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Load data for .375 Swiss P + .375 | 255gr | Winchester Soft-Point

Recommended Powder(s): Alliant Reloder-16, Norma URP, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70

.375 Swiss P + .375 | 255gr | Winchester Soft-Point

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 255gr | Winchester Soft-Point
Bullet Weight:
255gr | 16.5g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.000" | 25.4mm
Caliber:
.375 Swiss P load data
Case Length (l3):
2.750" | 69.8mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.124" | 3.2mm
Shank Seated Depth:
0.124" | 3.2mm
Case Capacity:
125.0 Grains of Water | 8.12 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
60916 psi | 4200 bar
LID:
LID_B6655_C569
Last updated:
2025-02-02

Load data for 138 loads in caliber .375 Swiss P with .375 | 255gr | Winchester Soft-Point bullet and 69 powders such as Alliant Reloder-16, Norma URP, 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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  • 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 2208
<<locked>>
85%
54650
90%
**51
100%
ADI AR 2209
<<locked>>
96%
54694
90%
**36
98%
ADI AR 2213
<<locked>>
97%
50575
83%
**00
96%
Accurate 2700
<<locked>>
86%
54534
90%
**08
98%
Accurate 3100
<<locked>>
97%
50343
83%
**25
99%
Accurate 4350
<<locked>>
90%
54346
89%
**04
100%
[Accurate MAGPRO]*
<<locked>>
97%
48936
80%
**84
93%
Alliant Reloder- TS 15.5
<<locked>>
84%
54650
90%
**67
100%
Alliant Reloder-16 👍
<<locked>>
92%
54505
89%
**56
100%
Alliant Reloder-17
<<locked>>
87%
54433
89%
**63
100%
Alliant Reloder-19
<<locked>>
96%
54723
90%
**43
98%
Alliant Reloder-22
<<locked>>
97%
49792
82%
**97
97%
Alliant Reloder-23
<<locked>>
97%
46992
77%
**35
100%
Alliant Reloder-25
<<locked>>
97%
41118
68%
**49
98%
Alliant Reloder-26
<<locked>>
97%
54056
89%
**31
100%
Hodgdon H380
<<locked>>
83%
54476
89%
**77
100%
Hodgdon H414
<<locked>>
86%
54723
90%
**36
99%
Hodgdon H4350
<<locked>>
93%
54230
89%
**74
99%
[Hodgdon H4831]*
<<locked>>
97%
47094
77%
**72
94%
Hodgdon H4831 SC
<<locked>>
97%
53084
87%
**87
96%
Hodgdon Hybrid 100V
<<locked>>
94%
54534
90%
**74
100%
Hodgdon LVR
<<locked>>
89%
54781
90%
**13
100%
Hodgdon Superperformance
<<locked>>
89%
54621
90%
**59
99%
Hodgdon VARGET
<<locked>>
85%
54650
90%
**51
100%
Hodgdon TrailBoss
<<locked>>
96%
34853
57%
**75
100%
IMR 4064
<<locked>>
85%
54549
90%
**41
100%
IMR 4166 Enduron
<<locked>>
86%
54346
89%
**35
99%
IMR 4350
<<locked>>
92%
54708
90%
**77
99%
IMR 4451 Enduron
<<locked>>
87%
54592
90%
**61
99%
IMR 4831
<<locked>>
95%
54505
89%
**04
100%
IMR 4955 Enduron
<<locked>>
97%
52402
86%
**35
96%
IMR 7828 SSC
<<locked>>
97%
52141
86%
**36
96%
Lovex S065
<<locked>>
89%
54346
89%
**48
100%
Lovex S070
<<locked>>
90%
54534
90%
**81
99%
Lovex S071
<<locked>>
97%
41771
69%
**74
98%
Norma 204
<<locked>>
91%
54708
90%
**13
98%
Norma MRP
<<locked>>
97%
53142
87%
**89
99%
Norma URP 👍
<<locked>>
91%
54708
90%
**17
100%
Ramshot Hunter 👍
<<locked>>
92%
54650
90%
**33
99%
Ramshot Magnum
<<locked>>
97%
48501
80%
**61
97%
ReloadSwiss RS 14
<<locked>>
96%
35433
58%
**14
100%
ReloadSwiss RS 50
<<locked>>
84%
54766
90%
**64
99%
ReloadSwiss RS 60
<<locked>>
88%
54346
89%
**86
100%
ReloadSwiss RS 62 👍
<<locked>>
90%
54346
89%
**33
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
54447
89%
**82
100%
ReloadSwiss RS 76
<<locked>>
97%
39914
66%
**59
96%
Rottweil R 903
<<locked>>
86%
54694
90%
**58
100%
Rottweil R 904
<<locked>>
95%
54636
90%
**81
97%
Rottweil R 905
<<locked>>
96%
54433
89%
**30
98%
Rottweil R 907
<<locked>>
88%
54346
89%
**54
99%
SNPE Vectan SP 11
<<locked>>
85%
54375
89%
**90
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
54418
89%
**33
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
54433
89%
**08
99%
Shooters World Long Rifle
<<locked>>
89%
54346
89%
**48
100%
Somchem S355
<<locked>>
86%
54636
90%
**58
100%
Somchem S361
<<locked>>
94%
54694
90%
**48
96%
Somchem S365
<<locked>>
93%
54447
89%
**30
100%
Somchem S385
<<locked>>
96%
54766
90%
**04
99%
Vihtavuori N135
<<locked>>
87%
54505
89%
**69
100%
Vihtavuori N150
<<locked>>
91%
54476
89%
**22
100%
Vihtavuori N160
<<locked>>
89%
54781
90%
**81
100%
Vihtavuori N165
<<locked>>
97%
46760
77%
**59
97%
Vihtavuori N550
<<locked>>
88%
54810
90%
**20
100%
Vihtavuori N555
<<locked>>
97%
52837
87%
**17
100%
Vihtavuori N560
<<locked>>
97%
50169
82%
**23
95%
[Vihtavuori N565]*
<<locked>>
97%
42453
70%
**53
93%
Winchester 6.5 StaBALL
<<locked>>
90%
54534
90%
**58
100%
Winchester 760
<<locked>>
86%
54723
90%
**36
99%
Winchester StaBALL HD
<<locked>>
97%
42148
69%
**97
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
48805
80%
**53
100%
[ADI AR 2209]*
<<locked>>
81%
33692
55%
**00
91%
[ADI AR 2213]*
<<locked>>
87%
36883
61%
**95
90%
Accurate 2700
<<locked>>
81%
47079
77%
**77
97%
[Accurate 3100]*
<<locked>>
81%
29182
48%
**72
92%
Accurate 4350
<<locked>>
81%
39769
65%
**44
98%
[Accurate MAGPRO]*
<<locked>>
92%
41162
68%
**26
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
49139
81%
**72
100%
Alliant Reloder-16
<<locked>>
81%
38566
63%
**54
98%
Alliant Reloder-17
<<locked>>
81%
43874
72%
**85
100%
[Alliant Reloder-19]*
<<locked>>
81%
33489
55%
**93
91%
[Alliant Reloder-22]*
<<locked>>
84%
32169
53%
**97
90%
Alliant Reloder-23
<<locked>>
81%
28297
46%
**02
96%
[Alliant Reloder-25]*
<<locked>>
83%
26745
44%
**49
90%
[Alliant Reloder-26]*
<<locked>>
81%
30168
50%
**03
94%
Hodgdon H380
<<locked>>
81%
50270
83%
**05
100%
Hodgdon H414
<<locked>>
81%
45295
74%
**62
97%
[Hodgdon H4350]*
<<locked>>
81%
37188
61%
**39
94%
[Hodgdon H4831]*
<<locked>>
90%
37782
62%
**82
90%
[Hodgdon H4831 SC]*
<<locked>>
86%
37637
62%
**72
90%
Hodgdon Hybrid 100V
<<locked>>
81%
36056
59%
**43
99%
Hodgdon LVR
<<locked>>
81%
42511
70%
**97
98%
Hodgdon Superperformance
<<locked>>
81%
40727
67%
**00
96%
Hodgdon VARGET
<<locked>>
81%
48443
80%
**46
100%
Hodgdon TrailBoss
<<locked>>
83%
28456
47%
**40
100%
IMR 4064
<<locked>>
81%
47863
79%
**26
100%
IMR 4166 Enduron
<<locked>>
81%
46905
77%
**07
98%
IMR 4350
<<locked>>
81%
39175
64%
**82
95%
IMR 4451 Enduron
<<locked>>
81%
45179
74%
**97
97%
IMR 4831
<<locked>>
81%
34519
57%
**07
97%
[IMR 4955 Enduron]*
<<locked>>
85%
36724
60%
**16
90%
[IMR 7828 SSC]*
<<locked>>
86%
36448
60%
**02
90%
Lovex S065
<<locked>>
81%
42540
70%
**38
98%
Lovex S070
<<locked>>
81%
40770
67%
**21
96%
[Lovex S071]*
<<locked>>
82%
25773
42%
**67
90%
[Norma 204]*
<<locked>>
81%
38595
63%
**02
93%
[Norma MRP]*
<<locked>>
81%
30647
50%
**84
91%
Norma URP
<<locked>>
81%
39407
65%
**41
98%
Ramshot Hunter
<<locked>>
81%
38247
63%
**25
96%
[Ramshot Magnum]*
<<locked>>
85%
31169
51%
**57
90%
ReloadSwiss RS 14
<<locked>>
81%
28311
46%
**63
100%
ReloadSwiss RS 50
<<locked>>
81%
50328
83%
**92
99%
ReloadSwiss RS 60
<<locked>>
81%
42380
70%
**72
100%
ReloadSwiss RS 62
<<locked>>
81%
39450
65%
**61
98%
ReloadSwiss RS 70
<<locked>>
81%
38189
63%
**64
97%
[ReloadSwiss RS 76]*
<<locked>>
90%
31401
52%
**13
90%
Rottweil R 903
<<locked>>
81%
46891
77%
**33
100%
[Rottweil R 904]*
<<locked>>
81%
35085
58%
**87
90%
[Rottweil R 905]*
<<locked>>
81%
32576
53%
**74
91%
Rottweil R 907
<<locked>>
81%
43787
72%
**57
96%
SNPE Vectan SP 11
<<locked>>
81%
48196
79%
**89
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48008
79%
**41
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41626
68%
**85
97%
Shooters World Long Rifle
<<locked>>
81%
42540
70%
**38
98%
Somchem S355
<<locked>>
81%
47065
77%
**33
100%
[Somchem S361]*
<<locked>>
82%
37463
61%
**16
90%
Somchem S365
<<locked>>
81%
35810
59%
**92
100%
[Somchem S385]*
<<locked>>
81%
33098
54%
**70
92%
Vihtavuori N135
<<locked>>
81%
45890
75%
**44
100%
Vihtavuori N150
<<locked>>
81%
40466
66%
**82
100%
Vihtavuori N160
<<locked>>
81%
42496
70%
**71
99%
[Vihtavuori N165]*
<<locked>>
84%
30530
50%
**88
90%
Vihtavuori N550
<<locked>>
81%
43163
71%
**10
99%
Vihtavuori N555
<<locked>>
81%
31227
51%
**77
96%
[Vihtavuori N560]*
<<locked>>
88%
37115
61%
**38
90%
[Vihtavuori N565]*
<<locked>>
92%
36260
60%
**12
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40016
66%
**05
100%
Winchester 760
<<locked>>
81%
45295
74%
**62
97%
[Winchester StaBALL HD]*
<<locked>>
81%
24932
41%
**56
94%

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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