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Load data for .338 Weatherby RPM + .338 | 250gr | Nosler Partition RN

Recommended Powder(s): Accurate 4350, Hodgdon H380, Hodgdon LVR, ReloadSwiss RS 50, ReloadSwiss RS 62

.338 Weatherby RPM + .338 | 250gr | Nosler Partition RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 250gr | Nosler Partition RN
Manufacturer SKU:
16338
Bullet Weight:
250gr | 16.2g
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_B4146_C455
Last updated:
2026-04-24

Load data for 224 loads in caliber .338 Weatherby RPM with .338 | 250gr | Nosler Partition RN bullet and 112 powders such as Accurate 4350, Hodgdon H380, Hodgdon LVR, ReloadSwiss RS 50, ReloadSwiss RS 62. 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>>
87%
57783
89%
**23
100%
ADI AR 2208
<<locked>>
93%
57696
89%
**10
100%
ADI AR 2209
<<locked>>
97%
45078
69%
**95
95%
ADI Benchmark 8208
<<locked>>
86%
58479
90%
**93
100%
Accurate 2015
<<locked>>
84%
58059
89%
**11
100%
Accurate 2200
<<locked>>
86%
57856
89%
**93
100%
Accurate 2495
<<locked>>
86%
58030
89%
**67
100%
Accurate 2520
<<locked>>
85%
57841
89%
**00
100%
Accurate 2700
<<locked>>
94%
58320
90%
**70
98%
Accurate 3100
<<locked>>
97%
37797
58%
**74
96%
Accurate 4064
<<locked>>
91%
57754
89%
**97
100%
Accurate 4350 👍
<<locked>>
97%
52895
81%
**20
100%
Alliant AR-Comp
<<locked>>
85%
57769
89%
**44
100%
Alliant Power Pro 2000-MR
<<locked>>
90%
58436
90%
**44
100%
Alliant Reloder- TS 15.5
<<locked>>
93%
58233
90%
**36
100%
Alliant Reloder-15
<<locked>>
91%
58421
90%
**49
100%
Alliant Reloder-16
<<locked>>
97%
50328
77%
**16
100%
Alliant Reloder-17
<<locked>>
96%
58146
89%
**38
100%
Alliant Reloder-19
<<locked>>
97%
44483
68%
**02
95%
[Alliant Reloder-22]*
<<locked>>
97%
38435
59%
**26
93%
Alliant Reloder-23
<<locked>>
97%
36477
56%
**03
99%
[Alliant Reloder-25]*
<<locked>>
97%
32126
49%
**98
93%
Alliant Reloder-26
<<locked>>
97%
39769
61%
**31
98%
Baschieri & Pellagri 107
<<locked>>
87%
58059
89%
**46
100%
Bofors RP3
<<locked>>
93%
58276
90%
**39
100%
[Bofors RP5]*
<<locked>>
97%
38435
59%
**26
93%
Bofors RP7
<<locked>>
96%
57740
89%
**16
98%
Hodgdon BL-C2
<<locked>>
85%
57696
89%
**36
100%
Hodgdon Benchmark
<<locked>>
85%
57856
89%
**48
100%
Hodgdon CFE223
<<locked>>
83%
58218
90%
**92
100%
Hodgdon H322
<<locked>>
84%
58436
90%
**70
100%
Hodgdon H380 👍
<<locked>>
92%
58305
90%
**46
100%
Hodgdon H414
<<locked>>
95%
58262
90%
**02
99%
Hodgdon H4350
<<locked>>
97%
54389
84%
**07
97%
Hodgdon H4895
<<locked>>
87%
58349
90%
**30
100%
Hodgdon Hybrid 100V
<<locked>>
97%
47137
73%
**18
100%
Hodgdon LVR 👍
<<locked>>
97%
56739
87%
**66
100%
Hodgdon Superperformance
<<locked>>
97%
56246
87%
**05
99%
Hodgdon VARGET
<<locked>>
91%
58175
90%
**16
100%
Hodgdon LEVERevolution
<<locked>>
92%
58494
90%
**69
100%
IMR 3031
<<locked>>
90%
58247
90%
**00
100%
IMR 4064
<<locked>>
93%
57740
89%
**00
100%
IMR 4166 Enduron
<<locked>>
94%
58349
90%
**97
99%
IMR 4350
<<locked>>
97%
52054
80%
**61
98%
IMR 4451 Enduron
<<locked>>
95%
57754
89%
**16
99%
IMR 4831
<<locked>>
97%
44541
69%
**88
99%
IMR 4895
<<locked>>
90%
58131
89%
**52
100%
[IMR 4955 Enduron]*
<<locked>>
97%
42453
65%
**00
92%
IMR 8208 XBR
<<locked>>
86%
58479
90%
**93
100%
Lovex D073.6
<<locked>>
87%
57841
89%
**00
100%
Lovex S060
<<locked>>
88%
58494
90%
**67
100%
Lovex S062
<<locked>>
91%
57464
88%
**93
100%
Lovex S065
<<locked>>
97%
56579
87%
**00
99%
Lovex S070
<<locked>>
97%
53824
83%
**90
99%
[Lovex S071]*
<<locked>>
97%
31473
48%
**42
93%
Norma 201
<<locked>>
88%
57856
89%
**84
100%
Norma 202
<<locked>>
88%
58233
90%
**84
100%
Norma 203B
<<locked>>
91%
58465
90%
**46
100%
Norma 204
<<locked>>
97%
52721
81%
**07
97%
Norma MRP
<<locked>>
97%
40451
62%
**95
95%
Norma URP
<<locked>>
97%
51808
80%
**07
100%
Ramshot Big Game
<<locked>>
91%
58073
89%
**59
100%
[Ramshot Grand]*
<<locked>>
97%
43018
66%
**98
92%
Ramshot Hunter
<<locked>>
97%
50865
78%
**13
99%
[Ramshot Magnum]*
<<locked>>
97%
36680
56%
**60
92%
Ramshot TAC
<<locked>>
86%
58189
90%
**16
100%
Ramshot Wild Boar
<<locked>>
86%
58044
89%
**30
100%
Ramshot X-Terminator
<<locked>>
83%
57711
89%
**84
100%
ReloadSwiss RS 14
<<locked>>
97%
34809
54%
**99
100%
ReloadSwiss RS 50 👍
<<locked>>
92%
58102
89%
**26
99%
ReloadSwiss RS 52
<<locked>>
88%
57899
89%
**95
100%
ReloadSwiss RS 60
<<locked>>
95%
58175
89%
**38
100%
ReloadSwiss RS 62 👍
<<locked>>
97%
51996
80%
**36
100%
ReloadSwiss RS 70
<<locked>>
97%
52228
80%
**72
100%
Rottweil R 901
<<locked>>
86%
58349
90%
**57
100%
Rottweil R 902
<<locked>>
90%
58320
90%
**84
100%
Rottweil R 903
<<locked>>
94%
57682
89%
**33
100%
[Rottweil R 904]*
<<locked>>
97%
46934
72%
**82
94%
[Rottweil R 905]*
<<locked>>
97%
42583
66%
**72
94%
Rottweil R 907
<<locked>>
96%
57740
89%
**16
98%
SNPE Vectan SP 11
<<locked>>
94%
58291
90%
**69
100%
SNPE Vectan SP 7
<<locked>>
87%
57856
89%
**10
100%
SNPE Vectan SP 9
<<locked>>
88%
58320
90%
**26
100%
SNPE Vectan Tubal 3000
<<locked>>
87%
57841
89%
**05
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
58465
90%
**11
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
57261
88%
**67
99%
Shooters World Long Rifle
<<locked>>
97%
56579
87%
**00
99%
Shooters World Match Rifle
<<locked>>
87%
57841
89%
**00
100%
Shooters World Precision
<<locked>>
91%
57464
88%
**93
100%
Somchem S321
<<locked>>
83%
58218
90%
**07
100%
Somchem S335
<<locked>>
87%
57711
89%
**11
100%
Somchem S341
<<locked>>
87%
58233
90%
**13
100%
Somchem S355
<<locked>>
94%
58175
90%
**26
100%
[Somchem S361]*
<<locked>>
97%
48080
74%
**79
93%
Somchem S365
<<locked>>
97%
46499
72%
**64
100%
Somchem S385
<<locked>>
97%
43526
67%
**65
96%
Vihtavuori N130
<<locked>>
83%
58160
89%
**75
100%
Vihtavuori N133
<<locked>>
87%
58131
89%
**88
100%
Vihtavuori N135
<<locked>>
92%
58407
90%
**51
100%
Vihtavuori N140
<<locked>>
89%
57899
89%
**54
100%
Vihtavuori N150
<<locked>>
95%
57682
89%
**84
100%
Vihtavuori N160
<<locked>>
97%
54665
84%
**10
100%
[Vihtavuori N165]*
<<locked>>
97%
37797
58%
**44
93%
Vihtavuori N530
<<locked>>
86%
58421
90%
**90
100%
Vihtavuori N540
<<locked>>
91%
58146
89%
**77
100%
Vihtavuori N550
<<locked>>
97%
53374
82%
**13
100%
Vihtavuori N555
<<locked>>
97%
39726
61%
**65
99%
Winchester 6.5 StaBALL
<<locked>>
97%
54505
84%
**87
100%
Winchester 748
<<locked>>
83%
58175
89%
**30
100%
Winchester 760
<<locked>>
95%
58262
90%
**02
99%
Winchester StaBALL HD
<<locked>>
97%
32532
50%
**03
99%
Winchester Supreme 780
<<locked>>
97%
44846
69%
**72
95%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
47485
73%
**82
100%
ADI AR 2208
<<locked>>
81%
40567
62%
**51
99%
[ADI AR 2209]*
<<locked>>
88%
34214
53%
**82
90%
ADI Benchmark 8208
<<locked>>
81%
49617
76%
**79
100%
Accurate 2015
<<locked>>
81%
53882
83%
**59
100%
Accurate 2200
<<locked>>
81%
49676
76%
**82
99%
Accurate 2495
<<locked>>
81%
49414
76%
**69
100%
Accurate 2520
<<locked>>
81%
50082
77%
**02
100%
[Accurate 2700]*
<<locked>>
81%
38798
60%
**78
94%
[Accurate 3100]*
<<locked>>
85%
25585
39%
**98
90%
Accurate 4064
<<locked>>
81%
41684
64%
**77
100%
Accurate 4350
<<locked>>
81%
30516
47%
**29
95%
Alliant AR-Comp
<<locked>>
81%
50662
78%
**62
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
43279
67%
**18
99%
Alliant Reloder- TS 15.5
<<locked>>
81%
40219
62%
**74
100%
Alliant Reloder-15
<<locked>>
81%
43120
66%
**26
99%
Alliant Reloder-16
<<locked>>
81%
31343
48%
**52
96%
Alliant Reloder-17
<<locked>>
81%
34780
54%
**57
99%
[Alliant Reloder-19]*
<<locked>>
88%
33518
52%
**75
90%
[Alliant Reloder-22]*
<<locked>>
92%
33112
51%
**08
90%
[Alliant Reloder-23]*
<<locked>>
81%
22640
35%
**26
92%
[Alliant Reloder-25]*
<<locked>>
92%
27847
43%
**77
90%
[Alliant Reloder-26]*
<<locked>>
83%
25367
39%
**57
90%
Baschieri & Pellagri 107
<<locked>>
81%
46934
72%
**95
99%
Bofors RP3
<<locked>>
81%
39929
61%
**77
100%
[Bofors RP5]*
<<locked>>
92%
33112
51%
**08
90%
[Bofors RP7]*
<<locked>>
81%
36056
55%
**59
93%
Hodgdon BL-C2
<<locked>>
81%
49734
77%
**31
100%
Hodgdon Benchmark
<<locked>>
81%
51416
79%
**65
100%
Hodgdon CFE223
<<locked>>
81%
53824
83%
**36
100%
Hodgdon H322
<<locked>>
81%
53156
82%
**08
100%
Hodgdon H380
<<locked>>
81%
40944
63%
**83
98%
[Hodgdon H414]*
<<locked>>
81%
36013
55%
**41
94%
[Hodgdon H4350]*
<<locked>>
81%
33373
51%
**36
91%
Hodgdon H4895
<<locked>>
81%
47921
74%
**85
100%
Hodgdon Hybrid 100V
<<locked>>
81%
28848
44%
**67
97%
Hodgdon LVR
<<locked>>
81%
33779
52%
**82
96%
[Hodgdon Superperformance]*
<<locked>>
81%
32387
50%
**72
91%
Hodgdon VARGET
<<locked>>
81%
42902
66%
**93
100%
Hodgdon LEVERevolution
<<locked>>
81%
41684
64%
**29
100%
IMR 3031
<<locked>>
81%
44208
68%
**20
100%
IMR 4064
<<locked>>
81%
39668
61%
**31
99%
IMR 4166 Enduron
<<locked>>
81%
39407
61%
**01
95%
[IMR 4350]*
<<locked>>
81%
31995
49%
**00
91%
[IMR 4451 Enduron]*
<<locked>>
81%
37362
57%
**88
94%
[IMR 4831]*
<<locked>>
81%
27050
42%
**28
94%
IMR 4895
<<locked>>
81%
44106
68%
**49
100%
[IMR 4955 Enduron]*
<<locked>>
94%
38957
60%
**31
90%
IMR 8208 XBR
<<locked>>
81%
49617
76%
**79
100%
Lovex D073.6
<<locked>>
81%
47036
72%
**62
100%
Lovex S060
<<locked>>
81%
47384
73%
**23
100%
Lovex S062
<<locked>>
81%
42279
65%
**77
100%
Lovex S065
<<locked>>
81%
34867
54%
**46
95%
[Lovex S070]*
<<locked>>
81%
33054
51%
**23
93%
[Lovex S071]*
<<locked>>
90%
25585
39%
**98
90%
Norma 201
<<locked>>
81%
46644
72%
**39
100%
Norma 202
<<locked>>
81%
46920
72%
**39
100%
Norma 203B
<<locked>>
81%
42351
65%
**13
99%
[Norma 204]*
<<locked>>
83%
33649
52%
**59
90%
[Norma MRP]*
<<locked>>
88%
30255
47%
**65
90%
Norma URP
<<locked>>
81%
31169
48%
**36
95%
Ramshot Big Game
<<locked>>
81%
42192
65%
**33
99%
[Ramshot Grand]*
<<locked>>
94%
39102
60%
**16
90%
[Ramshot Hunter]*
<<locked>>
81%
30443
47%
**16
92%
[Ramshot Magnum]*
<<locked>>
94%
33257
51%
**88
90%
Ramshot TAC
<<locked>>
81%
49603
76%
**95
99%
Ramshot Wild Boar
<<locked>>
81%
49182
76%
**11
100%
Ramshot X-Terminator
<<locked>>
81%
53606
82%
**31
100%
ReloadSwiss RS 14
<<locked>>
94%
33431
51%
**76
100%
ReloadSwiss RS 50
<<locked>>
81%
41162
63%
**67
96%
ReloadSwiss RS 52
<<locked>>
81%
45469
70%
**25
100%
ReloadSwiss RS 60
<<locked>>
81%
36999
57%
**13
100%
ReloadSwiss RS 62
<<locked>>
81%
30443
47%
**46
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
30589
47%
**42
93%
Rottweil R 901
<<locked>>
81%
50894
78%
**65
100%
Rottweil R 902
<<locked>>
81%
44309
68%
**90
100%
Rottweil R 903
<<locked>>
81%
37579
58%
**31
99%
[Rottweil R 904]*
<<locked>>
89%
36550
56%
**95
90%
[Rottweil R 905]*
<<locked>>
88%
32227
50%
**56
90%
[Rottweil R 907]*
<<locked>>
81%
36056
55%
**59
93%
SNPE Vectan SP 11
<<locked>>
81%
38551
59%
**74
99%
SNPE Vectan SP 7
<<locked>>
81%
48167
74%
**79
99%
SNPE Vectan SP 9
<<locked>>
81%
45847
71%
**52
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
47964
74%
**83
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
39885
61%
**72
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
33881
52%
**93
93%
Shooters World Long Rifle
<<locked>>
81%
34867
54%
**46
95%
Shooters World Match Rifle
<<locked>>
81%
47036
72%
**62
100%
Shooters World Precision
<<locked>>
81%
42279
65%
**77
100%
Somchem S321
<<locked>>
81%
54157
83%
**54
100%
Somchem S335
<<locked>>
81%
47456
73%
**83
100%
Somchem S341
<<locked>>
81%
47892
74%
**72
100%
Somchem S355
<<locked>>
81%
38334
59%
**31
99%
[Somchem S361]*
<<locked>>
91%
39102
60%
**24
90%
Somchem S365
<<locked>>
81%
27978
43%
**00
98%
[Somchem S385]*
<<locked>>
85%
29762
46%
**87
90%
Vihtavuori N130
<<locked>>
81%
53998
83%
**26
100%
Vihtavuori N133
<<locked>>
81%
48240
74%
**74
100%
Vihtavuori N135
<<locked>>
81%
41742
64%
**38
100%
Vihtavuori N140
<<locked>>
81%
44556
69%
**83
100%
Vihtavuori N150
<<locked>>
81%
36593
56%
**78
100%
Vihtavuori N160
<<locked>>
81%
32460
50%
**36
96%
[Vihtavuori N165]*
<<locked>>
91%
31415
48%
**06
90%
Vihtavuori N530
<<locked>>
81%
50096
77%
**85
100%
Vihtavuori N540
<<locked>>
81%
42946
66%
**80
100%
Vihtavuori N550
<<locked>>
81%
32053
49%
**39
95%
[Vihtavuori N555]*
<<locked>>
81%
24018
37%
**98
92%
Winchester 6.5 StaBALL
<<locked>>
81%
32343
50%
**23
98%
Winchester 748
<<locked>>
81%
53766
83%
**74
100%
[Winchester 760]*
<<locked>>
81%
36013
55%
**41
94%
[Winchester StaBALL HD]*
<<locked>>
85%
22191
34%
**52
90%
[Winchester Supreme 780]*
<<locked>>
88%
33837
52%
**59
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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