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Load data for .338 Rem. Ultra Mag + .338 | 220gr | Atomic 29 HP

Recommended Powder(s): Alliant Reloder-26, Norma 204, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD

.338 Rem. Ultra Mag + .338 | 220gr | Atomic 29 HP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 220gr | Atomic 29 HP
Bullet Weight:
220gr | 14.3g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
.338 Rem. Ultra Mag load data
Case Length (l3):
2.760" | 70.1mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B12235_C459
Last updated:
2026-03-23

Load data for 170 loads in caliber .338 Rem. Ultra Mag with .338 | 220gr | Atomic 29 HP bullet and 85 powders such as Alliant Reloder-26, Norma 204, Ramshot Hunter, Vihtavuori N555, Winchester StaBALL HD. 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 2208
<<locked>>
85%
56927
89%
**43
100%
ADI AR 2209
<<locked>>
96%
57232
90%
**28
99%
ADI AR 2213
<<locked>>
97%
52953
83%
**02
98%
[ADI AR 2217]*
<<locked>>
97%
38392
60%
**10
93%
ADI AR 2225
<<locked>>
97%
34171
54%
**67
95%
Accurate 2700
<<locked>>
86%
57392
90%
**10
99%
Accurate 3100
<<locked>>
97%
52591
82%
**17
100%
Accurate 4064
<<locked>>
83%
56956
89%
**03
100%
Accurate 4350
<<locked>>
90%
57058
89%
**99
100%
Accurate MAGPRO
<<locked>>
97%
51547
81%
**85
95%
Alliant Reloder- TS 15.5
<<locked>>
85%
57217
90%
**49
100%
Alliant Reloder-16
<<locked>>
92%
56956
89%
**41
100%
Alliant Reloder-17
<<locked>>
87%
56927
89%
**41
100%
Alliant Reloder-19
<<locked>>
96%
57406
90%
**35
99%
Alliant Reloder-22
<<locked>>
97%
52373
82%
**95
99%
Alliant Reloder-23
<<locked>>
97%
49835
78%
**33
100%
Alliant Reloder-25
<<locked>>
97%
42989
67%
**64
99%
Alliant Reloder-26 👍
<<locked>>
97%
57435
90%
**20
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
52605
82%
**13
94%
Bofors RP15
<<locked>>
97%
47935
75%
**23
98%
Bofors RP3
<<locked>>
84%
56956
89%
**49
100%
[Bofors RP30]*
<<locked>>
97%
39175
61%
**79
94%
Bofors RP5
<<locked>>
97%
52373
82%
**95
99%
Bofors RP7
<<locked>>
88%
57246
90%
**59
100%
[Hodgdon H1000]*
<<locked>>
97%
38392
60%
**10
93%
Hodgdon H380
<<locked>>
84%
56971
89%
**69
100%
Hodgdon H414
<<locked>>
87%
57261
90%
**28
100%
Hodgdon H4350
<<locked>>
93%
57043
89%
**69
100%
Hodgdon H4831
<<locked>>
97%
48878
77%
**74
96%
Hodgdon H4831 SC
<<locked>>
97%
55753
87%
**85
97%
Hodgdon Hybrid 100V
<<locked>>
94%
56971
89%
**59
100%
Hodgdon LVR
<<locked>>
89%
57319
90%
**05
100%
Hodgdon Retumbo
<<locked>>
97%
34171
54%
**67
95%
Hodgdon Superperformance
<<locked>>
89%
57130
90%
**51
100%
Hodgdon VARGET
<<locked>>
85%
56927
89%
**43
100%
Hodgdon TrailBoss
<<locked>>
96%
34650
54%
**99
100%
IMR 4064
<<locked>>
86%
57043
89%
**30
100%
IMR 4166 Enduron
<<locked>>
87%
57145
90%
**33
100%
IMR 4350
<<locked>>
91%
56942
89%
**72
100%
IMR 4451 Enduron
<<locked>>
87%
56913
89%
**49
100%
IMR 4831
<<locked>>
96%
57130
90%
**82
100%
IMR 4955 Enduron
<<locked>>
97%
54505
85%
**36
97%
IMR 7828 SSC
<<locked>>
97%
54969
86%
**41
98%
Lovex S062
<<locked>>
83%
56840
89%
**17
100%
Lovex S065
<<locked>>
89%
57246
90%
**53
100%
Lovex S070
<<locked>>
90%
56913
89%
**66
100%
Lovex S071
<<locked>>
97%
43613
68%
**72
99%
Norma 203B
<<locked>>
83%
57363
90%
**69
100%
Norma 204 👍
<<locked>>
91%
57203
90%
**05
99%
Norma MRP
<<locked>>
97%
56347
88%
**87
100%
Norma URP
<<locked>>
91%
57246
90%
**02
100%
Ramshot Grand
<<locked>>
96%
56811
89%
**74
99%
Ramshot Hunter 👍
<<locked>>
91%
56913
89%
**18
100%
Ramshot Magnum
<<locked>>
97%
51459
81%
**59
99%
ReloadSwiss RS 14
<<locked>>
96%
35476
56%
**42
100%
ReloadSwiss RS 50
<<locked>>
84%
57145
90%
**53
100%
ReloadSwiss RS 60
<<locked>>
85%
57058
89%
**38
100%
ReloadSwiss RS 62
<<locked>>
90%
57305
90%
**22
100%
ReloadSwiss RS 70
<<locked>>
91%
56855
89%
**64
100%
ReloadSwiss RS 76
<<locked>>
97%
41872
66%
**77
98%
Rottweil R 903
<<locked>>
86%
56855
89%
**46
100%
Rottweil R 904
<<locked>>
95%
56942
89%
**82
98%
Rottweil R 905
<<locked>>
96%
57276
90%
**25
99%
Rottweil R 907
<<locked>>
88%
57246
90%
**59
100%
SNPE Vectan SP 11
<<locked>>
85%
57319
90%
**82
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
56826
89%
**21
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
57087
89%
**07
100%
Shooters World Long Rifle
<<locked>>
89%
57246
90%
**53
100%
Shooters World Precision
<<locked>>
83%
56840
89%
**17
100%
Somchem S355
<<locked>>
86%
56782
89%
**43
100%
Somchem S361
<<locked>>
94%
56898
89%
**43
98%
Somchem S365
<<locked>>
93%
57246
90%
**08
100%
Somchem S385
<<locked>>
96%
56985
89%
**92
100%
Vihtavuori N135
<<locked>>
87%
56956
89%
**57
100%
Vihtavuori N150
<<locked>>
91%
56855
89%
**00
100%
Vihtavuori N160
<<locked>>
88%
57072
89%
**59
100%
Vihtavuori N165
<<locked>>
97%
48733
76%
**54
98%
Vihtavuori N550
<<locked>>
88%
56884
89%
**02
100%
Vihtavuori N555 👍
<<locked>>
97%
55709
87%
**05
100%
Vihtavuori N560
<<locked>>
97%
52562
82%
**15
97%
Vihtavuori N565
<<locked>>
97%
44672
70%
**67
96%
Winchester 6.5 StaBALL
<<locked>>
90%
57348
90%
**36
100%
Winchester 760
<<locked>>
87%
57261
90%
**28
100%
Winchester StaBALL HD 👍
<<locked>>
97%
45469
71%
**89
100%
Winchester Supreme 780
<<locked>>
95%
56855
89%
**76
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
50401
79%
**48
100%
[ADI AR 2209]*
<<locked>>
81%
34867
55%
**25
93%
[ADI AR 2213]*
<<locked>>
83%
33112
52%
**95
90%
[ADI AR 2217]*
<<locked>>
93%
33417
52%
**82
90%
[ADI AR 2225]*
<<locked>>
91%
27891
44%
**80
90%
Accurate 2700
<<locked>>
81%
48501
76%
**79
98%
Accurate 3100
<<locked>>
81%
29892
47%
**87
95%
Accurate 4064
<<locked>>
81%
53171
83%
**51
100%
Accurate 4350
<<locked>>
81%
40959
64%
**43
99%
[Accurate MAGPRO]*
<<locked>>
88%
37028
58%
**13
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
51039
80%
**71
100%
Alliant Reloder-16
<<locked>>
81%
39769
62%
**59
99%
Alliant Reloder-17
<<locked>>
81%
45832
72%
**74
100%
[Alliant Reloder-19]*
<<locked>>
81%
34534
54%
**18
93%
[Alliant Reloder-22]*
<<locked>>
81%
30211
47%
**39
91%
Alliant Reloder-23
<<locked>>
81%
29066
46%
**20
98%
[Alliant Reloder-25]*
<<locked>>
81%
25512
40%
**11
91%
Alliant Reloder-26
<<locked>>
81%
31343
49%
**28
97%
[Baschieri & Pellagri 109]*
<<locked>>
89%
41379
65%
**03
90%
[Bofors RP15]*
<<locked>>
82%
29211
46%
**10
90%
Bofors RP3
<<locked>>
81%
51416
81%
**71
100%
[Bofors RP30]*
<<locked>>
90%
30864
48%
**79
90%
[Bofors RP5]*
<<locked>>
81%
30211
47%
**39
91%
Bofors RP7
<<locked>>
81%
45005
71%
**62
98%
[Hodgdon H1000]*
<<locked>>
93%
33417
52%
**82
90%
Hodgdon H380
<<locked>>
81%
51953
81%
**94
100%
Hodgdon H414
<<locked>>
81%
47108
74%
**67
99%
Hodgdon H4350
<<locked>>
81%
38435
60%
**54
96%
[Hodgdon H4831]*
<<locked>>
86%
33837
53%
**72
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
33837
53%
**72
90%
Hodgdon Hybrid 100V
<<locked>>
81%
37260
58%
**54
100%
Hodgdon LVR
<<locked>>
81%
43874
69%
**95
99%
[Hodgdon Retumbo]*
<<locked>>
91%
27891
44%
**80
90%
Hodgdon Superperformance
<<locked>>
81%
42438
67%
**12
98%
Hodgdon VARGET
<<locked>>
81%
49850
78%
**41
100%
Hodgdon TrailBoss
<<locked>>
81%
27615
43%
**58
100%
IMR 4064
<<locked>>
81%
49081
77%
**18
100%
IMR 4166 Enduron
<<locked>>
81%
48428
76%
**05
99%
IMR 4350
<<locked>>
81%
40509
63%
**93
97%
IMR 4451 Enduron
<<locked>>
81%
46572
73%
**92
98%
IMR 4831
<<locked>>
81%
35650
56%
**21
98%
[IMR 4955 Enduron]*
<<locked>>
81%
33054
52%
**23
90%
[IMR 7828 SSC]*
<<locked>>
82%
32895
52%
**02
90%
Lovex S062
<<locked>>
81%
53185
83%
**67
100%
Lovex S065
<<locked>>
81%
43642
68%
**36
99%
Lovex S070
<<locked>>
81%
41930
66%
**23
98%
[Lovex S071]*
<<locked>>
81%
25614
40%
**69
92%
Norma 203B
<<locked>>
81%
53751
84%
**23
100%
Norma 204
<<locked>>
81%
40277
63%
**26
95%
[Norma MRP]*
<<locked>>
81%
31676
50%
**08
94%
Norma URP
<<locked>>
81%
40654
64%
**39
99%
[Ramshot Grand]*
<<locked>>
81%
32300
51%
**95
90%
Ramshot Hunter
<<locked>>
81%
39813
62%
**30
98%
[Ramshot Magnum]*
<<locked>>
81%
28181
44%
**70
90%
ReloadSwiss RS 14
<<locked>>
81%
28340
44%
**01
100%
ReloadSwiss RS 50
<<locked>>
81%
51779
81%
**74
100%
ReloadSwiss RS 60
<<locked>>
81%
48675
76%
**26
100%
ReloadSwiss RS 62
<<locked>>
81%
41075
64%
**69
99%
ReloadSwiss RS 70
<<locked>>
81%
39813
62%
**75
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
28181
44%
**13
90%
Rottweil R 903
<<locked>>
81%
48312
76%
**28
100%
[Rottweil R 904]*
<<locked>>
81%
36289
57%
**05
92%
[Rottweil R 905]*
<<locked>>
81%
33663
53%
**98
93%
Rottweil R 907
<<locked>>
81%
45005
71%
**62
98%
SNPE Vectan SP 11
<<locked>>
81%
50096
78%
**87
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49472
78%
**23
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
42714
67%
**87
98%
Shooters World Long Rifle
<<locked>>
81%
43642
68%
**36
99%
Shooters World Precision
<<locked>>
81%
53185
83%
**67
100%
Somchem S355
<<locked>>
81%
48573
76%
**28
100%
[Somchem S361]*
<<locked>>
81%
36767
58%
**92
92%
Somchem S365
<<locked>>
81%
37333
59%
**97
100%
[Somchem S385]*
<<locked>>
81%
34200
54%
**85
94%
Vihtavuori N135
<<locked>>
81%
47224
74%
**33
100%
Vihtavuori N150
<<locked>>
81%
41539
65%
**77
100%
Vihtavuori N160
<<locked>>
81%
44063
69%
**66
100%
[Vihtavuori N165]*
<<locked>>
81%
28485
45%
**31
91%
Vihtavuori N550
<<locked>>
81%
44715
70%
**15
100%
Vihtavuori N555
<<locked>>
81%
32242
51%
**92
98%
[Vihtavuori N560]*
<<locked>>
84%
33605
53%
**28
90%
[Vihtavuori N565]*
<<locked>>
88%
32619
51%
**08
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41553
65%
**07
100%
Winchester 760
<<locked>>
81%
47108
74%
**67
99%
Winchester StaBALL HD
<<locked>>
81%
23351
37%
**00
97%
[Winchester Supreme 780]*
<<locked>>
81%
34098
53%
**75
93%

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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