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Load data for .358 STA + .358 | 158gr | Rim Rock RN Cowboy

Recommended Powder(s): ADI AR 2206H, Hodgdon BL-C2, Hodgdon H4895, Hodgdon LEVERevolution, Winchester 748

.358 STA + .358 | 158gr | Rim Rock RN Cowboy

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.358 | 158gr | Rim Rock RN Cowboy
Manufacturer SKU:
#014
Bullet Weight:
158gr | 10.2g
Bullet Diameter:
0.358" | 9.09mm
Bullet Length:
<<locked>>
Caliber:
.358 STA load data
Case Length (l3):
2.847" | 72.3mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
105.0 Grains of Water | 6.82 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
65000 psi | 4482 bar
LID:
LID_B10540_C527
Last updated:
2026-06-09

Load data for 200 loads in caliber .358 STA with .358 | 158gr | Rim Rock RN Cowboy bullet and 100 powders such as ADI AR 2206H, Hodgdon BL-C2, Hodgdon H4895, Hodgdon LEVERevolution, Winchester 748. 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".

  • No data yet

  • 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 2206H 👍
<<locked>>
93%
58494
90%
**19
99%
ADI AR 2208
<<locked>>
97%
56579
87%
**60
98%
ADI AR 2219
<<locked>>
83%
58030
89%
**92
100%
ADI Benchmark 8208
<<locked>>
91%
58407
90%
**89
100%
Accurate 2015
<<locked>>
90%
58349
90%
**23
100%
Accurate 2460
<<locked>>
87%
57899
89%
**53
100%
Accurate 2495
<<locked>>
96%
58465
90%
**60
100%
Accurate 2520
<<locked>>
90%
58204
90%
**92
100%
[Accurate 2700]*
<<locked>>
95%
58421
90%
**27
94%
Accurate 4064
<<locked>>
97%
56449
87%
**79
100%
[Accurate 4350]*
<<locked>>
97%
42482
65%
**66
94%
Alliant AR-Comp
<<locked>>
91%
58218
90%
**83
100%
Alliant Power Pro 2000-MR
<<locked>>
94%
58059
89%
**33
98%
Alliant Reloder- TS 15.5
<<locked>>
97%
55666
86%
**83
99%
Alliant Reloder-10x
<<locked>>
86%
58392
90%
**46
100%
Alliant Reloder-15
<<locked>>
96%
58465
90%
**32
99%
[Alliant Reloder-16]*
<<locked>>
97%
42946
66%
**86
94%
Alliant Reloder-17
<<locked>>
97%
50009
77%
**79
98%
Baschieri & Pellagri 106
<<locked>>
85%
58262
90%
**68
100%
Baschieri & Pellagri 107
<<locked>>
92%
58276
90%
**25
98%
Bofors RP3
<<locked>>
97%
55898
86%
**89
99%
[Bofors RP7]*
<<locked>>
97%
50067
77%
**15
92%
Hodgdon BL-C2 👍
<<locked>>
91%
58276
90%
**19
100%
Hodgdon Benchmark
<<locked>>
90%
58320
90%
**50
100%
Hodgdon CFE223
<<locked>>
88%
58363
90%
**01
99%
Hodgdon H322
<<locked>>
86%
58160
89%
**86
100%
Hodgdon H335
<<locked>>
86%
58291
90%
**92
100%
Hodgdon H380
<<locked>>
97%
58320
90%
**12
98%
[Hodgdon H414]*
<<locked>>
97%
46311
71%
**28
92%
[Hodgdon H4350]*
<<locked>>
97%
50879
78%
**74
92%
Hodgdon H4895 👍
<<locked>>
92%
58407
90%
**28
99%
Hodgdon Hybrid 100V
<<locked>>
97%
38870
60%
**48
95%
Hodgdon VARGET
<<locked>>
93%
58291
90%
**09
99%
Hodgdon LEVERevolution 👍
<<locked>>
94%
58218
90%
**71
100%
Hodgdon TrailBoss
<<locked>>
96%
32489
50%
**70
100%
IMR 3031
<<locked>>
92%
58247
90%
**35
100%
IMR 4064
<<locked>>
96%
58291
90%
**89
99%
IMR 4166 Enduron
<<locked>>
94%
58320
90%
**43
95%
IMR 4198
<<locked>>
86%
58015
89%
**01
100%
[IMR 4451 Enduron]*
<<locked>>
97%
52228
80%
**68
94%
[IMR 4831]*
<<locked>>
97%
40944
63%
**97
94%
IMR 4895
<<locked>>
95%
57928
89%
**51
99%
IMR 8208 XBR
<<locked>>
91%
58407
90%
**89
100%
Lovex D073.4
<<locked>>
85%
58305
90%
**60
100%
Lovex D073.5
<<locked>>
87%
58015
89%
**66
100%
Lovex D073.6
<<locked>>
93%
58030
89%
**09
100%
Lovex S060
<<locked>>
92%
58421
90%
**43
99%
Lovex S062
<<locked>>
97%
58479
90%
**06
100%
[Lovex S065]*
<<locked>>
97%
47761
73%
**86
94%
[Lovex S070]*
<<locked>>
97%
45034
69%
**46
92%
Norma 201
<<locked>>
93%
57928
89%
**76
100%
Norma 202
<<locked>>
93%
58117
89%
**92
100%
Norma 203B
<<locked>>
96%
57943
89%
**25
99%
[Norma URP]*
<<locked>>
97%
42656
66%
**66
94%
Ramshot Big Game
<<locked>>
95%
58088
89%
**48
99%
[Ramshot Hunter]*
<<locked>>
97%
42685
66%
**50
92%
Ramshot TAC
<<locked>>
90%
58407
90%
**83
97%
Ramshot Wild Boar
<<locked>>
91%
58363
90%
**19
99%
Ramshot X-Terminator
<<locked>>
88%
58015
89%
**60
99%
ReloadSwiss RS 14
<<locked>>
97%
32924
51%
**23
100%
ReloadSwiss RS 40
<<locked>>
87%
58233
90%
**76
100%
ReloadSwiss RS 50
<<locked>>
97%
58320
90%
**83
96%
ReloadSwiss RS 52
<<locked>>
93%
58073
89%
**94
99%
ReloadSwiss RS 60
<<locked>>
97%
53534
82%
**55
100%
[ReloadSwiss RS 62]*
<<locked>>
97%
42496
65%
**73
94%
[ReloadSwiss RS 70]*
<<locked>>
97%
43787
67%
**92
93%
Rottweil R 901
<<locked>>
91%
58378
90%
**69
100%
Rottweil R 902
<<locked>>
95%
57986
89%
**69
100%
Rottweil R 903
<<locked>>
97%
51837
80%
**17
99%
[Rottweil R 907]*
<<locked>>
97%
50067
77%
**15
92%
SNPE Vectan SP 10
<<locked>>
83%
58030
89%
**89
100%
SNPE Vectan SP 11
<<locked>>
97%
55172
85%
**92
99%
SNPE Vectan SP 3
<<locked>>
86%
58450
90%
**56
100%
SNPE Vectan SP 7
<<locked>>
91%
58334
90%
**89
98%
SNPE Vectan SP 9
<<locked>>
93%
57928
89%
**96
99%
SNPE Vectan Tubal 3000
<<locked>>
92%
58305
90%
**07
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
56043
86%
**61
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
97%
48182
74%
**36
93%
[Shooters World Long Rifle]*
<<locked>>
97%
47761
73%
**86
94%
Shooters World Match Rifle
<<locked>>
93%
58030
89%
**09
100%
Shooters World Precision
<<locked>>
97%
58479
90%
**06
100%
Shooters World Tactical Rifle
<<locked>>
85%
58044
89%
**40
99%
Somchem S321
<<locked>>
88%
58334
90%
**02
100%
Somchem S335
<<locked>>
93%
58102
89%
**04
100%
Somchem S341
<<locked>>
92%
58436
90%
**83
99%
Somchem S355
<<locked>>
97%
52837
81%
**17
99%
Somchem S365
<<locked>>
97%
37637
58%
**84
96%
Vihtavuori N130
<<locked>>
88%
58378
90%
**81
100%
Vihtavuori N133
<<locked>>
92%
58363
90%
**91
100%
Vihtavuori N135
<<locked>>
97%
57508
88%
**43
100%
Vihtavuori N140
<<locked>>
95%
58131
89%
**43
100%
Vihtavuori N150
<<locked>>
97%
51010
78%
**45
99%
Vihtavuori N160
<<locked>>
97%
45382
70%
**79
95%
Vihtavuori N530
<<locked>>
90%
58378
90%
**83
100%
Vihtavuori N540
<<locked>>
95%
58044
89%
**56
100%
Vihtavuori N550
<<locked>>
97%
44527
69%
**79
95%
Winchester 6.5 StaBALL
<<locked>>
97%
46717
72%
**76
98%
Winchester 748 👍
<<locked>>
91%
58407
90%
**38
100%
[Winchester 760]*
<<locked>>
97%
46311
71%
**28
92%
Winchester StaBALL Match
<<locked>>
93%
57943
89%
**15
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
39740
61%
**41
95%
[ADI AR 2208]*
<<locked>>
81%
33779
52%
**61
91%
ADI AR 2219
<<locked>>
81%
53127
82%
**07
100%
ADI Benchmark 8208
<<locked>>
81%
42134
65%
**74
97%
Accurate 2015
<<locked>>
81%
42743
66%
**58
100%
Accurate 2460
<<locked>>
81%
47108
72%
**66
100%
Accurate 2495
<<locked>>
81%
34171
53%
**04
99%
Accurate 2520
<<locked>>
81%
42279
65%
**97
99%
[Accurate 2700]*
<<locked>>
87%
44353
68%
**54
90%
Accurate 4064
<<locked>>
81%
32358
50%
**67
97%
[Accurate 4350]*
<<locked>>
91%
33301
51%
**30
90%
Alliant AR-Comp
<<locked>>
81%
41017
63%
**94
100%
[Alliant Power Pro 2000-MR]*
<<locked>>
81%
36056
55%
**18
91%
[Alliant Reloder- TS 15.5]*
<<locked>>
81%
32576
50%
**64
93%
Alliant Reloder-10x
<<locked>>
81%
48965
75%
**89
100%
[Alliant Reloder-15]*
<<locked>>
81%
35389
54%
**36
92%
[Alliant Reloder-16]*
<<locked>>
90%
34664
53%
**49
90%
[Alliant Reloder-17]*
<<locked>>
83%
30661
47%
**51
90%
Baschieri & Pellagri 106
<<locked>>
81%
51721
80%
**69
100%
[Baschieri & Pellagri 107]*
<<locked>>
81%
38914
60%
**22
93%
[Bofors RP3]*
<<locked>>
81%
31647
49%
**51
93%
[Bofors RP7]*
<<locked>>
93%
43598
67%
**81
90%
Hodgdon BL-C2
<<locked>>
81%
40176
62%
**77
97%
Hodgdon Benchmark
<<locked>>
81%
44019
68%
**81
98%
Hodgdon CFE223
<<locked>>
81%
44744
69%
**41
96%
Hodgdon H322
<<locked>>
81%
48312
74%
**15
100%
Hodgdon H335
<<locked>>
81%
49095
76%
**35
100%
[Hodgdon H380]*
<<locked>>
82%
34664
53%
**07
90%
[Hodgdon H414]*
<<locked>>
94%
41582
64%
**20
90%
[Hodgdon H4350]*
<<locked>>
94%
46311
71%
**76
90%
Hodgdon H4895
<<locked>>
81%
40132
62%
**61
96%
[Hodgdon Hybrid 100V]*
<<locked>>
89%
29399
45%
**72
90%
Hodgdon VARGET
<<locked>>
81%
38740
60%
**09
95%
Hodgdon LEVERevolution
<<locked>>
81%
35911
55%
**99
95%
Hodgdon TrailBoss
<<locked>>
81%
25759
40%
**03
100%
IMR 3031
<<locked>>
81%
38827
60%
**71
100%
[IMR 4064]*
<<locked>>
81%
35418
54%
**04
93%
[IMR 4166 Enduron]*
<<locked>>
83%
41234
63%
**02
90%
IMR 4198
<<locked>>
81%
49763
77%
**69
100%
[IMR 4451 Enduron]*
<<locked>>
90%
41916
64%
**41
90%
[IMR 4831]*
<<locked>>
91%
32953
51%
**97
90%
[IMR 4895]*
<<locked>>
81%
36274
56%
**86
94%
IMR 8208 XBR
<<locked>>
81%
42134
65%
**74
97%
Lovex D073.4
<<locked>>
81%
49487
76%
**15
99%
Lovex D073.5
<<locked>>
81%
47137
73%
**79
99%
Lovex D073.6
<<locked>>
81%
37985
58%
**09
98%
Lovex S060
<<locked>>
81%
40466
62%
**99
95%
Lovex S062
<<locked>>
81%
34679
53%
**97
95%
[Lovex S065]*
<<locked>>
89%
36898
57%
**33
90%
[Lovex S070]*
<<locked>>
94%
40785
63%
**41
90%
Norma 201
<<locked>>
81%
38305
59%
**79
96%
Norma 202
<<locked>>
81%
38754
60%
**12
98%
[Norma 203B]*
<<locked>>
81%
34780
54%
**23
93%
[Norma URP]*
<<locked>>
90%
33808
52%
**27
90%
[Ramshot Big Game]*
<<locked>>
81%
34490
53%
**27
92%
[Ramshot Hunter]*
<<locked>>
95%
39088
60%
**58
90%
[Ramshot TAC]*
<<locked>>
81%
42003
65%
**51
93%
Ramshot Wild Boar
<<locked>>
81%
41133
63%
**84
95%
Ramshot X-Terminator
<<locked>>
81%
45774
70%
**33
97%
ReloadSwiss RS 14
<<locked>>
81%
25788
40%
**42
100%
ReloadSwiss RS 40
<<locked>>
81%
47601
73%
**92
99%
[ReloadSwiss RS 50]*
<<locked>>
85%
39044
60%
**89
90%
[ReloadSwiss RS 52]*
<<locked>>
81%
36637
56%
**51
93%
[ReloadSwiss RS 60]*
<<locked>>
81%
30110
46%
**54
93%
[ReloadSwiss RS 62]*
<<locked>>
91%
34389
53%
**66
90%
[ReloadSwiss RS 70]*
<<locked>>
93%
38464
59%
**51
90%
Rottweil R 901
<<locked>>
81%
41843
64%
**61
99%
Rottweil R 902
<<locked>>
81%
36347
56%
**20
95%
[Rottweil R 903]*
<<locked>>
81%
29588
46%
**79
91%
[Rottweil R 907]*
<<locked>>
93%
43598
67%
**81
90%
SNPE Vectan SP 10
<<locked>>
81%
53359
82%
**07
100%
[SNPE Vectan SP 11]*
<<locked>>
81%
31343
48%
**48
91%
SNPE Vectan SP 3
<<locked>>
81%
50053
77%
**25
100%
[SNPE Vectan SP 7]*
<<locked>>
81%
39885
61%
**18
93%
[SNPE Vectan SP 9]*
<<locked>>
81%
38392
59%
**95
94%
SNPE Vectan Tubal 3000
<<locked>>
81%
40509
62%
**79
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
33199
51%
**02
98%
[SNPE Vectan Tubal 7000]*
<<locked>>
92%
40524
62%
**72
90%
[Shooters World Long Rifle]*
<<locked>>
89%
36898
57%
**33
90%
Shooters World Match Rifle
<<locked>>
81%
37985
58%
**09
98%
Shooters World Precision
<<locked>>
81%
34679
53%
**97
95%
Shooters World Tactical Rifle
<<locked>>
81%
50546
78%
**12
99%
Somchem S321
<<locked>>
81%
45223
70%
**53
98%
Somchem S335
<<locked>>
81%
39740
61%
**72
99%
Somchem S341
<<locked>>
81%
39581
61%
**18
95%
[Somchem S355]*
<<locked>>
81%
30719
47%
**95
91%
[Somchem S365]*
<<locked>>
87%
27311
42%
**49
90%
Vihtavuori N130
<<locked>>
81%
46064
71%
**81
100%
Vihtavuori N133
<<locked>>
81%
40727
63%
**82
100%
Vihtavuori N135
<<locked>>
81%
33649
52%
**84
99%
Vihtavuori N140
<<locked>>
81%
36724
56%
**40
98%
[Vihtavuori N150]*
<<locked>>
81%
29312
45%
**33
93%
[Vihtavuori N160]*
<<locked>>
88%
33721
52%
**90
90%
Vihtavuori N530
<<locked>>
81%
41887
64%
**61
97%
Vihtavuori N540
<<locked>>
81%
35491
55%
**20
98%
[Vihtavuori N550]*
<<locked>>
89%
34142
53%
**20
90%
[Winchester 6.5 StaBALL]*
<<locked>>
84%
29414
45%
**20
90%
Winchester 748
<<locked>>
81%
41104
63%
**04
98%
[Winchester 760]*
<<locked>>
94%
41582
64%
**20
90%
Winchester StaBALL Match
<<locked>>
81%
37550
58%
**99
95%

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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