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Load data for .375 CheyTAC + .375 | 300gr | A-Square MONO RN

Recommended Powder(s):

.375 CheyTAC + .375 | 300gr | A-Square MONO RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 300gr | A-Square MONO RN
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
<<locked>>
Caliber:
.375 CheyTAC load data
Case Length (l3):
3.020" | 76.7mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
161.0 Grains of Water | 10.45 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B393_C537
Last updated:
2026-01-21

Load data for 106 loads in caliber .375 CheyTAC with .375 | 300gr | A-Square MONO RN bullet and 53 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>>
84%
57188
90%
**69
100%
ADI AR 2213
<<locked>>
86%
57043
89%
**02
100%
ADI AR 2217
<<locked>>
95%
57348
90%
**02
100%
ADI AR 2218
<<locked>>
97%
53809
84%
**54
98%
ADI AR 2225 👍
<<locked>>
97%
56521
89%
**18
100%
Accurate 3100
<<locked>>
86%
57087
89%
**03
100%
[Accurate 8700]*
<<locked>>
97%
42757
67%
**52
94%
Accurate MAGPRO
<<locked>>
86%
57377
90%
**18
99%
Alliant Reloder-19
<<locked>>
84%
57348
90%
**69
100%
Alliant Reloder-22
<<locked>>
86%
57029
89%
**89
100%
Alliant Reloder-23
<<locked>>
87%
57217
90%
**30
100%
Alliant Reloder-25
<<locked>>
91%
57348
90%
**99
100%
Alliant Reloder-33
<<locked>>
96%
57392
90%
**61
99%
Alliant Reloder-50
<<locked>>
97%
51822
81%
**66
97%
Baschieri & Pellagri 109
<<locked>>
88%
57246
90%
**69
99%
Bofors RP15
<<locked>>
88%
57348
90%
**99
100%
Bofors RP30 👍
<<locked>>
93%
57377
90%
**12
100%
Bofors RP5
<<locked>>
86%
57029
89%
**89
100%
Hodgdon H1000
<<locked>>
95%
57348
90%
**02
100%
Hodgdon H4831
<<locked>>
89%
57377
90%
**56
100%
Hodgdon H4831 SC
<<locked>>
86%
57377
90%
**56
100%
Hodgdon Retumbo 👍
<<locked>>
97%
56521
89%
**18
100%
Hodgdon TrailBoss
<<locked>>
97%
36376
57%
**49
100%
IMR 4831
<<locked>>
83%
57261
90%
**03
100%
IMR 4955 Enduron
<<locked>>
87%
57421
90%
**33
100%
IMR 7828 SSC
<<locked>>
85%
57392
90%
**18
100%
IMR 7977 Enduron
<<locked>>
92%
57377
90%
**10
96%
IMR 8133 Enduron
<<locked>>
97%
51880
81%
**53
100%
Lovex D100
<<locked>>
95%
57363
90%
**40
95%
Lovex S071
<<locked>>
91%
57087
89%
**03
100%
Norma 217
<<locked>>
97%
53229
83%
**79
100%
Norma MRP
<<locked>>
84%
57246
90%
**05
100%
Ramshot Grand
<<locked>>
83%
57363
90%
**18
100%
[Ramshot LRT]*
<<locked>>
97%
53388
84%
**79
93%
Ramshot Magnum
<<locked>>
87%
57334
90%
**62
100%
ReloadSwiss RS 14
<<locked>>
96%
37202
58%
**88
100%
ReloadSwiss RS 76
<<locked>>
91%
57377
90%
**61
100%
ReloadSwiss RS 80 👍
<<locked>>
93%
57174
90%
**41
100%
Rottweil R 904
<<locked>>
83%
57029
89%
**33
100%
Rottweil R 905
<<locked>>
84%
57290
90%
**66
100%
SNPE Vectan SP 13
<<locked>>
97%
45092
71%
**82
95%
Shooters World 50 BMG
<<locked>>
95%
57363
90%
**40
95%
Somchem S385
<<locked>>
84%
57392
90%
**33
100%
[Vihtavuori 20N29]*
<<locked>>
97%
42830
67%
**52
92%
[Vihtavuori 24N41]*
<<locked>>
97%
54114
85%
**43
93%
Vihtavuori N165
<<locked>>
89%
57188
90%
**13
100%
Vihtavuori N170
<<locked>>
97%
56579
89%
**36
97%
Vihtavuori N555
<<locked>>
84%
57159
90%
**33
100%
Vihtavuori N560
<<locked>>
86%
57392
90%
**22
100%
Vihtavuori N565
<<locked>>
90%
56971
89%
**92
100%
Vihtavuori N568 👍
<<locked>>
93%
57029
89%
**41
99%
Vihtavuori N570
<<locked>>
94%
57276
90%
**67
98%
Winchester StaBALL HD
<<locked>>
87%
57261
90%
**12
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
52170
82%
**00
100%
ADI AR 2213
<<locked>>
81%
47485
74%
**54
99%
ADI AR 2217
<<locked>>
81%
35302
55%
**02
96%
[ADI AR 2218]*
<<locked>>
85%
34911
55%
**34
90%
ADI AR 2225
<<locked>>
81%
32590
51%
**79
98%
Accurate 3100
<<locked>>
81%
48211
76%
**75
100%
[Accurate 8700]*
<<locked>>
91%
34592
54%
**75
90%
Accurate MAGPRO
<<locked>>
81%
47776
75%
**61
98%
Alliant Reloder-19
<<locked>>
81%
52199
82%
**94
100%
Alliant Reloder-22
<<locked>>
81%
48167
75%
**57
100%
Alliant Reloder-23
<<locked>>
81%
46804
73%
**79
100%
Alliant Reloder-25
<<locked>>
81%
40756
64%
**36
100%
[Alliant Reloder-33]*
<<locked>>
81%
33315
52%
**88
90%
[Alliant Reloder-50]*
<<locked>>
86%
34272
54%
**08
90%
Baschieri & Pellagri 109
<<locked>>
81%
45237
71%
**59
96%
Bofors RP15
<<locked>>
81%
44802
70%
**95
99%
Bofors RP30
<<locked>>
81%
38203
60%
**84
97%
Bofors RP5
<<locked>>
81%
48167
75%
**57
100%
Hodgdon H1000
<<locked>>
81%
35302
55%
**02
96%
Hodgdon H4831
<<locked>>
81%
44048
69%
**36
98%
Hodgdon H4831 SC
<<locked>>
81%
49023
77%
**28
99%
Hodgdon Retumbo
<<locked>>
81%
32590
51%
**79
98%
Hodgdon TrailBoss
<<locked>>
85%
30937
48%
**44
100%
IMR 4831
<<locked>>
81%
53577
84%
**57
100%
IMR 4955 Enduron
<<locked>>
81%
47761
75%
**82
99%
IMR 7828 SSC
<<locked>>
81%
49211
77%
**87
99%
[IMR 7977 Enduron]*
<<locked>>
81%
40553
64%
**15
90%
[IMR 8133 Enduron]*
<<locked>>
81%
30037
47%
**93
93%
[Lovex D100]*
<<locked>>
88%
43526
68%
**03
90%
Lovex S071
<<locked>>
81%
41408
65%
**64
100%
Norma 217
<<locked>>
81%
30298
47%
**20
96%
Norma MRP
<<locked>>
81%
51488
81%
**23
100%
Ramshot Grand
<<locked>>
81%
52881
83%
**49
100%
[Ramshot LRT]*
<<locked>>
92%
45643
72%
**35
90%
Ramshot Magnum
<<locked>>
81%
46557
73%
**05
100%
ReloadSwiss RS 14
<<locked>>
82%
30066
47%
**44
100%
ReloadSwiss RS 76
<<locked>>
81%
39523
62%
**69
100%
ReloadSwiss RS 80
<<locked>>
81%
36289
57%
**61
95%
Rottweil R 904
<<locked>>
81%
52779
83%
**74
100%
Rottweil R 905
<<locked>>
81%
51924
81%
**87
100%
[SNPE Vectan SP 13]*
<<locked>>
89%
34577
54%
**62
90%
[Shooters World 50 BMG]*
<<locked>>
88%
43526
68%
**03
90%
Somchem S385
<<locked>>
81%
52112
82%
**57
100%
[Vihtavuori 20N29]*
<<locked>>
94%
39146
61%
**77
90%
[Vihtavuori 24N41]*
<<locked>>
92%
45527
71%
**02
90%
Vihtavuori N165
<<locked>>
81%
44440
70%
**20
100%
[Vihtavuori N170]*
<<locked>>
83%
35824
56%
**56
90%
Vihtavuori N555
<<locked>>
81%
51764
81%
**61
100%
Vihtavuori N560
<<locked>>
81%
48443
76%
**80
99%
Vihtavuori N565
<<locked>>
81%
42525
67%
**52
98%
Vihtavuori N568
<<locked>>
81%
37449
59%
**77
95%
[Vihtavuori N570]*
<<locked>>
81%
35766
56%
**61
91%
Winchester StaBALL HD
<<locked>>
81%
46151
72%
**48
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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