Load data for .350 Mag. Rigby + .356 | 123gr | LOS RN

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 123gr \| LOS RN
Bullet Weight:	123gr \| 8.0g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.580" \| 14.7mm
Caliber:	.350 Mag. Rigby load data
Case Length (l3):	2.750" \| 69.8mm
Cartridge Length (C.O.L.):	3.207" \| 81.5mm
Seated Depth:	0.123" \| 3.1mm
Shank Seated Depth:	0.123" \| 3.1mm
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_B3508_C501
Last updated:	2025-01-01

Load data for 0 loads in caliber .350 Mag. Rigby with .356 | 123gr | LOS RN bullet and 0 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>>	84%	39943	89%	**04	96%
Accurate 2015	<<locked>>	89%	39972	89%	**64	98%
[Accurate 2460]*	<<locked>>	87%	40219	89%	**58	93%
Accurate 2495	<<locked>>	95%	39885	89%	**50	98%
[Accurate 2520]*	<<locked>>	93%	39943	89%	**14	94%
[Accurate 4064]*	<<locked>>	97%	35230	78%	**09	94%
Alliant AR-Comp 👍	<<locked>>	93%	40306	90%	**69	100%
Alliant Reloder-10x 👍	<<locked>>	86%	40001	89%	**97	99%
Baschieri & Pellagri 106	<<locked>>	83%	40219	89%	**79	97%
[Hodgdon Benchmark]*	<<locked>>	88%	39943	89%	**12	92%
Hodgdon H322	<<locked>>	89%	40176	89%	**01	96%
Hodgdon H335	<<locked>>	84%	40176	89%	**91	95%
Hodgdon TrailBoss	<<locked>>	97%	30385	68%	**01	100%
IMR 3031	<<locked>>	97%	39494	88%	**46	97%
IMR 4198	<<locked>>	84%	40103	89%	**51	99%
[Lovex D073.4]*	<<locked>>	86%	40147	89%	**38	93%
[Lovex D073.5]*	<<locked>>	88%	40306	90%	**68	93%
[Lovex D073.6]*	<<locked>>	95%	39943	89%	**14	94%
[Norma 201]*	<<locked>>	94%	40089	89%	**51	91%
Norma 202	<<locked>>	94%	40422	90%	**04	95%
ReloadSwiss RS 14	<<locked>>	96%	30066	67%	**47	100%
[ReloadSwiss RS 40]*	<<locked>>	87%	39943	89%	**58	93%
Rottweil R 901	<<locked>>	91%	40379	90%	**71	95%
[Rottweil R 902]*	<<locked>>	96%	40379	90%	**48	92%
SNPE Vectan SP 10	<<locked>>	83%	40205	89%	**87	95%
SNPE Vectan Tubal 3000	<<locked>>	91%	39900	89%	**92	95%
SNPE Vectan Tubal 5000	<<locked>>	97%	38348	85%	**66	95%
[Shooters World Match Rifle]*	<<locked>>	95%	39943	89%	**14	94%
[Somchem S321]*	<<locked>>	88%	40089	89%	**81	92%
Somchem S335	<<locked>>	92%	40335	90%	**28	96%
Vihtavuori N130	<<locked>>	88%	40001	89%	**22	98%
Vihtavuori N133	<<locked>>	94%	40292	90%	**32	98%
Vihtavuori N135	<<locked>>	97%	32706	73%	**10	95%
Vihtavuori N140	<<locked>>	96%	39885	89%	**58	95%
[Vihtavuori N530]*	<<locked>>	89%	40422	90%	**87	92%
Vihtavuori N540	<<locked>>	96%	40292	90%	**94	95%
[Winchester 748]*	<<locked>>	89%	40437	90%	**27	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2219	<<locked>>	81%	36303	81%	**05	95%
Accurate 2015	<<locked>>	81%	30458	68%	**02	95%
[Accurate 2460]*	<<locked>>	83%	34098	76%	**91	90%
[Accurate 2495]*	<<locked>>	81%	24033	53%	**54	90%
[Accurate 2520]*	<<locked>>	86%	31792	71%	**87	90%
[Accurate 4064]*	<<locked>>	91%	28514	63%	**02	90%
Alliant AR-Comp	<<locked>>	81%	26919	60%	**66	95%
Alliant Reloder-10x	<<locked>>	81%	33982	76%	**36	97%
Baschieri & Pellagri 106	<<locked>>	81%	37333	83%	**04	96%
[Hodgdon Benchmark]*	<<locked>>	84%	35346	79%	**77	90%
[Hodgdon H322]*	<<locked>>	81%	30342	67%	**18	91%
[Hodgdon H335]*	<<locked>>	81%	35694	79%	**76	93%
Hodgdon TrailBoss	<<locked>>	81%	23598	52%	**14	100%
[IMR 3031]*	<<locked>>	85%	26847	60%	**46	90%
IMR 4198	<<locked>>	81%	35911	80%	**46	98%
[Lovex D073.4]*	<<locked>>	82%	34026	76%	**87	90%
[Lovex D073.5]*	<<locked>>	83%	34011	76%	**94	90%
[Lovex D073.6]*	<<locked>>	88%	31792	71%	**87	90%
[Norma 201]*	<<locked>>	91%	36941	82%	**76	90%
[Norma 202]*	<<locked>>	85%	30153	67%	**12	90%
ReloadSwiss RS 14	<<locked>>	81%	23438	52%	**60	100%
[ReloadSwiss RS 40]*	<<locked>>	81%	33214	74%	**71	90%
[Rottweil R 901]*	<<locked>>	83%	30777	68%	**89	90%
[Rottweil R 902]*	<<locked>>	93%	36912	82%	**66	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	36898	82%	**05	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	83%	30197	67%	**23	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	86%	27325	61%	**41	90%
[Shooters World Match Rifle]*	<<locked>>	88%	31792	71%	**87	90%
[Somchem S321]*	<<locked>>	86%	36216	81%	**66	90%
[Somchem S335]*	<<locked>>	81%	27789	62%	**61	90%
Vihtavuori N130	<<locked>>	81%	32053	71%	**09	96%
[Vihtavuori N133]*	<<locked>>	81%	26368	59%	**25	92%
[Vihtavuori N135]*	<<locked>>	89%	25208	56%	**48	90%
[Vihtavuori N140]*	<<locked>>	86%	29312	65%	**56	90%
[Vihtavuori N530]*	<<locked>>	87%	36941	82%	**96	90%
[Vihtavuori N540]*	<<locked>>	88%	30385	68%	**05	90%
[Winchester 748]*	<<locked>>	86%	35143	78%	**73	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