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Load data for .338 Weatherby RPM + .338 | 285gr | Hornady BTHP

Recommended Powder(s): Hodgdon H380, Hodgdon H414, Hodgdon LVR, Vihtavuori N550, Winchester 760

.338 Weatherby RPM + .338 | 285gr | Hornady BTHP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 285gr | Hornady BTHP
Manufacturer SKU:
3339
Bullet Weight:
285gr | 18.5g
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_B2761_C455
Last updated:
2026-01-20
Recommended Twist Rate:
1:11 - 1:9

Load data for 220 loads in caliber .338 Weatherby RPM with .338 | 285gr | Hornady BTHP bullet and 110 powders such as Hodgdon H380, Hodgdon H414, Hodgdon LVR, Vihtavuori N550, Winchester 760. 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.

    .

    Loading_icon.gif

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>>
88%
58073
89%
**13
100%
ADI AR 2208
<<locked>>
93%
57624
89%
**97
100%
ADI AR 2209
<<locked>>
96%
44106
68%
**92
95%
Accurate 2015
<<locked>>
84%
58334
90%
**01
100%
Accurate 2200
<<locked>>
86%
57580
89%
**80
100%
Accurate 2495
<<locked>>
86%
57392
88%
**51
100%
Accurate 2520
<<locked>>
86%
58131
89%
**90
100%
Accurate 2700
<<locked>>
94%
58479
90%
**70
99%
Accurate 3100
<<locked>>
96%
36608
56%
**73
96%
Accurate 4064
<<locked>>
92%
58363
90%
**87
100%
Accurate 4350
<<locked>>
96%
51401
79%
**00
100%
Alliant AR-Comp
<<locked>>
86%
57885
89%
**34
100%
Alliant Power Pro 2000-MR
<<locked>>
90%
58001
89%
**21
100%
Alliant Reloder- TS 15.5
<<locked>>
93%
58392
90%
**20
100%
Alliant Reloder-15
<<locked>>
91%
58363
90%
**36
100%
Alliant Reloder-16
<<locked>>
97%
50154
77%
**06
100%
Alliant Reloder-17
<<locked>>
97%
58059
89%
**21
100%
Alliant Reloder-19
<<locked>>
96%
43294
67%
**88
95%
[Alliant Reloder-22]*
<<locked>>
97%
38101
59%
**39
94%
Alliant Reloder-23
<<locked>>
97%
35766
55%
**06
99%
[Alliant Reloder-25]*
<<locked>>
96%
31386
48%
**14
94%
Alliant Reloder-26
<<locked>>
97%
39523
61%
**34
99%
Baschieri & Pellagri 107
<<locked>>
88%
57682
89%
**29
100%
[Bofors RP15]*
<<locked>>
97%
35346
54%
**83
92%
Bofors RP3
<<locked>>
93%
58494
90%
**29
100%
[Bofors RP5]*
<<locked>>
97%
38101
59%
**39
94%
Bofors RP7
<<locked>>
97%
57754
89%
**06
99%
Hodgdon BL-C2
<<locked>>
86%
58320
90%
**29
100%
Hodgdon Benchmark
<<locked>>
85%
58218
90%
**44
100%
Hodgdon CFE223
<<locked>>
91%
57798
89%
**69
100%
Hodgdon H322
<<locked>>
84%
58320
90%
**57
100%
Hodgdon H380 👍
<<locked>>
92%
58146
89%
**33
100%
Hodgdon H414 👍
<<locked>>
96%
58088
89%
**88
99%
Hodgdon H4350
<<locked>>
97%
48399
74%
**08
97%
[Hodgdon H4831 SC]*
<<locked>>
97%
41655
64%
**33
92%
Hodgdon Hybrid 100V
<<locked>>
97%
46818
72%
**08
100%
Hodgdon LVR 👍
<<locked>>
96%
55187
85%
**36
100%
Hodgdon Superperformance
<<locked>>
97%
55608
86%
**85
99%
Hodgdon VARGET
<<locked>>
93%
57943
89%
**00
100%
IMR 3031
<<locked>>
90%
58204
90%
**87
100%
IMR 4064
<<locked>>
94%
57638
89%
**87
100%
IMR 4166 Enduron
<<locked>>
94%
57711
89%
**80
99%
IMR 4350
<<locked>>
96%
50966
78%
**44
98%
IMR 4451 Enduron
<<locked>>
95%
57624
89%
**03
99%
IMR 4831
<<locked>>
96%
43497
67%
**78
99%
IMR 4895
<<locked>>
90%
57914
89%
**33
100%
[IMR 4955 Enduron]*
<<locked>>
97%
42003
65%
**10
93%
[IMR 7828 SSC]*
<<locked>>
97%
40161
62%
**49
92%
IMR 8208 XBR
<<locked>>
86%
57798
89%
**74
100%
Lovex D073.6
<<locked>>
88%
57537
89%
**83
100%
Lovex S060
<<locked>>
88%
57943
89%
**54
100%
Lovex S062
<<locked>>
91%
57624
89%
**83
100%
Lovex S065
<<locked>>
97%
55434
85%
**83
100%
Lovex S070
<<locked>>
97%
53505
82%
**80
99%
[Lovex S071]*
<<locked>>
97%
30879
48%
**65
94%
Norma 201
<<locked>>
88%
57783
89%
**77
100%
Norma 202
<<locked>>
88%
58465
90%
**74
100%
Norma 203B
<<locked>>
91%
57508
88%
**26
100%
Norma 204
<<locked>>
97%
51909
80%
**93
97%
Norma MRP
<<locked>>
97%
39479
61%
**98
96%
Norma URP
<<locked>>
97%
51605
79%
**03
100%
Ramshot Big Game
<<locked>>
91%
57928
89%
**46
100%
[Ramshot Grand]*
<<locked>>
97%
42279
65%
**98
93%
Ramshot Hunter
<<locked>>
97%
50227
77%
**00
99%
[Ramshot Magnum]*
<<locked>>
97%
35955
55%
**73
93%
Ramshot TAC
<<locked>>
86%
58276
90%
**06
100%
Ramshot Wild Boar
<<locked>>
86%
57841
89%
**20
100%
Ramshot X-Terminator
<<locked>>
84%
58363
90%
**80
100%
ReloadSwiss RS 50
<<locked>>
92%
57914
89%
**10
100%
ReloadSwiss RS 52
<<locked>>
88%
57972
89%
**82
100%
ReloadSwiss RS 60
<<locked>>
95%
58494
90%
**25
100%
ReloadSwiss RS 62
<<locked>>
97%
51474
79%
**26
100%
ReloadSwiss RS 70
<<locked>>
97%
50575
78%
**39
100%
Rottweil R 901
<<locked>>
86%
57812
89%
**41
100%
Rottweil R 902
<<locked>>
90%
58117
89%
**70
100%
Rottweil R 903
<<locked>>
95%
57827
89%
**16
100%
[Rottweil R 904]*
<<locked>>
96%
45716
70%
**75
94%
Rottweil R 905
<<locked>>
97%
42525
65%
**82
95%
Rottweil R 907
<<locked>>
97%
57754
89%
**06
99%
SNPE Vectan SP 11
<<locked>>
94%
57696
89%
**52
100%
SNPE Vectan SP 7
<<locked>>
87%
58392
90%
**06
100%
SNPE Vectan SP 9
<<locked>>
88%
57667
89%
**06
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
58160
89%
**01
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
58001
89%
**98
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
56260
87%
**54
99%
Shooters World Long Rifle
<<locked>>
97%
55434
85%
**83
100%
Shooters World Match Rifle
<<locked>>
88%
57537
89%
**83
100%
Shooters World Precision
<<locked>>
91%
57624
89%
**83
100%
Somchem S321
<<locked>>
84%
58204
90%
**93
100%
Somchem S335
<<locked>>
88%
57479
88%
**05
100%
Somchem S341
<<locked>>
87%
57914
89%
**97
100%
Somchem S355
<<locked>>
94%
57624
89%
**10
100%
[Somchem S361]*
<<locked>>
97%
46934
72%
**69
94%
Somchem S365
<<locked>>
96%
45324
70%
**47
100%
Somchem S385
<<locked>>
97%
42772
66%
**65
96%
Vihtavuori N130
<<locked>>
84%
58218
90%
**69
100%
Vihtavuori N133
<<locked>>
90%
58494
90%
**88
100%
Vihtavuori N135
<<locked>>
96%
58320
90%
**38
100%
Vihtavuori N140
<<locked>>
91%
58407
90%
**47
100%
Vihtavuori N150
<<locked>>
97%
52475
81%
**21
100%
Vihtavuori N160
<<locked>>
97%
56144
86%
**16
100%
[Vihtavuori N165]*
<<locked>>
97%
36100
56%
**34
93%
Vihtavuori N530
<<locked>>
84%
57769
89%
**80
100%
Vihtavuori N540
<<locked>>
90%
57725
89%
**74
100%
Vihtavuori N550 👍
<<locked>>
97%
56057
86%
**52
100%
Vihtavuori N555
<<locked>>
97%
38885
60%
**69
99%
Winchester 6.5 StaBALL
<<locked>>
97%
53621
82%
**74
100%
Winchester 748
<<locked>>
84%
57783
89%
**10
100%
Winchester 760 👍
<<locked>>
96%
58088
89%
**88
99%
Winchester StaBALL HD
<<locked>>
97%
31995
49%
**16
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
47355
73%
**78
100%
ADI AR 2208
<<locked>>
81%
40161
62%
**60
99%
[ADI AR 2209]*
<<locked>>
87%
32285
50%
**65
90%
Accurate 2015
<<locked>>
81%
53519
82%
**49
100%
Accurate 2200
<<locked>>
81%
49414
76%
**75
100%
Accurate 2495
<<locked>>
81%
48834
75%
**59
100%
Accurate 2520
<<locked>>
81%
49472
76%
**95
100%
Accurate 2700
<<locked>>
81%
38276
59%
**88
95%
[Accurate 3100]*
<<locked>>
83%
23569
36%
**91
90%
Accurate 4064
<<locked>>
81%
41176
63%
**80
100%
Accurate 4350
<<locked>>
81%
30414
47%
**59
96%
Alliant AR-Comp
<<locked>>
81%
50024
77%
**49
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
42960
66%
**18
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
39900
61%
**80
100%
Alliant Reloder-15
<<locked>>
81%
42844
66%
**29
100%
Alliant Reloder-16
<<locked>>
81%
30980
48%
**69
96%
Alliant Reloder-17
<<locked>>
81%
34374
53%
**70
99%
[Alliant Reloder-19]*
<<locked>>
85%
30937
48%
**49
90%
[Alliant Reloder-22]*
<<locked>>
90%
31024
48%
**91
90%
[Alliant Reloder-23]*
<<locked>>
81%
22394
34%
**75
93%
[Alliant Reloder-25]*
<<locked>>
90%
25846
40%
**64
90%
[Alliant Reloder-26]*
<<locked>>
82%
23743
37%
**50
90%
Baschieri & Pellagri 107
<<locked>>
81%
46267
71%
**88
100%
[Bofors RP15]*
<<locked>>
93%
31357
48%
**95
90%
Bofors RP3
<<locked>>
81%
39610
61%
**83
100%
[Bofors RP5]*
<<locked>>
90%
31024
48%
**91
90%
[Bofors RP7]*
<<locked>>
81%
35752
55%
**78
94%
Hodgdon BL-C2
<<locked>>
81%
49037
75%
**21
100%
Hodgdon Benchmark
<<locked>>
81%
51097
79%
**59
100%
Hodgdon CFE223
<<locked>>
81%
40756
63%
**42
99%
Hodgdon H322
<<locked>>
81%
52489
81%
**95
100%
Hodgdon H380
<<locked>>
81%
40321
62%
**90
98%
Hodgdon H414
<<locked>>
81%
35621
55%
**54
95%
[Hodgdon H4350]*
<<locked>>
81%
29979
46%
**86
91%
[Hodgdon H4831 SC]*
<<locked>>
94%
37637
58%
**57
90%
Hodgdon Hybrid 100V
<<locked>>
81%
28369
44%
**90
97%
Hodgdon LVR
<<locked>>
81%
33547
52%
**01
96%
[Hodgdon Superperformance]*
<<locked>>
81%
32024
49%
**95
92%
Hodgdon VARGET
<<locked>>
81%
39885
61%
**54
99%
IMR 3031
<<locked>>
81%
43497
67%
**13
100%
IMR 4064
<<locked>>
81%
39378
61%
**41
99%
IMR 4166 Enduron
<<locked>>
81%
39146
60%
**11
96%
[IMR 4350]*
<<locked>>
81%
31517
48%
**16
92%
IMR 4451 Enduron
<<locked>>
81%
37173
57%
**08
95%
IMR 4831
<<locked>>
81%
26818
41%
**64
95%
IMR 4895
<<locked>>
81%
43961
68%
**59
100%
[IMR 4955 Enduron]*
<<locked>>
92%
36114
56%
**01
90%
[IMR 7828 SSC]*
<<locked>>
94%
36869
57%
**83
90%
IMR 8208 XBR
<<locked>>
81%
49487
76%
**75
100%
Lovex D073.6
<<locked>>
81%
46528
72%
**59
100%
Lovex S060
<<locked>>
81%
47268
73%
**19
100%
Lovex S062
<<locked>>
81%
42293
65%
**90
100%
Lovex S065
<<locked>>
81%
34490
53%
**62
96%
[Lovex S070]*
<<locked>>
81%
32634
50%
**46
94%
[Lovex S071]*
<<locked>>
88%
23569
36%
**91
90%
Norma 201
<<locked>>
81%
46180
71%
**33
100%
Norma 202
<<locked>>
81%
46572
72%
**33
100%
Norma 203B
<<locked>>
81%
42366
65%
**26
100%
[Norma 204]*
<<locked>>
81%
31285
48%
**39
90%
[Norma MRP]*
<<locked>>
86%
28137
43%
**46
90%
Norma URP
<<locked>>
81%
30661
47%
**55
96%
Ramshot Big Game
<<locked>>
81%
41568
64%
**36
100%
[Ramshot Grand]*
<<locked>>
93%
36550
56%
**87
90%
[Ramshot Hunter]*
<<locked>>
81%
30124
46%
**42
93%
[Ramshot Magnum]*
<<locked>>
93%
31299
48%
**75
90%
Ramshot TAC
<<locked>>
81%
49255
76%
**92
99%
Ramshot Wild Boar
<<locked>>
81%
48907
75%
**05
100%
Ramshot X-Terminator
<<locked>>
81%
53055
82%
**15
100%
ReloadSwiss RS 50
<<locked>>
81%
40538
62%
**73
97%
ReloadSwiss RS 52
<<locked>>
81%
44947
69%
**15
100%
ReloadSwiss RS 60
<<locked>>
81%
36448
56%
**13
100%
ReloadSwiss RS 62
<<locked>>
81%
30124
46%
**72
96%
[ReloadSwiss RS 70]*
<<locked>>
81%
30269
47%
**72
94%
Rottweil R 901
<<locked>>
81%
50401
78%
**56
100%
Rottweil R 902
<<locked>>
81%
43990
68%
**93
100%
Rottweil R 903
<<locked>>
81%
37086
57%
**37
99%
[Rottweil R 904]*
<<locked>>
87%
34113
52%
**72
90%
[Rottweil R 905]*
<<locked>>
86%
30327
47%
**46
90%
[Rottweil R 907]*
<<locked>>
81%
35752
55%
**78
94%
SNPE Vectan SP 11
<<locked>>
81%
38130
59%
**80
99%
SNPE Vectan SP 7
<<locked>>
81%
47587
73%
**72
99%
SNPE Vectan SP 9
<<locked>>
81%
45397
70%
**52
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
47703
73%
**87
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
39914
61%
**85
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
33533
52%
**23
94%
Shooters World Long Rifle
<<locked>>
81%
34490
53%
**62
96%
Shooters World Match Rifle
<<locked>>
81%
46528
72%
**59
100%
Shooters World Precision
<<locked>>
81%
42293
65%
**90
100%
Somchem S321
<<locked>>
81%
53432
82%
**41
100%
Somchem S335
<<locked>>
81%
47007
72%
**83
100%
Somchem S341
<<locked>>
81%
47210
73%
**65
100%
Somchem S355
<<locked>>
81%
37913
58%
**44
99%
[Somchem S361]*
<<locked>>
89%
36927
57%
**08
90%
Somchem S365
<<locked>>
81%
27601
42%
**26
98%
[Somchem S385]*
<<locked>>
83%
27528
42%
**70
90%
Vihtavuori N130
<<locked>>
81%
52460
81%
**06
100%
Vihtavuori N133
<<locked>>
81%
45092
69%
**41
100%
Vihtavuori N135
<<locked>>
81%
37130
57%
**82
100%
Vihtavuori N140
<<locked>>
81%
43598
67%
**80
100%
Vihtavuori N150
<<locked>>
81%
32503
50%
**26
99%
Vihtavuori N160
<<locked>>
81%
33591
52%
**85
97%
[Vihtavuori N165]*
<<locked>>
90%
29428
45%
**96
90%
Vihtavuori N530
<<locked>>
81%
51967
80%
**15
100%
Vihtavuori N540
<<locked>>
81%
43120
66%
**00
100%
Vihtavuori N550
<<locked>>
81%
33837
52%
**18
97%
[Vihtavuori N555]*
<<locked>>
81%
23757
37%
**31
93%
Winchester 6.5 StaBALL
<<locked>>
81%
31894
49%
**42
98%
Winchester 748
<<locked>>
81%
52997
82%
**60
100%
Winchester 760
<<locked>>
81%
35621
55%
**54
95%
[Winchester StaBALL HD]*
<<locked>>
83%
20595
32%
**55
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.

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