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Load data for .338 Weatherby RPM + .338 | 225gr | Hornady GMX

Recommended Powder(s): Alliant Power Pro 2000-MR, Hodgdon CFE223, Ramshot Big Game, ReloadSwiss RS 52, ReloadSwiss RS 60

.338 Weatherby RPM + .338 | 225gr | Hornady GMX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 225gr | Hornady GMX
Manufacturer SKU:
33201
Bullet Weight:
225gr | 14.6g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
.338 Weatherby RPM load data
Case Length (l3):
2.550" | 64.8mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
81.6 Grains of Water | 5.30 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
65000 psi | 4482 bar
LID:
LID_B2753_C455
Last updated:
2026-03-25
Recommended Twist Rate:
1:12 - 1:10

Load data for 216 loads in caliber .338 Weatherby RPM with .338 | 225gr | Hornady GMX bullet and 108 powders such as Alliant Power Pro 2000-MR, Hodgdon CFE223, Ramshot Big Game, ReloadSwiss RS 52, ReloadSwiss RS 60. 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>>
93%
58465
90%
**44
100%
ADI AR 2208
<<locked>>
97%
56289
87%
**92
100%
ADI AR 2219
<<locked>>
84%
58044
89%
**89
100%
ADI Benchmark 8208
<<locked>>
91%
57624
89%
**98
100%
Accurate 2015
<<locked>>
89%
57928
89%
**30
100%
Accurate 2200
<<locked>>
91%
58407
90%
**02
99%
Accurate 2230
<<locked>>
87%
58494
90%
**92
100%
Accurate 2460
<<locked>>
87%
58436
90%
**95
100%
Accurate 2495
<<locked>>
92%
58479
90%
**08
100%
Accurate 2520
<<locked>>
91%
57783
89%
**21
100%
Accurate 2700
<<locked>>
97%
55114
85%
**23
96%
Accurate 4064
<<locked>>
97%
56304
87%
**08
100%
Accurate 4350
<<locked>>
97%
42003
65%
**67
97%
Alliant AR-Comp
<<locked>>
91%
57334
88%
**69
100%
Alliant Power Pro 2000-MR 👍
<<locked>>
95%
57914
89%
**49
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
54984
85%
**05
100%
Alliant Reloder-10x
<<locked>>
86%
57986
89%
**36
100%
Alliant Reloder-15
<<locked>>
96%
58030
89%
**61
100%
Alliant Reloder-16
<<locked>>
97%
42482
65%
**84
97%
Alliant Reloder-17
<<locked>>
97%
48805
75%
**18
100%
[Alliant Reloder-23]*
<<locked>>
97%
29820
46%
**28
94%
Baschieri & Pellagri 106
<<locked>>
84%
57493
88%
**90
100%
Baschieri & Pellagri 107
<<locked>>
93%
58088
89%
**57
100%
Bofors RP3
<<locked>>
97%
55564
85%
**25
100%
Bofors RP7
<<locked>>
97%
49792
77%
**97
95%
Hodgdon BL-C2
<<locked>>
91%
58204
90%
**61
100%
Hodgdon Benchmark
<<locked>>
90%
57638
89%
**56
100%
Hodgdon CFE223 👍
<<locked>>
96%
58320
90%
**00
100%
Hodgdon H322
<<locked>>
89%
58044
89%
**89
100%
Hodgdon H335
<<locked>>
84%
57725
89%
**95
100%
Hodgdon H380
<<locked>>
97%
56913
88%
**35
99%
Hodgdon H414
<<locked>>
97%
50024
77%
**89
96%
Hodgdon H4198
<<locked>>
83%
58305
90%
**07
100%
[Hodgdon H4350]*
<<locked>>
97%
41394
64%
**82
93%
Hodgdon H4895
<<locked>>
92%
58059
89%
**41
100%
Hodgdon Hybrid 100V
<<locked>>
96%
38377
59%
**65
98%
Hodgdon LVR
<<locked>>
97%
46891
72%
**30
97%
[Hodgdon Superperformance]*
<<locked>>
97%
46514
72%
**36
94%
Hodgdon VARGET
<<locked>>
96%
54955
85%
**82
100%
Hodgdon TrailBoss
<<locked>>
96%
32924
51%
**03
100%
IMR 3031
<<locked>>
96%
58479
90%
**35
100%
IMR 4064
<<locked>>
97%
54476
84%
**66
100%
IMR 4166 Enduron
<<locked>>
97%
54186
83%
**30
97%
IMR 4198
<<locked>>
86%
57580
89%
**90
100%
[IMR 4350]*
<<locked>>
97%
43424
67%
**15
93%
IMR 4451 Enduron
<<locked>>
97%
51880
80%
**26
96%
IMR 4831
<<locked>>
97%
35839
55%
**33
95%
IMR 4895
<<locked>>
95%
57595
89%
**61
100%
IMR 8208 XBR
<<locked>>
91%
57624
89%
**98
100%
Lovex D073.4
<<locked>>
85%
58131
89%
**82
100%
Lovex D073.5
<<locked>>
87%
57914
89%
**89
100%
Lovex D073.6
<<locked>>
93%
58276
90%
**25
100%
Lovex S060
<<locked>>
92%
57580
89%
**66
100%
Lovex S062
<<locked>>
96%
57580
89%
**08
100%
Lovex S065
<<locked>>
97%
47601
73%
**74
97%
Lovex S070
<<locked>>
97%
44730
69%
**44
95%
Norma 201
<<locked>>
93%
57899
89%
**05
100%
Norma 202
<<locked>>
93%
57928
89%
**02
100%
Norma 203B
<<locked>>
96%
58102
89%
**57
100%
[Norma 204]*
<<locked>>
97%
43482
67%
**44
92%
Norma URP
<<locked>>
97%
42134
65%
**61
97%
Ramshot Big Game 👍
<<locked>>
96%
58465
90%
**80
100%
Ramshot Hunter
<<locked>>
97%
41510
64%
**54
95%
Ramshot TAC
<<locked>>
91%
58102
89%
**15
99%
Ramshot Wild Boar
<<locked>>
91%
57595
89%
**38
100%
Ramshot X-Terminator
<<locked>>
88%
58001
89%
**92
100%
ReloadSwiss RS 14
<<locked>>
96%
33112
51%
**35
100%
ReloadSwiss RS 40
<<locked>>
87%
58407
90%
**95
100%
ReloadSwiss RS 50
<<locked>>
97%
58160
89%
**25
98%
ReloadSwiss RS 52 👍
<<locked>>
94%
57986
89%
**20
100%
ReloadSwiss RS 60 👍
<<locked>>
97%
52228
80%
**74
100%
ReloadSwiss RS 62
<<locked>>
97%
41771
64%
**87
97%
ReloadSwiss RS 70
<<locked>>
97%
42786
66%
**93
96%
Rottweil R 901
<<locked>>
91%
57885
89%
**72
100%
Rottweil R 902
<<locked>>
95%
58421
90%
**02
100%
Rottweil R 903
<<locked>>
97%
51372
79%
**62
100%
Rottweil R 907
<<locked>>
97%
49792
77%
**97
95%
SNPE Vectan SP 10
<<locked>>
83%
58175
89%
**98
100%
SNPE Vectan SP 11
<<locked>>
97%
53374
82%
**18
100%
SNPE Vectan SP 7
<<locked>>
92%
58015
89%
**15
99%
SNPE Vectan SP 9
<<locked>>
94%
58378
90%
**41
100%
SNPE Vectan Tubal 3000
<<locked>>
92%
57682
89%
**20
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
55405
85%
**90
100%
SNPE Vectan Tubal 7000
<<locked>>
96%
46934
72%
**21
95%
Shooters World Long Rifle
<<locked>>
97%
47601
73%
**74
97%
Shooters World Match Rifle
<<locked>>
93%
58276
90%
**25
100%
Shooters World Precision
<<locked>>
96%
57580
89%
**08
100%
Shooters World Tactical Rifle
<<locked>>
85%
57870
89%
**66
100%
Somchem S321
<<locked>>
88%
58030
89%
**25
100%
Somchem S335
<<locked>>
93%
58131
89%
**33
100%
Somchem S341
<<locked>>
92%
58276
90%
**18
100%
Somchem S355
<<locked>>
97%
52562
81%
**66
100%
Somchem S365
<<locked>>
97%
37521
58%
**18
99%
Vihtavuori N120
<<locked>>
84%
58407
90%
**28
100%
Vihtavuori N130
<<locked>>
89%
57885
89%
**93
100%
Vihtavuori N133
<<locked>>
95%
58030
89%
**13
100%
Vihtavuori N135
<<locked>>
97%
50314
77%
**80
100%
Vihtavuori N140
<<locked>>
95%
57914
89%
**75
100%
Vihtavuori N150
<<locked>>
96%
43700
67%
**11
100%
Vihtavuori N160
<<locked>>
97%
47050
72%
**00
98%
Vihtavuori N530
<<locked>>
89%
57464
88%
**05
100%
Vihtavuori N540
<<locked>>
95%
58015
89%
**05
100%
Vihtavuori N550
<<locked>>
97%
46833
72%
**43
98%
[Vihtavuori N555]*
<<locked>>
97%
31154
48%
**87
94%
Winchester 6.5 StaBALL
<<locked>>
97%
45701
70%
**61
99%
Winchester 748
<<locked>>
89%
58494
90%
**57
100%
Winchester 760
<<locked>>
97%
50024
77%
**89
96%
Winchester StaBALL Match
<<locked>>
87%
58262
90%
**48
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
40001
62%
**59
98%
ADI AR 2208
<<locked>>
81%
34084
52%
**21
95%
ADI AR 2219
<<locked>>
81%
53316
82%
**30
100%
ADI Benchmark 8208
<<locked>>
81%
42090
65%
**72
99%
Accurate 2015
<<locked>>
81%
45469
70%
**75
100%
Accurate 2200
<<locked>>
81%
42351
65%
**65
97%
Accurate 2230
<<locked>>
81%
47892
74%
**51
100%
Accurate 2460
<<locked>>
81%
47834
74%
**57
100%
Accurate 2495
<<locked>>
81%
39929
61%
**56
100%
Accurate 2520
<<locked>>
81%
40988
63%
**82
100%
[Accurate 2700]*
<<locked>>
83%
35317
54%
**95
90%
Accurate 4064
<<locked>>
81%
33576
52%
**51
100%
[Accurate 4350]*
<<locked>>
83%
25585
39%
**03
90%
Alliant AR-Comp
<<locked>>
81%
41466
64%
**69
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
36303
56%
**69
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
33083
51%
**38
97%
Alliant Reloder-10x
<<locked>>
81%
49792
77%
**31
100%
Alliant Reloder-15
<<locked>>
81%
35636
55%
**93
96%
[Alliant Reloder-16]*
<<locked>>
83%
27369
42%
**19
90%
[Alliant Reloder-17]*
<<locked>>
81%
28776
44%
**92
94%
[Alliant Reloder-23]*
<<locked>>
91%
24613
38%
**67
90%
Baschieri & Pellagri 106
<<locked>>
81%
51590
79%
**18
100%
Baschieri & Pellagri 107
<<locked>>
81%
39146
60%
**59
96%
Bofors RP3
<<locked>>
81%
32271
50%
**38
97%
[Bofors RP7]*
<<locked>>
86%
35114
54%
**28
90%
Hodgdon BL-C2
<<locked>>
81%
41017
63%
**05
99%
Hodgdon Benchmark
<<locked>>
81%
44570
69%
**72
100%
Hodgdon CFE223
<<locked>>
81%
34301
53%
**93
95%
Hodgdon H322
<<locked>>
81%
44904
69%
**15
100%
Hodgdon H335
<<locked>>
81%
52315
80%
**33
100%
[Hodgdon H380]*
<<locked>>
81%
33591
52%
**38
94%
[Hodgdon H414]*
<<locked>>
84%
33040
51%
**64
90%
Hodgdon H4198
<<locked>>
81%
54360
84%
**57
100%
[Hodgdon H4350]*
<<locked>>
92%
35244
54%
**54
90%
Hodgdon H4895
<<locked>>
81%
40292
62%
**65
98%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
23467
36%
**95
90%
[Hodgdon LVR]*
<<locked>>
81%
28195
43%
**36
90%
[Hodgdon Superperformance]*
<<locked>>
90%
36332
56%
**39
90%
Hodgdon VARGET
<<locked>>
81%
33881
52%
**18
95%
Hodgdon TrailBoss
<<locked>>
93%
31575
49%
**76
100%
IMR 3031
<<locked>>
81%
36172
56%
**13
100%
IMR 4064
<<locked>>
81%
33301
51%
**98
95%
[IMR 4166 Enduron]*
<<locked>>
81%
33692
52%
**69
91%
IMR 4198
<<locked>>
81%
50314
77%
**98
100%
[IMR 4350]*
<<locked>>
90%
35157
54%
**51
90%
[IMR 4451 Enduron]*
<<locked>>
83%
33359
51%
**85
90%
[IMR 4831]*
<<locked>>
86%
25846
40%
**87
90%
IMR 4895
<<locked>>
81%
36521
56%
**20
97%
IMR 8208 XBR
<<locked>>
81%
42090
65%
**72
99%
Lovex D073.4
<<locked>>
81%
49835
77%
**74
100%
Lovex D073.5
<<locked>>
81%
47239
73%
**51
100%
Lovex D073.6
<<locked>>
81%
38450
59%
**39
100%
Lovex S060
<<locked>>
81%
41017
63%
**10
98%
Lovex S062
<<locked>>
81%
35389
54%
**54
98%
[Lovex S065]*
<<locked>>
81%
28935
45%
**00
90%
[Lovex S070]*
<<locked>>
86%
31966
49%
**95
90%
Norma 201
<<locked>>
81%
39189
60%
**16
99%
Norma 202
<<locked>>
81%
39407
61%
**29
100%
Norma 203B
<<locked>>
81%
35143
54%
**83
97%
[Norma 204]*
<<locked>>
94%
39871
61%
**75
90%
[Norma URP]*
<<locked>>
83%
26716
41%
**10
90%
Ramshot Big Game
<<locked>>
81%
34693
53%
**93
96%
[Ramshot Hunter]*
<<locked>>
88%
31618
49%
**28
90%
Ramshot TAC
<<locked>>
81%
42351
65%
**75
96%
Ramshot Wild Boar
<<locked>>
81%
41379
64%
**92
98%
Ramshot X-Terminator
<<locked>>
81%
45672
70%
**11
99%
ReloadSwiss RS 14
<<locked>>
90%
30327
47%
**83
100%
ReloadSwiss RS 40
<<locked>>
81%
47805
74%
**54
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
34214
53%
**21
92%
ReloadSwiss RS 52
<<locked>>
81%
37260
57%
**85
97%
ReloadSwiss RS 60
<<locked>>
81%
30661
47%
**54
98%
[ReloadSwiss RS 62]*
<<locked>>
84%
27340
42%
**56
90%
[ReloadSwiss RS 70]*
<<locked>>
87%
30748
47%
**21
90%
Rottweil R 901
<<locked>>
81%
43091
66%
**59
100%
Rottweil R 902
<<locked>>
81%
37159
57%
**70
98%
Rottweil R 903
<<locked>>
81%
30356
47%
**85
96%
[Rottweil R 907]*
<<locked>>
86%
35114
54%
**28
90%
SNPE Vectan SP 10
<<locked>>
81%
53490
82%
**39
100%
SNPE Vectan SP 11
<<locked>>
81%
31879
49%
**34
95%
SNPE Vectan SP 7
<<locked>>
81%
40030
62%
**43
96%
SNPE Vectan SP 9
<<locked>>
81%
38783
60%
**29
97%
SNPE Vectan Tubal 3000
<<locked>>
81%
40915
63%
**83
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
33518
52%
**59
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
86%
32198
50%
**59
90%
[Shooters World Long Rifle]*
<<locked>>
81%
28935
45%
**00
90%
Shooters World Match Rifle
<<locked>>
81%
38450
59%
**39
100%
Shooters World Precision
<<locked>>
81%
35389
54%
**54
98%
Shooters World Tactical Rifle
<<locked>>
81%
50546
78%
**70
100%
Somchem S321
<<locked>>
81%
45339
70%
**41
100%
Somchem S335
<<locked>>
81%
40509
62%
**90
100%
Somchem S341
<<locked>>
81%
39827
61%
**46
98%
Somchem S355
<<locked>>
81%
31589
49%
**98
96%
[Somchem S365]*
<<locked>>
81%
22626
35%
**14
91%
Vihtavuori N120
<<locked>>
81%
53650
83%
**79
100%
Vihtavuori N130
<<locked>>
81%
45672
70%
**39
100%
Vihtavuori N133
<<locked>>
81%
38537
59%
**41
100%
Vihtavuori N135
<<locked>>
81%
30472
47%
**52
100%
Vihtavuori N140
<<locked>>
81%
36637
56%
**67
100%
Vihtavuori N150
<<locked>>
81%
26789
41%
**64
95%
[Vihtavuori N160]*
<<locked>>
81%
27702
43%
**10
91%
Vihtavuori N530
<<locked>>
81%
44512
68%
**21
100%
Vihtavuori N540
<<locked>>
81%
36419
56%
**80
100%
[Vihtavuori N550]*
<<locked>>
81%
27760
43%
**42
91%
[Vihtavuori N555]*
<<locked>>
90%
25019
38%
**13
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
26948
41%
**64
93%
Winchester 748
<<locked>>
81%
44657
69%
**61
100%
[Winchester 760]*
<<locked>>
84%
33040
51%
**64
90%
Winchester StaBALL Match
<<locked>>
81%
47732
73%
**00
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.

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