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Load data for .375 Swiss P + .375 | 300gr | Hornady InterLock RN

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905

.375 Swiss P + .375 | 300gr | Hornady InterLock RN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 300gr | Hornady InterLock RN
Manufacturer SKU:
3720
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.184" | 30.1mm
Caliber:
.375 Swiss P load data
Case Length (l3):
2.750" | 69.8mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.308" | 7.8mm
Shank Seated Depth:
0.308" | 7.8mm
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_B2813_C569
Last updated:
2025-02-02

Load data for 134 loads in caliber .375 Swiss P with .375 | 300gr | Hornady InterLock RN bullet and 67 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905. 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 2209 👍
<<locked>>
93%
54694
90%
**26
99%
ADI AR 2213
<<locked>>
96%
54505
89%
**62
98%
ADI AR 2217
<<locked>>
97%
40698
67%
**00
95%
ADI AR 2225
<<locked>>
97%
36085
59%
**54
96%
Accurate 2700
<<locked>>
84%
54752
90%
**08
99%
Accurate 3100
<<locked>>
96%
54607
90%
**80
100%
Accurate 4350
<<locked>>
88%
54621
90%
**90
100%
Accurate MAGPRO
<<locked>>
97%
54447
89%
**79
97%
Alliant Reloder-16
<<locked>>
89%
54708
90%
**33
100%
Alliant Reloder-17
<<locked>>
84%
54418
89%
**23
100%
Alliant Reloder-19 👍
<<locked>>
93%
54592
90%
**20
99%
Alliant Reloder-22
<<locked>>
97%
54491
89%
**62
99%
Alliant Reloder-23
<<locked>>
97%
52431
86%
**03
100%
Alliant Reloder-25
<<locked>>
97%
45382
74%
**48
100%
Alliant Reloder-26 👍
<<locked>>
94%
54621
90%
**08
100%
Hodgdon H1000
<<locked>>
97%
40698
67%
**00
95%
Hodgdon H414
<<locked>>
84%
54418
89%
**10
100%
Hodgdon H4350
<<locked>>
91%
54636
90%
**64
99%
Hodgdon H4831
<<locked>>
97%
51401
84%
**51
97%
Hodgdon H4831 SC
<<locked>>
95%
54389
89%
**07
98%
Hodgdon Hybrid 100V
<<locked>>
91%
54650
90%
**51
100%
Hodgdon LVR
<<locked>>
86%
54795
90%
**94
100%
Hodgdon Retumbo
<<locked>>
97%
36085
59%
**54
96%
Hodgdon Superperformance
<<locked>>
86%
54433
89%
**43
100%
IMR 4166 Enduron
<<locked>>
84%
54317
89%
**15
100%
IMR 4350
<<locked>>
89%
54766
90%
**64
100%
IMR 4451 Enduron
<<locked>>
85%
54708
90%
**44
100%
IMR 4831
<<locked>>
93%
54766
90%
**74
100%
IMR 4955 Enduron
<<locked>>
95%
54447
89%
**71
98%
IMR 7828 SSC
<<locked>>
95%
54215
89%
**69
98%
Lovex S065
<<locked>>
87%
54621
90%
**35
100%
Lovex S070
<<locked>>
88%
54433
89%
**64
100%
Lovex S071
<<locked>>
97%
46253
76%
**49
99%
Norma 204
<<locked>>
89%
54534
90%
**03
99%
[Norma 217]*
<<locked>>
97%
31923
52%
**82
94%
Norma MRP 👍
<<locked>>
95%
54534
90%
**95
100%
Norma URP
<<locked>>
88%
54520
89%
**94
100%
Ramshot Hunter
<<locked>>
89%
54781
90%
**13
100%
Ramshot Magnum
<<locked>>
97%
53447
88%
**33
99%
ReloadSwiss RS 14
<<locked>>
97%
36114
59%
**70
100%
ReloadSwiss RS 60
<<locked>>
85%
54476
89%
**53
100%
ReloadSwiss RS 62
<<locked>>
88%
54578
90%
**10
100%
ReloadSwiss RS 70
<<locked>>
89%
54621
90%
**62
100%
ReloadSwiss RS 76
<<locked>>
97%
44005
72%
**77
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
39566
65%
**52
93%
Rottweil R 903
<<locked>>
83%
54447
89%
**35
100%
Rottweil R 904
<<locked>>
92%
54810
90%
**80
98%
Rottweil R 905 👍
<<locked>>
94%
54592
90%
**23
99%
Rottweil R 907
<<locked>>
86%
54476
89%
**44
99%
SNPE Vectan Tubal 7000
<<locked>>
87%
54636
90%
**02
100%
Shooters World Long Rifle
<<locked>>
87%
54621
90%
**35
100%
Somchem S355
<<locked>>
83%
54708
90%
**35
100%
Somchem S361
<<locked>>
92%
54795
90%
**51
97%
Somchem S365
<<locked>>
91%
54795
90%
**03
100%
Somchem S385
<<locked>>
93%
54723
90%
**90
100%
Vihtavuori N135
<<locked>>
84%
54650
90%
**39
100%
Vihtavuori N150
<<locked>>
88%
54752
90%
**95
100%
Vihtavuori N160
<<locked>>
86%
54549
90%
**54
100%
Vihtavuori N165
<<locked>>
97%
51401
84%
**35
99%
Vihtavuori N550
<<locked>>
86%
54534
90%
**87
100%
Vihtavuori N555
<<locked>>
95%
54621
90%
**20
100%
Vihtavuori N560
<<locked>>
97%
54737
90%
**85
98%
Vihtavuori N565
<<locked>>
97%
47036
77%
**44
96%
[Vihtavuori N568]*
<<locked>>
97%
41031
67%
**66
93%
Winchester 6.5 StaBALL
<<locked>>
88%
54723
90%
**38
100%
Winchester 760
<<locked>>
84%
54418
89%
**10
100%
Winchester StaBALL HD
<<locked>>
97%
48341
79%
**66
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
36796
60%
**98
95%
[ADI AR 2213]*
<<locked>>
81%
32692
54%
**16
91%
[ADI AR 2217]*
<<locked>>
90%
32227
53%
**93
90%
[ADI AR 2225]*
<<locked>>
88%
26919
44%
**88
90%
Accurate 2700
<<locked>>
81%
50604
83%
**39
99%
Accurate 3100
<<locked>>
81%
32372
53%
**77
96%
Accurate 4350
<<locked>>
81%
43758
72%
**20
100%
[Accurate MAGPRO]*
<<locked>>
85%
35607
58%
**18
90%
Alliant Reloder-16
<<locked>>
81%
42192
69%
**30
100%
Alliant Reloder-17
<<locked>>
81%
48327
79%
**38
100%
Alliant Reloder-19
<<locked>>
81%
36622
60%
**88
95%
[Alliant Reloder-22]*
<<locked>>
81%
32372
53%
**26
93%
Alliant Reloder-23
<<locked>>
81%
31125
51%
**06
99%
[Alliant Reloder-25]*
<<locked>>
81%
27195
45%
**08
94%
Alliant Reloder-26
<<locked>>
81%
33736
55%
**31
98%
[Hodgdon H1000]*
<<locked>>
90%
32227
53%
**93
90%
Hodgdon H414
<<locked>>
81%
49545
81%
**38
99%
Hodgdon H4350
<<locked>>
81%
40422
66%
**21
97%
[Hodgdon H4831]*
<<locked>>
83%
32663
54%
**80
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
34243
56%
**13
91%
Hodgdon Hybrid 100V
<<locked>>
81%
39697
65%
**18
100%
Hodgdon LVR
<<locked>>
81%
46311
76%
**62
100%
[Hodgdon Retumbo]*
<<locked>>
88%
26919
44%
**88
90%
Hodgdon Superperformance
<<locked>>
81%
44570
73%
**85
98%
IMR 4166 Enduron
<<locked>>
81%
50140
82%
**52
99%
IMR 4350
<<locked>>
81%
42380
70%
**54
98%
IMR 4451 Enduron
<<locked>>
81%
48588
80%
**49
99%
IMR 4831
<<locked>>
81%
37840
62%
**95
99%
[IMR 4955 Enduron]*
<<locked>>
81%
34838
57%
**93
92%
[IMR 7828 SSC]*
<<locked>>
81%
33417
55%
**49
91%
Lovex S065
<<locked>>
81%
46021
76%
**03
100%
Lovex S070
<<locked>>
81%
44193
73%
**90
99%
[Lovex S071]*
<<locked>>
81%
27978
46%
**62
94%
Norma 204
<<locked>>
81%
42337
69%
**97
96%
[Norma 217]*
<<locked>>
92%
27311
45%
**44
90%
Norma MRP
<<locked>>
81%
33779
55%
**92
95%
Norma URP
<<locked>>
81%
43120
71%
**10
100%
Ramshot Hunter
<<locked>>
81%
41872
69%
**00
99%
[Ramshot Magnum]*
<<locked>>
81%
29675
49%
**57
92%
ReloadSwiss RS 14
<<locked>>
94%
34853
57%
**47
100%
ReloadSwiss RS 60
<<locked>>
81%
46557
76%
**28
100%
ReloadSwiss RS 62
<<locked>>
81%
43540
71%
**33
100%
ReloadSwiss RS 70
<<locked>>
81%
41959
69%
**49
100%
[ReloadSwiss RS 76]*
<<locked>>
83%
27137
45%
**28
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
34606
57%
**38
90%
Rottweil R 903
<<locked>>
81%
51097
84%
**82
100%
[Rottweil R 904]*
<<locked>>
81%
38029
62%
**79
94%
Rottweil R 905
<<locked>>
81%
35781
59%
**72
95%
Rottweil R 907
<<locked>>
81%
47065
77%
**23
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
45020
74%
**57
99%
Shooters World Long Rifle
<<locked>>
81%
46021
76%
**03
100%
Somchem S355
<<locked>>
81%
50981
84%
**79
100%
[Somchem S361]*
<<locked>>
81%
38754
64%
**69
93%
Somchem S365
<<locked>>
81%
39711
65%
**64
100%
Somchem S385
<<locked>>
81%
36390
60%
**59
96%
Vihtavuori N135
<<locked>>
81%
49690
82%
**77
100%
Vihtavuori N150
<<locked>>
81%
43685
72%
**31
100%
Vihtavuori N160
<<locked>>
81%
46470
76%
**30
100%
[Vihtavuori N165]*
<<locked>>
81%
30560
50%
**18
93%
Vihtavuori N550
<<locked>>
81%
47152
77%
**79
100%
Vihtavuori N555
<<locked>>
81%
34838
57%
**75
99%
[Vihtavuori N560]*
<<locked>>
81%
32648
54%
**39
90%
[Vihtavuori N565]*
<<locked>>
85%
31488
52%
**16
90%
[Vihtavuori N568]*
<<locked>>
93%
35853
59%
**48
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43511
71%
**67
100%
Winchester 760
<<locked>>
81%
49545
81%
**38
99%
Winchester StaBALL HD
<<locked>>
81%
25802
42%
**06
99%

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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