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Load data for .375 CheyTAC + .375 | 285gr | Speer Grand Slam

Recommended Powder(s):

.375 CheyTAC + .375 | 285gr | Speer Grand Slam

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 285gr | Speer Grand Slam
Manufacturer SKU:
2473
Bullet Weight:
285gr | 18.5g
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_B6246_C537
Last updated:
2026-01-31

Load data for 106 loads in caliber .375 CheyTAC with .375 | 285gr | Speer Grand Slam 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>>
85%
57145
90%
**38
100%
ADI AR 2213
<<locked>>
88%
57377
90%
**71
100%
ADI AR 2217 👍
<<locked>>
96%
57319
90%
**64
100%
ADI AR 2218
<<locked>>
97%
51169
80%
**61
97%
ADI AR 2225 👍
<<locked>>
97%
53751
84%
**51
100%
Accurate 3100
<<locked>>
87%
57159
90%
**69
100%
[Accurate 8700]*
<<locked>>
97%
40654
64%
**62
93%
Accurate MAGPRO
<<locked>>
87%
57145
90%
**67
99%
Alliant Reloder-19
<<locked>>
85%
57290
90%
**28
100%
Alliant Reloder-22
<<locked>>
87%
57058
89%
**58
100%
Alliant Reloder-23
<<locked>>
88%
57130
90%
**89
100%
Alliant Reloder-25
<<locked>>
92%
57014
89%
**54
100%
Alliant Reloder-26
<<locked>>
84%
57087
89%
**61
100%
Alliant Reloder-33
<<locked>>
97%
56797
89%
**00
98%
Alliant Reloder-50
<<locked>>
97%
48776
76%
**69
96%
Baschieri & Pellagri 109
<<locked>>
89%
57406
90%
**25
98%
Bofors RP15 👍
<<locked>>
90%
57363
90%
**54
100%
Bofors RP30 👍
<<locked>>
94%
57087
89%
**74
100%
Bofors RP5
<<locked>>
87%
57058
89%
**58
100%
Hodgdon H1000 👍
<<locked>>
96%
57319
90%
**64
100%
Hodgdon H4350
<<locked>>
83%
57043
89%
**76
100%
Hodgdon H4831
<<locked>>
90%
57072
89%
**18
99%
Hodgdon H4831 SC
<<locked>>
87%
57072
89%
**18
99%
Hodgdon Retumbo
<<locked>>
97%
53751
84%
**51
100%
Hodgdon TrailBoss
<<locked>>
97%
36216
57%
**88
100%
IMR 4831
<<locked>>
84%
57116
89%
**66
100%
IMR 4955 Enduron
<<locked>>
88%
56927
89%
**95
100%
IMR 7828 SSC
<<locked>>
87%
57348
90%
**71
100%
IMR 7977 Enduron
<<locked>>
93%
57290
90%
**56
95%
IMR 8133 Enduron
<<locked>>
97%
49110
77%
**59
99%
[Lovex D100]*
<<locked>>
96%
57276
90%
**82
94%
Lovex S071
<<locked>>
92%
57159
90%
**69
100%
Norma 217
<<locked>>
97%
50357
79%
**89
100%
Norma MRP
<<locked>>
85%
57203
90%
**64
100%
Ramshot Grand
<<locked>>
84%
57217
90%
**71
100%
Ramshot Magnum
<<locked>>
88%
57101
89%
**28
100%
ReloadSwiss RS 14
<<locked>>
96%
37043
58%
**27
100%
ReloadSwiss RS 76
<<locked>>
92%
57217
90%
**27
100%
ReloadSwiss RS 80
<<locked>>
94%
57377
90%
**07
100%
Rottweil R 904
<<locked>>
85%
57290
90%
**02
100%
Rottweil R 905
<<locked>>
85%
57334
90%
**25
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
42815
67%
**92
93%
[Shooters World 50 BMG]*
<<locked>>
96%
57276
90%
**82
94%
Somchem S361
<<locked>>
84%
57101
89%
**69
99%
Somchem S385
<<locked>>
85%
57174
90%
**89
100%
Vihtavuori N165
<<locked>>
90%
57174
90%
**79
100%
Vihtavuori N170
<<locked>>
97%
54114
85%
**59
96%
Vihtavuori N555
<<locked>>
85%
57261
90%
**99
100%
Vihtavuori N560
<<locked>>
87%
57334
90%
**87
100%
Vihtavuori N565
<<locked>>
91%
57246
90%
**51
100%
Vihtavuori N568
<<locked>>
94%
57058
89%
**90
99%
Vihtavuori N570
<<locked>>
95%
57348
90%
**30
98%
Winchester StaBALL HD
<<locked>>
88%
57072
89%
**74
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
50227
79%
**30
100%
ADI AR 2213
<<locked>>
81%
45397
71%
**71
98%
ADI AR 2217
<<locked>>
81%
33707
53%
**08
95%
[ADI AR 2218]*
<<locked>>
88%
36361
57%
**20
90%
ADI AR 2225
<<locked>>
81%
30937
48%
**79
97%
Accurate 3100
<<locked>>
81%
46064
72%
**95
100%
[Accurate 8700]*
<<locked>>
93%
35810
56%
**54
90%
Accurate MAGPRO
<<locked>>
81%
45498
71%
**67
97%
Alliant Reloder-19
<<locked>>
81%
50096
79%
**17
100%
Alliant Reloder-22
<<locked>>
81%
46093
72%
**77
99%
Alliant Reloder-23
<<locked>>
81%
44730
70%
**08
100%
Alliant Reloder-25
<<locked>>
81%
38653
61%
**49
100%
Alliant Reloder-26
<<locked>>
81%
51155
80%
**79
100%
[Alliant Reloder-33]*
<<locked>>
84%
34490
54%
**67
90%
[Alliant Reloder-50]*
<<locked>>
89%
35563
56%
**87
90%
Baschieri & Pellagri 109
<<locked>>
81%
43540
68%
**75
95%
Bofors RP15
<<locked>>
81%
42757
67%
**12
98%
Bofors RP30
<<locked>>
81%
36187
57%
**90
96%
Bofors RP5
<<locked>>
81%
46093
72%
**77
99%
Hodgdon H1000
<<locked>>
81%
33707
53%
**08
95%
Hodgdon H4350
<<locked>>
81%
53229
83%
**23
100%
Hodgdon H4831
<<locked>>
81%
42264
66%
**56
97%
Hodgdon H4831 SC
<<locked>>
81%
47195
74%
**51
98%
Hodgdon Retumbo
<<locked>>
81%
30937
48%
**79
97%
Hodgdon TrailBoss
<<locked>>
82%
29124
46%
**40
100%
IMR 4831
<<locked>>
81%
51459
81%
**90
100%
IMR 4955 Enduron
<<locked>>
81%
46064
72%
**05
98%
IMR 7828 SSC
<<locked>>
81%
46876
73%
**10
99%
[IMR 7977 Enduron]*
<<locked>>
83%
42047
66%
**90
90%
[IMR 8133 Enduron]*
<<locked>>
81%
28369
44%
**00
91%
[Lovex D100]*
<<locked>>
90%
45339
71%
**89
90%
Lovex S071
<<locked>>
81%
39523
62%
**80
99%
[Norma 217]*
<<locked>>
81%
28514
45%
**26
94%
Norma MRP
<<locked>>
81%
49168
77%
**46
100%
Ramshot Grand
<<locked>>
81%
50183
79%
**72
99%
Ramshot Magnum
<<locked>>
81%
44135
69%
**25
99%
ReloadSwiss RS 14
<<locked>>
81%
29617
46%
**77
100%
ReloadSwiss RS 76
<<locked>>
81%
37347
59%
**69
99%
[ReloadSwiss RS 80]*
<<locked>>
81%
34142
53%
**54
93%
Rottweil R 904
<<locked>>
81%
50865
80%
**00
99%
Rottweil R 905
<<locked>>
81%
49719
78%
**10
100%
[SNPE Vectan SP 13]*
<<locked>>
92%
36216
57%
**48
90%
[Shooters World 50 BMG]*
<<locked>>
90%
45339
71%
**89
90%
Somchem S361
<<locked>>
81%
51982
81%
**84
99%
Somchem S385
<<locked>>
81%
50198
79%
**87
100%
Vihtavuori N165
<<locked>>
81%
42511
67%
**39
99%
[Vihtavuori N170]*
<<locked>>
85%
37507
59%
**41
90%
Vihtavuori N555
<<locked>>
81%
49690
78%
**90
100%
Vihtavuori N560
<<locked>>
81%
46209
72%
**94
98%
Vihtavuori N565
<<locked>>
81%
40437
63%
**59
97%
[Vihtavuori N568]*
<<locked>>
81%
35404
55%
**77
93%
[Vihtavuori N570]*
<<locked>>
82%
35592
56%
**03
90%
Winchester StaBALL HD
<<locked>>
81%
43308
68%
**71
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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