top of page

Load data for .375 Swiss P + .375 | 250gr | Speer TBBC

Recommended Powder(s): Alliant Reloder-16, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70, Vihtavuori N550

.375 Swiss P + .375 | 250gr | Speer TBBC

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 250gr | Speer TBBC
Manufacturer SKU:
1778
Bullet Weight:
250gr | 16.2g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
1.215" | 30.9mm
Caliber:
.375 Swiss P load data
Case Length (l3):
2.750" | 69.8mm
Cartridge Length (C.O.L.):
3.626" | 92.1mm
Seated Depth:
0.339" | 8.6mm
Shank Seated Depth:
0.339" | 8.6mm
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_B6244_C569
Last updated:
2025-02-02

Load data for 158 loads in caliber .375 Swiss P with .375 | 250gr | Speer TBBC bullet and 79 powders such as Alliant Reloder-16, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70, Vihtavuori N550. 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".

  • No data yet

  • 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.

    .

    Loading_icon.gif

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>>
86%
54244
89%
**58
100%
ADI AR 2209
<<locked>>
97%
53011
87%
**17
97%
[ADI AR 2213]*
<<locked>>
97%
47543
78%
**41
94%
Accurate 2700
<<locked>>
87%
54491
89%
**12
98%
Accurate 3100
<<locked>>
97%
46688
77%
**69
98%
Accurate 4064
<<locked>>
84%
54404
89%
**35
100%
Accurate 4350
<<locked>>
92%
54186
89%
**17
100%
Alliant Reloder- TS 15.5
<<locked>>
86%
54650
90%
**77
100%
Alliant Reloder-15
<<locked>>
84%
54708
90%
**90
100%
Alliant Reloder-16 👍
<<locked>>
94%
54418
89%
**63
100%
Alliant Reloder-17
<<locked>>
89%
54810
90%
**86
100%
Alliant Reloder-19
<<locked>>
97%
52620
86%
**10
97%
Alliant Reloder-22
<<locked>>
97%
46398
76%
**44
96%
Alliant Reloder-23
<<locked>>
97%
43830
72%
**92
100%
Alliant Reloder-25
<<locked>>
97%
38464
63%
**00
97%
Alliant Reloder-26
<<locked>>
97%
49850
82%
**76
100%
Hodgdon CFE223
<<locked>>
84%
54491
89%
**20
100%
Hodgdon H380
<<locked>>
85%
54665
90%
**84
100%
Hodgdon H414
<<locked>>
88%
54360
89%
**36
99%
Hodgdon H4350
<<locked>>
95%
54520
89%
**81
98%
[Hodgdon H4831]*
<<locked>>
97%
44208
73%
**26
92%
[Hodgdon H4831 SC]*
<<locked>>
97%
49850
82%
**35
94%
Hodgdon Hybrid 100V
<<locked>>
95%
54273
89%
**84
100%
Hodgdon LVR
<<locked>>
91%
54781
90%
**23
100%
Hodgdon Superperformance
<<locked>>
91%
54650
90%
**69
98%
Hodgdon VARGET
<<locked>>
86%
54244
89%
**58
100%
Hodgdon TrailBoss
<<locked>>
96%
34606
57%
**65
100%
IMR 4064
<<locked>>
87%
54331
89%
**44
100%
IMR 4166 Enduron
<<locked>>
88%
54621
90%
**38
99%
IMR 4350
<<locked>>
93%
54650
90%
**84
98%
IMR 4451 Enduron
<<locked>>
89%
54230
89%
**58
98%
IMR 4831
<<locked>>
97%
53824
88%
**97
100%
IMR 4895
<<locked>>
83%
54607
90%
**94
100%
[IMR 4955 Enduron]*
<<locked>>
97%
49472
81%
**89
94%
[IMR 7828 SSC]*
<<locked>>
97%
48733
80%
**81
94%
Lovex S062
<<locked>>
85%
54824
90%
**48
100%
Lovex S065
<<locked>>
91%
54723
90%
**64
99%
Lovex S070
<<locked>>
92%
54708
90%
**84
99%
Lovex S071
<<locked>>
97%
39117
64%
**28
96%
Norma 203B
<<locked>>
84%
54636
90%
**84
100%
Norma 204
<<locked>>
93%
54781
90%
**23
97%
Norma MRP
<<locked>>
97%
49023
80%
**23
98%
Norma URP
<<locked>>
93%
54259
89%
**23
100%
Ramshot Big Game
<<locked>>
84%
54621
90%
**04
100%
Ramshot Hunter 👍
<<locked>>
94%
54737
90%
**46
99%
Ramshot Magnum
<<locked>>
97%
45208
74%
**99
96%
ReloadSwiss RS 14
<<locked>>
96%
35186
58%
**08
100%
ReloadSwiss RS 50
<<locked>>
85%
54665
90%
**74
99%
ReloadSwiss RS 52
<<locked>>
84%
54317
89%
**00
100%
ReloadSwiss RS 60
<<locked>>
90%
54491
89%
**95
100%
ReloadSwiss RS 62 👍
<<locked>>
92%
54230
89%
**40
100%
ReloadSwiss RS 70 👍
<<locked>>
93%
54679
90%
**05
100%
[ReloadSwiss RS 76]*
<<locked>>
97%
37304
61%
**80
93%
Rottweil R 902
<<locked>>
83%
54737
90%
**31
100%
Rottweil R 903
<<locked>>
87%
54578
90%
**71
100%
Rottweil R 904
<<locked>>
97%
54549
90%
**90
96%
Rottweil R 905
<<locked>>
97%
51590
85%
**97
97%
Rottweil R 907
<<locked>>
90%
54476
89%
**58
98%
SNPE Vectan SP 11
<<locked>>
87%
54578
90%
**10
100%
SNPE Vectan Tubal 5000
<<locked>>
87%
54447
89%
**43
100%
SNPE Vectan Tubal 7000
<<locked>>
91%
54795
90%
**25
99%
Shooters World Long Rifle
<<locked>>
91%
54723
90%
**64
99%
Shooters World Precision
<<locked>>
85%
54824
90%
**48
100%
Somchem S355
<<locked>>
88%
54795
90%
**74
100%
Somchem S361
<<locked>>
95%
54549
90%
**51
95%
Somchem S365
<<locked>>
96%
54636
90%
**49
100%
Somchem S385
<<locked>>
97%
52214
86%
**71
98%
Vihtavuori N135
<<locked>>
88%
54447
89%
**85
100%
Vihtavuori N140
<<locked>>
83%
54404
89%
**95
100%
Vihtavuori N150
<<locked>>
92%
54244
89%
**25
100%
Vihtavuori N160
<<locked>>
90%
54418
89%
**87
100%
Vihtavuori N165
<<locked>>
97%
43613
72%
**03
95%
Vihtavuori N540
<<locked>>
84%
54636
90%
**25
100%
Vihtavuori N550 👍
<<locked>>
90%
54621
90%
**27
100%
Vihtavuori N555
<<locked>>
97%
49429
81%
**84
100%
[Vihtavuori N560]*
<<locked>>
97%
46963
77%
**64
93%
Winchester 6.5 StaBALL
<<locked>>
92%
54418
89%
**67
100%
Winchester 760
<<locked>>
88%
54360
89%
**36
99%
Winchester StaBALL HD
<<locked>>
97%
37405
61%
**28
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
46499
76%
**26
100%
[ADI AR 2209]*
<<locked>>
83%
34490
57%
**23
90%
[ADI AR 2213]*
<<locked>>
91%
39117
64%
**51
90%
Accurate 2700
<<locked>>
81%
44527
73%
**41
96%
[Accurate 3100]*
<<locked>>
81%
27325
45%
**26
91%
Accurate 4064
<<locked>>
81%
49168
81%
**53
100%
Accurate 4350
<<locked>>
81%
37130
61%
**98
97%
Alliant Reloder- TS 15.5
<<locked>>
81%
46746
77%
**49
100%
Alliant Reloder-15
<<locked>>
81%
50140
82%
**12
100%
Alliant Reloder-16
<<locked>>
81%
36289
60%
**05
97%
Alliant Reloder-17
<<locked>>
81%
41031
67%
**40
100%
[Alliant Reloder-19]*
<<locked>>
83%
33634
55%
**10
90%
[Alliant Reloder-22]*
<<locked>>
87%
33518
55%
**43
90%
Alliant Reloder-23
<<locked>>
81%
26760
44%
**59
95%
[Alliant Reloder-25]*
<<locked>>
86%
27876
46%
**85
90%
[Alliant Reloder-26]*
<<locked>>
81%
28369
47%
**51
92%
Hodgdon CFE223
<<locked>>
81%
49139
81%
**35
100%
Hodgdon H380
<<locked>>
81%
47442
78%
**66
99%
Hodgdon H414
<<locked>>
81%
42569
70%
**17
96%
[Hodgdon H4350]*
<<locked>>
81%
35375
58%
**97
93%
[Hodgdon H4831]*
<<locked>>
93%
39378
65%
**21
90%
[Hodgdon H4831 SC]*
<<locked>>
90%
39378
65%
**21
90%
Hodgdon Hybrid 100V
<<locked>>
81%
33924
56%
**07
98%
Hodgdon LVR
<<locked>>
81%
40001
66%
**57
97%
[Hodgdon Superperformance]*
<<locked>>
81%
38276
63%
**48
94%
Hodgdon VARGET
<<locked>>
81%
46137
76%
**20
99%
Hodgdon TrailBoss
<<locked>>
83%
28674
47%
**44
100%
IMR 4064
<<locked>>
81%
45658
75%
**00
100%
IMR 4166 Enduron
<<locked>>
81%
44730
73%
**61
97%
[IMR 4350]*
<<locked>>
81%
37246
61%
**46
94%
IMR 4451 Enduron
<<locked>>
81%
42902
70%
**48
96%
IMR 4831
<<locked>>
81%
32387
53%
**74
96%
IMR 4895
<<locked>>
81%
51358
84%
**48
100%
[IMR 4955 Enduron]*
<<locked>>
88%
38406
63%
**62
90%
[IMR 7828 SSC]*
<<locked>>
90%
38522
63%
**51
90%
Lovex S062
<<locked>>
81%
48979
80%
**53
100%
Lovex S065
<<locked>>
81%
40451
66%
**05
97%
Lovex S070
<<locked>>
81%
38711
64%
**85
95%
[Lovex S071]*
<<locked>>
85%
26861
44%
**13
90%
Norma 203B
<<locked>>
81%
49356
81%
**05
100%
[Norma 204]*
<<locked>>
81%
36579
60%
**62
91%
[Norma MRP]*
<<locked>>
83%
30618
50%
**87
90%
Norma URP
<<locked>>
81%
36999
61%
**98
97%
Ramshot Big Game
<<locked>>
81%
49617
81%
**25
100%
Ramshot Hunter
<<locked>>
81%
35882
59%
**79
95%
[Ramshot Magnum]*
<<locked>>
88%
33170
54%
**16
90%
ReloadSwiss RS 14
<<locked>>
81%
28123
46%
**57
100%
ReloadSwiss RS 50
<<locked>>
81%
47819
79%
**49
98%
ReloadSwiss RS 52
<<locked>>
81%
49037
80%
**15
100%
ReloadSwiss RS 60
<<locked>>
81%
39856
65%
**30
100%
ReloadSwiss RS 62
<<locked>>
81%
36985
61%
**21
97%
ReloadSwiss RS 70
<<locked>>
81%
36143
59%
**25
96%
[ReloadSwiss RS 76]*
<<locked>>
93%
32938
54%
**59
90%
Rottweil R 902
<<locked>>
81%
50995
84%
**72
100%
Rottweil R 903
<<locked>>
81%
44396
73%
**00
100%
[Rottweil R 904]*
<<locked>>
84%
36535
60%
**33
90%
[Rottweil R 905]*
<<locked>>
83%
32866
54%
**90
90%
Rottweil R 907
<<locked>>
81%
41742
69%
**25
95%
SNPE Vectan SP 11
<<locked>>
81%
45440
75%
**53
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45876
75%
**18
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39581
65%
**43
95%
Shooters World Long Rifle
<<locked>>
81%
40451
66%
**05
97%
Shooters World Precision
<<locked>>
81%
48979
80%
**53
100%
Somchem S355
<<locked>>
81%
44686
73%
**97
100%
[Somchem S361]*
<<locked>>
86%
39276
64%
**62
90%
Somchem S365
<<locked>>
81%
33547
55%
**52
99%
[Somchem S385]*
<<locked>>
81%
31183
51%
**21
90%
Vihtavuori N135
<<locked>>
81%
43569
72%
**15
100%
Vihtavuori N140
<<locked>>
81%
50517
83%
**36
100%
Vihtavuori N150
<<locked>>
81%
38334
63%
**49
100%
Vihtavuori N160
<<locked>>
81%
40147
66%
**28
98%
[Vihtavuori N165]*
<<locked>>
87%
31705
52%
**28
90%
Vihtavuori N540
<<locked>>
81%
50256
82%
**59
100%
Vihtavuori N550
<<locked>>
81%
40756
67%
**74
98%
Vihtavuori N555
<<locked>>
81%
29080
48%
**31
95%
[Vihtavuori N560]*
<<locked>>
92%
39610
65%
**97
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37811
62%
**69
99%
Winchester 760
<<locked>>
81%
42569
70%
**17
96%
[Winchester StaBALL HD]*
<<locked>>
81%
23569
39%
**97
91%

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

bottom of page