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Load data for .375 Swiss P + .375 | 270gr | Woodleigh PP SN

Recommended Powder(s): Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555, Winchester StaBALL HD

.375 Swiss P + .375 | 270gr | Woodleigh PP SN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 270gr | Woodleigh PP SN
Manufacturer SKU:
43A
Bullet Weight:
270gr | 17.5g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.130" | 28.7mm
Caliber:
.375 Swiss P load data
Case Length (l3):
2.750" | 69.8mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.254" | 6.5mm
Shank Seated Depth:
0.254" | 6.5mm
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_B12121_C569
Last updated:
2026-01-21

Load data for 156 loads in caliber .375 Swiss P with .375 | 270gr | Woodleigh PP SN bullet and 78 powders such as Alliant Reloder-26, Ramshot Hunter, ReloadSwiss RS 70, Vihtavuori N555, Winchester StaBALL HD. 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>>
84%
54491
89%
**66
100%
ADI AR 2209
<<locked>>
95%
54346
89%
**54
98%
ADI AR 2213
<<locked>>
97%
51314
84%
**35
96%
[ADI AR 2225]*
<<locked>>
97%
33417
55%
**90
93%
Accurate 2700
<<locked>>
85%
54737
90%
**36
99%
Accurate 3100
<<locked>>
97%
51111
84%
**66
99%
Accurate 4350
<<locked>>
90%
54201
89%
**28
100%
[Accurate MAGPRO]*
<<locked>>
97%
49792
82%
**25
94%
Alliant Reloder- TS 15.5
<<locked>>
84%
54708
90%
**76
100%
Alliant Reloder-16
<<locked>>
91%
54447
89%
**71
100%
Alliant Reloder-17
<<locked>>
87%
54534
90%
**81
100%
Alliant Reloder-19
<<locked>>
96%
54462
89%
**54
98%
Alliant Reloder-22
<<locked>>
97%
50604
83%
**31
98%
Alliant Reloder-23
<<locked>>
97%
48254
79%
**79
100%
Alliant Reloder-25
<<locked>>
97%
41974
69%
**00
99%
Alliant Reloder-26 👍
<<locked>>
97%
54781
90%
**66
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
51285
84%
**53
93%
Bofors RP15
<<locked>>
97%
46369
76%
**59
97%
Bofors RP3
<<locked>>
83%
54462
89%
**82
100%
[Bofors RP30]*
<<locked>>
97%
37985
62%
**08
93%
Bofors RP5
<<locked>>
97%
50604
83%
**31
98%
Bofors RP7
<<locked>>
88%
54476
89%
**72
99%
Hodgdon H380
<<locked>>
83%
54607
90%
**95
100%
Hodgdon H414
<<locked>>
86%
54781
90%
**48
99%
Hodgdon H4350
<<locked>>
93%
54766
90%
**02
99%
Hodgdon H4831
<<locked>>
97%
47529
78%
**10
95%
Hodgdon H4831 SC
<<locked>>
97%
53853
88%
**22
96%
Hodgdon Hybrid 100V
<<locked>>
93%
54810
90%
**02
100%
Hodgdon LVR
<<locked>>
88%
54607
90%
**25
100%
[Hodgdon Retumbo]*
<<locked>>
97%
33417
55%
**90
93%
Hodgdon Superperformance
<<locked>>
88%
54476
89%
**81
99%
Hodgdon VARGET
<<locked>>
85%
54491
89%
**66
100%
Hodgdon TrailBoss
<<locked>>
97%
35172
58%
**22
100%
IMR 4064
<<locked>>
85%
54592
90%
**59
100%
IMR 4166 Enduron
<<locked>>
86%
54679
90%
**56
99%
IMR 4350
<<locked>>
91%
54360
89%
**89
99%
IMR 4451 Enduron
<<locked>>
87%
54723
90%
**79
99%
IMR 4831
<<locked>>
95%
54520
90%
**12
100%
IMR 4955 Enduron
<<locked>>
97%
52997
87%
**72
96%
IMR 7828 SSC
<<locked>>
97%
52707
87%
**74
97%
Lovex S065
<<locked>>
89%
54534
90%
**72
100%
Lovex S070
<<locked>>
90%
54563
90%
**92
99%
Lovex S071
<<locked>>
97%
42656
70%
**12
98%
Norma 204
<<locked>>
91%
54447
89%
**31
98%
Norma MRP
<<locked>>
97%
53548
88%
**17
99%
Norma URP
<<locked>>
90%
54447
89%
**35
100%
Ramshot Grand
<<locked>>
96%
54520
89%
**13
97%
Ramshot Hunter 👍
<<locked>>
91%
54621
90%
**51
100%
Ramshot Magnum
<<locked>>
97%
49168
81%
**95
98%
ReloadSwiss RS 14
<<locked>>
97%
35766
59%
**59
100%
ReloadSwiss RS 50
<<locked>>
83%
54433
89%
**76
99%
ReloadSwiss RS 60
<<locked>>
85%
54578
90%
**77
100%
ReloadSwiss RS 62
<<locked>>
90%
54737
90%
**54
100%
ReloadSwiss RS 70 👍
<<locked>>
91%
54447
89%
**07
100%
ReloadSwiss RS 76
<<locked>>
97%
40364
66%
**07
97%
Rottweil R 903
<<locked>>
85%
54636
90%
**79
100%
Rottweil R 904
<<locked>>
94%
54447
89%
**99
97%
Rottweil R 905
<<locked>>
96%
54737
90%
**54
98%
Rottweil R 907
<<locked>>
88%
54476
89%
**72
99%
SNPE Vectan SP 11
<<locked>>
84%
54462
89%
**12
100%
SNPE Vectan Tubal 5000
<<locked>>
85%
54534
90%
**51
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
54708
90%
**40
99%
Shooters World Long Rifle
<<locked>>
89%
54534
90%
**72
100%
Somchem S355
<<locked>>
85%
54752
90%
**76
100%
Somchem S361
<<locked>>
93%
54302
89%
**72
96%
Somchem S365
<<locked>>
93%
54723
90%
**48
100%
Somchem S385
<<locked>>
96%
54520
89%
**18
99%
Vihtavuori N135
<<locked>>
86%
54534
90%
**84
100%
Vihtavuori N150
<<locked>>
90%
54723
90%
**33
100%
Vihtavuori N160
<<locked>>
88%
54795
90%
**02
100%
Vihtavuori N165
<<locked>>
97%
47181
77%
**90
97%
Vihtavuori N550
<<locked>>
88%
54375
89%
**35
100%
Vihtavuori N555 👍
<<locked>>
97%
53867
88%
**51
100%
Vihtavuori N560
<<locked>>
97%
51024
84%
**58
96%
[Vihtavuori N565]*
<<locked>>
97%
43004
71%
**94
94%
Winchester 6.5 StaBALL
<<locked>>
90%
54694
90%
**72
100%
Winchester 760
<<locked>>
86%
54781
90%
**48
99%
Winchester StaBALL HD 👍
<<locked>>
97%
43033
71%
**28
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
49414
81%
**84
100%
[ADI AR 2209]*
<<locked>>
81%
34229
56%
**48
92%
[ADI AR 2213]*
<<locked>>
86%
35650
59%
**97
90%
[ADI AR 2225]*
<<locked>>
93%
29747
49%
**79
90%
Accurate 2700
<<locked>>
81%
47427
78%
**18
98%
[Accurate 3100]*
<<locked>>
81%
29762
49%
**20
93%
Accurate 4350
<<locked>>
81%
40480
66%
**92
99%
[Accurate MAGPRO]*
<<locked>>
90%
39871
65%
**28
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
49908
82%
**07
100%
Alliant Reloder-16
<<locked>>
81%
39175
64%
**98
99%
Alliant Reloder-17
<<locked>>
81%
44498
73%
**20
100%
[Alliant Reloder-19]*
<<locked>>
81%
34113
56%
**48
92%
[Alliant Reloder-22]*
<<locked>>
82%
31125
51%
**02
90%
Alliant Reloder-23
<<locked>>
81%
28790
47%
**56
97%
[Alliant Reloder-25]*
<<locked>>
81%
25512
42%
**47
90%
Alliant Reloder-26
<<locked>>
81%
30647
50%
**57
95%
[Baschieri & Pellagri 109]*
<<locked>>
92%
44556
73%
**21
90%
[Bofors RP15]*
<<locked>>
84%
31241
51%
**05
90%
Bofors RP3
<<locked>>
81%
50647
83%
**23
100%
[Bofors RP30]*
<<locked>>
93%
33156
54%
**87
90%
[Bofors RP5]*
<<locked>>
82%
31125
51%
**02
90%
Bofors RP7
<<locked>>
81%
44295
73%
**95
97%
Hodgdon H380
<<locked>>
81%
50894
84%
**40
100%
Hodgdon H414
<<locked>>
81%
45948
75%
**00
98%
Hodgdon H4350
<<locked>>
81%
37753
62%
**84
95%
[Hodgdon H4831]*
<<locked>>
88%
36187
59%
**74
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
36129
59%
**67
90%
Hodgdon Hybrid 100V
<<locked>>
81%
36651
60%
**84
99%
Hodgdon LVR
<<locked>>
81%
43178
71%
**31
99%
[Hodgdon Retumbo]*
<<locked>>
93%
29747
49%
**79
90%
Hodgdon Superperformance
<<locked>>
81%
41336
68%
**48
97%
Hodgdon VARGET
<<locked>>
81%
49023
80%
**80
100%
Hodgdon TrailBoss
<<locked>>
88%
31227
51%
**44
100%
IMR 4064
<<locked>>
81%
48515
80%
**61
100%
IMR 4166 Enduron
<<locked>>
81%
47384
78%
**31
98%
IMR 4350
<<locked>>
81%
39566
65%
**20
96%
IMR 4451 Enduron
<<locked>>
81%
45716
75%
**25
98%
IMR 4831
<<locked>>
81%
35027
57%
**57
98%
[IMR 4955 Enduron]*
<<locked>>
84%
35360
58%
**18
90%
[IMR 7828 SSC]*
<<locked>>
85%
35346
58%
**03
90%
Lovex S065
<<locked>>
81%
43134
71%
**75
98%
Lovex S070
<<locked>>
81%
41379
68%
**62
97%
[Lovex S071]*
<<locked>>
81%
25541
42%
**98
91%
[Norma 204]*
<<locked>>
81%
39189
64%
**49
94%
[Norma MRP]*
<<locked>>
81%
30966
51%
**28
92%
Norma URP
<<locked>>
81%
39943
66%
**79
99%
[Ramshot Grand]*
<<locked>>
84%
34925
57%
**07
90%
Ramshot Hunter
<<locked>>
81%
38870
64%
**69
97%
[Ramshot Magnum]*
<<locked>>
84%
30037
49%
**59
90%
ReloadSwiss RS 14
<<locked>>
84%
29878
49%
**40
100%
ReloadSwiss RS 50
<<locked>>
81%
50705
83%
**20
99%
ReloadSwiss RS 60
<<locked>>
81%
47384
78%
**69
100%
ReloadSwiss RS 62
<<locked>>
81%
40103
66%
**95
99%
ReloadSwiss RS 70
<<locked>>
81%
38827
64%
**05
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
30211
50%
**18
90%
Rottweil R 903
<<locked>>
81%
47601
78%
**64
100%
[Rottweil R 904]*
<<locked>>
81%
35505
58%
**34
91%
[Rottweil R 905]*
<<locked>>
81%
33054
54%
**28
92%
Rottweil R 907
<<locked>>
81%
44295
73%
**95
97%
SNPE Vectan SP 11
<<locked>>
81%
48762
80%
**23
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48776
80%
**69
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
42279
69%
**23
97%
Shooters World Long Rifle
<<locked>>
81%
43134
71%
**75
98%
Somchem S355
<<locked>>
81%
47747
78%
**67
100%
[Somchem S361]*
<<locked>>
81%
36216
59%
**25
90%
Somchem S365
<<locked>>
81%
36289
60%
**36
100%
[Somchem S385]*
<<locked>>
81%
33823
56%
**18
93%
Vihtavuori N135
<<locked>>
81%
46499
76%
**72
100%
Vihtavuori N150
<<locked>>
81%
40901
67%
**16
100%
Vihtavuori N160
<<locked>>
81%
43091
71%
**08
99%
[Vihtavuori N165]*
<<locked>>
82%
29080
48%
**90
90%
Vihtavuori N550
<<locked>>
81%
43758
72%
**51
99%
Vihtavuori N555
<<locked>>
81%
31807
52%
**25
97%
[Vihtavuori N560]*
<<locked>>
86%
35853
59%
**33
90%
[Vihtavuori N565]*
<<locked>>
91%
34795
57%
**07
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40538
67%
**43
100%
Winchester 760
<<locked>>
81%
45948
75%
**00
98%
Winchester StaBALL HD
<<locked>>
81%
25353
42%
**20
96%

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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