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Load data for .375 CheyTAC + .375 | 250gr | Speer TBBC

Recommended Powder(s):

.375 CheyTAC + .375 | 250gr | Speer TBBC

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 250gr | Speer TBBC
Manufacturer SKU:
1778
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.215" | 30.9mm
Caliber:
.375 CheyTAC load data
Case Length (l3):
3.020" | 76.7mm
Cartridge Length (C.O.L.):
4.113" | 104.5mm
Seated Depth:
0.122" | 3.1mm
Shank Seated Depth:
0.122" | 3.1mm
Case Capacity:
165.0 Grains of Water | 10.71 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B6244_C537
Last updated:
2025-01-01

Load data for 94 loads in caliber .375 CheyTAC with .375 | 250gr | Speer TBBC bullet and 47 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".

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  • 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>>
86%
57130
90%
**86
100%
ADI AR 2213
<<locked>>
89%
57130
90%
**22
99%
ADI AR 2217
<<locked>>
97%
54998
86%
**72
99%
[ADI AR 2218]*
<<locked>>
97%
47906
75%
**20
94%
ADI AR 2225
<<locked>>
97%
49893
78%
**36
100%
Accurate 3100
<<locked>>
89%
57116
90%
**17
100%
Accurate MAGPRO
<<locked>>
89%
57101
89%
**28
98%
Alliant Reloder-19
<<locked>>
87%
57232
90%
**86
100%
Alliant Reloder-22
<<locked>>
89%
57174
90%
**15
100%
Alliant Reloder-23
<<locked>>
90%
57377
90%
**59
100%
Alliant Reloder-25
<<locked>>
94%
57305
90%
**15
100%
Alliant Reloder-26
<<locked>>
86%
57290
90%
**28
100%
Alliant Reloder-33
<<locked>>
97%
52910
83%
**92
96%
[Alliant Reloder-50]*
<<locked>>
97%
45049
71%
**25
93%
Hodgdon H1000
<<locked>>
97%
54998
86%
**72
99%
Hodgdon H4350
<<locked>>
85%
57145
90%
**33
100%
Hodgdon H4831 👍
<<locked>>
92%
57130
90%
**72
99%
Hodgdon H4831 SC
<<locked>>
88%
57130
90%
**72
99%
Hodgdon Hybrid 100V
<<locked>>
84%
57130
90%
**00
100%
Hodgdon Retumbo
<<locked>>
97%
49893
78%
**36
100%
Hodgdon TrailBoss
<<locked>>
97%
36071
57%
**06
100%
IMR 4350
<<locked>>
83%
57348
90%
**36
100%
IMR 4831
<<locked>>
86%
57174
90%
**27
100%
IMR 4955 Enduron
<<locked>>
90%
57290
90%
**40
99%
IMR 7828 SSC
<<locked>>
88%
57276
90%
**31
99%
[IMR 7977 Enduron]*
<<locked>>
94%
57305
90%
**00
94%
IMR 8133 Enduron
<<locked>>
97%
45847
72%
**44
98%
Lovex S071
<<locked>>
94%
56956
89%
**23
100%
Norma 217
<<locked>>
97%
46746
73%
**77
99%
Norma MRP
<<locked>>
87%
57334
90%
**28
100%
Ramshot Magnum
<<locked>>
89%
57203
90%
**76
100%
ReloadSwiss RS 14
<<locked>>
97%
36927
58%
**52
100%
ReloadSwiss RS 76 👍
<<locked>>
94%
57261
90%
**84
100%
ReloadSwiss RS 80 👍
<<locked>>
96%
57130
90%
**54
99%
Rottweil R 904
<<locked>>
86%
57363
90%
**56
99%
Rottweil R 905
<<locked>>
87%
57029
89%
**76
100%
Somchem S361
<<locked>>
85%
57159
90%
**17
99%
Somchem S365
<<locked>>
83%
57217
90%
**33
100%
Somchem S385
<<locked>>
87%
57334
90%
**46
100%
Vihtavuori N165
<<locked>>
92%
57145
90%
**23
100%
[Vihtavuori N170]*
<<locked>>
97%
51300
80%
**41
94%
Vihtavuori N555
<<locked>>
87%
57217
90%
**66
100%
Vihtavuori N560 👍
<<locked>>
89%
57290
90%
**35
99%
Vihtavuori N565
<<locked>>
93%
57116
89%
**12
99%
Vihtavuori N568
<<locked>>
96%
57392
90%
**54
98%
Vihtavuori N570
<<locked>>
97%
56521
89%
**61
97%
Winchester StaBALL HD 👍
<<locked>>
90%
57261
90%
**45
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47543
75%
**31
99%
ADI AR 2213
<<locked>>
81%
42656
67%
**62
96%
[ADI AR 2217]*
<<locked>>
81%
31734
50%
**80
92%
[ADI AR 2218]*
<<locked>>
92%
39929
63%
**33
90%
[ADI AR 2225]*
<<locked>>
81%
29037
46%
**44
94%
Accurate 3100
<<locked>>
81%
43497
68%
**00
99%
[Accurate MAGPRO]*
<<locked>>
81%
42598
67%
**49
94%
Alliant Reloder-19
<<locked>>
81%
47326
74%
**22
99%
Alliant Reloder-22
<<locked>>
81%
43279
68%
**59
98%
Alliant Reloder-23
<<locked>>
81%
42003
66%
**20
100%
Alliant Reloder-25
<<locked>>
81%
36318
57%
**41
99%
Alliant Reloder-26
<<locked>>
81%
47805
75%
**84
100%
[Alliant Reloder-33]*
<<locked>>
88%
37811
59%
**74
90%
[Alliant Reloder-50]*
<<locked>>
93%
38928
61%
**90
90%
[Hodgdon H1000]*
<<locked>>
81%
31734
50%
**80
92%
Hodgdon H4350
<<locked>>
81%
50821
80%
**35
100%
Hodgdon H4831
<<locked>>
81%
40045
63%
**57
95%
Hodgdon H4831 SC
<<locked>>
81%
44469
70%
**46
96%
Hodgdon Hybrid 100V
<<locked>>
81%
51082
80%
**12
100%
[Hodgdon Retumbo]*
<<locked>>
81%
29037
46%
**44
94%
Hodgdon TrailBoss
<<locked>>
81%
28616
45%
**45
100%
IMR 4350
<<locked>>
81%
53171
83%
**77
100%
IMR 4831
<<locked>>
81%
48849
77%
**05
100%
IMR 4955 Enduron
<<locked>>
81%
43859
69%
**03
96%
IMR 7828 SSC
<<locked>>
81%
44034
69%
**95
97%
[IMR 7977 Enduron]*
<<locked>>
88%
46427
73%
**07
90%
[IMR 8133 Enduron]*
<<locked>>
84%
29820
47%
**57
90%
Lovex S071
<<locked>>
81%
37246
58%
**69
98%
[Norma 217]*
<<locked>>
81%
26614
42%
**82
91%
Norma MRP
<<locked>>
81%
46122
72%
**48
99%
Ramshot Magnum
<<locked>>
81%
41162
65%
**13
98%
ReloadSwiss RS 14
<<locked>>
81%
29443
46%
**91
100%
ReloadSwiss RS 76
<<locked>>
81%
34751
54%
**31
97%
[ReloadSwiss RS 80]*
<<locked>>
82%
32460
51%
**43
90%
Rottweil R 904
<<locked>>
81%
48414
76%
**02
98%
Rottweil R 905
<<locked>>
81%
46862
73%
**02
99%
Somchem S361
<<locked>>
81%
49429
77%
**92
98%
Somchem S365
<<locked>>
81%
52852
83%
**74
100%
Somchem S385
<<locked>>
81%
47369
74%
**79
99%
Vihtavuori N165
<<locked>>
81%
40059
63%
**25
97%
[Vihtavuori N170]*
<<locked>>
90%
41437
65%
**61
90%
Vihtavuori N555
<<locked>>
81%
46746
73%
**95
100%
Vihtavuori N560
<<locked>>
81%
43410
68%
**89
96%
[Vihtavuori N565]*
<<locked>>
81%
37927
59%
**35
94%
[Vihtavuori N568]*
<<locked>>
82%
33663
53%
**62
90%
[Vihtavuori N570]*
<<locked>>
87%
39073
61%
**26
90%
Winchester StaBALL HD
<<locked>>
81%
39813
62%
**56
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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