Load data for .350 Mag. Rigby + .357 | 158gr | Frontier Bullets FP

Recommended Powder(s): Accurate 2495, IMR 3031, Vihtavuori N135

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 158gr \| Frontier Bullets FP
Manufacturer SKU:	100118
Bullet Weight:	158gr \| 10.2g
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.):	3.110" \| 79.0mm
Seated Depth:	0.301" \| 7.6mm
Shank Seated Depth:	0.301" \| 7.6mm
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_B10963_C501
Last updated:	2025-09-13

Load data for 98 loads in caliber .350 Mag. Rigby with .357 | 158gr | Frontier Bullets FP bullet and 49 powders such as Accurate 2495, IMR 3031, Vihtavuori N135. 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 2206H]*	<<locked>>	87%	40205	89%	**53	93%
[ADI AR 2208]*	<<locked>>	92%	40045	89%	**17	92%
Accurate 2015	<<locked>>	83%	39914	89%	**07	99%
Accurate 2495 👍	<<locked>>	88%	40030	89%	**92	99%
Accurate 2520	<<locked>>	87%	39987	89%	**69	97%
Accurate 4064	<<locked>>	94%	40118	89%	**89	98%
Alliant AR-Comp	<<locked>>	87%	39972	89%	**02	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	94%	40437	90%	**86	94%
[Alliant Reloder-15]*	<<locked>>	91%	40263	90%	**69	92%
[Hodgdon BL-C2]*	<<locked>>	87%	39914	89%	**76	94%
Hodgdon Benchmark	<<locked>>	83%	40393	90%	**87	95%
Hodgdon H322	<<locked>>	84%	40306	90%	**63	98%
[Hodgdon VARGET]*	<<locked>>	93%	40263	90%	**30	92%
Hodgdon TrailBoss	<<locked>>	96%	31865	71%	**42	100%
IMR 3031 👍	<<locked>>	91%	40263	90%	**18	99%
[IMR 4064]*	<<locked>>	93%	40393	90%	**23	92%
[IMR 4895]*	<<locked>>	90%	40030	89%	**86	93%
IMR 8208 XBR	<<locked>>	85%	40451	90%	**33	95%
Lovex D073.6	<<locked>>	89%	39987	89%	**69	97%
[Lovex S060]*	<<locked>>	86%	40030	89%	**64	93%
Lovex S062	<<locked>>	91%	40074	89%	**40	95%
Norma 201	<<locked>>	88%	40422	90%	**30	95%
Norma 202	<<locked>>	88%	40103	89%	**56	97%
[Norma 203B]*	<<locked>>	91%	40103	89%	**76	93%
[Ramshot Big Game]*	<<locked>>	91%	40234	89%	**79	92%
[Ramshot Wild Boar]*	<<locked>>	86%	40335	90%	**56	93%
ReloadSwiss RS 14	<<locked>>	96%	31908	71%	**88	100%
ReloadSwiss RS 52	<<locked>>	93%	40161	89%	**15	95%
[ReloadSwiss RS 60]*	<<locked>>	97%	38682	86%	**76	92%
Rottweil R 901	<<locked>>	85%	40335	90%	**27	97%
Rottweil R 902	<<locked>>	89%	40059	89%	**17	95%
[Rottweil R 903]*	<<locked>>	96%	39900	89%	**69	94%
[SNPE Vectan SP 11]*	<<locked>>	95%	40321	90%	**92	92%
[SNPE Vectan SP 9]*	<<locked>>	88%	40321	90%	**53	93%
SNPE Vectan Tubal 3000	<<locked>>	86%	40292	90%	**67	97%
SNPE Vectan Tubal 5000	<<locked>>	93%	40393	90%	**87	98%
Shooters World Match Rifle	<<locked>>	89%	39987	89%	**69	97%
Shooters World Precision	<<locked>>	91%	40074	89%	**40	95%
Somchem S321	<<locked>>	83%	40234	89%	**46	95%
Somchem S335	<<locked>>	87%	40147	89%	**87	98%
[Somchem S341]*	<<locked>>	87%	40393	90%	**33	93%
[Somchem S355]*	<<locked>>	95%	40248	90%	**63	94%
Vihtavuori N133	<<locked>>	88%	40190	89%	**84	99%
Vihtavuori N135 👍	<<locked>>	97%	40263	90%	**59	99%
Vihtavuori N140	<<locked>>	90%	39943	89%	**23	98%
[Vihtavuori N150]*	<<locked>>	97%	35389	79%	**22	93%
Vihtavuori N530	<<locked>>	84%	40103	89%	**40	95%
Vihtavuori N540	<<locked>>	90%	40379	90%	**63	97%
Winchester 748	<<locked>>	84%	40103	89%	**92	96%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	82%	34243	76%	**99	90%
[ADI AR 2208]*	<<locked>>	89%	36666	82%	**38	90%
Accurate 2015	<<locked>>	81%	37347	83%	**54	99%
Accurate 2495	<<locked>>	81%	31502	70%	**79	97%
[Accurate 2520]*	<<locked>>	81%	32764	73%	**89	94%
[Accurate 4064]*	<<locked>>	81%	26513	59%	**21	92%
Alliant AR-Comp	<<locked>>	81%	33040	73%	**35	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	86%	31589	70%	**53	90%
[Alliant Reloder-15]*	<<locked>>	87%	35926	80%	**58	90%
[Hodgdon BL-C2]*	<<locked>>	81%	32967	73%	**02	91%
[Hodgdon Benchmark]*	<<locked>>	81%	37521	83%	**22	94%
Hodgdon H322	<<locked>>	81%	36564	81%	**74	97%
[Hodgdon VARGET]*	<<locked>>	90%	36738	82%	**35	90%
Hodgdon TrailBoss	<<locked>>	81%	25164	56%	**81	100%
IMR 3031	<<locked>>	81%	28964	64%	**13	95%
[IMR 4064]*	<<locked>>	90%	35781	80%	**05	90%
[IMR 4895]*	<<locked>>	85%	33881	75%	**25	90%
[IMR 8208 XBR]*	<<locked>>	81%	35012	78%	**02	92%
[Lovex D073.6]*	<<locked>>	81%	30400	68%	**23	93%
[Lovex S060]*	<<locked>>	81%	34330	76%	**23	90%
[Lovex S062]*	<<locked>>	82%	29950	67%	**74	90%
[Norma 201]*	<<locked>>	81%	32314	72%	**20	91%
[Norma 202]*	<<locked>>	81%	32082	71%	**43	94%
[Norma 203B]*	<<locked>>	87%	34258	76%	**28	90%
[Ramshot Big Game]*	<<locked>>	88%	35969	80%	**61	90%
[Ramshot Wild Boar]*	<<locked>>	82%	34679	77%	**12	90%
ReloadSwiss RS 14	<<locked>>	81%	25266	56%	**24	100%
[ReloadSwiss RS 52]*	<<locked>>	84%	30037	67%	**40	90%
[ReloadSwiss RS 60]*	<<locked>>	94%	35346	79%	**77	90%
Rottweil R 901	<<locked>>	81%	35795	80%	**08	96%
[Rottweil R 902]*	<<locked>>	81%	30879	69%	**71	90%
[Rottweil R 903]*	<<locked>>	90%	32068	71%	**76	90%
[SNPE Vectan SP 11]*	<<locked>>	91%	35650	79%	**61	90%
[SNPE Vectan SP 9]*	<<locked>>	83%	34243	76%	**92	90%
SNPE Vectan Tubal 3000	<<locked>>	81%	34360	76%	**26	95%
[SNPE Vectan Tubal 5000]*	<<locked>>	81%	27702	62%	**56	94%
[Shooters World Match Rifle]*	<<locked>>	81%	30400	68%	**23	93%
[Shooters World Precision]*	<<locked>>	82%	29950	67%	**74	90%
[Somchem S321]*	<<locked>>	81%	37405	83%	**81	94%
Somchem S335	<<locked>>	81%	33518	75%	**26	96%
[Somchem S341]*	<<locked>>	83%	34737	77%	**89	90%
[Somchem S355]*	<<locked>>	89%	32735	73%	**69	90%
Vihtavuori N133	<<locked>>	81%	31850	71%	**87	97%
[Vihtavuori N135]*	<<locked>>	81%	24453	54%	**23	93%
[Vihtavuori N140]*	<<locked>>	81%	29834	66%	**71	94%
[Vihtavuori N150]*	<<locked>>	90%	29109	65%	**44	90%
[Vihtavuori N530]*	<<locked>>	81%	36521	81%	**58	93%
[Vihtavuori N540]*	<<locked>>	81%	29530	66%	**71	93%
[Winchester 748]*	<<locked>>	81%	36027	80%	**90	94%

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