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Load data for 37XC + .375 | 255gr | Barnes Originals

Recommended Powder(s): Alliant Reloder-26, Hodgdon H4350, Hodgdon Superperformance, Norma 204, Ramshot Hunter

37XC + .375 | 255gr | Barnes Originals

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 255gr | Barnes Originals
Manufacturer SKU:
30496
Bullet Weight:
255gr | 16.5g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
<<locked>>
Caliber:
37XC load data
Case Length (l3):
3.087" | 78.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
139.8 Grains of Water | 9.08 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
69618 psi | 4800 bar
LID:
LID_B734_C453
Last updated:
2026-03-11

Load data for 190 loads in caliber 37XC with .375 | 255gr | Barnes Originals bullet and 95 powders such as Alliant Reloder-26, Hodgdon H4350, Hodgdon Superperformance, Norma 204, Ramshot Hunter. 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 APS 450
<<locked>>
84%
62511
90%
**03
101%
ADI AR 2208
<<locked>>
87%
62033
89%
**46
100%
ADI AR 2209
<<locked>>
97%
61743
89%
**38
99%
ADI AR 2213
<<locked>>
97%
55405
80%
**69
97%
[ADI AR 2217]*
<<locked>>
97%
40422
58%
**67
93%
ADI AR 2225
<<locked>>
97%
35810
51%
**18
95%
Accurate 2700
<<locked>>
88%
62381
90%
**13
100%
Accurate 3100
<<locked>>
97%
54737
79%
**81
100%
Accurate 4064
<<locked>>
85%
62395
90%
**07
100%
Accurate 4350
<<locked>>
92%
62598
90%
**02
100%
Accurate MAGPRO
<<locked>>
97%
54099
78%
**66
95%
Alliant Reloder- TS 15.5
<<locked>>
86%
62134
89%
**49
100%
Alliant Reloder-15
<<locked>>
84%
62627
90%
**79
100%
Alliant Reloder-16
<<locked>>
94%
62613
90%
**54
100%
Alliant Reloder-17
<<locked>>
88%
62134
89%
**45
100%
Alliant Reloder-19
<<locked>>
97%
60611
87%
**15
99%
Alliant Reloder-22
<<locked>>
97%
54766
79%
**72
99%
Alliant Reloder-23
<<locked>>
97%
51605
74%
**94
100%
Alliant Reloder-25
<<locked>>
97%
44991
65%
**28
99%
Alliant Reloder-26 👍
<<locked>>
97%
60539
87%
**00
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
54027
78%
**67
94%
Bofors RP15
<<locked>>
97%
50415
72%
**94
98%
Bofors RP3
<<locked>>
86%
62482
90%
**63
100%
[Bofors RP30]*
<<locked>>
97%
41133
59%
**40
94%
Bofors RP5
<<locked>>
97%
54766
79%
**72
99%
Bofors RP7
<<locked>>
90%
62424
90%
**63
100%
Hodgdon CFE223
<<locked>>
84%
62308
90%
**05
100%
[Hodgdon H1000]*
<<locked>>
97%
40422
58%
**67
93%
Hodgdon H380
<<locked>>
86%
62540
90%
**76
100%
Hodgdon H414
<<locked>>
88%
62511
90%
**38
100%
Hodgdon H4350 👍
<<locked>>
95%
62482
90%
**86
100%
Hodgdon H4831
<<locked>>
97%
50778
73%
**38
96%
Hodgdon H4831 SC
<<locked>>
97%
58001
83%
**49
97%
Hodgdon Hybrid 100V
<<locked>>
95%
62279
89%
**63
100%
Hodgdon LVR
<<locked>>
90%
62149
89%
**09
100%
Hodgdon Retumbo
<<locked>>
97%
35810
51%
**18
95%
Hodgdon Superperformance 👍
<<locked>>
90%
62366
90%
**64
100%
Hodgdon VARGET
<<locked>>
87%
62033
89%
**46
100%
Hodgdon TrailBoss
<<locked>>
97%
35143
50%
**98
100%
IMR 3031
<<locked>>
84%
62482
90%
**17
100%
IMR 4064
<<locked>>
88%
62294
89%
**36
100%
IMR 4166 Enduron
<<locked>>
89%
62511
90%
**49
100%
IMR 4350
<<locked>>
94%
62468
90%
**82
100%
IMR 4451 Enduron
<<locked>>
89%
62381
90%
**69
100%
IMR 4831
<<locked>>
97%
61424
88%
**79
100%
IMR 4895
<<locked>>
84%
62482
90%
**86
100%
IMR 4955 Enduron
<<locked>>
97%
56115
81%
**90
97%
IMR 7828 SSC
<<locked>>
97%
57130
82%
**12
98%
Lovex S062
<<locked>>
85%
62584
90%
**27
100%
Lovex S065
<<locked>>
91%
62192
89%
**53
100%
Lovex S070
<<locked>>
92%
62308
89%
**79
100%
Lovex S071
<<locked>>
97%
45876
66%
**33
99%
Norma 203B
<<locked>>
85%
62207
89%
**66
100%
Norma 204 👍
<<locked>>
93%
62149
89%
**18
99%
Norma MRP
<<locked>>
97%
58305
84%
**48
100%
Norma URP
<<locked>>
93%
62468
90%
**15
100%
Ramshot Big Game
<<locked>>
84%
62308
89%
**86
100%
Ramshot Grand
<<locked>>
97%
61119
88%
**77
99%
Ramshot Hunter 👍
<<locked>>
93%
62642
90%
**28
100%
Ramshot Magnum
<<locked>>
97%
53330
77%
**27
99%
ReloadSwiss RS 14
<<locked>>
96%
35723
51%
**34
100%
ReloadSwiss RS 50
<<locked>>
86%
62294
89%
**59
100%
ReloadSwiss RS 60
<<locked>>
87%
62279
89%
**45
100%
ReloadSwiss RS 62
<<locked>>
92%
62323
90%
**31
100%
ReloadSwiss RS 70
<<locked>>
93%
62613
90%
**84
100%
ReloadSwiss RS 76
<<locked>>
97%
43569
63%
**38
98%
Rottweil R 902
<<locked>>
84%
62656
90%
**10
100%
Rottweil R 903
<<locked>>
88%
62236
89%
**46
100%
Rottweil R 904
<<locked>>
97%
62047
89%
**92
99%
Rottweil R 905
<<locked>>
97%
60350
87%
**12
99%
Rottweil R 907
<<locked>>
90%
62424
90%
**63
100%
SNPE Vectan SP 11
<<locked>>
87%
62598
90%
**89
100%
SNPE Vectan Tubal 5000
<<locked>>
88%
62352
90%
**22
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
62656
90%
**23
100%
Shooters World Long Rifle
<<locked>>
91%
62192
89%
**53
100%
Shooters World Precision
<<locked>>
85%
62584
90%
**27
100%
Somchem S355
<<locked>>
88%
62613
90%
**56
100%
Somchem S361
<<locked>>
96%
62584
90%
**56
98%
Somchem S365
<<locked>>
95%
62424
90%
**12
100%
Somchem S385
<<locked>>
97%
60901
87%
**79
100%
Vihtavuori N133
<<locked>>
84%
62381
90%
**15
100%
Vihtavuori N135
<<locked>>
89%
62613
90%
**61
100%
Vihtavuori N140
<<locked>>
84%
62337
90%
**71
100%
Vihtavuori N150
<<locked>>
93%
62250
89%
**07
100%
Vihtavuori N160
<<locked>>
90%
62323
90%
**76
100%
Vihtavuori N165
<<locked>>
97%
51039
73%
**18
98%
Vihtavuori N540
<<locked>>
84%
62453
90%
**00
100%
Vihtavuori N550
<<locked>>
90%
62149
89%
**15
100%
Vihtavuori N555
<<locked>>
97%
57972
83%
**72
100%
Vihtavuori N560
<<locked>>
97%
54926
79%
**89
97%
Vihtavuori N565
<<locked>>
97%
46920
67%
**31
95%
Winchester 6.5 StaBALL
<<locked>>
92%
62642
90%
**36
100%
Winchester 760
<<locked>>
88%
62511
90%
**38
100%
Winchester StaBALL HD
<<locked>>
97%
47950
69%
**63
100%
Winchester Supreme 780
<<locked>>
96%
62047
89%
**92
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59973
86%
**67
101%
ADI AR 2208
<<locked>>
81%
51735
74%
**95
100%
[ADI AR 2209]*
<<locked>>
81%
36158
52%
**59
93%
[ADI AR 2213]*
<<locked>>
83%
34925
50%
**43
90%
[ADI AR 2217]*
<<locked>>
93%
35186
51%
**36
90%
[ADI AR 2225]*
<<locked>>
91%
29298
42%
**15
90%
Accurate 2700
<<locked>>
81%
49908
72%
**23
98%
Accurate 3100
<<locked>>
81%
31850
46%
**25
95%
Accurate 4064
<<locked>>
81%
55579
80%
**18
100%
Accurate 4350
<<locked>>
81%
43105
62%
**97
99%
[Accurate MAGPRO]*
<<locked>>
88%
38769
56%
**61
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
52562
75%
**18
100%
Alliant Reloder-15
<<locked>>
81%
56130
81%
**94
100%
Alliant Reloder-16
<<locked>>
81%
41408
59%
**03
99%
Alliant Reloder-17
<<locked>>
81%
47703
69%
**31
100%
[Alliant Reloder-19]*
<<locked>>
81%
36114
52%
**52
93%
[Alliant Reloder-22]*
<<locked>>
81%
31981
46%
**84
91%
Alliant Reloder-23
<<locked>>
81%
30589
44%
**57
98%
[Alliant Reloder-25]*
<<locked>>
81%
26861
39%
**46
91%
Alliant Reloder-26
<<locked>>
81%
33127
48%
**75
97%
[Baschieri & Pellagri 109]*
<<locked>>
90%
43888
63%
**67
90%
[Bofors RP15]*
<<locked>>
82%
31024
45%
**57
90%
Bofors RP3
<<locked>>
81%
53476
77%
**35
100%
[Bofors RP30]*
<<locked>>
90%
32677
47%
**30
90%
[Bofors RP5]*
<<locked>>
81%
31981
46%
**84
91%
Bofors RP7
<<locked>>
81%
46499
67%
**13
98%
Hodgdon CFE223
<<locked>>
81%
55854
80%
**13
100%
[Hodgdon H1000]*
<<locked>>
93%
35186
51%
**36
90%
Hodgdon H380
<<locked>>
81%
53751
77%
**44
100%
Hodgdon H414
<<locked>>
81%
48820
70%
**22
99%
Hodgdon H4350
<<locked>>
81%
39943
57%
**95
96%
[Hodgdon H4831]*
<<locked>>
86%
35607
51%
**20
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
35607
51%
**20
90%
Hodgdon Hybrid 100V
<<locked>>
81%
39015
56%
**02
100%
Hodgdon LVR
<<locked>>
81%
45672
66%
**43
99%
[Hodgdon Retumbo]*
<<locked>>
91%
29298
42%
**15
90%
Hodgdon Superperformance
<<locked>>
81%
44237
64%
**59
97%
Hodgdon VARGET
<<locked>>
81%
51387
74%
**92
100%
Hodgdon TrailBoss
<<locked>>
81%
28021
40%
**47
100%
IMR 3031
<<locked>>
81%
57798
83%
**61
100%
IMR 4064
<<locked>>
81%
50792
73%
**72
100%
IMR 4166 Enduron
<<locked>>
81%
49705
71%
**46
99%
IMR 4350
<<locked>>
81%
41916
60%
**31
96%
IMR 4451 Enduron
<<locked>>
81%
48051
69%
**40
98%
IMR 4831
<<locked>>
81%
37362
54%
**62
98%
IMR 4895
<<locked>>
81%
57551
83%
**13
100%
[IMR 4955 Enduron]*
<<locked>>
81%
34896
50%
**67
90%
[IMR 7828 SSC]*
<<locked>>
83%
34621
50%
**49
90%
Lovex S062
<<locked>>
81%
54650
78%
**22
100%
Lovex S065
<<locked>>
81%
45397
65%
**84
99%
Lovex S070
<<locked>>
81%
43642
63%
**67
98%
[Lovex S071]*
<<locked>>
81%
27224
39%
**00
92%
Norma 203B
<<locked>>
81%
55477
80%
**77
100%
Norma 204
<<locked>>
81%
41800
60%
**67
95%
[Norma MRP]*
<<locked>>
81%
33156
48%
**46
93%
Norma URP
<<locked>>
81%
42395
61%
**84
99%
Ramshot Big Game
<<locked>>
81%
56391
81%
**04
100%
[Ramshot Grand]*
<<locked>>
81%
34156
49%
**46
90%
Ramshot Hunter
<<locked>>
81%
41321
59%
**80
98%
[Ramshot Magnum]*
<<locked>>
81%
29646
43%
**08
90%
ReloadSwiss RS 14
<<locked>>
81%
28558
41%
**83
100%
ReloadSwiss RS 50
<<locked>>
81%
53476
77%
**28
99%
ReloadSwiss RS 60
<<locked>>
81%
50604
73%
**77
100%
ReloadSwiss RS 62
<<locked>>
81%
42873
62%
**17
99%
ReloadSwiss RS 70
<<locked>>
81%
41481
60%
**33
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
29791
43%
**61
90%
Rottweil R 902
<<locked>>
81%
56637
81%
**35
100%
Rottweil R 903
<<locked>>
81%
50285
72%
**79
100%
[Rottweil R 904]*
<<locked>>
81%
37463
54%
**43
92%
[Rottweil R 905]*
<<locked>>
81%
35172
51%
**36
93%
Rottweil R 907
<<locked>>
81%
46499
67%
**13
98%
SNPE Vectan SP 11
<<locked>>
81%
51677
74%
**38
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50778
73%
**74
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44628
64%
**31
98%
Shooters World Long Rifle
<<locked>>
81%
45397
65%
**84
99%
Shooters World Precision
<<locked>>
81%
54650
78%
**22
100%
Somchem S355
<<locked>>
81%
50430
72%
**76
100%
[Somchem S361]*
<<locked>>
81%
38363
55%
**33
92%
Somchem S365
<<locked>>
81%
39131
56%
**44
100%
[Somchem S385]*
<<locked>>
81%
35955
52%
**26
94%
Vihtavuori N133
<<locked>>
81%
56391
81%
**36
100%
Vihtavuori N135
<<locked>>
81%
48907
70%
**80
100%
Vihtavuori N140
<<locked>>
81%
56449
81%
**02
100%
Vihtavuori N150
<<locked>>
81%
43178
62%
**18
100%
Vihtavuori N160
<<locked>>
81%
45788
66%
**17
100%
[Vihtavuori N165]*
<<locked>>
81%
29994
43%
**65
91%
Vihtavuori N540
<<locked>>
81%
56289
81%
**25
100%
Vihtavuori N550
<<locked>>
81%
46470
67%
**69
100%
Vihtavuori N555
<<locked>>
81%
34258
49%
**39
98%
[Vihtavuori N560]*
<<locked>>
84%
35621
51%
**89
90%
[Vihtavuori N565]*
<<locked>>
88%
34592
50%
**56
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43192
62%
**57
100%
Winchester 760
<<locked>>
81%
48820
70%
**22
99%
Winchester StaBALL HD
<<locked>>
81%
25048
36%
**44
97%
[Winchester Supreme 780]*
<<locked>>
81%
35621
51%
**16
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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