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Load data for .338 Federal + .338 | 250gr | A-Square MONO RN

Recommended Powder(s): Hodgdon BL-C2, IMR 4895, Norma 203B, Ramshot Big Game, ReloadSwiss RS 52

.338 Federal + .338 | 250gr | A-Square MONO RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 250gr | A-Square MONO RN
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
1.000" | 25.4mm
Caliber:
.338 Federal load data
Case Length (l3):
2.014" | 51.2mm
Cartridge Length (C.O.L.):
2.778" | 70.6mm
Seated Depth:
0.236" | 6.0mm
Shank Seated Depth:
0.236" | 6.0mm
Case Capacity:
57.5 Grains of Water | 3.73 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
60191 psi | 4150 bar
LID:
LID_B384_C450
Last updated:
2025-01-01

Load data for 192 loads in caliber .338 Federal with .338 | 250gr | A-Square MONO RN bullet and 96 powders such as Hodgdon BL-C2, IMR 4895, Norma 203B, Ramshot Big Game, ReloadSwiss RS 52. 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".

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  • .

    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.

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>>
92%
52953
88%
**26
99%
ADI AR 2208
<<locked>>
97%
51401
85%
**87
99%
ADI AR 2219
<<locked>>
84%
53359
89%
**93
100%
Accurate 2015
<<locked>>
89%
53925
90%
**44
100%
Accurate 2200
<<locked>>
90%
53345
89%
**87
98%
Accurate 2230
<<locked>>
87%
53983
90%
**93
100%
Accurate 2460
<<locked>>
87%
53142
88%
**87
100%
Accurate 2495
<<locked>>
92%
53301
89%
**10
100%
Accurate 2520
<<locked>>
91%
53417
89%
**26
100%
[Accurate 2700]*
<<locked>>
97%
50749
84%
**15
94%
Accurate 4064
<<locked>>
97%
50894
85%
**00
100%
Accurate 4350
<<locked>>
97%
37304
62%
**65
95%
Alliant AR-Comp
<<locked>>
92%
53664
89%
**93
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
49777
83%
**00
100%
Alliant Reloder-10x
<<locked>>
86%
53229
88%
**44
100%
Alliant Reloder-15
<<locked>>
96%
53345
89%
**49
99%
Alliant Reloder-16
<<locked>>
97%
39015
65%
**75
96%
Alliant Reloder-17
<<locked>>
96%
43671
73%
**87
99%
Baschieri & Pellagri 106
<<locked>>
85%
54056
90%
**15
100%
Baschieri & Pellagri 107
<<locked>>
93%
53417
89%
**46
99%
Hodgdon BL-C2 👍
<<locked>>
91%
53490
89%
**56
100%
Hodgdon Benchmark
<<locked>>
89%
53287
89%
**57
100%
Hodgdon CFE223
<<locked>>
97%
53679
89%
**85
99%
Hodgdon H322
<<locked>>
89%
53359
89%
**93
100%
Hodgdon H335
<<locked>>
84%
53940
90%
**13
100%
Hodgdon H380
<<locked>>
97%
51895
86%
**20
98%
[Hodgdon H414]*
<<locked>>
97%
45513
76%
**74
94%
Hodgdon Hybrid 100V
<<locked>>
97%
35476
59%
**87
96%
Hodgdon LVR
<<locked>>
97%
42641
71%
**21
96%
Hodgdon VARGET
<<locked>>
97%
51082
85%
**83
99%
IMR 3031
<<locked>>
96%
53345
89%
**33
100%
IMR 4064
<<locked>>
97%
49545
82%
**51
99%
IMR 4166 Enduron
<<locked>>
97%
49980
83%
**24
95%
IMR 4198
<<locked>>
85%
53069
88%
**98
100%
[IMR 4350]*
<<locked>>
97%
39508
66%
**13
91%
[IMR 4451 Enduron]*
<<locked>>
96%
47195
78%
**15
94%
[IMR 4831]*
<<locked>>
97%
32358
54%
**47
93%
IMR 4895 👍
<<locked>>
96%
53664
89%
**65
100%
IMR 8208 XBR
<<locked>>
91%
53693
89%
**03
100%
Lovex D073.4
<<locked>>
86%
53795
89%
**83
100%
Lovex D073.5
<<locked>>
87%
53795
89%
**97
100%
Lovex D073.6
<<locked>>
93%
53417
89%
**26
100%
Lovex S060
<<locked>>
92%
53156
88%
**57
99%
Lovex S062
<<locked>>
97%
52866
88%
**06
100%
Lovex S065
<<locked>>
97%
43526
72%
**78
95%
[Lovex S070]*
<<locked>>
97%
40741
68%
**49
93%
Norma 201
<<locked>>
94%
53577
89%
**03
100%
Norma 202
<<locked>>
93%
53519
89%
**06
100%
Norma 203B 👍
<<locked>>
97%
53650
89%
**56
100%
Norma URP
<<locked>>
97%
38363
64%
**65
95%
Ramshot Big Game 👍
<<locked>>
97%
53447
89%
**72
99%
[Ramshot Hunter]*
<<locked>>
97%
37898
63%
**49
93%
Ramshot TAC
<<locked>>
91%
54143
90%
**13
98%
Ramshot Wild Boar
<<locked>>
91%
53432
89%
**36
99%
Ramshot X-Terminator
<<locked>>
88%
53592
89%
**87
99%
ReloadSwiss RS 40
<<locked>>
87%
53650
89%
**93
100%
ReloadSwiss RS 50
<<locked>>
97%
52765
88%
**06
97%
ReloadSwiss RS 52 👍
<<locked>>
97%
51764
86%
**62
100%
ReloadSwiss RS 60
<<locked>>
96%
42424
70%
**80
99%
ReloadSwiss RS 62
<<locked>>
97%
37710
63%
**78
95%
[ReloadSwiss RS 70]*
<<locked>>
97%
39044
65%
**85
94%
Rottweil R 901
<<locked>>
91%
53417
89%
**74
100%
Rottweil R 902
<<locked>>
96%
54070
90%
**97
100%
Rottweil R 903
<<locked>>
97%
46572
77%
**60
99%
[Rottweil R 907]*
<<locked>>
97%
45672
76%
**92
93%
SNPE Vectan SP 10
<<locked>>
84%
53490
89%
**00
100%
SNPE Vectan SP 11
<<locked>>
97%
48457
81%
**13
99%
SNPE Vectan SP 7
<<locked>>
92%
53374
89%
**10
98%
SNPE Vectan SP 9
<<locked>>
94%
53388
89%
**26
99%
SNPE Vectan Tubal 3000
<<locked>>
92%
53621
89%
**31
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
51068
85%
**05
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
96%
42192
70%
**26
93%
Shooters World Long Rifle
<<locked>>
97%
43526
72%
**78
95%
Shooters World Match Rifle
<<locked>>
93%
53417
89%
**26
100%
Shooters World Precision
<<locked>>
97%
52866
88%
**06
100%
Shooters World Tactical Rifle
<<locked>>
85%
53882
90%
**70
100%
Somchem S321
<<locked>>
88%
53388
89%
**16
100%
Somchem S335
<<locked>>
93%
53737
89%
**47
100%
Somchem S341
<<locked>>
92%
53751
89%
**16
99%
Somchem S355
<<locked>>
97%
47834
79%
**64
99%
Somchem S365
<<locked>>
97%
33794
56%
**16
98%
Vihtavuori N120
<<locked>>
83%
53447
89%
**42
100%
Vihtavuori N130
<<locked>>
89%
53650
89%
**05
100%
Vihtavuori N133
<<locked>>
94%
53272
88%
**18
100%
Vihtavuori N135
<<locked>>
97%
45382
75%
**85
100%
Vihtavuori N140
<<locked>>
96%
54143
90%
**90
100%
Vihtavuori N150
<<locked>>
97%
40089
67%
**29
99%
Vihtavuori N160
<<locked>>
97%
42554
71%
**95
96%
Vihtavuori N530
<<locked>>
89%
53940
90%
**13
100%
Vihtavuori N540
<<locked>>
96%
54128
90%
**23
100%
Vihtavuori N550
<<locked>>
97%
42380
70%
**34
96%
[Vihtavuori N555]*
<<locked>>
97%
28253
47%
**05
92%
Winchester 6.5 StaBALL
<<locked>>
97%
41539
69%
**56
98%
Winchester 748
<<locked>>
89%
53388
89%
**49
100%
[Winchester 760]*
<<locked>>
97%
45513
76%
**74
94%
Winchester StaBALL Match
<<locked>>
87%
53998
90%
**49
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
37202
62%
**80
97%
[ADI AR 2208]*
<<locked>>
81%
31952
53%
**59
94%
ADI AR 2219
<<locked>>
81%
49081
82%
**38
100%
Accurate 2015
<<locked>>
81%
42119
70%
**00
100%
Accurate 2200
<<locked>>
81%
39436
66%
**83
96%
Accurate 2230
<<locked>>
81%
44048
73%
**62
99%
Accurate 2460
<<locked>>
81%
44353
74%
**75
100%
Accurate 2495
<<locked>>
81%
36912
61%
**90
100%
Accurate 2520
<<locked>>
81%
37536
62%
**06
99%
[Accurate 2700]*
<<locked>>
88%
37666
63%
**18
90%
Accurate 4064
<<locked>>
81%
31053
52%
**91
99%
[Accurate 4350]*
<<locked>>
86%
26165
43%
**23
90%
Alliant AR-Comp
<<locked>>
81%
37913
63%
**93
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
30400
51%
**69
96%
Alliant Reloder-10x
<<locked>>
81%
46050
76%
**56
100%
Alliant Reloder-15
<<locked>>
81%
33025
55%
**18
95%
[Alliant Reloder-16]*
<<locked>>
86%
28761
48%
**42
90%
[Alliant Reloder-17]*
<<locked>>
81%
26701
44%
**23
92%
Baschieri & Pellagri 106
<<locked>>
81%
48501
81%
**49
100%
Baschieri & Pellagri 107
<<locked>>
81%
36318
60%
**80
95%
Hodgdon BL-C2
<<locked>>
81%
37159
62%
**16
98%
Hodgdon Benchmark
<<locked>>
81%
41278
69%
**87
99%
[Hodgdon CFE223]*
<<locked>>
81%
31517
52%
**14
93%
Hodgdon H322
<<locked>>
81%
41597
69%
**36
100%
Hodgdon H335
<<locked>>
81%
47819
79%
**34
100%
[Hodgdon H380]*
<<locked>>
81%
31053
52%
**75
92%
[Hodgdon H414]*
<<locked>>
88%
34563
57%
**80
90%
[Hodgdon Hybrid 100V]*
<<locked>>
84%
23931
40%
**11
90%
[Hodgdon LVR]*
<<locked>>
85%
29254
49%
**55
90%
[Hodgdon VARGET]*
<<locked>>
81%
31531
52%
**55
94%
IMR 3031
<<locked>>
81%
33127
55%
**41
100%
[IMR 4064]*
<<locked>>
81%
30980
51%
**39
94%
[IMR 4166 Enduron]*
<<locked>>
84%
34519
57%
**69
90%
IMR 4198
<<locked>>
81%
46833
78%
**26
100%
[IMR 4350]*
<<locked>>
94%
36724
61%
**60
90%
[IMR 4451 Enduron]*
<<locked>>
86%
34519
57%
**98
90%
[IMR 4831]*
<<locked>>
90%
26629
44%
**06
90%
IMR 4895
<<locked>>
81%
33808
56%
**47
96%
IMR 8208 XBR
<<locked>>
81%
39218
65%
**93
98%
Lovex D073.4
<<locked>>
81%
45571
76%
**78
100%
Lovex D073.5
<<locked>>
81%
43787
73%
**65
100%
Lovex D073.6
<<locked>>
81%
35259
59%
**64
99%
Lovex S060
<<locked>>
81%
38159
63%
**34
97%
Lovex S062
<<locked>>
81%
32721
54%
**91
97%
[Lovex S065]*
<<locked>>
84%
29820
50%
**19
90%
[Lovex S070]*
<<locked>>
90%
33460
56%
**14
90%
Norma 201
<<locked>>
81%
36651
61%
**47
98%
Norma 202
<<locked>>
81%
36419
60%
**60
100%
Norma 203B
<<locked>>
81%
32416
54%
**14
95%
[Norma URP]*
<<locked>>
86%
27398
46%
**26
90%
Ramshot Big Game
<<locked>>
81%
32082
53%
**21
95%
[Ramshot Hunter]*
<<locked>>
92%
32619
54%
**37
90%
[Ramshot TAC]*
<<locked>>
81%
39102
65%
**87
94%
Ramshot Wild Boar
<<locked>>
81%
38058
63%
**10
97%
Ramshot X-Terminator
<<locked>>
81%
42409
70%
**29
98%
ReloadSwiss RS 40
<<locked>>
81%
43990
73%
**62
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
32256
54%
**65
90%
ReloadSwiss RS 52
<<locked>>
81%
31009
52%
**24
97%
[ReloadSwiss RS 60]*
<<locked>>
81%
26223
44%
**09
92%
[ReloadSwiss RS 62]*
<<locked>>
88%
28732
48%
**82
90%
[ReloadSwiss RS 70]*
<<locked>>
91%
32314
54%
**37
90%
Rottweil R 901
<<locked>>
81%
40538
67%
**93
100%
Rottweil R 902
<<locked>>
81%
34795
58%
**08
97%
[Rottweil R 903]*
<<locked>>
81%
28094
47%
**26
94%
[Rottweil R 907]*
<<locked>>
90%
36608
61%
**41
90%
SNPE Vectan SP 10
<<locked>>
81%
49588
82%
**51
100%
[SNPE Vectan SP 11]*
<<locked>>
81%
29631
49%
**69
93%
[SNPE Vectan SP 7]*
<<locked>>
81%
36985
61%
**64
94%
SNPE Vectan SP 9
<<locked>>
81%
35998
60%
**60
96%
SNPE Vectan Tubal 3000
<<locked>>
81%
38551
64%
**24
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
31618
53%
**16
99%
[SNPE Vectan Tubal 7000]*
<<locked>>
89%
33373
55%
**72
90%
[Shooters World Long Rifle]*
<<locked>>
84%
29820
50%
**19
90%
Shooters World Match Rifle
<<locked>>
81%
35259
59%
**64
99%
Shooters World Precision
<<locked>>
81%
32721
54%
**91
97%
Shooters World Tactical Rifle
<<locked>>
81%
46876
78%
**78
99%
Somchem S321
<<locked>>
81%
42047
70%
**59
99%
Somchem S335
<<locked>>
81%
37913
63%
**28
100%
Somchem S341
<<locked>>
81%
36825
61%
**70
97%
Somchem S355
<<locked>>
81%
29385
49%
**42
95%
[Somchem S365]*
<<locked>>
82%
22147
37%
**01
90%
Vihtavuori N120
<<locked>>
81%
50212
83%
**06
100%
Vihtavuori N130
<<locked>>
81%
42844
71%
**73
100%
Vihtavuori N133
<<locked>>
81%
36013
60%
**88
100%
Vihtavuori N135
<<locked>>
81%
28442
47%
**06
99%
Vihtavuori N140
<<locked>>
81%
33808
56%
**98
99%
[Vihtavuori N150]*
<<locked>>
81%
24947
41%
**21
94%
[Vihtavuori N160]*
<<locked>>
84%
28094
47%
**09
90%
Vihtavuori N530
<<locked>>
81%
41365
69%
**39
99%
Vihtavuori N540
<<locked>>
81%
33678
56%
**18
99%
[Vihtavuori N550]*
<<locked>>
83%
27427
46%
**32
90%
[Vihtavuori N555]*
<<locked>>
93%
25759
43%
**32
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
25396
42%
**18
91%
Winchester 748
<<locked>>
81%
41060
68%
**75
99%
[Winchester 760]*
<<locked>>
88%
34563
57%
**80
90%
Winchester StaBALL Match
<<locked>>
81%
43265
72%
**01
99%

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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