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Load data for .378 Weath. Mag. + .375 | 250gr | CutEdge Maximus

Recommended Powder(s): Alliant Reloder-26, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70

.378 Weath. Mag. + .375 | 250gr | CutEdge Maximus

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 250gr | CutEdge Maximus
Manufacturer SKU:
Maximus
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.355" | 34.4mm
Caliber:
.378 Weath. Mag. load data
Case Length (l3):
2.913" | 74.0mm
Cartridge Length (C.O.L.):
3.600" | 91.4mm
Seated Depth:
0.668" | 17.0mm
Shank Seated Depth:
0.388" | 9.9mm
Case Capacity:
137.0 Grains of Water | 8.90 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B8553_C577
Last updated:
2025-02-02

Load data for 158 loads in caliber .378 Weath. Mag. with .375 | 250gr | CutEdge Maximus bullet and 79 powders such as Alliant Reloder-26, Hodgdon Superperformance, Ramshot Hunter, 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".

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    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.

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 2208
<<locked>>
86%
57043
89%
**33
100%
ADI AR 2209
<<locked>>
96%
57072
89%
**31
98%
ADI AR 2213
<<locked>>
97%
52011
81%
**79
96%
[ADI AR 2225]*
<<locked>>
97%
33112
52%
**85
92%
Accurate 2700
<<locked>>
87%
57130
90%
**00
99%
Accurate 3100
<<locked>>
97%
51169
80%
**84
99%
Accurate 4064
<<locked>>
84%
57188
90%
**07
100%
Accurate 4350
<<locked>>
91%
57232
90%
**05
100%
[Accurate MAGPRO]*
<<locked>>
97%
50372
79%
**56
94%
Alliant Reloder- TS 15.5
<<locked>>
85%
57246
90%
**46
100%
Alliant Reloder-15
<<locked>>
83%
57203
90%
**69
100%
Alliant Reloder-16
<<locked>>
92%
56956
89%
**41
100%
Alliant Reloder-17
<<locked>>
88%
57087
89%
**48
100%
Alliant Reloder-19
<<locked>>
97%
57363
90%
**28
99%
Alliant Reloder-22
<<locked>>
97%
51155
80%
**69
98%
Alliant Reloder-23
<<locked>>
97%
48327
76%
**10
100%
Alliant Reloder-25
<<locked>>
97%
41974
66%
**25
99%
Alliant Reloder-26 👍
<<locked>>
97%
55840
88%
**07
100%
Hodgdon CFE223
<<locked>>
83%
57421
90%
**02
100%
Hodgdon H380
<<locked>>
85%
57377
90%
**72
100%
Hodgdon H414
<<locked>>
87%
57421
90%
**28
100%
Hodgdon H4350
<<locked>>
94%
57217
90%
**66
99%
Hodgdon H4831
<<locked>>
97%
47805
75%
**44
95%
Hodgdon H4831 SC
<<locked>>
97%
54621
86%
**63
96%
Hodgdon Hybrid 100V
<<locked>>
94%
57290
90%
**69
100%
Hodgdon LVR
<<locked>>
90%
57072
89%
**02
100%
[Hodgdon Retumbo]*
<<locked>>
97%
33112
52%
**85
92%
Hodgdon Superperformance 👍
<<locked>>
90%
57159
90%
**54
99%
Hodgdon VARGET
<<locked>>
86%
57043
89%
**33
100%
Hodgdon TrailBoss
<<locked>>
97%
34998
55%
**14
100%
IMR 4064
<<locked>>
86%
57116
89%
**30
100%
IMR 4166 Enduron
<<locked>>
87%
57130
90%
**27
99%
IMR 4350
<<locked>>
92%
57203
90%
**72
99%
IMR 4451 Enduron
<<locked>>
88%
57232
90%
**56
99%
IMR 4831
<<locked>>
96%
56985
89%
**86
100%
IMR 4955 Enduron
<<locked>>
97%
53243
83%
**00
96%
IMR 7828 SSC
<<locked>>
97%
53563
84%
**22
97%
Lovex S062
<<locked>>
84%
57261
90%
**17
100%
Lovex S065
<<locked>>
90%
57305
90%
**43
100%
Lovex S070
<<locked>>
91%
57377
90%
**72
100%
Lovex S071
<<locked>>
97%
42380
66%
**26
98%
Norma 203B
<<locked>>
83%
56927
89%
**59
100%
Norma 204
<<locked>>
92%
56826
89%
**99
98%
Norma MRP
<<locked>>
97%
54012
85%
**45
99%
Norma URP
<<locked>>
92%
56913
89%
**99
100%
Ramshot Hunter 👍
<<locked>>
92%
57421
90%
**31
100%
Ramshot Magnum
<<locked>>
97%
49429
77%
**27
98%
ReloadSwiss RS 14
<<locked>>
97%
35505
56%
**54
100%
ReloadSwiss RS 50
<<locked>>
85%
56971
89%
**46
100%
ReloadSwiss RS 52
<<locked>>
83%
57159
90%
**72
100%
ReloadSwiss RS 60
<<locked>>
89%
57406
90%
**74
100%
ReloadSwiss RS 62 👍
<<locked>>
91%
57363
90%
**28
100%
ReloadSwiss RS 70 👍
<<locked>>
92%
57363
90%
**74
100%
ReloadSwiss RS 76
<<locked>>
97%
40408
63%
**18
96%
Rottweil R 903
<<locked>>
87%
56913
89%
**46
100%
Rottweil R 904
<<locked>>
96%
57406
90%
**79
98%
Rottweil R 905
<<locked>>
97%
56202
88%
**12
99%
Rottweil R 907
<<locked>>
89%
57087
89%
**43
99%
SNPE Vectan SP 11
<<locked>>
86%
57377
90%
**89
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
57276
90%
**18
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
57188
90%
**07
99%
Shooters World Long Rifle
<<locked>>
90%
57305
90%
**43
100%
Shooters World Precision
<<locked>>
84%
57261
90%
**17
100%
Somchem S355
<<locked>>
87%
56927
89%
**40
100%
Somchem S361
<<locked>>
95%
57116
89%
**43
97%
Somchem S365
<<locked>>
94%
57101
89%
**09
100%
Somchem S385
<<locked>>
97%
57203
90%
**95
99%
Vihtavuori N135
<<locked>>
88%
57392
90%
**51
100%
Vihtavuori N150
<<locked>>
92%
56956
89%
**04
100%
Vihtavuori N160
<<locked>>
89%
57217
90%
**69
100%
Vihtavuori N165
<<locked>>
97%
47427
74%
**15
97%
Vihtavuori N540
<<locked>>
83%
57058
89%
**00
100%
Vihtavuori N550
<<locked>>
89%
57087
89%
**05
100%
Vihtavuori N555
<<locked>>
97%
53664
84%
**82
100%
Vihtavuori N560
<<locked>>
97%
51329
80%
**95
96%
[Vihtavuori N565]*
<<locked>>
97%
43439
68%
**25
94%
Winchester 6.5 StaBALL
<<locked>>
91%
57276
90%
**36
100%
Winchester 760
<<locked>>
87%
57421
90%
**28
100%
Winchester StaBALL HD
<<locked>>
97%
43685
68%
**56
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
49371
77%
**12
100%
[ADI AR 2209]*
<<locked>>
81%
33939
53%
**52
91%
[ADI AR 2213]*
<<locked>>
86%
35694
56%
**15
90%
[ADI AR 2225]*
<<locked>>
94%
30168
47%
**93
90%
Accurate 2700
<<locked>>
81%
47427
74%
**40
97%
[Accurate 3100]*
<<locked>>
81%
29138
46%
**08
93%
Accurate 4064
<<locked>>
81%
51967
81%
**28
100%
Accurate 4350
<<locked>>
81%
40103
63%
**97
99%
[Accurate MAGPRO]*
<<locked>>
91%
40103
63%
**53
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
49951
78%
**35
100%
Alliant Reloder-15
<<locked>>
81%
53417
84%
**13
100%
Alliant Reloder-16
<<locked>>
81%
38957
61%
**10
99%
Alliant Reloder-17
<<locked>>
81%
44527
70%
**38
100%
[Alliant Reloder-19]*
<<locked>>
81%
33881
53%
**49
92%
[Alliant Reloder-22]*
<<locked>>
83%
31212
49%
**16
90%
Alliant Reloder-23
<<locked>>
81%
28282
44%
**41
96%
[Alliant Reloder-25]*
<<locked>>
83%
26194
41%
**72
90%
Alliant Reloder-26
<<locked>>
81%
30400
48%
**62
95%
Hodgdon CFE223
<<locked>>
81%
52997
83%
**33
100%
Hodgdon H380
<<locked>>
81%
50647
79%
**61
100%
Hodgdon H414
<<locked>>
81%
46093
72%
**25
98%
Hodgdon H4350
<<locked>>
81%
37565
59%
**95
95%
[Hodgdon H4831]*
<<locked>>
89%
36492
57%
**95
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
36492
57%
**95
90%
Hodgdon Hybrid 100V
<<locked>>
81%
36419
57%
**95
99%
Hodgdon LVR
<<locked>>
81%
43047
67%
**56
99%
[Hodgdon Retumbo]*
<<locked>>
94%
30168
47%
**93
90%
Hodgdon Superperformance
<<locked>>
81%
41307
65%
**59
96%
Hodgdon VARGET
<<locked>>
81%
48921
77%
**05
100%
Hodgdon TrailBoss
<<locked>>
81%
27717
43%
**60
100%
IMR 4064
<<locked>>
81%
48370
76%
**85
100%
IMR 4166 Enduron
<<locked>>
81%
47471
74%
**59
98%
IMR 4350
<<locked>>
81%
39494
62%
**35
95%
IMR 4451 Enduron
<<locked>>
81%
45600
71%
**53
98%
IMR 4831
<<locked>>
81%
34679
54%
**62
97%
[IMR 4955 Enduron]*
<<locked>>
84%
35563
56%
**39
90%
[IMR 7828 SSC]*
<<locked>>
86%
35926
56%
**28
90%
Lovex S062
<<locked>>
81%
51967
81%
**41
100%
Lovex S065
<<locked>>
81%
42699
67%
**97
98%
Lovex S070
<<locked>>
81%
41089
64%
**74
97%
[Lovex S071]*
<<locked>>
82%
25266
40%
**93
90%
Norma 203B
<<locked>>
81%
52649
82%
**94
100%
[Norma 204]*
<<locked>>
81%
39015
61%
**67
94%
[Norma MRP]*
<<locked>>
81%
30661
48%
**23
91%
Norma URP
<<locked>>
81%
39755
62%
**90
99%
Ramshot Hunter
<<locked>>
81%
38609
61%
**74
97%
[Ramshot Magnum]*
<<locked>>
84%
30385
48%
**80
90%
ReloadSwiss RS 14
<<locked>>
81%
28210
44%
**99
100%
ReloadSwiss RS 50
<<locked>>
81%
50676
79%
**48
99%
ReloadSwiss RS 52
<<locked>>
81%
52707
83%
**10
100%
ReloadSwiss RS 60
<<locked>>
81%
42960
67%
**25
100%
ReloadSwiss RS 62
<<locked>>
81%
39972
63%
**17
98%
ReloadSwiss RS 70
<<locked>>
81%
38696
61%
**23
98%
[ReloadSwiss RS 76]*
<<locked>>
89%
30501
48%
**33
90%
Rottweil R 903
<<locked>>
81%
47326
74%
**92
100%
[Rottweil R 904]*
<<locked>>
81%
35389
55%
**49
91%
[Rottweil R 905]*
<<locked>>
81%
32721
51%
**30
91%
Rottweil R 907
<<locked>>
81%
44005
69%
**20
97%
SNPE Vectan SP 11
<<locked>>
81%
48617
76%
**51
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48443
76%
**94
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41930
66%
**31
97%
Shooters World Long Rifle
<<locked>>
81%
42699
67%
**97
98%
Shooters World Precision
<<locked>>
81%
51967
81%
**41
100%
Somchem S355
<<locked>>
81%
47514
74%
**89
100%
[Somchem S361]*
<<locked>>
81%
36100
57%
**39
90%
Somchem S365
<<locked>>
81%
36114
57%
**44
100%
[Somchem S385]*
<<locked>>
81%
33199
52%
**13
93%
Vihtavuori N135
<<locked>>
81%
46282
73%
**97
100%
Vihtavuori N150
<<locked>>
81%
40596
64%
**28
100%
Vihtavuori N160
<<locked>>
81%
42931
67%
**23
99%
[Vihtavuori N165]*
<<locked>>
83%
29356
46%
**05
90%
Vihtavuori N540
<<locked>>
81%
53359
84%
**41
100%
Vihtavuori N550
<<locked>>
81%
43700
68%
**66
99%
Vihtavuori N555
<<locked>>
81%
31444
49%
**20
97%
[Vihtavuori N560]*
<<locked>>
87%
36201
57%
**61
90%
[Vihtavuori N565]*
<<locked>>
91%
35462
56%
**35
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40553
64%
**67
100%
Winchester 760
<<locked>>
81%
46093
72%
**25
98%
Winchester StaBALL HD
<<locked>>
81%
24772
39%
**95
95%

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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