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Load data for .375 Swiss P + .375 | 300gr | Speer AGS TBSS

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

.375 Swiss P + .375 | 300gr | Speer AGS TBSS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 300gr | Speer AGS TBSS
Manufacturer SKU:
1781
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.200" | 30.5mm
Caliber:
.375 Swiss P load data
Case Length (l3):
2.750" | 69.8mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.324" | 8.2mm
Shank Seated Depth:
0.324" | 8.2mm
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_B6248_C569
Last updated:
2025-02-02

Load data for 134 loads in caliber .375 Swiss P with .375 | 300gr | Speer AGS TBSS 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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  • 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>>
93%
54520
89%
**23
99%
ADI AR 2213
<<locked>>
96%
54244
89%
**49
98%
ADI AR 2217
<<locked>>
97%
40741
67%
**00
95%
ADI AR 2225
<<locked>>
97%
36260
60%
**61
97%
Accurate 2700
<<locked>>
83%
54462
89%
**98
99%
Accurate 3100
<<locked>>
96%
54621
90%
**74
100%
Accurate 4350
<<locked>>
87%
54650
90%
**90
100%
Accurate MAGPRO
<<locked>>
97%
54317
89%
**76
97%
Alliant Reloder-16
<<locked>>
89%
54665
90%
**26
100%
Alliant Reloder-17
<<locked>>
84%
54766
90%
**30
100%
Alliant Reloder-19 👍
<<locked>>
93%
54433
89%
**17
99%
Alliant Reloder-22
<<locked>>
96%
54346
89%
**59
99%
Alliant Reloder-23
<<locked>>
97%
52866
87%
**00
100%
Alliant Reloder-25
<<locked>>
97%
45788
75%
**44
100%
Alliant Reloder-26 👍
<<locked>>
94%
54404
89%
**05
100%
Hodgdon H1000
<<locked>>
97%
40741
67%
**00
95%
Hodgdon H414
<<locked>>
84%
54418
89%
**07
100%
Hodgdon H4350
<<locked>>
90%
54462
89%
**61
99%
Hodgdon H4831
<<locked>>
97%
51401
84%
**51
97%
Hodgdon H4831 SC
<<locked>>
95%
54418
89%
**97
97%
Hodgdon Hybrid 100V
<<locked>>
91%
54418
89%
**48
100%
Hodgdon LVR
<<locked>>
86%
54694
90%
**90
100%
Hodgdon Retumbo
<<locked>>
97%
36260
60%
**61
97%
Hodgdon Superperformance
<<locked>>
86%
54447
89%
**43
100%
IMR 4166 Enduron
<<locked>>
84%
54578
90%
**18
100%
IMR 4350
<<locked>>
89%
54433
89%
**61
100%
IMR 4451 Enduron
<<locked>>
85%
54665
90%
**48
100%
IMR 4831
<<locked>>
92%
54549
90%
**71
100%
IMR 4955 Enduron
<<locked>>
96%
54708
90%
**67
98%
IMR 7828 SSC
<<locked>>
95%
54317
89%
**69
98%
Lovex S065
<<locked>>
86%
54505
89%
**31
100%
Lovex S070
<<locked>>
88%
54781
90%
**57
100%
Lovex S071
<<locked>>
97%
46673
77%
**59
99%
Norma 204
<<locked>>
88%
54708
90%
**03
99%
[Norma 217]*
<<locked>>
97%
32256
53%
**85
94%
Norma MRP 👍
<<locked>>
95%
54621
90%
**92
100%
Norma URP
<<locked>>
88%
54404
89%
**84
100%
Ramshot Hunter
<<locked>>
89%
54549
90%
**17
100%
Ramshot Magnum
<<locked>>
97%
53882
88%
**43
99%
ReloadSwiss RS 14
<<locked>>
96%
35955
59%
**63
100%
ReloadSwiss RS 60
<<locked>>
85%
54679
90%
**56
100%
ReloadSwiss RS 62
<<locked>>
87%
54534
90%
**10
100%
ReloadSwiss RS 70
<<locked>>
88%
54607
90%
**62
100%
ReloadSwiss RS 76
<<locked>>
97%
44193
73%
**71
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
39682
65%
**49
93%
Rottweil R 903
<<locked>>
83%
54766
90%
**35
100%
Rottweil R 904
<<locked>>
92%
54636
90%
**77
98%
Rottweil R 905 👍
<<locked>>
94%
54404
89%
**13
99%
Rottweil R 907
<<locked>>
85%
54360
89%
**41
99%
SNPE Vectan Tubal 7000
<<locked>>
87%
54288
89%
**95
100%
Shooters World Long Rifle
<<locked>>
86%
54505
89%
**31
100%
Somchem S355
<<locked>>
83%
54679
90%
**25
100%
Somchem S361
<<locked>>
91%
54288
89%
**38
97%
Somchem S365
<<locked>>
90%
54723
90%
**94
100%
Somchem S385
<<locked>>
93%
54578
90%
**87
100%
Vihtavuori N135
<<locked>>
84%
54549
90%
**36
100%
Vihtavuori N150
<<locked>>
88%
54621
90%
**92
100%
Vihtavuori N160
<<locked>>
86%
54302
89%
**48
100%
Vihtavuori N165
<<locked>>
97%
51271
84%
**25
99%
Vihtavuori N550
<<locked>>
85%
54665
90%
**94
100%
Vihtavuori N555
<<locked>>
95%
54607
90%
**20
100%
Vihtavuori N560
<<locked>>
96%
54404
89%
**76
98%
Vihtavuori N565
<<locked>>
97%
47543
78%
**51
97%
[Vihtavuori N568]*
<<locked>>
97%
41118
68%
**72
93%
Winchester 6.5 StaBALL
<<locked>>
87%
54723
90%
**31
100%
Winchester 760
<<locked>>
84%
54418
89%
**07
100%
Winchester StaBALL HD
<<locked>>
97%
48820
80%
**69
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
37014
61%
**92
95%
[ADI AR 2213]*
<<locked>>
81%
32996
54%
**16
91%
[ADI AR 2217]*
<<locked>>
89%
32300
53%
**93
90%
[ADI AR 2225]*
<<locked>>
87%
27079
44%
**95
90%
Accurate 2700
<<locked>>
81%
50720
83%
**43
99%
Accurate 3100
<<locked>>
81%
32822
54%
**80
96%
Accurate 4350
<<locked>>
81%
44034
72%
**16
100%
[Accurate MAGPRO]*
<<locked>>
85%
35853
59%
**21
90%
Alliant Reloder-16
<<locked>>
81%
42206
69%
**23
100%
Alliant Reloder-17
<<locked>>
81%
48747
80%
**44
100%
Alliant Reloder-19
<<locked>>
81%
36840
60%
**92
95%
[Alliant Reloder-22]*
<<locked>>
81%
32692
54%
**33
93%
Alliant Reloder-23
<<locked>>
81%
31517
52%
**10
99%
[Alliant Reloder-25]*
<<locked>>
81%
27557
45%
**11
94%
Alliant Reloder-26
<<locked>>
81%
33939
56%
**31
98%
[Hodgdon H1000]*
<<locked>>
89%
32300
53%
**93
90%
Hodgdon H414
<<locked>>
81%
49647
81%
**31
99%
Hodgdon H4350
<<locked>>
81%
40741
67%
**25
97%
[Hodgdon H4831]*
<<locked>>
82%
32648
54%
**70
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
34563
57%
**20
91%
Hodgdon Hybrid 100V
<<locked>>
81%
40016
66%
**21
100%
Hodgdon LVR
<<locked>>
81%
46557
76%
**62
100%
[Hodgdon Retumbo]*
<<locked>>
87%
27079
44%
**95
90%
Hodgdon Superperformance
<<locked>>
81%
44918
74%
**82
98%
IMR 4166 Enduron
<<locked>>
81%
50372
83%
**56
99%
IMR 4350
<<locked>>
81%
42844
70%
**61
98%
IMR 4451 Enduron
<<locked>>
81%
48631
80%
**49
99%
IMR 4831
<<locked>>
81%
38145
63%
**92
99%
[IMR 4955 Enduron]*
<<locked>>
81%
35230
58%
**00
92%
[IMR 7828 SSC]*
<<locked>>
81%
33591
55%
**49
91%
Lovex S065
<<locked>>
81%
46267
76%
**03
100%
Lovex S070
<<locked>>
81%
44570
73%
**97
99%
[Lovex S071]*
<<locked>>
81%
28340
47%
**72
94%
Norma 204
<<locked>>
81%
42540
70%
**93
96%
[Norma 217]*
<<locked>>
91%
27006
44%
**28
90%
Norma MRP
<<locked>>
81%
33953
56%
**92
95%
Norma URP
<<locked>>
81%
43352
71%
**07
100%
Ramshot Hunter
<<locked>>
81%
42061
69%
**07
99%
[Ramshot Magnum]*
<<locked>>
81%
30153
49%
**64
92%
ReloadSwiss RS 14
<<locked>>
94%
34722
57%
**44
100%
ReloadSwiss RS 60
<<locked>>
81%
46833
77%
**31
100%
ReloadSwiss RS 62
<<locked>>
81%
43961
72%
**43
100%
ReloadSwiss RS 70
<<locked>>
81%
42235
69%
**56
100%
[ReloadSwiss RS 76]*
<<locked>>
83%
27296
45%
**21
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
34679
57%
**31
90%
Rottweil R 903
<<locked>>
81%
51387
84%
**82
100%
[Rottweil R 904]*
<<locked>>
81%
38464
63%
**79
94%
Rottweil R 905
<<locked>>
81%
36100
59%
**79
95%
Rottweil R 907
<<locked>>
81%
47558
78%
**26
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
45281
74%
**51
99%
Shooters World Long Rifle
<<locked>>
81%
46267
76%
**03
100%
Somchem S355
<<locked>>
81%
51242
84%
**82
100%
[Somchem S361]*
<<locked>>
81%
39030
64%
**75
93%
Somchem S365
<<locked>>
81%
40190
66%
**74
100%
Somchem S385
<<locked>>
81%
36738
60%
**65
96%
Vihtavuori N135
<<locked>>
81%
50024
82%
**80
100%
Vihtavuori N150
<<locked>>
81%
44135
72%
**34
100%
Vihtavuori N160
<<locked>>
81%
46746
77%
**33
100%
[Vihtavuori N165]*
<<locked>>
81%
30850
51%
**24
93%
Vihtavuori N550
<<locked>>
81%
47355
78%
**79
100%
Vihtavuori N555
<<locked>>
81%
35157
58%
**82
99%
[Vihtavuori N560]*
<<locked>>
81%
32808
54%
**46
90%
[Vihtavuori N565]*
<<locked>>
85%
31343
51%
**03
90%
[Vihtavuori N568]*
<<locked>>
93%
35766
59%
**44
90%
Winchester 6.5 StaBALL
<<locked>>
81%
43801
72%
**74
100%
Winchester 760
<<locked>>
81%
49647
81%
**31
99%
Winchester StaBALL HD
<<locked>>
81%
26020
43%
**13
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.

<<locked>>... you need to buy an access license to unlock the data

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