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Load data for 8.5 mm Messner Magnum + .338 | 225gr | Barnes Solid BT

Recommended Powder(s): Alliant Reloder-26, Hodgdon H4350, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 70

8.5 mm Messner Magnum + .338 | 225gr | Barnes Solid BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Barnes Solid BT
Manufacturer SKU:
33821
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.507" | 38.3mm
Caliber:
8.5 mm Messner Magnum load data
Case Length (l3):
2.508" | 63.7mm
Cartridge Length (C.O.L.):
3.413" | 86.7mm
Seated Depth:
0.602" | 15.3mm
Shank Seated Depth:
0.502" | 12.8mm
Case Capacity:
106.0 Grains of Water | 6.88 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B679_C1203
Last updated:
2025-01-01
Recommended Twist Rate:
1:12 - 1:10

Load data for 166 loads in caliber 8.5 mm Messner Magnum with .338 | 225gr | Barnes Solid BT bullet and 83 powders such as Alliant Reloder-26, Hodgdon H4350, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 70. 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>>
87%
57363
90%
**76
100%
ADI AR 2209
<<locked>>
97%
56420
88%
**64
99%
ADI AR 2213
<<locked>>
97%
50067
78%
**85
96%
[ADI AR 2225]*
<<locked>>
97%
32227
51%
**41
93%
Accurate 2700
<<locked>>
87%
57101
89%
**40
99%
Accurate 3100
<<locked>>
97%
49588
78%
**17
99%
Accurate 4064
<<locked>>
84%
56724
89%
**33
100%
Accurate 4350
<<locked>>
92%
57145
90%
**38
100%
[Accurate MAGPRO]*
<<locked>>
97%
47993
75%
**72
94%
Alliant Reloder- TS 15.5
<<locked>>
86%
56826
89%
**76
100%
Alliant Reloder-15
<<locked>>
84%
56869
89%
**02
100%
Alliant Reloder-16
<<locked>>
93%
56811
89%
**77
100%
Alliant Reloder-17
<<locked>>
89%
56782
89%
**77
100%
Alliant Reloder-19
<<locked>>
97%
55651
87%
**44
99%
Alliant Reloder-22
<<locked>>
97%
48994
77%
**89
98%
Alliant Reloder-23
<<locked>>
97%
46789
73%
**30
100%
Alliant Reloder-25
<<locked>>
97%
40843
64%
**51
99%
Alliant Reloder-26 👍
<<locked>>
97%
53200
83%
**17
100%
Hodgdon CFE223
<<locked>>
84%
57334
90%
**44
100%
Hodgdon H380
<<locked>>
85%
57174
90%
**02
100%
Hodgdon H414
<<locked>>
88%
57363
90%
**61
100%
Hodgdon H4350 👍
<<locked>>
95%
57290
90%
**08
99%
Hodgdon H4831
<<locked>>
97%
46224
72%
**67
95%
Hodgdon H4831 SC
<<locked>>
97%
52417
82%
**69
96%
Hodgdon Hybrid 100V
<<locked>>
95%
57014
89%
**95
100%
Hodgdon LVR
<<locked>>
90%
56840
89%
**35
100%
[Hodgdon Retumbo]*
<<locked>>
97%
32227
51%
**41
93%
Hodgdon Superperformance 👍
<<locked>>
90%
57000
89%
**87
99%
Hodgdon VARGET
<<locked>>
87%
57072
89%
**76
100%
Hodgdon TrailBoss
<<locked>>
96%
34548
54%
**83
100%
IMR 4064
<<locked>>
87%
56681
89%
**56
100%
IMR 4166 Enduron
<<locked>>
88%
57145
90%
**66
100%
IMR 4350
<<locked>>
93%
57348
90%
**08
99%
IMR 4451 Enduron
<<locked>>
89%
56739
89%
**85
100%
IMR 4831
<<locked>>
97%
56362
88%
**08
100%
IMR 4955 Enduron
<<locked>>
97%
52040
82%
**26
96%
IMR 7828 SSC
<<locked>>
97%
51692
81%
**25
97%
Lovex S062
<<locked>>
85%
57261
90%
**49
100%
Lovex S065
<<locked>>
91%
56811
89%
**79
100%
Lovex S070
<<locked>>
92%
57029
89%
**02
100%
Lovex S071
<<locked>>
97%
40959
64%
**59
98%
Norma 203B
<<locked>>
84%
56840
89%
**95
100%
Norma 204
<<locked>>
93%
57435
90%
**51
99%
Norma MRP
<<locked>>
97%
52417
82%
**74
99%
Norma URP
<<locked>>
92%
56652
89%
**31
100%
Ramshot Big Game
<<locked>>
84%
57334
90%
**18
100%
Ramshot Hunter 👍
<<locked>>
93%
57116
90%
**58
100%
Ramshot Magnum
<<locked>>
97%
47558
75%
**40
98%
ReloadSwiss RS 14
<<locked>>
97%
35592
56%
**29
100%
ReloadSwiss RS 50
<<locked>>
85%
57130
90%
**85
100%
ReloadSwiss RS 52
<<locked>>
84%
56782
89%
**99
100%
ReloadSwiss RS 60
<<locked>>
90%
57392
90%
**10
100%
ReloadSwiss RS 62
<<locked>>
92%
57203
90%
**64
100%
ReloadSwiss RS 70 👍
<<locked>>
93%
56840
89%
**10
100%
ReloadSwiss RS 76
<<locked>>
97%
39088
61%
**54
96%
Rottweil R 902
<<locked>>
84%
57276
90%
**36
100%
Rottweil R 903
<<locked>>
87%
57029
89%
**85
100%
Rottweil R 904
<<locked>>
96%
57072
89%
**18
98%
Rottweil R 905
<<locked>>
97%
54984
86%
**31
99%
Rottweil R 907
<<locked>>
90%
57174
90%
**82
99%
SNPE Vectan SP 11
<<locked>>
87%
57392
90%
**28
100%
SNPE Vectan Tubal 5000
<<locked>>
87%
56884
89%
**51
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
57174
90%
**46
100%
Shooters World Long Rifle
<<locked>>
91%
56811
89%
**79
100%
Shooters World Precision
<<locked>>
85%
57261
90%
**49
100%
Somchem S355
<<locked>>
87%
56855
89%
**72
100%
Somchem S361
<<locked>>
96%
57421
90%
**89
97%
Somchem S365
<<locked>>
95%
57406
90%
**58
100%
Somchem S385
<<locked>>
97%
54882
86%
**02
99%
Vihtavuori N133
<<locked>>
83%
57029
89%
**38
100%
Vihtavuori N135
<<locked>>
89%
57203
90%
**90
100%
Vihtavuori N140
<<locked>>
84%
57348
90%
**07
100%
Vihtavuori N150
<<locked>>
92%
57058
89%
**33
100%
Vihtavuori N160
<<locked>>
90%
57406
90%
**08
100%
Vihtavuori N165
<<locked>>
97%
45905
72%
**44
97%
Vihtavuori N540
<<locked>>
84%
57319
90%
**40
100%
Vihtavuori N550
<<locked>>
90%
56956
89%
**35
100%
Vihtavuori N555
<<locked>>
97%
52344
82%
**02
100%
Vihtavuori N560
<<locked>>
97%
49588
78%
**08
96%
[Vihtavuori N565]*
<<locked>>
97%
41626
65%
**48
94%
Winchester 6.5 StaBALL
<<locked>>
91%
56985
89%
**72
100%
Winchester 760
<<locked>>
88%
57363
90%
**61
100%
Winchester StaBALL HD
<<locked>>
97%
40886
64%
**69
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
48283
76%
**38
100%
[ADI AR 2209]*
<<locked>>
81%
33272
52%
**98
92%
[ADI AR 2213]*
<<locked>>
86%
34925
55%
**61
90%
[ADI AR 2225]*
<<locked>>
94%
29182
46%
**43
90%
Accurate 2700
<<locked>>
81%
46456
73%
**69
98%
[Accurate 3100]*
<<locked>>
81%
28587
45%
**77
93%
Accurate 4064
<<locked>>
81%
51126
80%
**57
100%
Accurate 4350
<<locked>>
81%
39160
61%
**39
99%
[Accurate MAGPRO]*
<<locked>>
91%
38711
61%
**82
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
48805
76%
**61
100%
Alliant Reloder-15
<<locked>>
81%
52330
82%
**33
100%
Alliant Reloder-16
<<locked>>
81%
38189
60%
**49
99%
Alliant Reloder-17
<<locked>>
81%
43294
68%
**71
100%
[Alliant Reloder-19]*
<<locked>>
81%
33286
52%
**02
92%
[Alliant Reloder-22]*
<<locked>>
82%
30008
47%
**59
90%
Alliant Reloder-23
<<locked>>
81%
27833
44%
**03
97%
[Alliant Reloder-25]*
<<locked>>
82%
25034
39%
**15
90%
Alliant Reloder-26
<<locked>>
81%
29646
46%
**15
95%
Hodgdon CFE223
<<locked>>
81%
51735
81%
**59
100%
Hodgdon H380
<<locked>>
81%
49559
78%
**87
100%
Hodgdon H414
<<locked>>
81%
44773
70%
**54
98%
Hodgdon H4350
<<locked>>
81%
36956
58%
**44
95%
[Hodgdon H4831]*
<<locked>>
88%
35172
55%
**28
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
35288
55%
**28
90%
Hodgdon Hybrid 100V
<<locked>>
81%
35694
56%
**48
99%
Hodgdon LVR
<<locked>>
81%
42047
66%
**92
99%
[Hodgdon Retumbo]*
<<locked>>
94%
29182
46%
**43
90%
Hodgdon Superperformance
<<locked>>
81%
40118
63%
**92
96%
Hodgdon VARGET
<<locked>>
81%
48022
75%
**35
100%
Hodgdon TrailBoss
<<locked>>
92%
32547
51%
**40
100%
IMR 4064
<<locked>>
81%
47703
75%
**21
100%
IMR 4166 Enduron
<<locked>>
81%
46456
73%
**85
98%
IMR 4350
<<locked>>
81%
38725
61%
**77
96%
IMR 4451 Enduron
<<locked>>
81%
44701
70%
**79
98%
IMR 4831
<<locked>>
81%
34011
53%
**08
98%
[IMR 4955 Enduron]*
<<locked>>
84%
34360
54%
**75
90%
[IMR 7828 SSC]*
<<locked>>
85%
34809
55%
**70
90%
Lovex S062
<<locked>>
81%
50879
80%
**67
100%
Lovex S065
<<locked>>
81%
42148
66%
**33
98%
Lovex S070
<<locked>>
81%
40379
63%
**20
97%
[Lovex S071]*
<<locked>>
81%
24424
38%
**49
90%
Norma 203B
<<locked>>
81%
51808
81%
**20
100%
[Norma 204]*
<<locked>>
81%
38189
60%
**00
94%
[Norma MRP]*
<<locked>>
81%
30066
47%
**88
92%
Norma URP
<<locked>>
81%
39030
61%
**36
99%
Ramshot Big Game
<<locked>>
81%
52301
82%
**40
100%
Ramshot Hunter
<<locked>>
81%
37826
59%
**23
97%
[Ramshot Magnum]*
<<locked>>
84%
29153
46%
**20
90%
ReloadSwiss RS 14
<<locked>>
88%
31560
49%
**50
100%
ReloadSwiss RS 50
<<locked>>
81%
49893
78%
**77
99%
ReloadSwiss RS 52
<<locked>>
81%
51605
81%
**30
100%
ReloadSwiss RS 60
<<locked>>
81%
41930
66%
**61
100%
ReloadSwiss RS 62
<<locked>>
81%
38943
61%
**56
99%
ReloadSwiss RS 70
<<locked>>
81%
37811
59%
**69
98%
[ReloadSwiss RS 76]*
<<locked>>
89%
29660
46%
**85
90%
Rottweil R 902
<<locked>>
81%
52823
83%
**77
100%
Rottweil R 903
<<locked>>
81%
46441
73%
**21
100%
[Rottweil R 904]*
<<locked>>
81%
34592
54%
**88
91%
[Rottweil R 905]*
<<locked>>
81%
32068
50%
**79
92%
Rottweil R 907
<<locked>>
81%
43294
68%
**49
97%
SNPE Vectan SP 11
<<locked>>
81%
47718
75%
**77
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
47688
75%
**30
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41147
64%
**80
97%
Shooters World Long Rifle
<<locked>>
81%
42148
66%
**33
98%
Shooters World Precision
<<locked>>
81%
50879
80%
**67
100%
Somchem S355
<<locked>>
81%
46673
73%
**25
100%
[Somchem S361]*
<<locked>>
81%
35186
55%
**79
90%
Somchem S365
<<locked>>
81%
35244
55%
**90
100%
[Somchem S385]*
<<locked>>
81%
32503
51%
**65
93%
Vihtavuori N133
<<locked>>
81%
53214
83%
**89
100%
Vihtavuori N135
<<locked>>
81%
45571
71%
**33
100%
Vihtavuori N140
<<locked>>
81%
52794
83%
**44
100%
Vihtavuori N150
<<locked>>
81%
39958
63%
**70
100%
Vihtavuori N160
<<locked>>
81%
42192
66%
**59
99%
[Vihtavuori N165]*
<<locked>>
82%
28384
44%
**47
90%
Vihtavuori N540
<<locked>>
81%
52243
82%
**71
100%
Vihtavuori N550
<<locked>>
81%
42554
67%
**98
99%
Vihtavuori N555
<<locked>>
81%
30748
48%
**82
97%
[Vihtavuori N560]*
<<locked>>
86%
34795
55%
**93
90%
[Vihtavuori N565]*
<<locked>>
91%
33446
52%
**64
90%
Winchester 6.5 StaBALL
<<locked>>
81%
39624
62%
**03
100%
Winchester 760
<<locked>>
81%
44773
70%
**54
98%
Winchester StaBALL HD
<<locked>>
81%
24366
38%
**74
96%

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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