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Load data for .338 Rem. Ultra Mag + .338 | 250gr | Woodleigh RN SN

Recommended Powder(s):

.338 Rem. Ultra Mag + .338 | 250gr | Woodleigh RN SN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 250gr | Woodleigh RN SN
Manufacturer SKU:
56
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.226" | 31.1mm
Caliber:
.338 Rem. Ultra Mag load data
Case Length (l3):
2.760" | 70.1mm
Cartridge Length (C.O.L.):
3.546" | 90.1mm
Seated Depth:
0.440" | 11.2mm
Shank Seated Depth:
0.440" | 11.2mm
Case Capacity:
110.0 Grains of Water | 7.14 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B12105_C459
Last updated:
2026-01-20

Load data for 0 loads in caliber .338 Rem. Ultra Mag with .338 | 250gr | Woodleigh RN SN bullet and 0 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 2209
<<locked>>
91%
57348
90%
**87
100%
ADI AR 2213
<<locked>>
94%
57348
90%
**30
99%
ADI AR 2217
<<locked>>
97%
46122
72%
**52
98%
ADI AR 2225
<<locked>>
97%
40973
64%
**03
99%
Accurate 3100
<<locked>>
94%
56594
89%
**18
100%
Accurate 4350
<<locked>>
85%
57058
89%
**44
100%
Accurate MAGPRO
<<locked>>
94%
57334
90%
**40
98%
Alliant Reloder-16
<<locked>>
87%
56927
89%
**74
100%
Alliant Reloder-19
<<locked>>
91%
57435
90%
**87
100%
Alliant Reloder-22 👍
<<locked>>
94%
57421
90%
**20
100%
Alliant Reloder-23
<<locked>>
95%
57276
90%
**74
100%
Alliant Reloder-25
<<locked>>
97%
51793
81%
**64
100%
Alliant Reloder-26
<<locked>>
91%
56797
89%
**40
100%
[Alliant Reloder-33]*
<<locked>>
97%
42235
66%
**30
93%
Baschieri & Pellagri 109
<<locked>>
95%
57174
90%
**67
97%
Bofors RP15 👍
<<locked>>
97%
57101
89%
**20
100%
Bofors RP30
<<locked>>
97%
48008
75%
**05
99%
Bofors RP5
<<locked>>
94%
57421
90%
**20
100%
Bofors RP7
<<locked>>
84%
56913
89%
**12
100%
Hodgdon H1000
<<locked>>
97%
46122
72%
**52
98%
Hodgdon H4350
<<locked>>
89%
57246
90%
**28
100%
Hodgdon H4831
<<locked>>
96%
57087
89%
**67
99%
Hodgdon H4831 SC
<<locked>>
93%
57377
90%
**67
99%
Hodgdon Hybrid 100V
<<locked>>
89%
56956
89%
**98
100%
Hodgdon LVR
<<locked>>
84%
56840
89%
**38
100%
Hodgdon Retumbo
<<locked>>
97%
40973
64%
**03
99%
Hodgdon Superperformance
<<locked>>
84%
56971
89%
**00
100%
IMR 4350
<<locked>>
87%
57305
90%
**28
100%
IMR 4451 Enduron
<<locked>>
83%
57043
89%
**15
100%
IMR 4831
<<locked>>
91%
57392
90%
**31
100%
IMR 4955 Enduron
<<locked>>
94%
57246
90%
**38
99%
IMR 7828 SSC 👍
<<locked>>
93%
57000
89%
**26
99%
[IMR 7977 Enduron]*
<<locked>>
97%
54317
85%
**52
93%
IMR 8133 Enduron
<<locked>>
97%
36970
58%
**18
95%
Lovex S065
<<locked>>
85%
56855
89%
**98
100%
Lovex S070
<<locked>>
86%
57377
90%
**25
100%
Lovex S071
<<locked>>
97%
53026
83%
**72
100%
Norma 204
<<locked>>
87%
57116
89%
**67
100%
Norma 217
<<locked>>
97%
36912
58%
**41
98%
Norma MRP 👍
<<locked>>
92%
57406
90%
**46
100%
Norma URP
<<locked>>
86%
56884
89%
**41
100%
Ramshot Grand 👍
<<locked>>
91%
56971
89%
**36
100%
Ramshot Hunter
<<locked>>
87%
57203
90%
**67
100%
Ramshot Magnum
<<locked>>
94%
57087
89%
**00
100%
ReloadSwiss RS 62
<<locked>>
85%
56681
89%
**54
100%
ReloadSwiss RS 70
<<locked>>
86%
57043
89%
**10
100%
ReloadSwiss RS 76
<<locked>>
97%
51256
80%
**23
100%
ReloadSwiss RS 80
<<locked>>
97%
46064
72%
**05
97%
Rottweil R 904
<<locked>>
90%
56840
89%
**38
99%
Rottweil R 905
<<locked>>
91%
57058
89%
**80
100%
Rottweil R 907
<<locked>>
84%
56913
89%
**12
100%
SNPE Vectan Tubal 7000
<<locked>>
85%
56869
89%
**72
100%
Shooters World Long Rifle
<<locked>>
85%
56855
89%
**98
100%
Somchem S361
<<locked>>
90%
57319
90%
**15
99%
Somchem S365
<<locked>>
88%
57305
90%
**44
100%
Somchem S385
<<locked>>
91%
57261
90%
**48
100%
Vihtavuori N150
<<locked>>
86%
56956
89%
**49
100%
Vihtavuori N160
<<locked>>
84%
57087
89%
**08
100%
Vihtavuori N165
<<locked>>
96%
56869
89%
**31
100%
[Vihtavuori N170]*
<<locked>>
97%
43279
68%
**31
91%
Vihtavuori N550
<<locked>>
84%
57174
90%
**44
100%
Vihtavuori N555
<<locked>>
92%
56971
89%
**64
100%
Vihtavuori N560
<<locked>>
94%
57101
89%
**40
99%
Vihtavuori N565
<<locked>>
97%
54636
86%
**90
99%
Vihtavuori N568
<<locked>>
97%
47964
75%
**31
97%
[Vihtavuori N570]*
<<locked>>
97%
45614
71%
**08
94%
Winchester 6.5 StaBALL
<<locked>>
86%
57406
90%
**82
100%
Winchester StaBALL HD
<<locked>>
96%
57319
90%
**72
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
41002
64%
**28
98%
[ADI AR 2213]*
<<locked>>
81%
36564
57%
**59
94%
[ADI AR 2217]*
<<locked>>
83%
28848
45%
**59
90%
[ADI AR 2225]*
<<locked>>
81%
24729
39%
**77
91%
Accurate 3100
<<locked>>
81%
36912
58%
**13
99%
Accurate 4350
<<locked>>
81%
49240
77%
**39
100%
[Accurate MAGPRO]*
<<locked>>
81%
35810
56%
**59
92%
Alliant Reloder-16
<<locked>>
81%
47065
74%
**36
100%
Alliant Reloder-19
<<locked>>
81%
40988
64%
**21
97%
Alliant Reloder-22
<<locked>>
81%
36738
58%
**72
96%
Alliant Reloder-23
<<locked>>
81%
35447
56%
**39
100%
Alliant Reloder-25
<<locked>>
81%
30748
48%
**57
98%
Alliant Reloder-26
<<locked>>
81%
38870
61%
**64
100%
[Alliant Reloder-33]*
<<locked>>
93%
36579
57%
**15
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
36651
57%
**90
90%
Bofors RP15
<<locked>>
81%
34258
54%
**16
95%
[Bofors RP30]*
<<locked>>
81%
28152
44%
**85
91%
Bofors RP5
<<locked>>
81%
36738
58%
**72
96%
Bofors RP7
<<locked>>
81%
51793
81%
**39
100%
[Hodgdon H1000]*
<<locked>>
83%
28848
45%
**59
90%
Hodgdon H4350
<<locked>>
81%
44846
70%
**44
99%
[Hodgdon H4831]*
<<locked>>
81%
34374
54%
**67
93%
Hodgdon H4831 SC
<<locked>>
81%
38334
60%
**52
95%
Hodgdon Hybrid 100V
<<locked>>
81%
44382
70%
**31
100%
Hodgdon LVR
<<locked>>
81%
51590
81%
**72
100%
[Hodgdon Retumbo]*
<<locked>>
81%
24729
39%
**77
91%
Hodgdon Superperformance
<<locked>>
81%
51010
80%
**12
100%
IMR 4350
<<locked>>
81%
46760
73%
**77
99%
IMR 4451 Enduron
<<locked>>
81%
52997
83%
**56
100%
IMR 4831
<<locked>>
81%
42656
67%
**18
100%
IMR 4955 Enduron
<<locked>>
81%
38551
60%
**23
95%
IMR 7828 SSC
<<locked>>
81%
37391
59%
**85
95%
[IMR 7977 Enduron]*
<<locked>>
92%
46122
72%
**18
90%
[IMR 8133 Enduron]*
<<locked>>
88%
28108
44%
**92
90%
Lovex S065
<<locked>>
81%
50662
79%
**10
100%
Lovex S070
<<locked>>
81%
48863
77%
**07
100%
Lovex S071
<<locked>>
81%
31792
50%
**98
97%
Norma 204
<<locked>>
81%
47253
74%
**20
99%
[Norma 217]*
<<locked>>
84%
24468
38%
**00
90%
Norma MRP
<<locked>>
81%
38508
60%
**38
98%
Norma URP
<<locked>>
81%
48298
76%
**26
100%
Ramshot Grand
<<locked>>
81%
38986
61%
**38
96%
Ramshot Hunter
<<locked>>
81%
47065
74%
**20
100%
Ramshot Magnum
<<locked>>
81%
33968
53%
**06
96%
ReloadSwiss RS 62
<<locked>>
81%
49240
77%
**52
100%
ReloadSwiss RS 70
<<locked>>
81%
47514
74%
**75
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
28964
45%
**44
94%
[ReloadSwiss RS 80]*
<<locked>>
86%
30995
49%
**83
90%
Rottweil R 904
<<locked>>
81%
42250
66%
**05
97%
Rottweil R 905
<<locked>>
81%
40321
63%
**05
97%
Rottweil R 907
<<locked>>
81%
51793
81%
**39
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
49400
77%
**67
100%
Shooters World Long Rifle
<<locked>>
81%
50662
79%
**10
100%
Somchem S361
<<locked>>
81%
43178
68%
**98
96%
Somchem S365
<<locked>>
81%
45078
71%
**74
100%
Somchem S385
<<locked>>
81%
40915
64%
**92
98%
Vihtavuori N150
<<locked>>
81%
48414
76%
**34
100%
Vihtavuori N160
<<locked>>
81%
51721
81%
**43
100%
Vihtavuori N165
<<locked>>
81%
34563
54%
**60
96%
[Vihtavuori N170]*
<<locked>>
95%
40205
63%
**79
90%
Vihtavuori N550
<<locked>>
81%
52504
82%
**85
100%
Vihtavuori N555
<<locked>>
81%
39711
62%
**05
100%
[Vihtavuori N560]*
<<locked>>
81%
36927
58%
**88
94%
[Vihtavuori N565]*
<<locked>>
81%
31604
50%
**51
92%
[Vihtavuori N568]*
<<locked>>
86%
32082
50%
**93
90%
[Vihtavuori N570]*
<<locked>>
91%
37188
58%
**38
90%
Winchester 6.5 StaBALL
<<locked>>
81%
48892
77%
**77
100%
Winchester StaBALL HD
<<locked>>
81%
31502
49%
**69
100%

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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