top of page

Load data for .338 Rem. Ultra Mag + .338 | 175gr | AERO SOSR,- smax:16.30

Recommended Powder(s): Alliant Reloder-16, Hodgdon LVR, Norma URP, ReloadSwiss RS 62, Vihtavuori N550

.338 Rem. Ultra Mag + .338 | 175gr | AERO SOSR,- smax:16.30

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 175gr | AERO SOSR,- smax:16.30
Bullet Weight:
175gr | 11.3g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.335" | 33.9mm
Caliber:
.338 Rem. Ultra Mag load data
Case Length (l3):
2.760" | 70.1mm
Cartridge Length (C.O.L.):
3.546" | 90.1mm
Seated Depth:
0.549" | 13.9mm
Shank Seated Depth:
0.549" | 13.9mm
Case Capacity:
110.0 Grains of Water | 7.14 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B89_C459
Last updated:
2025-01-01

Load data for 182 loads in caliber .338 Rem. Ultra Mag with .338 | 175gr | AERO SOSR,- smax:16.30 bullet and 91 powders such as Alliant Reloder-16, Hodgdon LVR, Norma URP, ReloadSwiss RS 62, Vihtavuori N550. 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.

    .

    Loading_icon.gif

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>>
84%
56942
89%
**38
100%
ADI AR 2208
<<locked>>
89%
57203
90%
**25
100%
ADI AR 2209
<<locked>>
97%
50676
79%
**89
96%
[ADI AR 2213]*
<<locked>>
97%
45165
71%
**94
92%
Accurate 2700
<<locked>>
90%
56913
89%
**59
98%
Accurate 3100
<<locked>>
97%
43091
68%
**12
97%
Accurate 4064
<<locked>>
88%
56971
89%
**99
100%
Accurate 4350
<<locked>>
95%
57145
90%
**77
100%
Alliant Reloder- TS 15.5
<<locked>>
89%
57290
90%
**45
100%
Alliant Reloder-15
<<locked>>
87%
56869
89%
**51
100%
Alliant Reloder-16 👍
<<locked>>
97%
57000
89%
**30
100%
Alliant Reloder-17
<<locked>>
92%
57145
90%
**33
100%
Alliant Reloder-19
<<locked>>
97%
49661
78%
**69
96%
[Alliant Reloder-22]*
<<locked>>
97%
43613
68%
**87
94%
Alliant Reloder-23
<<locked>>
97%
41060
64%
**44
99%
Alliant Reloder-25
<<locked>>
97%
36100
57%
**36
95%
Alliant Reloder-26
<<locked>>
97%
46195
72%
**15
99%
Baschieri & Pellagri 107
<<locked>>
84%
56898
89%
**45
100%
Hodgdon CFE223
<<locked>>
87%
56623
89%
**77
100%
Hodgdon H380
<<locked>>
88%
57159
90%
**45
100%
Hodgdon H414
<<locked>>
91%
57406
90%
**94
99%
Hodgdon H4350
<<locked>>
97%
54766
86%
**99
98%
[Hodgdon H4831 SC]*
<<locked>>
97%
47369
74%
**84
92%
Hodgdon Hybrid 100V
<<locked>>
97%
53055
83%
**89
100%
Hodgdon LVR 👍
<<locked>>
94%
57232
90%
**81
100%
Hodgdon Superperformance
<<locked>>
94%
57319
90%
**20
98%
Hodgdon VARGET
<<locked>>
90%
56913
89%
**15
100%
Hodgdon TrailBoss
<<locked>>
96%
33939
53%
**86
100%
IMR 3031
<<locked>>
86%
57058
89%
**22
100%
IMR 4064
<<locked>>
90%
57043
89%
**22
100%
IMR 4166 Enduron
<<locked>>
91%
57174
90%
**09
98%
IMR 4350
<<locked>>
96%
57014
89%
**38
98%
IMR 4451 Enduron
<<locked>>
92%
56913
89%
**18
98%
IMR 4831
<<locked>>
97%
49980
78%
**49
99%
IMR 4895
<<locked>>
86%
56956
89%
**68
100%
[IMR 4955 Enduron]*
<<locked>>
97%
46905
74%
**48
92%
[IMR 7828 SSC]*
<<locked>>
97%
45861
72%
**13
92%
IMR 8208 XBR
<<locked>>
83%
57392
90%
**12
100%
Lovex D073.6
<<locked>>
84%
56869
89%
**09
100%
Lovex S060
<<locked>>
85%
57290
90%
**82
100%
Lovex S062
<<locked>>
88%
57406
90%
**15
100%
Lovex S065
<<locked>>
94%
57217
90%
**18
99%
Lovex S070
<<locked>>
95%
57000
89%
**38
99%
[Lovex S071]*
<<locked>>
97%
35665
56%
**51
94%
Norma 201
<<locked>>
85%
56927
89%
**09
100%
Norma 202
<<locked>>
84%
56826
89%
**92
100%
Norma 203B
<<locked>>
88%
57363
90%
**58
100%
Norma 204
<<locked>>
96%
57377
90%
**77
97%
Norma MRP
<<locked>>
97%
46166
72%
**76
96%
Norma URP 👍
<<locked>>
96%
57043
89%
**91
100%
Ramshot Big Game
<<locked>>
87%
57217
90%
**68
100%
Ramshot Hunter
<<locked>>
97%
57116
89%
**00
99%
[Ramshot Magnum]*
<<locked>>
97%
41930
66%
**22
94%
ReloadSwiss RS 14
<<locked>>
97%
34795
55%
**36
100%
ReloadSwiss RS 50
<<locked>>
88%
57261
90%
**22
99%
ReloadSwiss RS 52
<<locked>>
87%
57130
90%
**68
100%
ReloadSwiss RS 60
<<locked>>
93%
57203
90%
**56
100%
ReloadSwiss RS 62 👍
<<locked>>
95%
57392
90%
**00
100%
ReloadSwiss RS 70
<<locked>>
96%
57188
90%
**43
100%
Rottweil R 902
<<locked>>
87%
57072
89%
**95
100%
Rottweil R 903
<<locked>>
91%
57087
89%
**38
100%
Rottweil R 904
<<locked>>
97%
52388
82%
**59
95%
Rottweil R 905
<<locked>>
97%
48834
77%
**59
96%
Rottweil R 907
<<locked>>
93%
57058
89%
**22
98%
SNPE Vectan SP 11
<<locked>>
90%
57014
89%
**64
100%
SNPE Vectan SP 7
<<locked>>
83%
57363
90%
**22
100%
SNPE Vectan SP 9
<<locked>>
85%
57087
89%
**31
100%
SNPE Vectan Tubal 3000
<<locked>>
84%
56811
89%
**23
100%
SNPE Vectan Tubal 5000
<<locked>>
90%
56869
89%
**07
100%
SNPE Vectan Tubal 7000
<<locked>>
94%
57363
90%
**76
99%
Shooters World Long Rifle
<<locked>>
94%
57217
90%
**18
99%
Shooters World Match Rifle
<<locked>>
84%
56869
89%
**09
100%
Shooters World Precision
<<locked>>
88%
57406
90%
**15
100%
Somchem S335
<<locked>>
85%
56913
89%
**23
100%
Somchem S341
<<locked>>
84%
57217
90%
**15
100%
Somchem S355
<<locked>>
91%
57319
90%
**38
100%
[Somchem S361]*
<<locked>>
97%
54215
85%
**40
94%
Somchem S365
<<locked>>
97%
53780
84%
**54
100%
Somchem S385
<<locked>>
97%
49472
78%
**30
97%
Vihtavuori N133
<<locked>>
87%
57421
90%
**10
100%
Vihtavuori N135
<<locked>>
92%
56913
89%
**53
100%
Vihtavuori N140
<<locked>>
87%
57029
89%
**63
100%
Vihtavuori N150
<<locked>>
96%
57203
90%
**92
100%
Vihtavuori N160
<<locked>>
93%
56855
89%
**41
100%
[Vihtavuori N165]*
<<locked>>
97%
41002
64%
**53
94%
Vihtavuori N540
<<locked>>
87%
57246
90%
**89
100%
Vihtavuori N550 👍
<<locked>>
93%
57072
89%
**81
100%
Vihtavuori N555
<<locked>>
97%
45527
71%
**27
99%
Winchester 6.5 StaBALL
<<locked>>
94%
56811
89%
**05
100%
Winchester 760
<<locked>>
91%
57406
90%
**94
99%
Winchester StaBALL HD
<<locked>>
97%
34040
53%
**61
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
51517
81%
**53
100%
ADI AR 2208
<<locked>>
81%
43584
68%
**89
99%
[ADI AR 2209]*
<<locked>>
87%
36622
57%
**87
90%
[ADI AR 2213]*
<<locked>>
94%
41089
64%
**02
90%
[Accurate 2700]*
<<locked>>
81%
42032
66%
**00
94%
[Accurate 3100]*
<<locked>>
85%
28166
44%
**61
90%
Accurate 4064
<<locked>>
81%
45092
71%
**22
100%
Accurate 4350
<<locked>>
81%
33765
53%
**38
95%
Alliant Reloder- TS 15.5
<<locked>>
81%
43613
68%
**22
100%
Alliant Reloder-15
<<locked>>
81%
46804
73%
**84
99%
Alliant Reloder-16
<<locked>>
81%
33736
53%
**57
95%
Alliant Reloder-17
<<locked>>
81%
38218
60%
**95
99%
[Alliant Reloder-19]*
<<locked>>
87%
35578
56%
**64
90%
[Alliant Reloder-22]*
<<locked>>
91%
35897
56%
**10
90%
[Alliant Reloder-23]*
<<locked>>
81%
24250
38%
**79
91%
[Alliant Reloder-25]*
<<locked>>
91%
29472
46%
**36
90%
[Alliant Reloder-26]*
<<locked>>
83%
27427
43%
**20
90%
Baschieri & Pellagri 107
<<locked>>
81%
51576
81%
**66
100%
Hodgdon CFE223
<<locked>>
81%
46093
72%
**00
99%
Hodgdon H380
<<locked>>
81%
44411
70%
**31
98%
[Hodgdon H414]*
<<locked>>
81%
39595
62%
**76
94%
[Hodgdon H4350]*
<<locked>>
81%
32837
51%
**49
90%
[Hodgdon H4831 SC]*
<<locked>>
93%
41626
65%
**76
90%
Hodgdon Hybrid 100V
<<locked>>
81%
31082
49%
**49
96%
Hodgdon LVR
<<locked>>
81%
37014
58%
**10
96%
[Hodgdon Superperformance]*
<<locked>>
81%
35534
56%
**87
92%
Hodgdon VARGET
<<locked>>
81%
43337
68%
**89
99%
Hodgdon TrailBoss
<<locked>>
81%
27021
42%
**32
100%
IMR 3031
<<locked>>
81%
47703
75%
**84
100%
IMR 4064
<<locked>>
81%
42670
67%
**69
99%
IMR 4166 Enduron
<<locked>>
81%
42221
66%
**40
95%
[IMR 4350]*
<<locked>>
81%
34635
54%
**02
91%
[IMR 4451 Enduron]*
<<locked>>
81%
40321
63%
**17
94%
[IMR 4831]*
<<locked>>
81%
29588
46%
**13
93%
IMR 4895
<<locked>>
81%
48080
75%
**23
100%
[IMR 4955 Enduron]*
<<locked>>
92%
40538
64%
**20
90%
[IMR 7828 SSC]*
<<locked>>
93%
40814
64%
**12
90%
IMR 8208 XBR
<<locked>>
81%
53679
84%
**59
100%
Lovex D073.6
<<locked>>
81%
51271
80%
**30
100%
Lovex S060
<<locked>>
81%
50821
80%
**87
100%
Lovex S062
<<locked>>
81%
45716
72%
**28
100%
Lovex S065
<<locked>>
81%
37579
59%
**64
95%
[Lovex S070]*
<<locked>>
81%
35810
56%
**35
93%
[Lovex S071]*
<<locked>>
90%
28166
44%
**61
90%
Norma 201
<<locked>>
81%
50285
79%
**04
100%
Norma 202
<<locked>>
81%
50734
80%
**97
100%
Norma 203B
<<locked>>
81%
46180
72%
**71
99%
[Norma 204]*
<<locked>>
83%
36303
57%
**64
90%
[Norma MRP]*
<<locked>>
87%
32343
51%
**38
90%
Norma URP
<<locked>>
81%
34040
53%
**44
95%
Ramshot Big Game
<<locked>>
81%
46470
73%
**94
99%
[Ramshot Hunter]*
<<locked>>
81%
33170
52%
**15
92%
[Ramshot Magnum]*
<<locked>>
92%
34635
54%
**44
90%
ReloadSwiss RS 14
<<locked>>
81%
27398
43%
**72
100%
ReloadSwiss RS 50
<<locked>>
81%
44701
70%
**08
97%
ReloadSwiss RS 52
<<locked>>
81%
45614
71%
**84
100%
ReloadSwiss RS 60
<<locked>>
81%
37043
58%
**79
99%
ReloadSwiss RS 62
<<locked>>
81%
33721
53%
**51
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
33489
52%
**51
94%
Rottweil R 902
<<locked>>
81%
47500
74%
**44
100%
Rottweil R 903
<<locked>>
81%
41002
64%
**59
99%
[Rottweil R 904]*
<<locked>>
88%
38696
61%
**90
90%
[Rottweil R 905]*
<<locked>>
87%
34853
55%
**57
90%
[Rottweil R 907]*
<<locked>>
81%
38711
61%
**77
93%
SNPE Vectan SP 11
<<locked>>
81%
42206
66%
**15
99%
SNPE Vectan SP 7
<<locked>>
81%
52431
82%
**40
99%
SNPE Vectan SP 9
<<locked>>
81%
50053
78%
**23
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
51213
80%
**41
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
42888
67%
**03
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
36767
58%
**95
93%
Shooters World Long Rifle
<<locked>>
81%
37579
59%
**64
95%
Shooters World Match Rifle
<<locked>>
81%
51271
80%
**30
100%
Shooters World Precision
<<locked>>
81%
45716
72%
**28
100%
Somchem S335
<<locked>>
81%
51053
80%
**38
100%
Somchem S341
<<locked>>
81%
52286
82%
**33
100%
Somchem S355
<<locked>>
81%
41510
65%
**66
99%
[Somchem S361]*
<<locked>>
89%
41423
65%
**07
90%
Somchem S365
<<locked>>
81%
30545
48%
**95
98%
[Somchem S385]*
<<locked>>
85%
32271
51%
**62
90%
Vihtavuori N133
<<locked>>
81%
48269
76%
**82
100%
Vihtavuori N135
<<locked>>
81%
40219
63%
**97
100%
Vihtavuori N140
<<locked>>
81%
47601
75%
**22
100%
Vihtavuori N150
<<locked>>
81%
35302
55%
**12
99%
Vihtavuori N160
<<locked>>
81%
37115
58%
**87
96%
[Vihtavuori N165]*
<<locked>>
91%
33591
53%
**82
90%
Vihtavuori N540
<<locked>>
81%
47195
74%
**44
100%
Vihtavuori N550
<<locked>>
81%
37608
59%
**20
96%
[Vihtavuori N555]*
<<locked>>
81%
26078
41%
**51
92%
Winchester 6.5 StaBALL
<<locked>>
81%
35360
55%
**21
98%
[Winchester 760]*
<<locked>>
81%
39595
62%
**76
94%
[Winchester StaBALL HD]*
<<locked>>
85%
24033
38%
**11
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

bottom of page