Load data for .350 Mag. Rigby + .358 | 220gr | Atomic 29 HP

Recommended Powder(s): ReloadSwiss RS 60

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.358 \| 220gr \| Atomic 29 HP
Bullet Weight:	220gr \| 14.3g
Bullet Diameter:	0.358" \| 9.09mm
Bullet Length:	<<locked>>
Caliber:	.350 Mag. Rigby load data
Case Length (l3):	2.750" \| 69.8mm
Cartridge Length (C.O.L.):	<<locked>>
Seated Depth:	<<locked>>
Shank Seated Depth:	<<locked>>
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_B12236_C501
Last updated:	2026-02-08

Load data for 106 loads in caliber .350 Mag. Rigby with .358 | 220gr | Atomic 29 HP bullet and 53 powders such as ReloadSwiss RS 60. 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 2208	<<locked>>	86%	40030	89%	**10	96%
Accurate 4064	<<locked>>	86%	40408	90%	**56	100%
Accurate 4350	<<locked>>	96%	40379	90%	**12	96%
Alliant Power Pro 2000-MR	<<locked>>	84%	40292	90%	**28	96%
Alliant Reloder- TS 15.5	<<locked>>	87%	40219	89%	**56	98%
Alliant Reloder-15	<<locked>>	84%	40335	90%	**59	96%
Alliant Reloder-16	<<locked>>	95%	39871	89%	**92	95%
Alliant Reloder-17	<<locked>>	91%	40364	90%	**44	97%
[Alliant Reloder-23]*	<<locked>>	97%	30313	67%	**88	93%
Bofors RP3	<<locked>>	87%	40059	89%	**62	98%
Hodgdon CFE223	<<locked>>	86%	40364	90%	**92	96%
Hodgdon H380	<<locked>>	86%	40001	89%	**43	95%
[Hodgdon H414]*	<<locked>>	90%	40118	89%	**82	92%
Hodgdon Hybrid 100V	<<locked>>	97%	38885	86%	**46	97%
[Hodgdon LVR]*	<<locked>>	92%	40205	89%	**82	94%
Hodgdon VARGET	<<locked>>	86%	40030	89%	**10	96%
IMR 3031	<<locked>>	84%	40234	89%	**69	100%
IMR 4064	<<locked>>	87%	40422	90%	**16	96%
[IMR 4166 Enduron]*	<<locked>>	86%	40074	89%	**67	92%
[IMR 4451 Enduron]*	<<locked>>	88%	40045	89%	**00	92%
[IMR 4831]*	<<locked>>	97%	36187	80%	**07	94%
IMR 4895	<<locked>>	84%	40176	89%	**66	97%
Lovex S062	<<locked>>	85%	40350	90%	**26	98%
[Lovex S065]*	<<locked>>	91%	40364	90%	**16	94%
[Lovex S070]*	<<locked>>	93%	40234	89%	**36	92%
Norma 203B	<<locked>>	85%	40277	90%	**62	97%
Norma URP	<<locked>>	95%	40001	89%	**92	95%
Ramshot Big Game	<<locked>>	85%	40263	90%	**82	97%
[Ramshot Hunter]*	<<locked>>	95%	40205	89%	**85	93%
ReloadSwiss RS 14	<<locked>>	96%	33330	74%	**77	100%
[ReloadSwiss RS 50]*	<<locked>>	85%	40176	89%	**13	93%
ReloadSwiss RS 52	<<locked>>	83%	40074	89%	**18	96%
ReloadSwiss RS 60 👍	<<locked>>	89%	40306	90%	**54	99%
ReloadSwiss RS 62	<<locked>>	96%	40451	90%	**35	95%
[ReloadSwiss RS 70]*	<<locked>>	95%	40321	90%	**12	94%
Rottweil R 902	<<locked>>	83%	40437	90%	**03	98%
Rottweil R 903	<<locked>>	89%	40030	89%	**56	98%
SNPE Vectan SP 11	<<locked>>	88%	40364	90%	**82	97%
SNPE Vectan Tubal 5000	<<locked>>	86%	40161	89%	**54	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	92%	39972	89%	**70	92%
[Shooters World Long Rifle]*	<<locked>>	91%	40364	90%	**16	94%
Shooters World Precision	<<locked>>	85%	40350	90%	**26	98%
Somchem S355	<<locked>>	88%	40147	89%	**46	97%
Somchem S365	<<locked>>	97%	38000	85%	**95	98%
Vihtavuori N135	<<locked>>	89%	40190	89%	**13	100%
Vihtavuori N140	<<locked>>	84%	40118	89%	**03	100%
Vihtavuori N150	<<locked>>	94%	40306	90%	**26	99%
Vihtavuori N160	<<locked>>	92%	40059	89%	**56	95%
Vihtavuori N540	<<locked>>	84%	40364	90%	**33	100%
Vihtavuori N550	<<locked>>	92%	40089	89%	**95	95%
[Vihtavuori N555]*	<<locked>>	97%	31879	71%	**64	93%
Winchester 6.5 StaBALL	<<locked>>	93%	40306	90%	**36	97%
[Winchester 760]*	<<locked>>	90%	40118	89%	**82	92%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
[ADI AR 2208]*	<<locked>>	81%	34490	77%	**88	94%
Accurate 4064	<<locked>>	81%	34069	76%	**21	99%
[Accurate 4350]*	<<locked>>	85%	28413	63%	**33	90%
[Alliant Power Pro 2000-MR]*	<<locked>>	81%	36564	81%	**43	94%
Alliant Reloder- TS 15.5	<<locked>>	81%	33634	75%	**15	96%
Alliant Reloder-15	<<locked>>	81%	36187	80%	**64	95%
[Alliant Reloder-16]*	<<locked>>	85%	30240	67%	**49	90%
[Alliant Reloder-17]*	<<locked>>	81%	28950	64%	**39	92%
[Alliant Reloder-23]*	<<locked>>	94%	27325	61%	**90	90%
Bofors RP3	<<locked>>	81%	32837	73%	**05	96%
[Hodgdon CFE223]*	<<locked>>	81%	34403	77%	**57	93%
[Hodgdon H380]*	<<locked>>	81%	33997	76%	**08	92%
[Hodgdon H414]*	<<locked>>	87%	36535	81%	**00	90%
[Hodgdon Hybrid 100V]*	<<locked>>	84%	25846	57%	**08	90%
[Hodgdon LVR]*	<<locked>>	84%	31140	69%	**65	90%
[Hodgdon VARGET]*	<<locked>>	81%	34113	76%	**82	94%
IMR 3031	<<locked>>	81%	36376	81%	**93	100%
[IMR 4064]*	<<locked>>	81%	33707	75%	**72	94%
[IMR 4166 Enduron]*	<<locked>>	83%	36434	81%	**92	90%
[IMR 4451 Enduron]*	<<locked>>	85%	36535	81%	**21	90%
[IMR 4831]*	<<locked>>	89%	28514	63%	**10	90%
IMR 4895	<<locked>>	81%	37072	82%	**03	96%
Lovex S062	<<locked>>	81%	35578	79%	**28	97%
[Lovex S065]*	<<locked>>	84%	32155	72%	**29	90%
[Lovex S070]*	<<locked>>	89%	35230	78%	**25	90%
Norma 203B	<<locked>>	81%	35708	79%	**57	96%
[Norma URP]*	<<locked>>	85%	29327	65%	**26	90%
Ramshot Big Game	<<locked>>	81%	35027	78%	**61	95%
[Ramshot Hunter]*	<<locked>>	91%	34867	78%	**67	90%
ReloadSwiss RS 14	<<locked>>	92%	31589	70%	**44	100%
[ReloadSwiss RS 50]*	<<locked>>	81%	34737	77%	**92	90%
ReloadSwiss RS 52	<<locked>>	81%	37231	83%	**56	95%
ReloadSwiss RS 60	<<locked>>	81%	30951	69%	**18	96%
[ReloadSwiss RS 62]*	<<locked>>	87%	30095	67%	**75	90%
[ReloadSwiss RS 70]*	<<locked>>	89%	33997	76%	**61	90%
Rottweil R 902	<<locked>>	81%	37652	84%	**48	98%
Rottweil R 903	<<locked>>	81%	30864	69%	**52	95%
[SNPE Vectan SP 11]*	<<locked>>	81%	32184	72%	**98	94%
SNPE Vectan Tubal 5000	<<locked>>	81%	33953	76%	**36	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	88%	35201	78%	**75	90%
[Shooters World Long Rifle]*	<<locked>>	84%	32155	72%	**29	90%
Shooters World Precision	<<locked>>	81%	35578	79%	**28	97%
Somchem S355	<<locked>>	81%	31821	71%	**59	95%
[Somchem S365]*	<<locked>>	81%	23438	52%	**75	90%
Vihtavuori N135	<<locked>>	81%	30995	69%	**23	99%
Vihtavuori N140	<<locked>>	81%	36898	82%	**41	99%
[Vihtavuori N150]*	<<locked>>	81%	27122	60%	**18	94%
[Vihtavuori N160]*	<<locked>>	82%	29356	65%	**00	90%
Vihtavuori N540	<<locked>>	81%	36651	82%	**61	99%
[Vihtavuori N550]*	<<locked>>	82%	29443	65%	**33	90%
[Vihtavuori N555]*	<<locked>>	93%	27789	62%	**46	90%
[Winchester 6.5 StaBALL]*	<<locked>>	81%	27441	61%	**11	91%
[Winchester 760]*	<<locked>>	87%	36535	81%	**00	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