Load data for .350 Mag. Rigby + .356 | 125gr | H&N KS KB

Recommended Powder(s): Alliant AR-Comp, Alliant Reloder-10x, Norma 200

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.356 \| 125gr \| H&N KS KB
Bullet Weight:	125gr \| 8.1g
Bullet Diameter:	0.356" \| 9.04mm
Bullet Length:	0.530" \| 13.5mm
Caliber:	.350 Mag. Rigby load data
Case Length (l3):	2.750" \| 69.8mm
Cartridge Length (C.O.L.):	3.158" \| 80.2mm
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_B7450_C501
Last updated:	2025-01-01

Load data for 80 loads in caliber .350 Mag. Rigby with .356 | 125gr | H&N KS KB bullet and 40 powders such as Alliant AR-Comp, Alliant Reloder-10x, Norma 200. 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>>	85%	40234	89%	**01	96%
Accurate 2015	<<locked>>	91%	40132	89%	**58	98%
[Accurate 2460]*	<<locked>>	89%	40089	89%	**58	93%
Accurate 2495	<<locked>>	97%	39856	89%	**40	98%
[Accurate 2520]*	<<locked>>	94%	40248	90%	**10	94%
[Accurate 4064]*	<<locked>>	97%	32372	72%	**23	93%
Alliant AR-Comp 👍	<<locked>>	94%	40466	90%	**63	100%
Alliant Reloder-10x 👍	<<locked>>	88%	40379	90%	**97	99%
Baschieri & Pellagri 106	<<locked>>	84%	39914	89%	**63	97%
[Hodgdon Benchmark]*	<<locked>>	90%	40306	90%	**05	93%
Hodgdon H322	<<locked>>	91%	40408	90%	**14	96%
Hodgdon H335	<<locked>>	86%	40248	90%	**84	95%
Hodgdon TrailBoss	<<locked>>	96%	29254	65%	**72	100%
IMR 3031	<<locked>>	97%	37347	83%	**97	96%
IMR 4198	<<locked>>	86%	39987	89%	**41	99%
[IMR 8208 XBR]*	<<locked>>	92%	40205	89%	**45	92%
[Lovex D073.4]*	<<locked>>	87%	40074	89%	**35	93%
[Lovex D073.5]*	<<locked>>	90%	40437	90%	**61	93%
[Lovex D073.6]*	<<locked>>	97%	40248	90%	**10	94%
Norma 200 👍	<<locked>>	85%	40350	90%	**81	99%
[Norma 201]*	<<locked>>	95%	40132	89%	**58	92%
Norma 202	<<locked>>	95%	40408	90%	**94	95%
ReloadSwiss RS 14	<<locked>>	96%	28935	64%	**21	100%
[ReloadSwiss RS 40]*	<<locked>>	88%	40059	89%	**64	94%
Rottweil R 901	<<locked>>	93%	40335	90%	**68	95%
[Rottweil R 902]*	<<locked>>	97%	39479	88%	**32	92%
SNPE Vectan SP 10	<<locked>>	85%	40350	90%	**81	95%
SNPE Vectan Tubal 3000	<<locked>>	93%	39943	89%	**89	95%
SNPE Vectan Tubal 5000	<<locked>>	97%	36477	81%	**14	95%
[Shooters World Match Rifle]*	<<locked>>	97%	40248	90%	**10	94%
[Somchem S321]*	<<locked>>	90%	39987	89%	**68	92%
Somchem S335	<<locked>>	94%	40045	89%	**12	96%
Vihtavuori N120	<<locked>>	84%	39871	89%	**05	100%
Vihtavuori N130	<<locked>>	90%	40045	89%	**15	99%
Vihtavuori N133	<<locked>>	96%	40030	89%	**19	98%
[Vihtavuori N135]*	<<locked>>	97%	30342	67%	**35	94%
Vihtavuori N140	<<locked>>	97%	39769	88%	**51	95%
[Vihtavuori N530]*	<<locked>>	90%	40118	89%	**71	92%
Vihtavuori N540	<<locked>>	97%	39537	88%	**71	95%
[Winchester 748]*	<<locked>>	90%	40016	89%	**07	93%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2219]*	<<locked>>	81%	34461	77%	**46	94%
[Accurate 2015]*	<<locked>>	81%	27978	62%	**27	94%
[Accurate 2460]*	<<locked>>	84%	33344	74%	**74	90%
[Accurate 2495]*	<<locked>>	84%	23641	53%	**41	90%
[Accurate 2520]*	<<locked>>	88%	31430	70%	**64	90%
[Accurate 4064]*	<<locked>>	93%	28268	63%	**86	90%
[Alliant AR-Comp]*	<<locked>>	81%	24801	55%	**74	94%
Alliant Reloder-10x	<<locked>>	81%	31676	70%	**54	96%
Baschieri & Pellagri 106	<<locked>>	81%	35549	79%	**51	95%
[Hodgdon Benchmark]*	<<locked>>	85%	34505	77%	**54	90%
[Hodgdon H322]*	<<locked>>	81%	28514	63%	**59	91%
[Hodgdon H335]*	<<locked>>	81%	33721	75%	**10	92%
Hodgdon TrailBoss	<<locked>>	81%	22916	51%	**98	100%
[IMR 3031]*	<<locked>>	87%	26527	59%	**33	90%
IMR 4198	<<locked>>	81%	34272	76%	**97	98%
[IMR 8208 XBR]*	<<locked>>	89%	36608	81%	**56	90%
[Lovex D073.4]*	<<locked>>	83%	33286	74%	**64	90%
[Lovex D073.5]*	<<locked>>	85%	33112	74%	**71	90%
[Lovex D073.6]*	<<locked>>	90%	31430	70%	**64	90%
Norma 200	<<locked>>	81%	35505	79%	**53	98%
[Norma 201]*	<<locked>>	93%	36477	81%	**56	90%
[Norma 202]*	<<locked>>	87%	29660	66%	**89	90%
ReloadSwiss RS 14	<<locked>>	81%	22249	49%	**34	100%
[ReloadSwiss RS 40]*	<<locked>>	82%	32155	72%	**45	90%
[Rottweil R 901]*	<<locked>>	85%	30153	67%	**82	90%
[Rottweil R 902]*	<<locked>>	94%	36318	81%	**43	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	34780	77%	**36	93%
[SNPE Vectan Tubal 3000]*	<<locked>>	84%	29312	65%	**90	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	88%	26919	60%	**25	90%
[Shooters World Match Rifle]*	<<locked>>	90%	31430	70%	**64	90%
[Somchem S321]*	<<locked>>	87%	35331	79%	**43	90%
[Somchem S335]*	<<locked>>	83%	26963	60%	**38	90%
Vihtavuori N120	<<locked>>	81%	36100	80%	**17	100%
Vihtavuori N130	<<locked>>	81%	29863	66%	**46	95%
[Vihtavuori N133]*	<<locked>>	81%	24468	54%	**53	91%
[Vihtavuori N135]*	<<locked>>	91%	24801	55%	**28	90%
[Vihtavuori N140]*	<<locked>>	88%	28616	64%	**33	90%
[Vihtavuori N530]*	<<locked>>	88%	36347	81%	**73	90%
[Vihtavuori N540]*	<<locked>>	89%	30081	67%	**95	90%
[Winchester 748]*	<<locked>>	87%	34563	77%	**46	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