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Load data for .338 Weatherby RPM + .338 | 300gr | Hornady HPBT

Recommended Powder(s): Hodgdon H414, Hodgdon LVR, ReloadSwiss RS 70, Vihtavuori N550, Winchester 760

.338 Weatherby RPM + .338 | 300gr | Hornady HPBT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 300gr | Hornady HPBT
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.717" | 43.6mm
Caliber:
.338 Weatherby RPM load data
Case Length (l3):
2.550" | 64.8mm
Cartridge Length (C.O.L.):
3.329" | 84.6mm
Seated Depth:
0.938" | 23.8mm
Shank Seated Depth:
0.698" | 17.7mm
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_B12029_C455
Last updated:
2025-12-31
Recommended Twist Rate:
1:11 - 1:10

Load data for 216 loads in caliber .338 Weatherby RPM with .338 | 300gr | Hornady HPBT bullet and 108 powders such as Hodgdon H414, Hodgdon LVR, ReloadSwiss RS 70, 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>>
86%
57667
89%
**47
100%
ADI AR 2208
<<locked>>
92%
58073
89%
**41
100%
ADI AR 2209
<<locked>>
97%
47108
72%
**92
97%
[ADI AR 2213]*
<<locked>>
97%
41684
64%
**23
93%
Accurate 2200
<<locked>>
85%
58102
89%
**31
100%
Accurate 2495
<<locked>>
85%
58450
90%
**98
100%
Accurate 2520
<<locked>>
84%
58102
89%
**28
100%
Accurate 2700
<<locked>>
92%
58146
89%
**15
99%
Accurate 3100
<<locked>>
97%
39784
61%
**73
98%
Accurate 4064
<<locked>>
90%
57450
88%
**15
100%
Accurate 4350
<<locked>>
97%
55434
85%
**87
100%
Alliant AR-Comp
<<locked>>
84%
57551
89%
**65
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
58247
90%
**57
100%
Alliant Reloder-15
<<locked>>
89%
58233
90%
**74
100%
Alliant Reloder-16
<<locked>>
97%
52837
81%
**87
100%
Alliant Reloder-17
<<locked>>
95%
58030
89%
**59
100%
Alliant Reloder-19
<<locked>>
97%
46137
71%
**85
97%
Alliant Reloder-22
<<locked>>
97%
40103
62%
**29
95%
Alliant Reloder-23
<<locked>>
97%
37724
58%
**93
100%
Alliant Reloder-25
<<locked>>
97%
33533
52%
**21
96%
Alliant Reloder-26
<<locked>>
97%
41771
64%
**28
99%
Baschieri & Pellagri 107
<<locked>>
86%
57508
88%
**70
100%
[Bofors RP15]*
<<locked>>
97%
37202
57%
**77
94%
Bofors RP3
<<locked>>
91%
58465
90%
**70
100%
Bofors RP5
<<locked>>
97%
40103
62%
**29
95%
Bofors RP7
<<locked>>
95%
57246
88%
**47
99%
Hodgdon BL-C2
<<locked>>
85%
58059
89%
**67
100%
Hodgdon Benchmark
<<locked>>
84%
57827
89%
**78
100%
Hodgdon CFE223
<<locked>>
89%
57580
89%
**06
100%
Hodgdon H380
<<locked>>
91%
57914
89%
**70
100%
Hodgdon H414 👍
<<locked>>
94%
58044
89%
**33
100%
Hodgdon H4350
<<locked>>
97%
50749
78%
**92
98%
[Hodgdon H4831]*
<<locked>>
97%
38798
60%
**34
92%
[Hodgdon H4831 SC]*
<<locked>>
97%
43671
67%
**16
94%
Hodgdon Hybrid 100V
<<locked>>
97%
49458
76%
**88
100%
Hodgdon LVR 👍
<<locked>>
96%
58030
89%
**10
100%
Hodgdon Superperformance
<<locked>>
97%
58363
90%
**65
100%
Hodgdon VARGET
<<locked>>
92%
57740
89%
**41
100%
IMR 3031
<<locked>>
89%
58073
89%
**24
100%
IMR 4064
<<locked>>
93%
58276
90%
**38
100%
IMR 4166 Enduron
<<locked>>
93%
58189
90%
**31
100%
IMR 4350
<<locked>>
97%
54157
83%
**31
99%
IMR 4451 Enduron
<<locked>>
94%
58059
89%
**57
100%
IMR 4831
<<locked>>
97%
46934
72%
**72
100%
IMR 4895
<<locked>>
88%
57624
89%
**74
100%
[IMR 4955 Enduron]*
<<locked>>
97%
43540
67%
**87
94%
[IMR 7828 SSC]*
<<locked>>
97%
42134
65%
**42
94%
IMR 8208 XBR
<<locked>>
85%
58204
90%
**21
100%
Lovex D073.6
<<locked>>
86%
58479
90%
**34
100%
Lovex S060
<<locked>>
86%
57899
89%
**95
100%
Lovex S062
<<locked>>
90%
57740
89%
**24
100%
Lovex S065
<<locked>>
97%
58175
90%
**57
100%
Lovex S070
<<locked>>
97%
56260
87%
**57
100%
Lovex S071
<<locked>>
96%
32793
50%
**55
96%
Norma 201
<<locked>>
87%
58276
90%
**18
100%
Norma 202
<<locked>>
87%
58030
89%
**05
100%
Norma 203B
<<locked>>
90%
58276
90%
**70
100%
Norma 204
<<locked>>
97%
54476
84%
**74
98%
Norma MRP
<<locked>>
97%
41756
64%
**85
97%
Norma URP
<<locked>>
97%
54404
84%
**77
100%
Ramshot Big Game
<<locked>>
89%
57856
89%
**87
100%
Ramshot Grand
<<locked>>
97%
44440
68%
**88
95%
Ramshot Hunter
<<locked>>
97%
52852
81%
**80
100%
Ramshot Magnum
<<locked>>
97%
38116
59%
**77
95%
Ramshot TAC
<<locked>>
85%
57725
89%
**47
100%
Ramshot Wild Boar
<<locked>>
85%
57421
88%
**54
100%
ReloadSwiss RS 50
<<locked>>
91%
58392
90%
**64
100%
ReloadSwiss RS 52
<<locked>>
87%
58001
89%
**20
100%
ReloadSwiss RS 60
<<locked>>
93%
57798
89%
**49
100%
ReloadSwiss RS 62
<<locked>>
97%
54462
84%
**03
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
54288
84%
**33
100%
[ReloadSwiss RS 76]*
<<locked>>
97%
31923
49%
**05
92%
Rottweil R 901
<<locked>>
85%
58291
90%
**85
100%
Rottweil R 902
<<locked>>
89%
58436
90%
**15
100%
Rottweil R 903
<<locked>>
93%
57798
89%
**57
100%
Rottweil R 904
<<locked>>
97%
48718
75%
**69
96%
Rottweil R 905
<<locked>>
97%
44846
69%
**69
97%
Rottweil R 907
<<locked>>
95%
57246
88%
**47
99%
SNPE Vectan SP 11
<<locked>>
92%
57595
89%
**90
100%
SNPE Vectan SP 7
<<locked>>
86%
58291
90%
**51
100%
SNPE Vectan SP 9
<<locked>>
87%
58363
90%
**54
100%
SNPE Vectan Tubal 3000
<<locked>>
86%
58001
89%
**39
100%
SNPE Vectan Tubal 5000
<<locked>>
92%
57827
89%
**39
100%
SNPE Vectan Tubal 7000
<<locked>>
96%
57682
89%
**18
100%
Shooters World Long Rifle
<<locked>>
97%
58175
90%
**57
100%
Shooters World Match Rifle
<<locked>>
86%
58479
90%
**34
100%
Shooters World Precision
<<locked>>
90%
57740
89%
**24
100%
Somchem S335
<<locked>>
87%
58117
89%
**52
100%
Somchem S341
<<locked>>
86%
57827
89%
**38
100%
Somchem S355
<<locked>>
93%
58146
89%
**57
100%
Somchem S361
<<locked>>
97%
49908
77%
**62
95%
Somchem S365
<<locked>>
97%
49052
75%
**38
100%
Somchem S385
<<locked>>
97%
45179
70%
**46
98%
Vihtavuori N130
<<locked>>
83%
58479
90%
**13
100%
Vihtavuori N133
<<locked>>
89%
58479
90%
**29
100%
Vihtavuori N135
<<locked>>
94%
57899
89%
**75
100%
Vihtavuori N140
<<locked>>
89%
58189
90%
**88
100%
Vihtavuori N150
<<locked>>
97%
55056
85%
**88
100%
Vihtavuori N160
<<locked>>
96%
57957
89%
**77
100%
Vihtavuori N165
<<locked>>
97%
37985
58%
**24
95%
Vihtavuori N530
<<locked>>
83%
58160
89%
**28
100%
Vihtavuori N540
<<locked>>
89%
58378
90%
**21
100%
Vihtavuori N550 👍
<<locked>>
96%
58030
89%
**16
100%
Vihtavuori N555
<<locked>>
97%
41481
64%
**49
100%
[Vihtavuori N560]*
<<locked>>
97%
40190
62%
**36
93%
Winchester 6.5 StaBALL
<<locked>>
97%
56318
87%
**44
100%
Winchester 760 👍
<<locked>>
94%
58044
89%
**33
100%
Winchester StaBALL HD
<<locked>>
97%
33721
52%
**13
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
49617
76%
**52
100%
ADI AR 2208
<<locked>>
81%
42105
65%
**37
100%
[ADI AR 2209]*
<<locked>>
82%
29631
46%
**67
90%
[ADI AR 2213]*
<<locked>>
91%
34447
53%
**82
90%
Accurate 2200
<<locked>>
81%
51488
79%
**56
100%
Accurate 2495
<<locked>>
81%
51576
79%
**29
100%
Accurate 2520
<<locked>>
81%
52083
80%
**65
100%
Accurate 2700
<<locked>>
81%
39943
61%
**75
96%
[Accurate 3100]*
<<locked>>
81%
23482
36%
**45
91%
Accurate 4064
<<locked>>
81%
43555
67%
**57
100%
Accurate 4350
<<locked>>
81%
32460
50%
**52
98%
Alliant AR-Comp
<<locked>>
81%
52750
81%
**16
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
42003
65%
**60
100%
Alliant Reloder-15
<<locked>>
81%
45049
69%
**06
100%
Alliant Reloder-16
<<locked>>
81%
32590
50%
**59
98%
Alliant Reloder-17
<<locked>>
81%
36245
56%
**57
100%
[Alliant Reloder-19]*
<<locked>>
82%
28964
45%
**57
90%
[Alliant Reloder-22]*
<<locked>>
86%
29080
45%
**00
90%
Alliant Reloder-23
<<locked>>
81%
23612
36%
**72
95%
[Alliant Reloder-25]*
<<locked>>
85%
23931
37%
**75
90%
[Alliant Reloder-26]*
<<locked>>
81%
24642
38%
**41
92%
Baschieri & Pellagri 107
<<locked>>
81%
48559
75%
**62
100%
[Bofors RP15]*
<<locked>>
89%
29443
45%
**06
90%
Bofors RP3
<<locked>>
81%
41713
64%
**64
100%
[Bofors RP5]*
<<locked>>
86%
29080
45%
**00
90%
Bofors RP7
<<locked>>
81%
37405
58%
**62
96%
Hodgdon BL-C2
<<locked>>
81%
51532
79%
**98
100%
Hodgdon Benchmark
<<locked>>
81%
53243
82%
**26
100%
Hodgdon CFE223
<<locked>>
81%
43120
66%
**23
100%
Hodgdon H380
<<locked>>
81%
42438
65%
**70
99%
Hodgdon H414
<<locked>>
81%
37608
58%
**44
96%
[Hodgdon H4350]*
<<locked>>
81%
31517
48%
**73
93%
[Hodgdon H4831]*
<<locked>>
93%
35056
54%
**69
90%
[Hodgdon H4831 SC]*
<<locked>>
90%
35056
54%
**69
90%
Hodgdon Hybrid 100V
<<locked>>
81%
29994
46%
**77
98%
Hodgdon LVR
<<locked>>
81%
35433
55%
**91
98%
[Hodgdon Superperformance]*
<<locked>>
81%
33649
52%
**85
94%
Hodgdon VARGET
<<locked>>
81%
41814
64%
**34
100%
IMR 3031
<<locked>>
81%
45818
70%
**83
100%
IMR 4064
<<locked>>
81%
41336
64%
**21
100%
IMR 4166 Enduron
<<locked>>
81%
40915
63%
**95
97%
[IMR 4350]*
<<locked>>
81%
33141
51%
**06
94%
IMR 4451 Enduron
<<locked>>
81%
38928
60%
**91
97%
IMR 4831
<<locked>>
81%
28514
44%
**54
96%
IMR 4895
<<locked>>
81%
46224
71%
**36
100%
[IMR 4955 Enduron]*
<<locked>>
88%
33939
52%
**16
90%
[IMR 7828 SSC]*
<<locked>>
90%
34345
53%
**95
90%
IMR 8208 XBR
<<locked>>
81%
51750
80%
**49
100%
Lovex D073.6
<<locked>>
81%
49037
75%
**29
100%
Lovex S060
<<locked>>
81%
48979
75%
**90
100%
Lovex S062
<<locked>>
81%
44106
68%
**60
100%
Lovex S065
<<locked>>
81%
36274
56%
**49
97%
Lovex S070
<<locked>>
81%
34403
53%
**36
96%
[Lovex S071]*
<<locked>>
84%
22075
34%
**09
90%
Norma 201
<<locked>>
81%
48399
74%
**06
100%
Norma 202
<<locked>>
81%
48863
75%
**06
100%
Norma 203B
<<locked>>
81%
44266
68%
**00
100%
[Norma 204]*
<<locked>>
81%
32300
50%
**19
92%
[Norma MRP]*
<<locked>>
82%
26513
41%
**60
90%
Norma URP
<<locked>>
81%
32460
50%
**46
98%
Ramshot Big Game
<<locked>>
81%
43845
67%
**13
100%
[Ramshot Grand]*
<<locked>>
89%
33576
52%
**88
90%
Ramshot Hunter
<<locked>>
81%
31734
49%
**36
95%
[Ramshot Magnum]*
<<locked>>
89%
29254
45%
**90
90%
Ramshot TAC
<<locked>>
81%
51430
79%
**72
100%
Ramshot Wild Boar
<<locked>>
81%
51242
79%
**82
100%
ReloadSwiss RS 50
<<locked>>
81%
42525
65%
**54
98%
ReloadSwiss RS 52
<<locked>>
81%
47601
73%
**95
100%
ReloadSwiss RS 60
<<locked>>
81%
38421
59%
**96
100%
ReloadSwiss RS 62
<<locked>>
81%
31966
49%
**62
97%
ReloadSwiss RS 70
<<locked>>
81%
31821
49%
**65
96%
[ReloadSwiss RS 76]*
<<locked>>
94%
29312
45%
**36
90%
Rottweil R 901
<<locked>>
81%
52721
81%
**23
100%
Rottweil R 902
<<locked>>
81%
46122
71%
**67
100%
Rottweil R 903
<<locked>>
81%
39233
60%
**21
100%
[Rottweil R 904]*
<<locked>>
83%
31633
49%
**80
90%
[Rottweil R 905]*
<<locked>>
82%
27978
43%
**47
90%
Rottweil R 907
<<locked>>
81%
37405
58%
**62
96%
SNPE Vectan SP 11
<<locked>>
81%
40248
62%
**64
100%
SNPE Vectan SP 7
<<locked>>
81%
49908
77%
**49
100%
SNPE Vectan SP 9
<<locked>>
81%
47572
73%
**26
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
49501
76%
**51
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
41263
63%
**52
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
35259
54%
**06
96%
Shooters World Long Rifle
<<locked>>
81%
36274
56%
**49
97%
Shooters World Match Rifle
<<locked>>
81%
49037
75%
**29
100%
Shooters World Precision
<<locked>>
81%
44106
68%
**60
100%
Somchem S335
<<locked>>
81%
49124
76%
**54
100%
Somchem S341
<<locked>>
81%
49545
76%
**39
100%
Somchem S355
<<locked>>
81%
39943
61%
**24
100%
[Somchem S361]*
<<locked>>
86%
34563
53%
**23
90%
Somchem S365
<<locked>>
81%
29254
45%
**16
99%
[Somchem S385]*
<<locked>>
81%
27267
42%
**21
91%
Vihtavuori N130
<<locked>>
81%
54708
84%
**73
100%
Vihtavuori N133
<<locked>>
81%
46876
72%
**05
100%
Vihtavuori N135
<<locked>>
81%
39117
60%
**55
100%
Vihtavuori N140
<<locked>>
81%
45774
70%
**51
100%
Vihtavuori N150
<<locked>>
81%
34214
53%
**06
100%
Vihtavuori N160
<<locked>>
81%
35505
55%
**72
98%
[Vihtavuori N165]*
<<locked>>
86%
27543
42%
**11
90%
Vihtavuori N530
<<locked>>
81%
54375
84%
**85
100%
Vihtavuori N540
<<locked>>
81%
45252
70%
**70
100%
Vihtavuori N550
<<locked>>
81%
35810
55%
**08
98%
Vihtavuori N555
<<locked>>
81%
25092
39%
**27
95%
[Vihtavuori N560]*
<<locked>>
91%
33953
52%
**14
90%
Winchester 6.5 StaBALL
<<locked>>
81%
33446
51%
**26
99%
Winchester 760
<<locked>>
81%
37608
58%
**44
96%
[Winchester StaBALL HD]*
<<locked>>
81%
20639
32%
**26
92%

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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