Load data for .350 Mag. Rigby + .355 | 121gr | Frontier Bullets CMJ FP atch

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

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.355 \| 121gr \| Frontier Bullets CMJ FP atch
Manufacturer SKU:	100107
Bullet Weight:	121gr \| 7.8g
Bullet Diameter:	0.355" \| 9.02mm
Bullet Length:	0.539" \| 13.7mm
Caliber:	.350 Mag. Rigby load data
Case Length (l3):	2.750" \| 69.8mm
Cartridge Length (C.O.L.):	2.974" \| 75.5mm
Seated Depth:	0.315" \| 8.0mm
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_B10965_C501
Last updated:	2025-11-05

Load data for 68 loads in caliber .350 Mag. Rigby with .355 | 121gr | Frontier Bullets CMJ FP atch bullet and 34 powders such as Alliant AR-Comp, 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%	40306	90%	**04	95%
Accurate 2015	<<locked>>	90%	40437	90%	**74	98%
[Accurate 2460]*	<<locked>>	88%	40422	90%	**55	92%
Accurate 2495	<<locked>>	96%	40205	89%	**53	97%
[Accurate 2520]*	<<locked>>	94%	40466	90%	**07	93%
[Accurate 4064]*	<<locked>>	97%	33953	76%	**69	92%
Alliant AR-Comp 👍	<<locked>>	94%	40074	89%	**53	99%
Alliant Reloder-10x	<<locked>>	87%	40190	89%	**91	98%
Baschieri & Pellagri 106	<<locked>>	84%	40292	90%	**69	96%
[Hodgdon Benchmark]*	<<locked>>	90%	40451	90%	**99	91%
Hodgdon H322	<<locked>>	90%	39914	89%	**87	95%
[Hodgdon H335]*	<<locked>>	86%	40408	90%	**94	94%
Hodgdon TrailBoss	<<locked>>	97%	30472	68%	**92	100%
IMR 3031	<<locked>>	97%	37637	84%	**91	95%
IMR 4198	<<locked>>	85%	40089	89%	**45	99%
[Lovex D073.4]*	<<locked>>	87%	40364	90%	**38	92%
[Lovex D073.5]*	<<locked>>	89%	40437	90%	**48	92%
[Lovex D073.6]*	<<locked>>	96%	40466	90%	**07	93%
Norma 200 👍	<<locked>>	83%	40234	89%	**71	99%
[Norma 202]*	<<locked>>	95%	40219	89%	**84	94%
ReloadSwiss RS 14	<<locked>>	96%	30052	67%	**31	100%
[ReloadSwiss RS 40]*	<<locked>>	88%	40059	89%	**48	92%
[Rottweil R 901]*	<<locked>>	92%	40190	89%	**55	94%
[SNPE Vectan SP 10]*	<<locked>>	84%	40059	89%	**78	94%
[SNPE Vectan Tubal 3000]*	<<locked>>	93%	40437	90%	**99	94%
[SNPE Vectan Tubal 5000]*	<<locked>>	97%	37115	83%	**20	94%
[Shooters World Match Rifle]*	<<locked>>	96%	40466	90%	**07	93%
Somchem S335	<<locked>>	93%	40147	89%	**05	95%
Vihtavuori N120	<<locked>>	84%	40190	89%	**22	100%
Vihtavuori N130	<<locked>>	89%	40451	90%	**28	98%
Vihtavuori N133	<<locked>>	96%	40379	90%	**35	97%
[Vihtavuori N135]*	<<locked>>	97%	31589	70%	**68	93%
[Vihtavuori N140]*	<<locked>>	97%	39871	89%	**48	94%
[Vihtavuori N540]*	<<locked>>	97%	39972	89%	**78	94%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2219]*	<<locked>>	81%	35143	78%	**59	93%
[Accurate 2015]*	<<locked>>	81%	29921	67%	**82	94%
[Accurate 2460]*	<<locked>>	85%	36143	80%	**43	90%
[Accurate 2495]*	<<locked>>	82%	24787	55%	**87	90%
[Accurate 2520]*	<<locked>>	89%	33620	75%	**36	90%
[Accurate 4064]*	<<locked>>	93%	30400	68%	**58	90%
[Alliant AR-Comp]*	<<locked>>	81%	26397	59%	**20	94%
Alliant Reloder-10x	<<locked>>	81%	33141	74%	**91	96%
Baschieri & Pellagri 106	<<locked>>	81%	35998	80%	**68	95%
[Hodgdon Benchmark]*	<<locked>>	87%	37217	83%	**17	90%
[Hodgdon H322]*	<<locked>>	81%	29747	66%	**86	90%
[Hodgdon H335]*	<<locked>>	81%	34635	77%	**36	92%
Hodgdon TrailBoss	<<locked>>	81%	23975	53%	**08	100%
[IMR 3031]*	<<locked>>	88%	28413	63%	**95	90%
IMR 4198	<<locked>>	81%	34954	78%	**07	98%
[Lovex D073.4]*	<<locked>>	84%	36782	82%	**50	90%
[Lovex D073.5]*	<<locked>>	86%	36361	81%	**43	90%
[Lovex D073.6]*	<<locked>>	91%	33620	75%	**36	90%
Norma 200	<<locked>>	81%	37695	84%	**05	98%
[Norma 202]*	<<locked>>	88%	31923	71%	**54	90%
ReloadSwiss RS 14	<<locked>>	81%	23670	53%	**51	100%
[ReloadSwiss RS 40]*	<<locked>>	83%	34722	77%	**14	90%
[Rottweil R 901]*	<<locked>>	85%	32793	73%	**48	90%
[SNPE Vectan SP 10]*	<<locked>>	81%	35404	79%	**50	92%
[SNPE Vectan Tubal 3000]*	<<locked>>	85%	31720	71%	**49	90%
[SNPE Vectan Tubal 5000]*	<<locked>>	89%	29182	65%	**87	90%
[Shooters World Match Rifle]*	<<locked>>	91%	33620	75%	**36	90%
[Somchem S335]*	<<locked>>	83%	29182	65%	**97	90%
Vihtavuori N120	<<locked>>	81%	37130	83%	**50	100%
Vihtavuori N130	<<locked>>	81%	31517	70%	**79	95%
[Vihtavuori N133]*	<<locked>>	81%	25976	58%	**99	90%
[Vihtavuori N135]*	<<locked>>	91%	26600	59%	**84	90%
[Vihtavuori N140]*	<<locked>>	89%	30951	69%	**95	90%
[Vihtavuori N540]*	<<locked>>	91%	32532	72%	**64	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