%	**38	95%
Alliant Reloder-10x	<<locked>>	81%	31270	70%	**99	97%
Baschieri & Pellagri 106	<<locked>>	81%	35012	78%	**99	96%
[Hodgdon BL-C2]*	<<locked>>	90%	33968	76%	**07	90%
[Hodgdon Benchmark]*	<<locked>>	84%	32010	71%	**49	90%
[Hodgdon H322]*	<<locked>>	81%	28253	63%	**17	92%
[Hodgdon H335]*	<<locked>>	81%	33098	74%	**58	93%
Hodgdon TrailBoss	<<locked>>	81%	22829	51%	**81	100%
[IMR 3031]*	<<locked>>	85%	24381	54%	**35	90%
IMR 4198	<<locked>>	81%	33823	75%	**25	99%
[IMR 8208 XBR]*	<<locked>>	88%	33678	75%	**41	90%
[Lovex D073.4]*	<<locked>>	82%	31067	69%	**59	90%
[Lovex D073.5]*	<<locked>>	83%	30458	68%	**62	90%
[Lovex D073.6]*	<<locked>>	89%	28631	64%	**62	90%
Norma 200	<<locked>>	81%	34954	78%	**87	99%
[Norma 201]*	<<locked>>	91%	33359	74%	**31	90%
[Norma 202]*	<<locked>>	85%	27267	61%	**90	90%
ReloadSwiss RS 14	<<locked>>	81%	22510	50%	**21	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	30327	67%	**49	90%
[Rottweil R 901]*	<<locked>>	83%	27325	61%	**61	90%
[Rottweil R 902]*	<<locked>>	93%	33373	74%	**25	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	34084	76%	**77	94%
[SNPE Vectan Tubal 3000]*	<<locked>>	82%	27282	61%	**05	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	24743	55%	**33	90%
[Shooters World Match Rifle]*	<<locked>>	89%	28631	64%	**62	90%
[Shooters World Tactical Rifle]*	<<locked>>	83%	35230	78%	**41	90%
[Somchem S321]*	<<locked>>	85%	33083	74%	**44	90%
[Somchem S335]*	<<locked>>	81%	25092	56%	**56	90%
Vihtavuori N120	<<locked>>	81%	35578	79%	**41	100%
Vihtavuori N130	<<locked>>	81%	29443	65%	**87	96%
[Vihtavuori N133]*	<<locked>>	81%	24091	54%	**26	92%
[Vihtavuori N135]*	<<locked>>	89%	22481	50%	**36	90%
[Vihtavuori N140]*	<<locked>>	86%	26295	58%	**31	90%
[Vihtavuori N530]*	<<locked>>	86%	33185	74%	**41	90%
[Vihtavuori N540]*	<<locked>>	88%	27557	61%	**90	90%
[Winchester 748]*	<<locked>>	85%	31894	71%	**41	90%
[Winchester StaBALL Match]*	<<locked>>	86%	36245	81%	**36	90%

Start Load - Barrel Length: 23.60''

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