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Load data for 8.5 mm Messner Magnum + .338 | 225gr | Woodleigh HS

Recommended Powder(s): Alliant Reloder-26, Norma 204, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

8.5 mm Messner Magnum + .338 | 225gr | Woodleigh HS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Woodleigh HS
Manufacturer SKU:
H338
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
8.5 mm Messner Magnum load data
Case Length (l3):
2.508" | 63.7mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B12048_C1203
Last updated:
2026-01-20

Load data for 162 loads in caliber 8.5 mm Messner Magnum with .338 | 225gr | Woodleigh HS bullet and 81 powders such as Alliant Reloder-26, Norma 204, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD. 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>>
85%
56985
89%
**79
100%
ADI AR 2209
<<locked>>
95%
57421
90%
**87
99%
ADI AR 2213
<<locked>>
97%
54186
85%
**71
98%
[ADI AR 2217]*
<<locked>>
97%
39146
61%
**69
93%
ADI AR 2225
<<locked>>
97%
34998
55%
**30
95%
Accurate 2700
<<locked>>
86%
57246
90%
**59
99%
Accurate 3100
<<locked>>
97%
53330
84%
**79
100%
Accurate 4350
<<locked>>
90%
57406
90%
**48
100%
Accurate MAGPRO
<<locked>>
97%
52707
83%
**71
96%
Alliant Reloder- TS 15.5
<<locked>>
84%
57363
90%
**99
100%
Alliant Reloder-16
<<locked>>
91%
57072
89%
**90
100%
Alliant Reloder-17
<<locked>>
87%
57101
89%
**90
100%
Alliant Reloder-19
<<locked>>
96%
57377
90%
**84
99%
Alliant Reloder-22
<<locked>>
97%
53432
84%
**61
99%
Alliant Reloder-23
<<locked>>
97%
50676
79%
**95
100%
Alliant Reloder-25
<<locked>>
97%
43859
69%
**26
99%
Alliant Reloder-26 👍
<<locked>>
96%
57087
89%
**72
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
52939
83%
**69
94%
Bofors RP15
<<locked>>
97%
48602
76%
**82
98%
Bofors RP3
<<locked>>
83%
57000
89%
**89
100%
[Bofors RP30]*
<<locked>>
97%
40016
63%
**44
94%
Bofors RP5
<<locked>>
97%
53432
84%
**61
99%
Bofors RP7
<<locked>>
88%
57174
90%
**99
99%
[Hodgdon H1000]*
<<locked>>
97%
39146
61%
**69
93%
Hodgdon H380
<<locked>>
83%
57043
89%
**15
100%
Hodgdon H414
<<locked>>
86%
57290
90%
**74
100%
Hodgdon H4350
<<locked>>
93%
57246
90%
**18
99%
Hodgdon H4831
<<locked>>
97%
50038
78%
**43
96%
Hodgdon H4831 SC
<<locked>>
97%
56739
89%
**51
97%
Hodgdon Hybrid 100V
<<locked>>
93%
57188
90%
**08
100%
Hodgdon LVR
<<locked>>
88%
56985
89%
**44
100%
Hodgdon Retumbo
<<locked>>
97%
34998
55%
**30
95%
Hodgdon Superperformance
<<locked>>
88%
57014
89%
**00
100%
Hodgdon VARGET
<<locked>>
85%
57261
90%
**89
100%
Hodgdon TrailBoss
<<locked>>
96%
34983
55%
**09
100%
IMR 4064
<<locked>>
85%
56869
89%
**76
100%
IMR 4166 Enduron
<<locked>>
86%
57232
90%
**79
100%
IMR 4350
<<locked>>
91%
57319
90%
**18
100%
IMR 4451 Enduron
<<locked>>
87%
57421
90%
**05
100%
IMR 4831
<<locked>>
95%
57000
89%
**31
100%
IMR 4955 Enduron
<<locked>>
97%
55274
87%
**99
97%
IMR 7828 SSC
<<locked>>
97%
55288
87%
**97
98%
Lovex S065
<<locked>>
89%
56971
89%
**92
100%
Lovex S070
<<locked>>
90%
57159
90%
**22
100%
Lovex S071
<<locked>>
97%
44918
70%
**38
99%
Norma 204 👍
<<locked>>
91%
57406
90%
**61
99%
[Norma 217]*
<<locked>>
97%
30690
48%
**44
92%
Norma MRP
<<locked>>
97%
56507
89%
**36
100%
Norma URP
<<locked>>
90%
56855
89%
**51
100%
Ramshot Grand
<<locked>>
96%
57174
90%
**46
99%
Ramshot Hunter 👍
<<locked>>
91%
57101
89%
**74
100%
Ramshot Magnum
<<locked>>
97%
51648
81%
**25
99%
ReloadSwiss RS 14
<<locked>>
97%
36027
56%
**55
100%
ReloadSwiss RS 50
<<locked>>
83%
56768
89%
**99
100%
ReloadSwiss RS 60
<<locked>>
85%
57116
90%
**87
100%
ReloadSwiss RS 62
<<locked>>
90%
57043
89%
**74
100%
ReloadSwiss RS 70
<<locked>>
91%
57406
90%
**27
100%
ReloadSwiss RS 76
<<locked>>
97%
42873
67%
**53
98%
Rottweil R 903
<<locked>>
85%
56942
89%
**89
100%
Rottweil R 904
<<locked>>
95%
57203
90%
**28
98%
Rottweil R 905
<<locked>>
96%
56681
89%
**71
99%
Rottweil R 907
<<locked>>
88%
57174
90%
**99
99%
SNPE Vectan SP 11
<<locked>>
85%
57334
90%
**31
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56956
89%
**64
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
56724
89%
**53
100%
Shooters World Long Rifle
<<locked>>
89%
56971
89%
**92
100%
Somchem S355
<<locked>>
86%
57363
90%
**92
100%
Somchem S361
<<locked>>
94%
57363
90%
**99
97%
Somchem S365
<<locked>>
93%
57014
89%
**58
100%
Somchem S385
<<locked>>
96%
56956
89%
**41
99%
Vihtavuori N135
<<locked>>
87%
57246
90%
**97
100%
Vihtavuori N150
<<locked>>
90%
56913
89%
**46
100%
Vihtavuori N160
<<locked>>
88%
57334
90%
**18
100%
Vihtavuori N165
<<locked>>
97%
49284
77%
**10
98%
Vihtavuori N550
<<locked>>
88%
56782
89%
**51
100%
Vihtavuori N555 👍
<<locked>>
97%
56521
89%
**67
100%
Vihtavuori N560
<<locked>>
97%
53447
84%
**84
97%
Vihtavuori N565
<<locked>>
97%
45484
71%
**23
95%
Winchester 6.5 StaBALL
<<locked>>
90%
57130
90%
**82
100%
Winchester 760
<<locked>>
86%
57290
90%
**74
100%
Winchester StaBALL HD 👍
<<locked>>
97%
46485
73%
**64
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51097
80%
**94
100%
[ADI AR 2209]*
<<locked>>
81%
35708
56%
**74
93%
[ADI AR 2213]*
<<locked>>
83%
33663
53%
**34
90%
[ADI AR 2217]*
<<locked>>
92%
34214
54%
**44
90%
[ADI AR 2225]*
<<locked>>
90%
28079
44%
**16
90%
Accurate 2700
<<locked>>
81%
49168
77%
**35
98%
Accurate 3100
<<locked>>
81%
31270
49%
**46
95%
Accurate 4350
<<locked>>
81%
42395
66%
**12
100%
[Accurate MAGPRO]*
<<locked>>
87%
37492
59%
**66
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51880
81%
**17
100%
Alliant Reloder-16
<<locked>>
81%
40973
64%
**21
100%
Alliant Reloder-17
<<locked>>
81%
46876
73%
**33
100%
[Alliant Reloder-19]*
<<locked>>
81%
35563
56%
**70
94%
[Alliant Reloder-22]*
<<locked>>
81%
31444
49%
**02
91%
Alliant Reloder-23
<<locked>>
81%
30139
47%
**79
98%
[Alliant Reloder-25]*
<<locked>>
81%
26426
41%
**74
92%
Alliant Reloder-26
<<locked>>
81%
32314
51%
**97
97%
[Baschieri & Pellagri 109]*
<<locked>>
90%
42380
66%
**69
90%
[Bofors RP15]*
<<locked>>
81%
29631
46%
**52
90%
Bofors RP3
<<locked>>
81%
52692
83%
**33
100%
[Bofors RP30]*
<<locked>>
90%
31546
49%
**34
90%
[Bofors RP5]*
<<locked>>
81%
31444
49%
**02
91%
Bofors RP7
<<locked>>
81%
46021
72%
**15
98%
[Hodgdon H1000]*
<<locked>>
92%
34214
54%
**44
90%
Hodgdon H380
<<locked>>
81%
52852
83%
**49
100%
Hodgdon H414
<<locked>>
81%
48138
75%
**26
99%
Hodgdon H4350
<<locked>>
81%
39465
62%
**03
96%
[Hodgdon H4831]*
<<locked>>
85%
34389
54%
**18
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
34389
54%
**18
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38595
60%
**10
100%
Hodgdon LVR
<<locked>>
81%
45121
71%
**57
99%
[Hodgdon Retumbo]*
<<locked>>
90%
28079
44%
**16
90%
Hodgdon Superperformance
<<locked>>
81%
43250
68%
**71
98%
Hodgdon VARGET
<<locked>>
81%
50734
79%
**90
100%
Hodgdon TrailBoss
<<locked>>
89%
31647
50%
**44
100%
IMR 4064
<<locked>>
81%
50256
79%
**71
100%
IMR 4166 Enduron
<<locked>>
81%
49168
77%
**48
99%
IMR 4350
<<locked>>
81%
41205
65%
**39
97%
IMR 4451 Enduron
<<locked>>
81%
47311
74%
**44
99%
IMR 4831
<<locked>>
81%
36825
58%
**77
99%
[IMR 4955 Enduron]*
<<locked>>
81%
33881
53%
**72
90%
[IMR 7828 SSC]*
<<locked>>
82%
33228
52%
**41
90%
Lovex S065
<<locked>>
81%
44889
70%
**98
99%
Lovex S070
<<locked>>
81%
43033
67%
**82
98%
[Lovex S071]*
<<locked>>
81%
26818
42%
**28
93%
Norma 204
<<locked>>
81%
40915
64%
**72
95%
[Norma 217]*
<<locked>>
94%
28456
45%
**75
90%
[Norma MRP]*
<<locked>>
81%
32474
51%
**64
94%
Norma URP
<<locked>>
81%
41974
66%
**95
99%
[Ramshot Grand]*
<<locked>>
81%
33228
52%
**54
90%
Ramshot Hunter
<<locked>>
81%
40654
64%
**92
98%
[Ramshot Magnum]*
<<locked>>
81%
28863
45%
**20
90%
ReloadSwiss RS 14
<<locked>>
85%
30385
48%
**40
100%
ReloadSwiss RS 50
<<locked>>
81%
52866
83%
**33
100%
ReloadSwiss RS 60
<<locked>>
81%
49603
78%
**85
100%
ReloadSwiss RS 62
<<locked>>
81%
42163
66%
**28
99%
ReloadSwiss RS 70
<<locked>>
81%
40698
64%
**35
99%
[ReloadSwiss RS 76]*
<<locked>>
85%
28877
45%
**72
90%
Rottweil R 903
<<locked>>
81%
49588
78%
**80
100%
[Rottweil R 904]*
<<locked>>
81%
36985
58%
**61
93%
[Rottweil R 905]*
<<locked>>
81%
34635
54%
**54
93%
Rottweil R 907
<<locked>>
81%
46021
72%
**15
98%
SNPE Vectan SP 11
<<locked>>
81%
50908
80%
**36
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50241
79%
**72
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43932
69%
**39
98%
Shooters World Long Rifle
<<locked>>
81%
44889
70%
**98
99%
Somchem S355
<<locked>>
81%
49705
78%
**84
100%
[Somchem S361]*
<<locked>>
81%
37811
59%
**54
92%
Somchem S365
<<locked>>
81%
38290
60%
**49
100%
Somchem S385
<<locked>>
81%
35375
55%
**41
95%
Vihtavuori N135
<<locked>>
81%
48370
76%
**79
100%
Vihtavuori N150
<<locked>>
81%
42583
67%
**26
100%
Vihtavuori N160
<<locked>>
81%
45252
71%
**25
100%
[Vihtavuori N165]*
<<locked>>
81%
29718
47%
**93
91%
Vihtavuori N550
<<locked>>
81%
45629
71%
**67
100%
Vihtavuori N555
<<locked>>
81%
33576
53%
**57
98%
[Vihtavuori N560]*
<<locked>>
83%
33997
53%
**77
90%
[Vihtavuori N565]*
<<locked>>
87%
32880
52%
**48
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42395
66%
**62
100%
Winchester 760
<<locked>>
81%
48138
75%
**26
99%
Winchester StaBALL HD
<<locked>>
81%
24236
38%
**65
98%

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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