Load data for .350 Mag. Rigby + .357 | 170gr | Speer SP MAG GD

Recommended Powder(s): Accurate 2495, Accurate 4064, IMR 3031, Vihtavuori N135

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.357 \| 170gr \| Speer SP MAG GD
Manufacturer SKU:	4230
Bullet Weight:	170gr \| 11.0g
Bullet Diameter:	0.357" \| 9.07mm
Bullet Length:	0.680" \| 17.3mm
Caliber:	.350 Mag. Rigby load data
Case Length (l3):	2.750" \| 69.8mm
Cartridge Length (C.O.L.):	3.308" \| 84.0mm
Seated Depth:	0.122" \| 3.1mm
Shank Seated Depth:	0.122" \| 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_B6228_C501
Last updated:	2025-01-01

Load data for 106 loads in caliber .350 Mag. Rigby with .357 | 170gr | Speer SP MAG GD bullet and 53 powders such as Accurate 2495, Accurate 4064, 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>>	86%	40118	89%	**00	94%
[ADI AR 2208]*	<<locked>>	91%	40408	90%	**74	94%
[Accurate 2200]*	<<locked>>	84%	40277	90%	**54	92%
Accurate 2495 👍	<<locked>>	88%	40466	90%	**36	100%
Accurate 2520	<<locked>>	86%	40190	89%	**23	98%
Accurate 4064 👍	<<locked>>	93%	40074	89%	**33	99%
Alliant AR-Comp	<<locked>>	85%	39943	89%	**27	100%
Alliant Reloder- TS 15.5	<<locked>>	92%	40219	89%	**20	96%
[Alliant Reloder-15]*	<<locked>>	90%	40306	90%	**27	94%
[Alliant Reloder-17]*	<<locked>>	96%	40277	90%	**82	94%
[Baschieri & Pellagri 107]*	<<locked>>	86%	39972	89%	**04	93%
Hodgdon BL-C2	<<locked>>	85%	40045	89%	**27	96%
[Hodgdon CFE223]*	<<locked>>	90%	40321	90%	**40	93%
[Hodgdon H380]*	<<locked>>	91%	40234	89%	**97	92%
[Hodgdon VARGET]*	<<locked>>	91%	40103	89%	**74	93%
Hodgdon TrailBoss	<<locked>>	96%	31473	70%	**00	100%
IMR 3031 👍	<<locked>>	90%	40306	90%	**56	100%
[IMR 4064]*	<<locked>>	92%	39958	89%	**64	94%
IMR 4895	<<locked>>	89%	40219	89%	**33	95%
IMR 8208 XBR	<<locked>>	84%	40016	89%	**77	96%
Lovex D073.6	<<locked>>	88%	40190	89%	**23	98%
Lovex S060	<<locked>>	85%	40451	90%	**31	95%
Lovex S062	<<locked>>	90%	40118	89%	**90	96%
Norma 201	<<locked>>	87%	40466	90%	**90	96%
Norma 202	<<locked>>	87%	40306	90%	**04	98%
[Norma 203B]*	<<locked>>	90%	40089	89%	**17	94%
[Ramshot Big Game]*	<<locked>>	90%	40045	89%	**36	94%
[Ramshot Wild Boar]*	<<locked>>	85%	40292	90%	**07	94%
ReloadSwiss RS 14	<<locked>>	96%	31633	70%	**46	100%
ReloadSwiss RS 52	<<locked>>	91%	40335	90%	**76	97%
ReloadSwiss RS 60	<<locked>>	97%	40161	89%	**95	96%
Rottweil R 901	<<locked>>	85%	40350	90%	**74	98%
Rottweil R 902	<<locked>>	89%	40422	90%	**81	96%
Rottweil R 903	<<locked>>	95%	40001	89%	**17	95%
[SNPE Vectan SP 11]*	<<locked>>	93%	40451	90%	**46	94%
[SNPE Vectan SP 7]*	<<locked>>	86%	40335	90%	**67	92%
[SNPE Vectan SP 9]*	<<locked>>	87%	40176	89%	**90	94%
SNPE Vectan Tubal 3000	<<locked>>	85%	40059	89%	**12	98%
SNPE Vectan Tubal 5000	<<locked>>	92%	40292	90%	**25	99%
Shooters World Match Rifle	<<locked>>	88%	40190	89%	**23	98%
Shooters World Precision	<<locked>>	90%	40118	89%	**90	96%
Somchem S335	<<locked>>	86%	40074	89%	**35	99%
[Somchem S341]*	<<locked>>	86%	40161	89%	**77	94%
Somchem S355	<<locked>>	94%	40074	89%	**10	95%
[Somchem S365]*	<<locked>>	97%	31198	69%	**49	92%
Vihtavuori N133	<<locked>>	87%	40103	89%	**31	100%
Vihtavuori N135 👍	<<locked>>	96%	40437	90%	**00	100%
Vihtavuori N140	<<locked>>	89%	40190	89%	**74	99%
Vihtavuori N150	<<locked>>	97%	37014	82%	**12	96%
[Vihtavuori N160]*	<<locked>>	97%	39624	88%	**87	92%
Vihtavuori N540	<<locked>>	89%	40103	89%	**97	98%
[Vihtavuori N550]*	<<locked>>	97%	39682	88%	**43	92%
[Winchester 6.5 StaBALL]*	<<locked>>	97%	39334	87%	**51	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2206H]*	<<locked>>	81%	33866	75%	**43	92%
[ADI AR 2208]*	<<locked>>	85%	32808	73%	**87	90%
[Accurate 2200]*	<<locked>>	81%	36230	81%	**56	91%
Accurate 2495	<<locked>>	81%	31531	70%	**30	98%
Accurate 2520	<<locked>>	81%	33605	75%	**66	96%
[Accurate 4064]*	<<locked>>	81%	26295	58%	**66	94%
Alliant AR-Comp	<<locked>>	81%	34113	76%	**99	100%
[Alliant Reloder- TS 15.5]*	<<locked>>	82%	28210	63%	**08	90%
[Alliant Reloder-15]*	<<locked>>	83%	32169	72%	**20	90%
[Alliant Reloder-17]*	<<locked>>	90%	32343	72%	**69	90%
[Baschieri & Pellagri 107]*	<<locked>>	82%	34330	76%	**62	90%
[Hodgdon BL-C2]*	<<locked>>	81%	34055	76%	**82	94%
[Hodgdon CFE223]*	<<locked>>	87%	35027	78%	**05	90%
[Hodgdon H380]*	<<locked>>	88%	36071	80%	**02	90%
[Hodgdon VARGET]*	<<locked>>	85%	32605	73%	**84	90%
Hodgdon TrailBoss	<<locked>>	81%	24990	56%	**49	100%
IMR 3031	<<locked>>	81%	29457	66%	**90	97%
[IMR 4064]*	<<locked>>	85%	31850	71%	**61	90%
[IMR 4895]*	<<locked>>	81%	30327	67%	**80	90%
IMR 8208 XBR	<<locked>>	81%	36071	80%	**82	95%
Lovex D073.6	<<locked>>	81%	31299	70%	**07	95%
[Lovex S060]*	<<locked>>	81%	35114	78%	**00	92%
[Lovex S062]*	<<locked>>	81%	29124	65%	**02	91%
[Norma 201]*	<<locked>>	81%	32721	73%	**94	93%
Norma 202	<<locked>>	81%	32895	73%	**23	96%
[Norma 203B]*	<<locked>>	83%	30748	68%	**77	90%
[Ramshot Big Game]*	<<locked>>	84%	31865	71%	**20	90%
[Ramshot Wild Boar]*	<<locked>>	81%	34853	78%	**72	92%
ReloadSwiss RS 14	<<locked>>	81%	24685	55%	**81	100%
[ReloadSwiss RS 52]*	<<locked>>	81%	27644	61%	**21	91%
[ReloadSwiss RS 60]*	<<locked>>	90%	31575	70%	**36	90%
Rottweil R 901	<<locked>>	81%	35810	80%	**72	97%
[Rottweil R 902]*	<<locked>>	81%	30908	69%	**41	92%
[Rottweil R 903]*	<<locked>>	86%	28950	64%	**31	90%
[SNPE Vectan SP 11]*	<<locked>>	87%	32126	71%	**30	90%
[SNPE Vectan SP 7]*	<<locked>>	83%	36201	81%	**76	90%
[SNPE Vectan SP 9]*	<<locked>>	81%	32677	73%	**03	91%
SNPE Vectan Tubal 3000	<<locked>>	81%	35041	78%	**94	97%
SNPE Vectan Tubal 5000	<<locked>>	81%	28224	63%	**33	96%
Shooters World Match Rifle	<<locked>>	81%	31299	70%	**07	95%
[Shooters World Precision]*	<<locked>>	81%	29124	65%	**02	91%
Somchem S335	<<locked>>	81%	34258	76%	**97	98%
[Somchem S341]*	<<locked>>	81%	33475	74%	**20	91%
[Somchem S355]*	<<locked>>	85%	29080	65%	**21	90%
[Somchem S365]*	<<locked>>	94%	28427	63%	**57	90%
Vihtavuori N133	<<locked>>	81%	32750	73%	**54	99%
Vihtavuori N135	<<locked>>	81%	24555	55%	**80	95%
Vihtavuori N140	<<locked>>	81%	30705	68%	**44	96%
[Vihtavuori N150]*	<<locked>>	86%	25991	58%	**03	90%
[Vihtavuori N160]*	<<locked>>	94%	35636	79%	**89	90%
Vihtavuori N540	<<locked>>	81%	30385	68%	**57	95%
[Vihtavuori N550]*	<<locked>>	94%	35752	80%	**44	90%
[Winchester 6.5 StaBALL]*	<<locked>>	90%	31053	69%	**31	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.

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