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Load data for .375 Ruger + .375 | 250gr | Speer TBBC

Recommended Powder(s):

.375 Ruger + .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:
<<locked>>
Caliber:
.375 Ruger load data
Case Length (l3):
2.572" | 65.3mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
99.0 Grains of Water | 6.43 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
62076 psi | 4280 bar
LID:
LID_B6244_C561
Last updated:
2026-05-07

Load data for 204 loads in caliber .375 Ruger with .375 | 250gr | Speer TBBC bullet and 102 powder(s). 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.

    .

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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 2206H
<<locked>>
90%
55811
90%
**97
100%
ADI AR 2208
<<locked>>
95%
55347
89%
**74
99%
ADI Benchmark 8208
<<locked>>
88%
55651
90%
**64
100%
Accurate 2015
<<locked>>
86%
55361
89%
**89
100%
Accurate 2200
<<locked>>
88%
55245
89%
**54
99%
Accurate 2230
<<locked>>
84%
55434
89%
**44
100%
Accurate 2460
<<locked>>
84%
55332
89%
**44
100%
Accurate 2495
<<locked>>
89%
55767
90%
**61
100%
Accurate 2520
<<locked>>
88%
55811
90%
**84
100%
Accurate 2700
<<locked>>
96%
55477
89%
**08
96%
Accurate 4064
<<locked>>
95%
55608
90%
**77
100%
Accurate 4350
<<locked>>
97%
44454
72%
**89
98%
Alliant AR-Comp
<<locked>>
88%
55825
90%
**41
100%
Alliant Power Pro 2000-MR 👍
<<locked>>
92%
55535
89%
**02
100%
Alliant Reloder- TS 15.5
<<locked>>
96%
55753
90%
**07
100%
Alliant Reloder-10x
<<locked>>
84%
55782
90%
**05
100%
Alliant Reloder-15
<<locked>>
93%
55608
90%
**13
100%
Alliant Reloder-16
<<locked>>
97%
44295
71%
**92
98%
Alliant Reloder-17
<<locked>>
97%
51111
82%
**33
100%
Alliant Reloder-23
<<locked>>
97%
31415
51%
**36
95%
[Alliant Reloder-26]*
<<locked>>
97%
34156
55%
**41
93%
Baschieri & Pellagri 107
<<locked>>
90%
55724
90%
**07
99%
Bofors RP3
<<locked>>
95%
55550
89%
**10
100%
Bofors RP7
<<locked>>
97%
52054
84%
**08
95%
Hodgdon BL-C2
<<locked>>
88%
55753
90%
**13
100%
Hodgdon Benchmark
<<locked>>
87%
55347
89%
**18
100%
Hodgdon CFE223
<<locked>>
86%
55172
89%
**59
100%
Hodgdon H322
<<locked>>
86%
55332
89%
**54
100%
Hodgdon H380
<<locked>>
94%
55608
90%
**00
99%
Hodgdon H414
<<locked>>
97%
52866
85%
**07
97%
[Hodgdon H4350]*
<<locked>>
97%
47587
77%
**75
94%
Hodgdon H4895
<<locked>>
90%
55680
90%
**00
100%
Hodgdon Hybrid 100V
<<locked>>
97%
41031
66%
**97
98%
Hodgdon LVR
<<locked>>
97%
48834
79%
**38
98%
Hodgdon Superperformance
<<locked>>
97%
48675
78%
**48
95%
Hodgdon VARGET
<<locked>>
94%
55796
90%
**87
100%
Hodgdon LEVERevolution 👍
<<locked>>
94%
55332
89%
**33
100%
Hodgdon TrailBoss
<<locked>>
96%
33257
54%
**94
100%
IMR 3031
<<locked>>
93%
55259
89%
**87
100%
IMR 4064
<<locked>>
96%
55825
90%
**71
100%
IMR 4166 Enduron
<<locked>>
96%
55651
90%
**38
97%
IMR 4198
<<locked>>
84%
55825
90%
**66
100%
[IMR 4350]*
<<locked>>
97%
45919
74%
**36
94%
IMR 4451 Enduron
<<locked>>
97%
54070
87%
**44
96%
IMR 4831
<<locked>>
97%
38116
61%
**48
96%
IMR 4895
<<locked>>
92%
55593
90%
**26
100%
IMR 8208 XBR
<<locked>>
88%
55651
90%
**64
100%
Lovex D073.5
<<locked>>
84%
55666
90%
**44
100%
Lovex D073.6
<<locked>>
90%
55666
90%
**77
100%
Lovex S060
<<locked>>
90%
55695
90%
**28
100%
Lovex S062
<<locked>>
94%
55738
90%
**74
100%
Lovex S065
<<locked>>
97%
49385
80%
**79
97%
Lovex S070
<<locked>>
97%
47007
76%
**62
95%
Norma 201
<<locked>>
91%
55550
89%
**61
100%
Norma 202
<<locked>>
90%
55143
89%
**54
100%
Norma 203B
<<locked>>
94%
55579
90%
**13
100%
[Norma 204]*
<<locked>>
97%
46064
74%
**62
92%
Norma URP
<<locked>>
97%
44353
71%
**82
97%
Ramshot Big Game
<<locked>>
93%
55506
89%
**23
100%
Ramshot Hunter
<<locked>>
97%
44324
71%
**79
95%
Ramshot TAC
<<locked>>
88%
55288
89%
**64
98%
Ramshot Wild Boar
<<locked>>
88%
55347
89%
**97
100%
Ramshot X-Terminator
<<locked>>
86%
55825
90%
**51
100%
ReloadSwiss RS 14
<<locked>>
96%
33591
54%
**34
100%
ReloadSwiss RS 40
<<locked>>
84%
55463
89%
**54
100%
ReloadSwiss RS 50
<<locked>>
94%
55564
90%
**71
97%
ReloadSwiss RS 52 👍
<<locked>>
91%
55709
90%
**76
100%
ReloadSwiss RS 60 👍
<<locked>>
97%
54462
88%
**95
100%
ReloadSwiss RS 62
<<locked>>
97%
44527
72%
**02
97%
ReloadSwiss RS 70
<<locked>>
97%
45513
73%
**28
97%
Rottweil R 901
<<locked>>
88%
55405
89%
**31
100%
Rottweil R 902
<<locked>>
92%
55419
89%
**51
100%
Rottweil R 903
<<locked>>
97%
53853
87%
**77
100%
Rottweil R 907
<<locked>>
97%
52054
84%
**08
95%
SNPE Vectan SP 11 👍
<<locked>>
97%
55709
90%
**40
100%
SNPE Vectan SP 7
<<locked>>
89%
55579
90%
**71
99%
SNPE Vectan SP 9
<<locked>>
91%
55651
90%
**87
100%
SNPE Vectan Tubal 3000
<<locked>>
89%
55376
89%
**82
100%
SNPE Vectan Tubal 5000
<<locked>>
96%
55796
90%
**85
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
49705
80%
**36
96%
Shooters World Long Rifle
<<locked>>
97%
49385
80%
**79
97%
Shooters World Match Rifle
<<locked>>
90%
55666
90%
**77
100%
Shooters World Precision
<<locked>>
94%
55738
90%
**74
100%
Somchem S321
<<locked>>
86%
55695
90%
**80
100%
Somchem S335
<<locked>>
90%
55259
89%
**85
100%
Somchem S341
<<locked>>
89%
55651
90%
**74
100%
Somchem S355
<<locked>>
97%
54578
88%
**80
100%
Somchem S365
<<locked>>
97%
39813
64%
**36
99%
Vihtavuori N130
<<locked>>
86%
55550
89%
**59
100%
Vihtavuori N133
<<locked>>
89%
55477
89%
**69
100%
Vihtavuori N135
<<locked>>
94%
55332
89%
**28
100%
Vihtavuori N140
<<locked>>
92%
55724
90%
**35
100%
Vihtavuori N150
<<locked>>
97%
52562
85%
**15
100%
Vihtavuori N160
<<locked>>
97%
46775
75%
**85
98%
Vihtavuori N530
<<locked>>
88%
55419
89%
**51
100%
Vihtavuori N540
<<locked>>
93%
55143
89%
**44
100%
Vihtavuori N550
<<locked>>
97%
46050
74%
**89
97%
Vihtavuori N555
<<locked>>
97%
33083
53%
**05
95%
Winchester 6.5 StaBALL
<<locked>>
97%
47601
77%
**62
99%
Winchester 748
<<locked>>
86%
55071
89%
**00
100%
Winchester 760
<<locked>>
97%
52866
85%
**07
97%
Winchester StaBALL Match
<<locked>>
84%
55767
90%
**97
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
<<locked>>
81%
41858
67%
**77
98%
ADI AR 2208
<<locked>>
81%
35708
58%
**36
95%
ADI Benchmark 8208
<<locked>>
81%
44106
71%
**87
99%
Accurate 2015
<<locked>>
81%
47543
77%
**87
100%
Accurate 2200
<<locked>>
81%
44193
71%
**77
97%
Accurate 2230
<<locked>>
81%
50053
81%
**66
100%
Accurate 2460
<<locked>>
81%
50169
81%
**75
100%
Accurate 2495
<<locked>>
81%
42554
69%
**77
100%
Accurate 2520
<<locked>>
81%
43221
70%
**03
100%
[Accurate 2700]*
<<locked>>
83%
36463
59%
**90
90%
Accurate 4064
<<locked>>
81%
35810
58%
**72
100%
[Accurate 4350]*
<<locked>>
82%
26643
43%
**98
90%
Alliant AR-Comp
<<locked>>
81%
43598
70%
**87
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
37884
61%
**87
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
34751
56%
**52
97%
Alliant Reloder-10x
<<locked>>
81%
51401
83%
**56
100%
Alliant Reloder-15
<<locked>>
81%
37521
60%
**11
96%
[Alliant Reloder-16]*
<<locked>>
82%
28427
46%
**21
90%
[Alliant Reloder-17]*
<<locked>>
81%
30197
49%
**00
94%
[Alliant Reloder-23]*
<<locked>>
90%
25556
41%
**59
90%
[Alliant Reloder-26]*
<<locked>>
93%
30618
49%
**46
90%
Baschieri & Pellagri 107
<<locked>>
81%
40770
66%
**67
97%
Bofors RP3
<<locked>>
81%
34098
55%
**49
97%
[Bofors RP7]*
<<locked>>
85%
35781
58%
**13
90%
Hodgdon BL-C2
<<locked>>
81%
43178
70%
**23
99%
Hodgdon Benchmark
<<locked>>
81%
46267
75%
**87
100%
Hodgdon CFE223
<<locked>>
81%
46688
75%
**35
99%
Hodgdon H322
<<locked>>
81%
46673
75%
**30
100%
[Hodgdon H380]*
<<locked>>
81%
35433
57%
**56
94%
[Hodgdon H414]*
<<locked>>
84%
33939
55%
**59
90%
[Hodgdon H4350]*
<<locked>>
90%
38392
62%
**05
90%
Hodgdon H4895
<<locked>>
81%
42322
68%
**90
99%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
25005
40%
**10
91%
[Hodgdon LVR]*
<<locked>>
81%
29457
47%
**38
90%
[Hodgdon Superperformance]*
<<locked>>
89%
36956
60%
**25
90%
Hodgdon VARGET
<<locked>>
81%
37710
61%
**88
97%
Hodgdon LEVERevolution
<<locked>>
81%
35882
58%
**05
97%
Hodgdon TrailBoss
<<locked>>
83%
27441
44%
**86
100%
IMR 3031
<<locked>>
81%
37811
61%
**25
100%
IMR 4064
<<locked>>
81%
34969
56%
**13
95%
[IMR 4166 Enduron]*
<<locked>>
81%
35317
57%
**80
91%
IMR 4198
<<locked>>
81%
51619
83%
**20
100%
[IMR 4350]*
<<locked>>
89%
35737
58%
**39
90%
[IMR 4451 Enduron]*
<<locked>>
82%
34403
55%
**87
90%
[IMR 4831]*
<<locked>>
85%
26426
43%
**72
90%
IMR 4895
<<locked>>
81%
38479
62%
**41
97%
IMR 8208 XBR
<<locked>>
81%
44106
71%
**87
99%
Lovex D073.5
<<locked>>
81%
49690
80%
**62
100%
Lovex D073.6
<<locked>>
81%
40741
66%
**61
100%
Lovex S060
<<locked>>
81%
42409
68%
**21
98%
Lovex S062
<<locked>>
81%
37188
60%
**72
98%
[Lovex S065]*
<<locked>>
81%
30487
49%
**11
90%
[Lovex S070]*
<<locked>>
85%
33011
53%
**87
90%
Norma 201
<<locked>>
81%
41002
66%
**34
99%
Norma 202
<<locked>>
81%
41278
66%
**48
100%
Norma 203B
<<locked>>
81%
37043
60%
**02
97%
[Norma 204]*
<<locked>>
93%
41031
66%
**70
90%
[Norma URP]*
<<locked>>
81%
27369
44%
**98
90%
Ramshot Big Game
<<locked>>
81%
36376
59%
**08
96%
[Ramshot Hunter]*
<<locked>>
87%
32561
52%
**23
90%
Ramshot TAC
<<locked>>
81%
44005
71%
**87
96%
Ramshot Wild Boar
<<locked>>
81%
43178
70%
**07
98%
Ramshot X-Terminator
<<locked>>
81%
47761
77%
**33
99%
ReloadSwiss RS 14
<<locked>>
81%
26832
43%
**03
100%
ReloadSwiss RS 40
<<locked>>
81%
49545
80%
**72
100%
[ReloadSwiss RS 50]*
<<locked>>
81%
36013
58%
**36
92%
ReloadSwiss RS 52
<<locked>>
81%
38783
62%
**93
97%
ReloadSwiss RS 60
<<locked>>
81%
32140
52%
**72
98%
[ReloadSwiss RS 62]*
<<locked>>
83%
28123
45%
**38
90%
[ReloadSwiss RS 70]*
<<locked>>
86%
31836
51%
**13
90%
Rottweil R 901
<<locked>>
81%
44875
72%
**77
100%
Rottweil R 902
<<locked>>
81%
38972
63%
**92
98%
Rottweil R 903
<<locked>>
81%
32271
52%
**03
96%
[Rottweil R 907]*
<<locked>>
85%
35781
58%
**13
90%
SNPE Vectan SP 11
<<locked>>
81%
33388
54%
**39
95%
SNPE Vectan SP 7
<<locked>>
81%
42163
68%
**57
96%
SNPE Vectan SP 9
<<locked>>
81%
40219
65%
**44
98%
SNPE Vectan Tubal 3000
<<locked>>
81%
42699
69%
**98
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
35331
57%
**80
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
85%
32866
53%
**41
90%
[Shooters World Long Rifle]*
<<locked>>
81%
30487
49%
**11
90%
Shooters World Match Rifle
<<locked>>
81%
40741
66%
**61
100%
Shooters World Precision
<<locked>>
81%
37188
60%
**72
98%
Somchem S321
<<locked>>
81%
47485
76%
**59
100%
Somchem S335
<<locked>>
81%
42148
68%
**02
100%
Somchem S341
<<locked>>
81%
41640
67%
**57
98%
Somchem S355
<<locked>>
81%
33301
54%
**13
96%
[Somchem S365]*
<<locked>>
81%
24134
39%
**33
92%
Vihtavuori N130
<<locked>>
81%
48573
78%
**67
100%
Vihtavuori N133
<<locked>>
81%
43047
69%
**02
100%
Vihtavuori N135
<<locked>>
81%
36230
58%
**46
100%
Vihtavuori N140
<<locked>>
81%
39088
63%
**88
100%
Vihtavuori N150
<<locked>>
81%
31734
51%
**54
97%
[Vihtavuori N160]*
<<locked>>
81%
28137
45%
**88
91%
Vihtavuori N530
<<locked>>
81%
43990
71%
**80
99%
Vihtavuori N540
<<locked>>
81%
37478
60%
**72
100%
[Vihtavuori N550]*
<<locked>>
81%
27557
44%
**92
90%
[Vihtavuori N555]*
<<locked>>
89%
25759
41%
**98
90%
[Winchester 6.5 StaBALL]*
<<locked>>
81%
28282
46%
**65
93%
Winchester 748
<<locked>>
81%
46702
75%
**75
100%
[Winchester 760]*
<<locked>>
84%
33939
55%
**59
90%
Winchester StaBALL Match
<<locked>>
81%
49734
80%
**15
100%

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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