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Load data for .350 Mag. Rigby + .358 | 250gr | Hornady InterLock SP-RP

Recommended Powder(s): Alliant Reloder-17, Hodgdon Hybrid 100V, ReloadSwiss RS 60, Somchem S365

.350 Mag. Rigby + .358 | 250gr | Hornady InterLock SP-RP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.358 | 250gr | Hornady InterLock SP-RP
Manufacturer SKU:
3520
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.358" | 9.09mm
Bullet Length:
1.302" | 33.1mm
Caliber:
.350 Mag. Rigby load data
Case Length (l3):
2.750" | 69.8mm
Cartridge Length (C.O.L.):
3.521" | 89.4mm
Seated Depth:
0.531" | 13.5mm
Shank Seated Depth:
0.531" | 13.5mm
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_B2799_C501
Last updated:
2025-01-01

Load data for 90 loads in caliber .350 Mag. Rigby with .358 | 250gr | Hornady InterLock SP-RP bullet and 45 powders such as Alliant Reloder-17, Hodgdon Hybrid 100V, ReloadSwiss RS 60, Somchem S365. 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".

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  • We recommend you limit powder range to relevant brands to speed up re-calculation of results

    Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

    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.

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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>>
83%
40248
90%
**69
98%
[Accurate 2700]*
<<locked>>
84%
39943
89%
**10
93%
[Accurate 3100]*
<<locked>>
97%
33402
74%
**97
92%
Accurate 4350
<<locked>>
92%
39914
89%
**51
97%
Alliant Reloder- TS 15.5
<<locked>>
84%
40103
89%
**98
99%
Alliant Reloder-16
<<locked>>
92%
39827
89%
**54
97%
Alliant Reloder-17 👍
<<locked>>
88%
40147
89%
**93
99%
Alliant Reloder-23
<<locked>>
97%
33185
74%
**36
96%
Alliant Reloder-26
<<locked>>
97%
36114
80%
**51
95%
Hodgdon H380
<<locked>>
83%
40306
90%
**95
97%
[Hodgdon H414]*
<<locked>>
87%
40234
89%
**41
94%
[Hodgdon H4350]*
<<locked>>
93%
40147
89%
**79
93%
Hodgdon Hybrid 100V 👍
<<locked>>
95%
40379
90%
**28
99%
Hodgdon LVR
<<locked>>
89%
39827
89%
**31
96%
[Hodgdon Superperformance]*
<<locked>>
90%
40292
90%
**57
93%
Hodgdon VARGET
<<locked>>
84%
40248
90%
**69
98%
IMR 4064
<<locked>>
84%
40103
89%
**56
98%
[IMR 4166 Enduron]*
<<locked>>
84%
40016
89%
**26
94%
[IMR 4350]*
<<locked>>
91%
40132
89%
**79
93%
[IMR 4451 Enduron]*
<<locked>>
86%
40292
90%
**59
94%
IMR 4831
<<locked>>
97%
40466
90%
**44
97%
Lovex S065
<<locked>>
88%
40408
90%
**72
96%
[Lovex S070]*
<<locked>>
90%
40219
89%
**88
94%
Norma URP
<<locked>>
92%
40205
89%
**51
97%
Ramshot Hunter
<<locked>>
92%
40176
89%
**48
95%
ReloadSwiss RS 60 👍
<<locked>>
89%
40147
89%
**00
99%
ReloadSwiss RS 62
<<locked>>
92%
40277
90%
**80
97%
ReloadSwiss RS 70
<<locked>>
92%
39784
88%
**67
96%
Rottweil R 903
<<locked>>
86%
40059
89%
**98
99%
[Rottweil R 907]*
<<locked>>
87%
39885
89%
**49
93%
SNPE Vectan SP 11
<<locked>>
85%
40001
89%
**28
98%
SNPE Vectan Tubal 5000
<<locked>>
84%
40408
90%
**06
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
89%
40147
89%
**29
94%
Shooters World Long Rifle
<<locked>>
88%
40408
90%
**72
96%
Somchem S355
<<locked>>
85%
40408
90%
**92
99%
Somchem S365 👍
<<locked>>
95%
40379
90%
**97
100%
[Somchem S385]*
<<locked>>
97%
39465
88%
**11
93%
Vihtavuori N135
<<locked>>
86%
40016
89%
**46
100%
Vihtavuori N150
<<locked>>
91%
40408
90%
**72
99%
Vihtavuori N160
<<locked>>
89%
40219
89%
**08
97%
Vihtavuori N550
<<locked>>
89%
40248
90%
**41
97%
Vihtavuori N555
<<locked>>
97%
35520
79%
**08
96%
Winchester 6.5 StaBALL
<<locked>>
90%
40248
90%
**95
99%
[Winchester 760]*
<<locked>>
87%
40234
89%
**41
94%
Winchester StaBALL HD
<<locked>>
97%
29617
66%
**06
95%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
37594
84%
**13
97%
[Accurate 2700]*
<<locked>>
81%
35911
80%
**28
91%
[Accurate 3100]*
<<locked>>
92%
28950
64%
**92
90%
[Accurate 4350]*
<<locked>>
81%
27630
61%
**72
92%
Alliant Reloder- TS 15.5
<<locked>>
81%
36840
82%
**33
98%
[Alliant Reloder-16]*
<<locked>>
81%
28892
64%
**85
92%
Alliant Reloder-17
<<locked>>
81%
31807
71%
**97
96%
[Alliant Reloder-23]*
<<locked>>
86%
23946
53%
**60
90%
[Alliant Reloder-26]*
<<locked>>
90%
28834
64%
**57
90%
Hodgdon H380
<<locked>>
81%
37550
84%
**43
96%
[Hodgdon H414]*
<<locked>>
81%
32822
73%
**80
91%
[Hodgdon H4350]*
<<locked>>
87%
33779
75%
**44
90%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
26179
58%
**96
93%
[Hodgdon LVR]*
<<locked>>
81%
31053
69%
**31
92%
[Hodgdon Superperformance]*
<<locked>>
86%
34737
77%
**33
90%
Hodgdon VARGET
<<locked>>
81%
37173
83%
**10
97%
IMR 4064
<<locked>>
81%
36753
82%
**97
97%
[IMR 4166 Enduron]*
<<locked>>
81%
36970
82%
**64
93%
[IMR 4350]*
<<locked>>
85%
33750
75%
**44
90%
[IMR 4451 Enduron]*
<<locked>>
81%
34795
77%
**44
91%
[IMR 4831]*
<<locked>>
82%
25193
56%
**77
90%
[Lovex S065]*
<<locked>>
81%
32039
71%
**92
92%
[Lovex S070]*
<<locked>>
82%
31082
69%
**85
90%
[Norma URP]*
<<locked>>
81%
28340
63%
**69
92%
[Ramshot Hunter]*
<<locked>>
84%
30269
67%
**15
90%
ReloadSwiss RS 60
<<locked>>
81%
30980
69%
**83
97%
[ReloadSwiss RS 62]*
<<locked>>
81%
27760
62%
**78
91%
[ReloadSwiss RS 70]*
<<locked>>
82%
29414
65%
**08
90%
Rottweil R 903
<<locked>>
81%
34185
76%
**83
97%
[Rottweil R 907]*
<<locked>>
81%
33344
74%
**11
90%
SNPE Vectan SP 11
<<locked>>
81%
35244
78%
**29
97%
SNPE Vectan Tubal 5000
<<locked>>
81%
36970
82%
**47
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
30879
69%
**39
90%
[Shooters World Long Rifle]*
<<locked>>
81%
32039
71%
**92
92%
Somchem S355
<<locked>>
81%
35085
78%
**87
97%
Somchem S365
<<locked>>
81%
25541
57%
**33
95%
[Somchem S385]*
<<locked>>
92%
33765
75%
**87
90%
Vihtavuori N135
<<locked>>
81%
34142
76%
**38
100%
Vihtavuori N150
<<locked>>
81%
29921
67%
**56
97%
[Vihtavuori N160]*
<<locked>>
81%
30821
69%
**08
93%
[Vihtavuori N550]*
<<locked>>
81%
31285
70%
**47
93%
[Vihtavuori N555]*
<<locked>>
84%
24163
54%
**03
90%
Winchester 6.5 StaBALL
<<locked>>
81%
29747
66%
**59
95%
[Winchester 760]*
<<locked>>
81%
32822
73%
**80
91%
[Winchester StaBALL HD]*
<<locked>>
92%
25367
56%
**56
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

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