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Load data for 8.5 mm Messner Magnum + .338 | 185gr Hornady CX

Recommended Powder(s):

8.5 mm Messner Magnum + .338 | 185gr Hornady CX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 185gr Hornady CX
Manufacturer SKU:
332704
Bullet Weight:
185gr | 12.0g
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_B1375_C1203
Last updated:
2026-03-18
Recommended Twist Rate:
1:13 - 1:11

Load data for 204 loads in caliber 8.5 mm Messner Magnum with .338 | 185gr Hornady CX bullet and 102 powder(s). 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>>
85%
57377
90%
**71
100%
ADI AR 2208
<<locked>>
90%
57363
90%
**51
100%
ADI AR 2209
<<locked>>
97%
49211
77%
**89
95%
ADI Benchmark 8208
<<locked>>
83%
57232
90%
**31
100%
Accurate 2200
<<locked>>
83%
57246
90%
**41
100%
Accurate 2495
<<locked>>
83%
57334
90%
**05
100%
Accurate 2700
<<locked>>
90%
56826
89%
**86
98%
Accurate 3100
<<locked>>
97%
41539
65%
**08
96%
Accurate 4064
<<locked>>
89%
57217
90%
**25
100%
Accurate 4350 👍
<<locked>>
96%
57421
90%
**20
100%
Alliant Power Pro 2000-MR
<<locked>>
86%
56869
89%
**82
100%
Alliant Reloder- TS 15.5
<<locked>>
90%
57276
90%
**71
100%
Alliant Reloder-15
<<locked>>
88%
57319
90%
**87
100%
Alliant Reloder-16 👍
<<locked>>
97%
55593
87%
**40
100%
Alliant Reloder-17 👍
<<locked>>
93%
56782
89%
**66
100%
Alliant Reloder-19
<<locked>>
97%
48196
76%
**69
95%
[Alliant Reloder-22]*
<<locked>>
97%
42351
66%
**90
93%
Alliant Reloder-23
<<locked>>
97%
39697
62%
**48
99%
[Alliant Reloder-25]*
<<locked>>
97%
34983
55%
**26
94%
Alliant Reloder-26
<<locked>>
97%
45005
71%
**28
99%
Baschieri & Pellagri 107
<<locked>>
85%
57348
90%
**84
100%
Bofors RP3
<<locked>>
89%
56927
89%
**61
100%
[Bofors RP5]*
<<locked>>
97%
42351
66%
**90
93%
Bofors RP7
<<locked>>
93%
57188
90%
**45
98%
Hodgdon CFE223
<<locked>>
87%
56637
89%
**00
100%
Hodgdon H380
<<locked>>
89%
57246
90%
**74
100%
Hodgdon H414
<<locked>>
92%
57174
90%
**27
99%
Hodgdon H4350
<<locked>>
97%
53374
84%
**05
97%
[Hodgdon H4831 SC]*
<<locked>>
97%
46267
72%
**90
92%
Hodgdon H4895
<<locked>>
84%
57392
90%
**61
100%
Hodgdon Hybrid 100V
<<locked>>
97%
52199
82%
**05
100%
Hodgdon LVR
<<locked>>
94%
57116
90%
**07
100%
Hodgdon Superperformance
<<locked>>
94%
56985
89%
**59
98%
Hodgdon VARGET
<<locked>>
90%
57363
90%
**51
100%
Hodgdon TrailBoss
<<locked>>
96%
34171
54%
**60
100%
IMR 3031
<<locked>>
87%
57130
90%
**38
100%
IMR 4064
<<locked>>
91%
57101
89%
**41
100%
IMR 4166 Enduron
<<locked>>
91%
57276
90%
**31
98%
IMR 4350
<<locked>>
97%
56826
89%
**54
98%
IMR 4451 Enduron
<<locked>>
92%
57014
89%
**45
98%
IMR 4831
<<locked>>
97%
48747
76%
**59
99%
IMR 4895
<<locked>>
87%
57392
90%
**91
100%
[IMR 4955 Enduron]*
<<locked>>
97%
45934
72%
**58
92%
[IMR 7828 SSC]*
<<locked>>
97%
45150
71%
**30
92%
IMR 8208 XBR
<<locked>>
83%
57232
90%
**31
100%
Lovex D073.6
<<locked>>
84%
56913
89%
**25
100%
Lovex S060
<<locked>>
85%
56913
89%
**92
100%
Lovex S062
<<locked>>
88%
56971
89%
**28
100%
Lovex S065
<<locked>>
95%
56898
89%
**48
99%
Lovex S070
<<locked>>
96%
56811
89%
**64
99%
[Lovex S071]*
<<locked>>
97%
34621
54%
**48
93%
Norma 201
<<locked>>
86%
57305
90%
**28
100%
Norma 202
<<locked>>
85%
56956
89%
**09
100%
Norma 203B
<<locked>>
88%
57087
89%
**71
100%
Norma 204
<<locked>>
96%
56739
89%
**97
97%
Norma MRP
<<locked>>
97%
44686
70%
**82
96%
Norma URP 👍
<<locked>>
97%
57203
90%
**14
100%
Ramshot Big Game
<<locked>>
87%
56942
89%
**91
100%
[Ramshot Grand]*
<<locked>>
97%
47703
75%
**89
93%
Ramshot Hunter
<<locked>>
97%
56405
88%
**23
99%
[Ramshot Magnum]*
<<locked>>
97%
40669
64%
**18
93%
Ramshot Wild Boar
<<locked>>
83%
57290
90%
**64
100%
ReloadSwiss RS 14
<<locked>>
96%
34534
54%
**00
100%
ReloadSwiss RS 50
<<locked>>
89%
56927
89%
**54
99%
ReloadSwiss RS 52
<<locked>>
85%
56753
89%
**33
100%
ReloadSwiss RS 60
<<locked>>
91%
57014
89%
**69
100%
ReloadSwiss RS 62
<<locked>>
96%
56913
89%
**36
100%
ReloadSwiss RS 70
<<locked>>
97%
57392
90%
**89
100%
Rottweil R 901
<<locked>>
83%
57043
89%
**95
100%
Rottweil R 902
<<locked>>
87%
57130
90%
**15
100%
Rottweil R 903
<<locked>>
91%
56681
89%
**54
100%
[Rottweil R 904]*
<<locked>>
97%
51300
80%
**66
94%
Rottweil R 905
<<locked>>
97%
47268
74%
**59
95%
Rottweil R 907
<<locked>>
93%
57188
90%
**45
98%
SNPE Vectan SP 11
<<locked>>
90%
57145
90%
**00
100%
SNPE Vectan SP 7
<<locked>>
84%
57305
90%
**45
100%
SNPE Vectan SP 9
<<locked>>
85%
57246
90%
**58
100%
SNPE Vectan Tubal 3000
<<locked>>
85%
57014
89%
**36
100%
SNPE Vectan Tubal 5000
<<locked>>
90%
56898
89%
**23
100%
SNPE Vectan Tubal 7000
<<locked>>
95%
56942
89%
**99
98%
Shooters World Long Rifle
<<locked>>
95%
56898
89%
**48
99%
Shooters World Match Rifle
<<locked>>
84%
56913
89%
**25
100%
Shooters World Precision
<<locked>>
88%
56971
89%
**28
100%
Somchem S335
<<locked>>
85%
57348
90%
**49
100%
Somchem S341
<<locked>>
84%
56985
89%
**35
100%
Somchem S355
<<locked>>
91%
57203
90%
**61
100%
[Somchem S361]*
<<locked>>
97%
52779
83%
**59
94%
Somchem S365
<<locked>>
97%
52069
82%
**64
100%
Somchem S385
<<locked>>
97%
47935
75%
**36
96%
Vihtavuori N133
<<locked>>
87%
56840
89%
**13
100%
Vihtavuori N135
<<locked>>
93%
56913
89%
**69
100%
Vihtavuori N140
<<locked>>
87%
56884
89%
**76
100%
Vihtavuori N150
<<locked>>
97%
57261
90%
**12
100%
Vihtavuori N160
<<locked>>
94%
57217
90%
**77
100%
[Vihtavuori N165]*
<<locked>>
97%
39827
62%
**53
93%
Vihtavuori N540
<<locked>>
87%
56826
89%
**12
100%
Vihtavuori N550 👍
<<locked>>
94%
56927
89%
**17
100%
Vihtavuori N555
<<locked>>
97%
44541
70%
**36
99%
Winchester 6.5 StaBALL
<<locked>>
95%
57159
90%
**51
100%
Winchester 760
<<locked>>
92%
57174
90%
**27
99%
Winchester StaBALL HD
<<locked>>
97%
35766
56%
**51
99%
Winchester Supreme 780
<<locked>>
97%
49951
78%
**56
95%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
50691
79%
**53
100%
ADI AR 2208
<<locked>>
81%
43163
68%
**99
99%
[ADI AR 2209]*
<<locked>>
88%
36767
58%
**07
90%
ADI Benchmark 8208
<<locked>>
81%
52837
83%
**63
100%
Accurate 2200
<<locked>>
81%
52881
83%
**69
99%
Accurate 2495
<<locked>>
81%
52591
82%
**43
100%
[Accurate 2700]*
<<locked>>
81%
41394
65%
**07
94%
[Accurate 3100]*
<<locked>>
86%
28645
45%
**90
90%
Accurate 4064
<<locked>>
81%
44425
70%
**22
100%
Accurate 4350
<<locked>>
81%
33025
52%
**31
95%
Alliant Power Pro 2000-MR
<<locked>>
81%
47181
74%
**15
99%
Alliant Reloder- TS 15.5
<<locked>>
81%
43062
67%
**18
100%
Alliant Reloder-15
<<locked>>
81%
45992
72%
**84
99%
Alliant Reloder-16
<<locked>>
81%
33214
52%
**51
95%
Alliant Reloder-17
<<locked>>
81%
37521
59%
**99
98%
[Alliant Reloder-19]*
<<locked>>
88%
36187
57%
**97
90%
[Alliant Reloder-22]*
<<locked>>
92%
36013
56%
**36
90%
[Alliant Reloder-23]*
<<locked>>
81%
23830
37%
**65
91%
[Alliant Reloder-25]*
<<locked>>
92%
29515
46%
**59
90%
[Alliant Reloder-26]*
<<locked>>
84%
28007
44%
**52
90%
Baschieri & Pellagri 107
<<locked>>
81%
50546
79%
**63
99%
Bofors RP3
<<locked>>
81%
42859
67%
**18
100%
[Bofors RP5]*
<<locked>>
92%
36013
56%
**36
90%
[Bofors RP7]*
<<locked>>
81%
38247
60%
**80
93%
Hodgdon CFE223
<<locked>>
81%
44962
70%
**00
99%
Hodgdon H380
<<locked>>
81%
43772
69%
**31
98%
[Hodgdon H414]*
<<locked>>
81%
38885
61%
**72
94%
[Hodgdon H4350]*
<<locked>>
81%
32619
51%
**52
90%
[Hodgdon H4831 SC]*
<<locked>>
94%
42424
66%
**12
90%
Hodgdon H4895
<<locked>>
81%
51213
80%
**69
100%
Hodgdon Hybrid 100V
<<locked>>
81%
30530
48%
**49
96%
Hodgdon LVR
<<locked>>
81%
36303
57%
**03
95%
[Hodgdon Superperformance]*
<<locked>>
81%
34969
55%
**87
91%
Hodgdon VARGET
<<locked>>
81%
42699
67%
**85
98%
Hodgdon TrailBoss
<<locked>>
81%
27064
42%
**03
100%
IMR 3031
<<locked>>
81%
47152
74%
**87
100%
IMR 4064
<<locked>>
81%
42235
66%
**72
99%
IMR 4166 Enduron
<<locked>>
81%
41843
66%
**36
95%
[IMR 4350]*
<<locked>>
81%
34026
53%
**95
91%
[IMR 4451 Enduron]*
<<locked>>
81%
39871
62%
**23
94%
[IMR 4831]*
<<locked>>
81%
29037
46%
**07
93%
IMR 4895
<<locked>>
81%
47239
74%
**23
100%
[IMR 4955 Enduron]*
<<locked>>
93%
41118
64%
**46
90%
[IMR 7828 SSC]*
<<locked>>
95%
41611
65%
**51
90%
IMR 8208 XBR
<<locked>>
81%
52837
83%
**63
100%
Lovex D073.6
<<locked>>
81%
50676
79%
**36
100%
Lovex S060
<<locked>>
81%
50401
79%
**87
100%
Lovex S062
<<locked>>
81%
45266
71%
**38
100%
Lovex S065
<<locked>>
81%
36985
58%
**57
95%
[Lovex S070]*
<<locked>>
81%
35143
55%
**28
93%
[Lovex S071]*
<<locked>>
91%
28413
45%
**87
90%
Norma 201
<<locked>>
81%
49429
77%
**00
100%
Norma 202
<<locked>>
81%
50140
79%
**07
100%
Norma 203B
<<locked>>
81%
45484
71%
**74
99%
[Norma 204]*
<<locked>>
83%
36318
57%
**84
90%
[Norma MRP]*
<<locked>>
88%
32576
51%
**71
90%
Norma URP
<<locked>>
81%
33431
52%
**41
95%
Ramshot Big Game
<<locked>>
81%
45687
72%
**94
99%
[Ramshot Grand]*
<<locked>>
93%
40625
64%
**38
90%
[Ramshot Hunter]*
<<locked>>
81%
32764
51%
**28
92%
[Ramshot Magnum]*
<<locked>>
93%
35215
55%
**87
90%
Ramshot Wild Boar
<<locked>>
81%
52895
83%
**95
100%
ReloadSwiss RS 14
<<locked>>
81%
27470
43%
**42
100%
ReloadSwiss RS 50
<<locked>>
81%
43990
69%
**15
96%
ReloadSwiss RS 52
<<locked>>
81%
49719
78%
**18
100%
ReloadSwiss RS 60
<<locked>>
81%
39929
63%
**67
100%
[ReloadSwiss RS 62]*
<<locked>>
81%
33040
52%
**51
94%
[ReloadSwiss RS 70]*
<<locked>>
81%
32837
51%
**54
93%
Rottweil R 901
<<locked>>
81%
53417
84%
**36
100%
Rottweil R 902
<<locked>>
81%
47036
74%
**51
100%
Rottweil R 903
<<locked>>
81%
40190
63%
**66
99%
[Rottweil R 904]*
<<locked>>
89%
39146
61%
**23
90%
[Rottweil R 905]*
<<locked>>
88%
34969
55%
**80
90%
[Rottweil R 907]*
<<locked>>
81%
38247
60%
**80
93%
SNPE Vectan SP 11
<<locked>>
81%
41785
65%
**22
99%
SNPE Vectan SP 7
<<locked>>
81%
51648
81%
**56
99%
SNPE Vectan SP 9
<<locked>>
81%
49400
77%
**27
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
50734
79%
**44
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
42424
66%
**97
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
36172
57%
**92
93%
Shooters World Long Rifle
<<locked>>
81%
36985
58%
**57
95%
Shooters World Match Rifle
<<locked>>
81%
50676
79%
**36
100%
Shooters World Precision
<<locked>>
81%
45266
71%
**38
100%
Somchem S335
<<locked>>
81%
50241
79%
**38
100%
Somchem S341
<<locked>>
81%
51517
81%
**49
100%
Somchem S355
<<locked>>
81%
40944
64%
**62
99%
[Somchem S361]*
<<locked>>
90%
41611
65%
**40
90%
Somchem S365
<<locked>>
81%
29994
47%
**89
97%
[Somchem S385]*
<<locked>>
85%
32387
51%
**82
90%
Vihtavuori N133
<<locked>>
81%
47776
75%
**82
100%
Vihtavuori N135
<<locked>>
81%
39711
62%
**94
100%
Vihtavuori N140
<<locked>>
81%
46775
73%
**22
100%
Vihtavuori N150
<<locked>>
81%
34795
55%
**02
99%
Vihtavuori N160
<<locked>>
81%
36419
57%
**77
96%
[Vihtavuori N165]*
<<locked>>
92%
34127
53%
**12
90%
Vihtavuori N540
<<locked>>
81%
46485
73%
**48
100%
Vihtavuori N550
<<locked>>
81%
37014
58%
**30
96%
[Vihtavuori N555]*
<<locked>>
81%
25556
40%
**51
91%
Winchester 6.5 StaBALL
<<locked>>
81%
34606
54%
**25
98%
[Winchester 760]*
<<locked>>
81%
38885
61%
**72
94%
[Winchester StaBALL HD]*
<<locked>>
85%
24323
38%
**31
90%
[Winchester Supreme 780]*
<<locked>>
88%
36013
56%
**61
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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