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Load data for 37XC + .375 | 250gr | Barnes TTSX BT

Recommended Powder(s): Alliant Reloder-16, Hodgdon H414, Hodgdon Superperformance, ReloadSwiss RS 62, ReloadSwiss RS 70

37XC + .375 | 250gr | Barnes TTSX BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 250gr | Barnes TTSX BT
Manufacturer SKU:
30484
Bullet Weight:
250gr | 16.2g
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_B731_C453
Last updated:
2026-04-04
Recommended Twist Rate:
1:16 - 1:13

Load data for 222 loads in caliber 37XC with .375 | 250gr | Barnes TTSX BT bullet and 111 powders such as Alliant Reloder-16, Hodgdon H414, Hodgdon Superperformance, ReloadSwiss RS 62, ReloadSwiss RS 70. 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%
62613
90%
**90
101%
ADI AR 2206H
<<locked>>
85%
62424
90%
**79
100%
ADI AR 2208
<<locked>>
90%
62482
90%
**63
100%
ADI AR 2209
<<locked>>
97%
54317
78%
**30
98%
ADI AR 2213
<<locked>>
97%
48428
70%
**51
95%
ADI Benchmark 8208
<<locked>>
84%
62627
90%
**36
100%
Accurate 2200
<<locked>>
84%
62569
90%
**53
100%
Accurate 2495
<<locked>>
83%
62062
89%
**94
100%
Accurate 2700
<<locked>>
91%
62294
89%
**13
99%
Accurate 3100
<<locked>>
97%
46963
67%
**69
99%
Accurate 4064
<<locked>>
89%
62584
90%
**30
100%
Accurate 4350
<<locked>>
96%
62424
90%
**25
100%
[Accurate MAGPRO]*
<<locked>>
97%
46398
67%
**38
92%
Alliant Power Pro 2000-MR
<<locked>>
86%
62540
90%
**91
100%
Alliant Reloder- TS 15.5
<<locked>>
90%
62497
90%
**69
100%
Alliant Reloder-15
<<locked>>
88%
62598
90%
**92
100%
Alliant Reloder-16 👍
<<locked>>
97%
61511
88%
**54
100%
Alliant Reloder-17
<<locked>>
92%
62453
90%
**68
100%
Alliant Reloder-19
<<locked>>
97%
53272
77%
**07
97%
Alliant Reloder-22
<<locked>>
97%
47181
68%
**44
96%
Alliant Reloder-23
<<locked>>
97%
44585
64%
**99
100%
Alliant Reloder-25
<<locked>>
97%
38928
56%
**03
97%
Alliant Reloder-26
<<locked>>
97%
50546
73%
**79
100%
Baschieri & Pellagri 107
<<locked>>
85%
62294
89%
**89
100%
Bofors RP15
<<locked>>
97%
43395
62%
**72
95%
Bofors RP3
<<locked>>
89%
62497
90%
**72
100%
Bofors RP5
<<locked>>
97%
47181
68%
**44
96%
Bofors RP7
<<locked>>
94%
62381
90%
**69
99%
Hodgdon CFE223
<<locked>>
87%
62221
89%
**15
100%
Hodgdon H380
<<locked>>
89%
62308
89%
**86
100%
Hodgdon H414 👍
<<locked>>
92%
62497
90%
**48
100%
Hodgdon H4350
<<locked>>
97%
58349
84%
**33
99%
[Hodgdon H4831]*
<<locked>>
97%
44628
64%
**26
93%
Hodgdon H4831 SC
<<locked>>
97%
50836
73%
**44
95%
Hodgdon H4895
<<locked>>
85%
62526
90%
**72
100%
Hodgdon Hybrid 100V
<<locked>>
97%
57508
83%
**13
100%
Hodgdon LVR
<<locked>>
94%
62627
90%
**25
100%
Hodgdon Superperformance 👍
<<locked>>
94%
62613
90%
**71
100%
Hodgdon VARGET
<<locked>>
91%
62482
90%
**63
100%
Hodgdon TrailBoss
<<locked>>
97%
34693
50%
**78
100%
IMR 3031
<<locked>>
87%
62294
89%
**30
100%
IMR 4064
<<locked>>
91%
62627
90%
**56
100%
IMR 4166 Enduron
<<locked>>
92%
62598
90%
**56
100%
IMR 4350
<<locked>>
97%
62076
89%
**79
99%
IMR 4451 Enduron
<<locked>>
93%
62395
90%
**79
100%
IMR 4831
<<locked>>
97%
54157
78%
**97
100%
IMR 4895
<<locked>>
87%
62613
90%
**95
100%
IMR 4955 Enduron
<<locked>>
97%
50314
72%
**02
95%
IMR 7828 SSC
<<locked>>
97%
49617
71%
**87
95%
IMR 8208 XBR
<<locked>>
84%
62627
90%
**36
100%
Lovex D073.6
<<locked>>
85%
62120
89%
**33
100%
Lovex S060
<<locked>>
86%
62120
89%
**07
100%
Lovex S062
<<locked>>
89%
62221
89%
**40
100%
Lovex S065
<<locked>>
95%
62279
89%
**66
100%
Lovex S070
<<locked>>
96%
62584
90%
**89
100%
Lovex S071
<<locked>>
97%
38928
56%
**12
97%
Norma 201
<<locked>>
86%
62352
90%
**36
100%
Norma 202
<<locked>>
85%
62265
89%
**17
100%
Norma 203B
<<locked>>
88%
62366
90%
**82
100%
Norma 204
<<locked>>
96%
62207
89%
**22
99%
Norma MRP
<<locked>>
97%
49734
71%
**23
98%
Norma URP
<<locked>>
97%
62540
90%
**25
100%
Ramshot Big Game
<<locked>>
87%
62294
89%
**95
100%
Ramshot Grand
<<locked>>
97%
53055
76%
**59
97%
Ramshot Hunter
<<locked>>
97%
61844
89%
**35
100%
Ramshot Magnum
<<locked>>
97%
45571
65%
**95
97%
Ramshot TAC
<<locked>>
83%
62221
89%
**63
100%
Ramshot Wild Boar
<<locked>>
83%
62395
90%
**72
100%
ReloadSwiss RS 14
<<locked>>
97%
35201
51%
**18
100%
ReloadSwiss RS 50
<<locked>>
89%
62265
89%
**66
100%
ReloadSwiss RS 52
<<locked>>
85%
62207
89%
**41
100%
ReloadSwiss RS 60
<<locked>>
91%
62584
90%
**68
100%
ReloadSwiss RS 62 👍
<<locked>>
96%
62613
90%
**51
100%
ReloadSwiss RS 70 👍
<<locked>>
96%
61902
89%
**91
100%
[ReloadSwiss RS 76]*
<<locked>>
97%
37637
54%
**90
94%
Rottweil R 901
<<locked>>
84%
62279
89%
**00
100%
Rottweil R 902
<<locked>>
87%
62134
89%
**20
100%
Rottweil R 903
<<locked>>
91%
62120
89%
**63
100%
Rottweil R 904
<<locked>>
97%
55709
80%
**97
97%
Rottweil R 905
<<locked>>
97%
52489
75%
**94
97%
Rottweil R 907
<<locked>>
94%
62381
90%
**69
99%
SNPE Vectan SP 11
<<locked>>
90%
62395
90%
**05
100%
SNPE Vectan SP 7
<<locked>>
84%
62482
90%
**59
100%
SNPE Vectan SP 9
<<locked>>
86%
62105
89%
**59
100%
SNPE Vectan Tubal 3000
<<locked>>
85%
62613
90%
**51
100%
SNPE Vectan Tubal 5000
<<locked>>
91%
62410
90%
**31
100%
SNPE Vectan Tubal 7000
<<locked>>
95%
61815
89%
**17
100%
Shooters World Long Rifle
<<locked>>
95%
62279
89%
**66
100%
Shooters World Match Rifle
<<locked>>
85%
62120
89%
**33
100%
Shooters World Precision
<<locked>>
89%
62221
89%
**40
100%
Somchem S335
<<locked>>
86%
62381
90%
**44
100%
Somchem S341
<<locked>>
84%
62236
89%
**43
100%
Somchem S355
<<locked>>
91%
62236
89%
**63
100%
Somchem S361
<<locked>>
97%
57899
83%
**87
96%
Somchem S365
<<locked>>
97%
58436
84%
**86
100%
Somchem S385
<<locked>>
97%
53301
77%
**74
98%
Vihtavuori N133
<<locked>>
87%
62381
90%
**22
100%
Vihtavuori N135
<<locked>>
93%
62511
90%
**74
100%
Vihtavuori N140
<<locked>>
88%
62656
90%
**94
100%
Vihtavuori N150
<<locked>>
97%
62337
90%
**20
100%
Vihtavuori N160
<<locked>>
94%
61931
89%
**79
100%
Vihtavuori N165
<<locked>>
97%
44222
64%
**10
96%
Vihtavuori N540
<<locked>>
87%
62236
89%
**20
100%
Vihtavuori N550
<<locked>>
94%
62453
90%
**28
100%
Vihtavuori N555
<<locked>>
97%
49617
71%
**64
100%
[Vihtavuori N560]*
<<locked>>
97%
47282
68%
**58
94%
[Vihtavuori N565]*
<<locked>>
97%
39624
57%
**87
92%
Winchester 6.5 StaBALL
<<locked>>
95%
62381
90%
**53
100%
Winchester 760
<<locked>>
92%
62497
90%
**48
100%
Winchester StaBALL HD
<<locked>>
97%
38595
55%
**31
100%
Winchester Supreme 780
<<locked>>
97%
55259
79%
**94
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59408
85%
**41
100%
ADI AR 2206H
<<locked>>
81%
54940
79%
**64
100%
ADI AR 2208
<<locked>>
81%
46644
67%
**23
100%
[ADI AR 2209]*
<<locked>>
82%
33098
48%
**80
90%
[ADI AR 2213]*
<<locked>>
89%
37478
54%
**12
90%
ADI Benchmark 8208
<<locked>>
81%
57217
82%
**64
100%
Accurate 2200
<<locked>>
81%
57014
82%
**74
100%
Accurate 2495
<<locked>>
81%
57595
83%
**41
100%
Accurate 2700
<<locked>>
81%
44802
64%
**38
96%
[Accurate 3100]*
<<locked>>
81%
26760
38%
**10
91%
Accurate 4064
<<locked>>
81%
48747
70%
**36
100%
Accurate 4350
<<locked>>
81%
37086
53%
**89
98%
[Accurate MAGPRO]*
<<locked>>
94%
41756
60%
**33
90%
Alliant Power Pro 2000-MR
<<locked>>
81%
51764
74%
**36
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
46775
67%
**40
100%
Alliant Reloder-15
<<locked>>
81%
50285
72%
**12
100%
Alliant Reloder-16
<<locked>>
81%
36405
52%
**08
98%
Alliant Reloder-17
<<locked>>
81%
41524
60%
**43
100%
[Alliant Reloder-19]*
<<locked>>
82%
32503
47%
**70
90%
[Alliant Reloder-22]*
<<locked>>
86%
32576
47%
**13
90%
Alliant Reloder-23
<<locked>>
81%
26223
38%
**43
95%
[Alliant Reloder-25]*
<<locked>>
86%
27180
39%
**62
90%
[Alliant Reloder-26]*
<<locked>>
81%
28079
40%
**44
93%
Baschieri & Pellagri 107
<<locked>>
81%
54984
79%
**84
100%
[Bofors RP15]*
<<locked>>
88%
32648
47%
**16
90%
Bofors RP3
<<locked>>
81%
46992
68%
**46
100%
[Bofors RP5]*
<<locked>>
86%
32576
47%
**13
90%
Bofors RP7
<<locked>>
81%
41437
60%
**15
96%
Hodgdon CFE223
<<locked>>
81%
49356
71%
**25
100%
Hodgdon H380
<<locked>>
81%
47500
68%
**59
99%
Hodgdon H414
<<locked>>
81%
43004
62%
**20
97%
[Hodgdon H4350]*
<<locked>>
81%
35259
51%
**00
93%
[Hodgdon H4831]*
<<locked>>
92%
38058
55%
**85
90%
[Hodgdon H4831 SC]*
<<locked>>
89%
38319
55%
**89
90%
Hodgdon H4895
<<locked>>
81%
55564
80%
**77
100%
Hodgdon Hybrid 100V
<<locked>>
81%
33721
48%
**03
98%
Hodgdon LVR
<<locked>>
81%
40190
58%
**57
98%
Hodgdon Superperformance
<<locked>>
81%
38421
55%
**44
95%
Hodgdon VARGET
<<locked>>
81%
46282
66%
**17
100%
Hodgdon TrailBoss
<<locked>>
81%
27383
39%
**24
100%
IMR 3031
<<locked>>
81%
51416
74%
**85
100%
IMR 4064
<<locked>>
81%
45658
66%
**97
100%
IMR 4166 Enduron
<<locked>>
81%
44831
64%
**61
97%
[IMR 4350]*
<<locked>>
81%
37231
53%
**43
94%
IMR 4451 Enduron
<<locked>>
81%
43120
62%
**51
97%
IMR 4831
<<locked>>
81%
32227
46%
**61
96%
IMR 4895
<<locked>>
81%
51663
74%
**44
100%
[IMR 4955 Enduron]*
<<locked>>
87%
37130
53%
**33
90%
[IMR 7828 SSC]*
<<locked>>
89%
37202
53%
**18
90%
IMR 8208 XBR
<<locked>>
81%
57217
82%
**64
100%
Lovex D073.6
<<locked>>
81%
55071
79%
**41
100%
Lovex S060
<<locked>>
81%
53925
77%
**92
100%
Lovex S062
<<locked>>
81%
49008
70%
**46
100%
Lovex S065
<<locked>>
81%
40205
58%
**95
97%
Lovex S070
<<locked>>
81%
38421
55%
**72
95%
[Lovex S071]*
<<locked>>
85%
25686
37%
**77
90%
Norma 201
<<locked>>
81%
53476
77%
**05
100%
Norma 202
<<locked>>
81%
54085
78%
**08
100%
Norma 203B
<<locked>>
81%
49530
71%
**95
100%
[Norma 204]*
<<locked>>
81%
36448
52%
**52
92%
[Norma MRP]*
<<locked>>
82%
29617
43%
**57
90%
Norma URP
<<locked>>
81%
36869
53%
**85
97%
Ramshot Big Game
<<locked>>
81%
50024
72%
**22
100%
[Ramshot Grand]*
<<locked>>
87%
36448
52%
**12
90%
Ramshot Hunter
<<locked>>
81%
35839
51%
**69
95%
[Ramshot Magnum]*
<<locked>>
87%
31647
45%
**67
90%
Ramshot TAC
<<locked>>
81%
57551
83%
**94
100%
Ramshot Wild Boar
<<locked>>
81%
57450
83%
**04
100%
ReloadSwiss RS 14
<<locked>>
81%
27905
40%
**63
100%
ReloadSwiss RS 50
<<locked>>
81%
47761
69%
**43
98%
ReloadSwiss RS 52
<<locked>>
81%
54317
78%
**27
100%
ReloadSwiss RS 60
<<locked>>
81%
44150
63%
**02
100%
ReloadSwiss RS 62
<<locked>>
81%
36956
53%
**08
97%
ReloadSwiss RS 70
<<locked>>
81%
36143
52%
**18
97%
[ReloadSwiss RS 76]*
<<locked>>
92%
31778
46%
**23
90%
Rottweil R 901
<<locked>>
81%
57580
83%
**38
100%
Rottweil R 902
<<locked>>
81%
50749
73%
**62
100%
Rottweil R 903
<<locked>>
81%
44135
63%
**94
100%
[Rottweil R 904]*
<<locked>>
83%
35505
51%
**07
90%
[Rottweil R 905]*
<<locked>>
82%
31850
46%
**67
90%
Rottweil R 907
<<locked>>
81%
41437
60%
**15
96%
SNPE Vectan SP 11
<<locked>>
81%
45542
65%
**46
100%
SNPE Vectan SP 7
<<locked>>
81%
56028
80%
**67
100%
SNPE Vectan SP 9
<<locked>>
81%
53330
77%
**38
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
54375
78%
**46
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45788
66%
**08
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39494
57%
**39
96%
Shooters World Long Rifle
<<locked>>
81%
40205
58%
**95
97%
Shooters World Match Rifle
<<locked>>
81%
55071
79%
**41
100%
Shooters World Precision
<<locked>>
81%
49008
70%
**46
100%
Somchem S335
<<locked>>
81%
54070
78%
**40
100%
Somchem S341
<<locked>>
81%
55854
80%
**61
100%
Somchem S355
<<locked>>
81%
44701
64%
**00
100%
[Somchem S361]*
<<locked>>
84%
37449
54%
**20
90%
Somchem S365
<<locked>>
81%
33359
48%
**49
99%
[Somchem S385]*
<<locked>>
81%
30864
44%
**15
91%
Vihtavuori N133
<<locked>>
81%
51387
74%
**84
100%
Vihtavuori N135
<<locked>>
81%
43337
62%
**12
100%
Vihtavuori N140
<<locked>>
81%
50676
73%
**30
100%
Vihtavuori N150
<<locked>>
81%
38029
55%
**39
100%
Vihtavuori N160
<<locked>>
81%
40074
58%
**25
98%
[Vihtavuori N165]*
<<locked>>
86%
30777
44%
**05
90%
Vihtavuori N540
<<locked>>
81%
50488
73%
**53
100%
Vihtavuori N550
<<locked>>
81%
40741
59%
**64
98%
Vihtavuori N555
<<locked>>
81%
28732
41%
**15
95%
[Vihtavuori N560]*
<<locked>>
90%
37695
54%
**48
90%
[Vihtavuori N565]*
<<locked>>
94%
36245
52%
**15
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37869
54%
**62
99%
Winchester 760
<<locked>>
81%
43004
62%
**20
97%
[Winchester StaBALL HD]*
<<locked>>
81%
22989
33%
**77
92%
[Winchester Supreme 780]*
<<locked>>
82%
32401
47%
**48
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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