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Load data for 8.5 x 63 R + .338 | 225gr | Barnes MRX BT

Recommended Powder(s):

8.5 x 63 R + .338 | 225gr | Barnes MRX BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Barnes MRX BT
Manufacturer SKU:
33867
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
8.5 x 63 R load data
Case Length (l3):
2.480" | 63.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
75.5 Grains of Water | 4.90 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
55114 psi | 3800 bar
LID:
LID_B674_C1208
Last updated:
2026-03-25
Recommended Twist Rate:
1:13 - 1:11

Load data for 190 loads in caliber 8.5 x 63 R with .338 | 225gr | Barnes MRX BT bullet and 95 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>>
89%
48776
89%
**77
99%
ADI AR 2208
<<locked>>
94%
49095
89%
**61
99%
ADI Benchmark 8208
<<locked>>
87%
48878
89%
**51
100%
Accurate 2015
<<locked>>
85%
49487
90%
**02
100%
Accurate 2200
<<locked>>
87%
49284
89%
**44
98%
Accurate 2230
<<locked>>
83%
49052
89%
**38
99%
Accurate 2460
<<locked>>
83%
48791
89%
**44
100%
Accurate 2495
<<locked>>
89%
49313
89%
**70
100%
Accurate 2520
<<locked>>
88%
49443
90%
**84
100%
[Accurate 2700]*
<<locked>>
95%
49385
90%
**05
94%
Accurate 4064
<<locked>>
94%
49037
89%
**84
100%
Accurate 4350
<<locked>>
97%
38972
71%
**88
96%
Alliant AR-Comp
<<locked>>
88%
49559
90%
**57
100%
Alliant Power Pro 2000-MR
<<locked>>
91%
49284
89%
**89
99%
Alliant Reloder- TS 15.5
<<locked>>
95%
49342
90%
**00
100%
Alliant Reloder-15
<<locked>>
92%
49269
89%
**03
99%
Alliant Reloder-16
<<locked>>
97%
40408
73%
**02
96%
Alliant Reloder-17
<<locked>>
97%
45934
83%
**36
99%
[Alliant Reloder-23]*
<<locked>>
97%
28036
51%
**42
92%
Baschieri & Pellagri 107
<<locked>>
89%
49153
89%
**03
98%
Bofors RP3 👍
<<locked>>
95%
49588
90%
**13
100%
[Bofors RP7]*
<<locked>>
97%
46920
85%
**15
94%
Hodgdon BL-C2
<<locked>>
87%
48544
88%
**00
100%
Hodgdon Benchmark
<<locked>>
85%
48892
89%
**08
100%
Hodgdon CFE223
<<locked>>
93%
49095
89%
**39
98%
Hodgdon H322
<<locked>>
85%
48863
89%
**44
100%
Hodgdon H380
<<locked>>
94%
49081
89%
**93
98%
Hodgdon H414
<<locked>>
97%
47500
86%
**13
95%
Hodgdon H4895
<<locked>>
89%
49153
89%
**84
99%
Hodgdon Hybrid 100V
<<locked>>
97%
36709
67%
**06
97%
Hodgdon LVR
<<locked>>
97%
44135
80%
**51
96%
[Hodgdon Superperformance]*
<<locked>>
97%
44324
80%
**64
93%
Hodgdon VARGET
<<locked>>
95%
49530
90%
**70
99%
IMR 3031
<<locked>>
92%
49052
89%
**87
100%
IMR 4064
<<locked>>
95%
48863
89%
**54
99%
IMR 4166 Enduron
<<locked>>
95%
48921
89%
**21
95%
[IMR 4350]*
<<locked>>
96%
41133
75%
**36
92%
IMR 4451 Enduron
<<locked>>
97%
49110
89%
**51
95%
[IMR 4831]*
<<locked>>
96%
33475
61%
**57
94%
IMR 4895 👍
<<locked>>
92%
49588
90%
**20
99%
IMR 8208 XBR
<<locked>>
87%
48878
89%
**51
100%
Lovex D073.5
<<locked>>
84%
49139
89%
**48
100%
Lovex D073.6
<<locked>>
90%
49443
90%
**84
100%
Lovex S060
<<locked>>
88%
48892
89%
**11
99%
Lovex S062
<<locked>>
93%
49588
90%
**74
100%
Lovex S065
<<locked>>
97%
44875
81%
**95
96%
[Lovex S070]*
<<locked>>
97%
42656
77%
**79
94%
Norma 201
<<locked>>
89%
48675
88%
**51
100%
Norma 202
<<locked>>
89%
49371
90%
**61
100%
Norma 203B
<<locked>>
93%
49342
90%
**07
99%
Norma URP
<<locked>>
97%
40219
73%
**95
96%
Ramshot Big Game 👍
<<locked>>
93%
49458
90%
**30
99%
[Ramshot Hunter]*
<<locked>>
97%
39639
72%
**75
93%
Ramshot TAC
<<locked>>
87%
48791
89%
**48
97%
Ramshot Wild Boar
<<locked>>
88%
49574
90%
**97
99%
Ramshot X-Terminator
<<locked>>
84%
49269
89%
**38
99%
ReloadSwiss RS 14
<<locked>>
97%
33141
60%
**12
100%
ReloadSwiss RS 40
<<locked>>
84%
49516
90%
**51
100%
ReloadSwiss RS 50
<<locked>>
94%
49458
90%
**67
96%
ReloadSwiss RS 52 👍
<<locked>>
91%
48921
89%
**59
99%
ReloadSwiss RS 60 👍
<<locked>>
97%
49182
89%
**98
100%
ReloadSwiss RS 62
<<locked>>
97%
39262
71%
**05
95%
ReloadSwiss RS 70
<<locked>>
97%
40364
73%
**15
95%
Rottweil R 901
<<locked>>
87%
49110
89%
**31
100%
Rottweil R 902
<<locked>>
91%
48892
89%
**41
100%
Rottweil R 903
<<locked>>
97%
48994
89%
**00
100%
[Rottweil R 907]*
<<locked>>
97%
46920
85%
**15
94%
SNPE Vectan SP 11
<<locked>>
96%
49110
89%
**30
99%
SNPE Vectan SP 7
<<locked>>
88%
48863
89%
**57
97%
SNPE Vectan SP 9
<<locked>>
90%
49458
90%
**84
99%
SNPE Vectan Tubal 3000
<<locked>>
88%
48863
89%
**75
100%
SNPE Vectan Tubal 5000
<<locked>>
94%
48907
89%
**82
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
97%
44904
81%
**56
94%
Shooters World Long Rifle
<<locked>>
97%
44875
81%
**95
96%
Shooters World Match Rifle
<<locked>>
90%
49443
90%
**84
100%
Shooters World Precision
<<locked>>
93%
49588
90%
**74
100%
Somchem S321
<<locked>>
85%
48834
89%
**70
100%
Somchem S335
<<locked>>
89%
49327
90%
**95
100%
Somchem S341
<<locked>>
89%
49400
90%
**70
99%
Somchem S355
<<locked>>
97%
49472
90%
**97
99%
Somchem S365
<<locked>>
96%
35114
64%
**39
98%
Vihtavuori N130
<<locked>>
85%
49545
90%
**65
100%
Vihtavuori N133
<<locked>>
90%
49211
89%
**75
100%
Vihtavuori N135
<<locked>>
97%
47456
86%
**18
100%
Vihtavuori N140
<<locked>>
92%
49240
89%
**38
100%
Vihtavuori N150
<<locked>>
97%
41974
76%
**52
99%
Vihtavuori N160
<<locked>>
97%
44295
80%
**25
97%
Vihtavuori N530
<<locked>>
85%
49153
89%
**61
100%
Vihtavuori N540
<<locked>>
92%
49298
89%
**67
100%
Vihtavuori N550
<<locked>>
97%
43976
80%
**67
97%
[Vihtavuori N555]*
<<locked>>
97%
29211
53%
**11
92%
Winchester 6.5 StaBALL
<<locked>>
97%
43352
79%
**88
99%
Winchester 748
<<locked>>
85%
49023
89%
**00
100%
Winchester 760
<<locked>>
97%
47500
86%
**13
95%
Winchester StaBALL Match
<<locked>>
83%
49226
89%
**93
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
38101
69%
**90
97%
[ADI AR 2208]*
<<locked>>
81%
32721
59%
**62
94%
ADI Benchmark 8208
<<locked>>
81%
40277
73%
**06
99%
Accurate 2015
<<locked>>
81%
43511
79%
**13
100%
Accurate 2200
<<locked>>
81%
40596
74%
**00
96%
Accurate 2230
<<locked>>
81%
45469
82%
**82
99%
Accurate 2460
<<locked>>
81%
45310
82%
**88
100%
Accurate 2495
<<locked>>
81%
37666
68%
**93
100%
Accurate 2520
<<locked>>
81%
38957
71%
**23
100%
[Accurate 2700]*
<<locked>>
86%
36782
67%
**95
90%
Accurate 4064
<<locked>>
81%
31676
57%
**85
99%
[Accurate 4350]*
<<locked>>
86%
26527
48%
**10
90%
Alliant AR-Comp
<<locked>>
81%
39392
71%
**13
100%
[Alliant Power Pro 2000-MR]*
<<locked>>
81%
34592
63%
**00
94%
Alliant Reloder- TS 15.5
<<locked>>
81%
31502
57%
**78
96%
Alliant Reloder-15
<<locked>>
81%
33808
61%
**21
95%
[Alliant Reloder-16]*
<<locked>>
85%
28108
51%
**10
90%
[Alliant Reloder-17]*
<<locked>>
81%
27296
50%
**16
92%
[Alliant Reloder-23]*
<<locked>>
94%
25788
47%
**77
90%
Baschieri & Pellagri 107
<<locked>>
81%
37202
68%
**93
95%
Bofors RP3
<<locked>>
81%
30487
55%
**65
96%
[Bofors RP7]*
<<locked>>
88%
36013
65%
**15
90%
Hodgdon BL-C2
<<locked>>
81%
38566
70%
**33
98%
Hodgdon Benchmark
<<locked>>
81%
42598
77%
**06
99%
[Hodgdon CFE223]*
<<locked>>
81%
32358
59%
**21
93%
Hodgdon H322
<<locked>>
81%
43047
78%
**56
100%
[Hodgdon H380]*
<<locked>>
81%
31763
58%
**72
92%
[Hodgdon H414]*
<<locked>>
87%
34737
63%
**70
90%
Hodgdon H4895
<<locked>>
81%
38334
70%
**03
98%
[Hodgdon Hybrid 100V]*
<<locked>>
83%
24018
44%
**82
90%
[Hodgdon LVR]*
<<locked>>
84%
29298
53%
**39
90%
[Hodgdon Superperformance]*
<<locked>>
93%
38435
70%
**46
90%
[Hodgdon VARGET]*
<<locked>>
81%
32387
59%
**56
94%
IMR 3031
<<locked>>
81%
34127
62%
**44
100%
[IMR 4064]*
<<locked>>
81%
31749
58%
**36
94%
[IMR 4166 Enduron]*
<<locked>>
83%
34055
62%
**42
90%
[IMR 4350]*
<<locked>>
93%
36376
66%
**44
90%
[IMR 4451 Enduron]*
<<locked>>
85%
34780
63%
**92
90%
[IMR 4831]*
<<locked>>
89%
26527
48%
**83
90%
IMR 4895
<<locked>>
81%
34635
63%
**54
96%
IMR 8208 XBR
<<locked>>
81%
40277
73%
**06
99%
Lovex D073.5
<<locked>>
81%
45005
82%
**85
100%
Lovex D073.6
<<locked>>
81%
36172
66%
**70
99%
Lovex S060
<<locked>>
81%
39102
71%
**44
97%
Lovex S062
<<locked>>
81%
33518
61%
**88
97%
[Lovex S065]*
<<locked>>
84%
29936
54%
**96
90%
[Lovex S070]*
<<locked>>
89%
33388
61%
**95
90%
Norma 201
<<locked>>
81%
37391
68%
**57
98%
Norma 202
<<locked>>
81%
37608
68%
**70
100%
Norma 203B
<<locked>>
81%
33315
60%
**18
96%
[Norma URP]*
<<locked>>
85%
27238
49%
**00
90%
Ramshot Big Game
<<locked>>
81%
32967
60%
**28
95%
[Ramshot Hunter]*
<<locked>>
91%
32430
59%
**21
90%
Ramshot TAC
<<locked>>
81%
40582
74%
**10
95%
Ramshot Wild Boar
<<locked>>
81%
39392
71%
**26
97%
Ramshot X-Terminator
<<locked>>
81%
43729
79%
**52
98%
ReloadSwiss RS 14
<<locked>>
93%
31676
57%
**86
100%
ReloadSwiss RS 40
<<locked>>
81%
45440
82%
**88
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
32605
59%
**56
90%
ReloadSwiss RS 52
<<locked>>
81%
35012
64%
**10
95%
ReloadSwiss RS 60
<<locked>>
81%
29080
53%
**85
96%
[ReloadSwiss RS 62]*
<<locked>>
87%
28166
51%
**49
90%
[ReloadSwiss RS 70]*
<<locked>>
90%
32242
58%
**24
90%
Rottweil R 901
<<locked>>
81%
41234
75%
**06
100%
Rottweil R 902
<<locked>>
81%
35462
64%
**15
98%
[Rottweil R 903]*
<<locked>>
81%
28514
52%
**16
94%
[Rottweil R 907]*
<<locked>>
88%
36013
65%
**15
90%
[SNPE Vectan SP 11]*
<<locked>>
81%
30110
55%
**62
94%
SNPE Vectan SP 7
<<locked>>
81%
38116
69%
**74
95%
SNPE Vectan SP 9
<<locked>>
81%
36811
67%
**64
97%
SNPE Vectan Tubal 3000
<<locked>>
81%
39160
71%
**28
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
31966
58%
**06
99%
[SNPE Vectan Tubal 7000]*
<<locked>>
88%
33127
60%
**46
90%
[Shooters World Long Rifle]*
<<locked>>
84%
29936
54%
**96
90%
Shooters World Match Rifle
<<locked>>
81%
36172
66%
**70
99%
Shooters World Precision
<<locked>>
81%
33518
61%
**88
97%
Somchem S321
<<locked>>
81%
43279
79%
**79
99%
Somchem S335
<<locked>>
81%
38638
70%
**34
100%
Somchem S341
<<locked>>
81%
37826
69%
**77
97%
Somchem S355
<<locked>>
81%
29965
54%
**33
95%
[Somchem S365]*
<<locked>>
82%
22307
40%
**75
90%
Vihtavuori N130
<<locked>>
81%
43816
79%
**83
100%
Vihtavuori N133
<<locked>>
81%
36825
67%
**88
100%
Vihtavuori N135
<<locked>>
81%
28993
53%
**93
99%
Vihtavuori N140
<<locked>>
81%
35012
64%
**05
99%
[Vihtavuori N150]*
<<locked>>
81%
25396
46%
**05
94%
[Vihtavuori N160]*
<<locked>>
83%
27891
51%
**83
90%
Vihtavuori N530
<<locked>>
81%
42482
77%
**56
99%
Vihtavuori N540
<<locked>>
81%
34693
63%
**24
99%
[Vihtavuori N550]*
<<locked>>
82%
27209
49%
**03
90%
[Vihtavuori N555]*
<<locked>>
93%
25817
47%
**13
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
25701
47%
**98
91%
Winchester 748
<<locked>>
81%
42438
77%
**98
100%
[Winchester 760]*
<<locked>>
87%
34737
63%
**70
90%
Winchester StaBALL Match
<<locked>>
81%
44933
82%
**28
99%

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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