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Load data for .378 Weath. Mag. + .375 | 350gr | Woodleigh RN SN

Recommended Powder(s): ADI AR 2213, IMR 7828 SSC, Ramshot Grand, ReloadSwiss RS 76, Vihtavuori N560

.378 Weath. Mag. + .375 | 350gr | Woodleigh RN SN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 350gr | Woodleigh RN SN
Manufacturer SKU:
46BHD
Bullet Weight:
350gr | 22.7g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
<<locked>>
Caliber:
.378 Weath. Mag. load data
Case Length (l3):
2.913" | 74.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B12065_C577
Last updated:
2026-01-22

Load data for 130 loads in caliber .378 Weath. Mag. with .375 | 350gr | Woodleigh RN SN bullet and 65 powders such as ADI AR 2213, IMR 7828 SSC, Ramshot Grand, ReloadSwiss RS 76, Vihtavuori N560. 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>>
90%
57363
90%
**75
100%
ADI AR 2213 👍
<<locked>>
93%
57348
90%
**25
100%
ADI AR 2217
<<locked>>
97%
47718
75%
**80
99%
[ADI AR 2218]*
<<locked>>
97%
40944
64%
**15
92%
ADI AR 2225
<<locked>>
97%
42960
67%
**54
100%
Accurate 3100
<<locked>>
93%
57305
90%
**26
100%
Accurate 4350
<<locked>>
84%
57145
90%
**23
100%
Accurate MAGPRO
<<locked>>
93%
57319
90%
**41
99%
Alliant Reloder-16
<<locked>>
86%
57261
90%
**56
100%
Alliant Reloder-19
<<locked>>
90%
57246
90%
**72
100%
Alliant Reloder-22
<<locked>>
93%
57000
89%
**05
100%
Alliant Reloder-23
<<locked>>
94%
57377
90%
**59
100%
Alliant Reloder-25
<<locked>>
97%
54012
85%
**85
100%
Alliant Reloder-26
<<locked>>
90%
57087
89%
**31
100%
Alliant Reloder-33
<<locked>>
97%
44135
69%
**84
95%
Baschieri & Pellagri 109
<<locked>>
95%
57421
90%
**72
98%
Bofors RP15
<<locked>>
95%
57319
90%
**15
100%
Bofors RP30
<<locked>>
97%
50430
79%
**49
99%
Bofors RP5
<<locked>>
93%
57000
89%
**05
100%
Bofors RP7
<<locked>>
83%
57377
90%
**97
100%
Hodgdon H1000
<<locked>>
97%
47718
75%
**80
99%
Hodgdon H4350
<<locked>>
88%
56898
89%
**13
100%
Hodgdon H4831
<<locked>>
95%
57101
89%
**66
99%
Hodgdon H4831 SC
<<locked>>
92%
57101
89%
**66
99%
Hodgdon Hybrid 100V
<<locked>>
87%
57058
89%
**84
100%
Hodgdon Retumbo
<<locked>>
97%
42960
67%
**54
100%
Hodgdon Superperformance
<<locked>>
83%
57087
89%
**82
100%
IMR 4350
<<locked>>
86%
57232
90%
**13
100%
IMR 4831
<<locked>>
89%
57392
90%
**10
100%
IMR 4955 Enduron
<<locked>>
93%
57217
90%
**33
99%
IMR 7828 SSC 👍
<<locked>>
92%
57348
90%
**28
100%
[IMR 7977 Enduron]*
<<locked>>
97%
55840
87%
**77
94%
IMR 8133 Enduron
<<locked>>
97%
38899
61%
**72
97%
Lovex S065
<<locked>>
84%
57029
89%
**80
100%
Lovex S070
<<locked>>
85%
56869
89%
**07
100%
Lovex S071
<<locked>>
97%
55085
86%
**97
100%
Norma 204
<<locked>>
86%
57246
90%
**52
100%
Norma 217
<<locked>>
97%
38856
61%
**95
99%
Norma MRP
<<locked>>
91%
57392
90%
**31
100%
Norma URP
<<locked>>
85%
57130
90%
**23
100%
Ramshot Grand 👍
<<locked>>
90%
57188
90%
**38
100%
Ramshot Hunter
<<locked>>
86%
57421
90%
**59
100%
Ramshot Magnum
<<locked>>
94%
57392
90%
**98
100%
ReloadSwiss RS 62
<<locked>>
84%
57261
90%
**49
100%
ReloadSwiss RS 70
<<locked>>
85%
57101
89%
**92
100%
ReloadSwiss RS 76 👍
<<locked>>
97%
53171
83%
**51
100%
ReloadSwiss RS 80
<<locked>>
97%
48631
76%
**59
98%
Rottweil R 904
<<locked>>
89%
57363
90%
**36
100%
Rottweil R 905
<<locked>>
90%
57377
90%
**69
100%
Rottweil R 907
<<locked>>
83%
57377
90%
**97
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
57232
90%
**61
100%
Shooters World Long Rifle
<<locked>>
84%
57029
89%
**80
100%
Somchem S361
<<locked>>
88%
57130
90%
**10
99%
Somchem S365
<<locked>>
87%
57406
90%
**26
100%
Somchem S385
<<locked>>
90%
57043
89%
**36
100%
Vihtavuori N150
<<locked>>
85%
57101
89%
**31
100%
Vihtavuori N165
<<locked>>
95%
56826
89%
**23
100%
[Vihtavuori N170]*
<<locked>>
97%
44759
70%
**72
93%
Vihtavuori N555
<<locked>>
91%
57159
90%
**46
100%
Vihtavuori N560 👍
<<locked>>
93%
56956
89%
**38
100%
Vihtavuori N565
<<locked>>
97%
56507
89%
**08
100%
Vihtavuori N568
<<locked>>
97%
49676
78%
**56
98%
Vihtavuori N570
<<locked>>
97%
47558
75%
**59
96%
Winchester 6.5 StaBALL
<<locked>>
84%
56884
89%
**64
100%
Winchester StaBALL HD
<<locked>>
95%
57145
90%
**61
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
42772
67%
**52
99%
ADI AR 2213
<<locked>>
81%
38218
60%
**00
96%
[ADI AR 2217]*
<<locked>>
81%
28529
45%
**64
92%
[ADI AR 2218]*
<<locked>>
94%
37014
58%
**26
90%
[ADI AR 2225]*
<<locked>>
81%
25788
40%
**31
94%
Accurate 3100
<<locked>>
81%
38638
61%
**44
100%
Accurate 4350
<<locked>>
81%
51474
81%
**48
100%
[Accurate MAGPRO]*
<<locked>>
81%
37463
59%
**93
94%
Alliant Reloder-16
<<locked>>
81%
49255
77%
**51
100%
Alliant Reloder-19
<<locked>>
81%
42786
67%
**49
99%
Alliant Reloder-22
<<locked>>
81%
38493
60%
**03
98%
Alliant Reloder-23
<<locked>>
81%
37188
58%
**57
100%
Alliant Reloder-25
<<locked>>
81%
32213
50%
**95
99%
Alliant Reloder-26
<<locked>>
81%
40901
64%
**98
100%
[Alliant Reloder-33]*
<<locked>>
89%
33794
53%
**64
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
37913
59%
**31
93%
Bofors RP15
<<locked>>
81%
35969
56%
**54
97%
[Bofors RP30]*
<<locked>>
81%
29486
46%
**33
93%
Bofors RP5
<<locked>>
81%
38493
60%
**03
98%
Bofors RP7
<<locked>>
81%
53548
84%
**51
100%
[Hodgdon H1000]*
<<locked>>
81%
28529
45%
**64
92%
Hodgdon H4350
<<locked>>
81%
46267
73%
**56
100%
Hodgdon H4831
<<locked>>
81%
36100
57%
**05
95%
Hodgdon H4831 SC
<<locked>>
81%
40089
63%
**90
96%
Hodgdon Hybrid 100V
<<locked>>
81%
46354
73%
**46
100%
[Hodgdon Retumbo]*
<<locked>>
81%
25788
40%
**31
94%
Hodgdon Superperformance
<<locked>>
81%
53011
83%
**26
100%
IMR 4350
<<locked>>
81%
48747
76%
**92
100%
IMR 4831
<<locked>>
81%
44440
70%
**33
100%
IMR 4955 Enduron
<<locked>>
81%
39914
63%
**54
96%
IMR 7828 SSC
<<locked>>
81%
39044
61%
**26
97%
[IMR 7977 Enduron]*
<<locked>>
88%
42496
67%
**67
90%
[IMR 8133 Enduron]*
<<locked>>
84%
25875
41%
**41
90%
Lovex S065
<<locked>>
81%
52243
82%
**21
100%
Lovex S070
<<locked>>
81%
50720
79%
**21
100%
Lovex S071
<<locked>>
81%
33344
52%
**36
99%
Norma 204
<<locked>>
81%
48907
77%
**38
99%
[Norma 217]*
<<locked>>
81%
23221
36%
**78
91%
Norma MRP
<<locked>>
81%
40263
63%
**65
99%
Norma URP
<<locked>>
81%
50183
79%
**31
100%
Ramshot Grand
<<locked>>
81%
40843
64%
**72
98%
Ramshot Hunter
<<locked>>
81%
48878
77%
**38
100%
Ramshot Magnum
<<locked>>
81%
35636
56%
**51
98%
ReloadSwiss RS 62
<<locked>>
81%
51256
80%
**70
100%
ReloadSwiss RS 70
<<locked>>
81%
49588
78%
**97
100%
ReloadSwiss RS 76
<<locked>>
81%
30211
47%
**92
96%
[ReloadSwiss RS 80]*
<<locked>>
82%
28631
45%
**36
90%
Rottweil R 904
<<locked>>
81%
44063
69%
**29
98%
Rottweil R 905
<<locked>>
81%
42119
66%
**33
99%
Rottweil R 907
<<locked>>
81%
53548
84%
**51
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
51184
80%
**82
100%
Shooters World Long Rifle
<<locked>>
81%
52243
82%
**21
100%
Somchem S361
<<locked>>
81%
44744
70%
**26
97%
Somchem S365
<<locked>>
81%
47485
74%
**98
100%
Somchem S385
<<locked>>
81%
42757
67%
**23
99%
Vihtavuori N150
<<locked>>
81%
50111
79%
**43
100%
Vihtavuori N165
<<locked>>
81%
36187
57%
**95
98%
[Vihtavuori N170]*
<<locked>>
91%
37362
59%
**28
90%
Vihtavuori N555
<<locked>>
81%
41597
65%
**26
100%
Vihtavuori N560
<<locked>>
81%
38464
60%
**20
96%
[Vihtavuori N565]*
<<locked>>
81%
33228
52%
**98
94%
[Vihtavuori N568]*
<<locked>>
82%
29689
47%
**46
90%
[Vihtavuori N570]*
<<locked>>
88%
34780
54%
**90
90%
Winchester 6.5 StaBALL
<<locked>>
81%
50604
79%
**92
100%
Winchester StaBALL HD
<<locked>>
81%
33533
53%
**97
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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