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Load data for .375 Raptor + .375 | 300gr | Speer TBBC

Recommended Powder(s):

.375 Raptor + .375 | 300gr | Speer TBBC

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.375 | 300gr | Speer TBBC
Manufacturer SKU:
1780
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.375" | 9.52mm
Bullet Length:
<<locked>>
Caliber:
.375 Raptor load data
Case Length (l3):
1.865" | 47.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
60.0 Grains of Water | 3.90 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
58015 psi | 4000 bar
LID:
LID_B6249_C556
Last updated:
2026-02-05

Load data for 144 loads in caliber .375 Raptor with .375 | 300gr | Speer TBBC bullet and 72 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".

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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 2206H
<<locked>>
97%
42873
74%
**41
95%
ADI AR 2207
<<locked>>
90%
51343
89%
**60
100%
ADI AR 2219 👍
<<locked>>
93%
51692
89%
**46
100%
Accurate 2015
<<locked>>
96%
48022
83%
**67
100%
[Accurate 2200]*
<<locked>>
97%
47311
82%
**47
94%
Accurate 2230
<<locked>>
96%
51517
89%
**13
97%
Accurate 2460
<<locked>>
96%
51503
89%
**29
99%
Accurate 2495
<<locked>>
96%
39218
68%
**34
100%
Accurate 2520
<<locked>>
97%
42395
73%
**64
98%
Accurate 4064
<<locked>>
96%
32576
56%
**29
97%
Alliant AR-Comp
<<locked>>
97%
42815
74%
**67
100%
[Alliant Reloder- TS 15.5]*
<<locked>>
97%
34098
59%
**26
93%
Alliant Reloder-10x
<<locked>>
96%
51866
89%
**13
100%
[Alliant Reloder-15]*
<<locked>>
97%
37550
65%
**75
92%
Alliant Reloder-7
<<locked>>
88%
51300
88%
**54
100%
Baschieri & Pellagri 106
<<locked>>
93%
51938
90%
**60
100%
[Baschieri & Pellagri 107]*
<<locked>>
96%
42221
73%
**31
93%
[Bofors RP3]*
<<locked>>
97%
32808
57%
**26
93%
Hodgdon BL-C2
<<locked>>
96%
42670
74%
**77
96%
Hodgdon Benchmark
<<locked>>
97%
48660
84%
**54
98%
Hodgdon CFE BLK
<<locked>>
89%
51227
88%
**47
98%
Hodgdon H322 👍
<<locked>>
97%
48225
83%
**03
100%
Hodgdon H335 👍
<<locked>>
94%
51837
89%
**59
100%
Hodgdon H4198
<<locked>>
90%
51634
89%
**44
100%
Hodgdon H4895
<<locked>>
97%
42960
74%
**51
96%
IMR 3031
<<locked>>
97%
36999
64%
**98
99%
IMR 4198
<<locked>>
95%
51866
89%
**70
100%
IMR 4227
<<locked>>
84%
51735
89%
**01
100%
[IMR 4895]*
<<locked>>
97%
38305
66%
**05
93%
IMR 8208 XBR
<<locked>>
97%
45934
79%
**60
97%
Lovex D073.4
<<locked>>
95%
51851
89%
**19
99%
Lovex D073.5
<<locked>>
97%
51503
89%
**29
99%
Lovex D073.6
<<locked>>
96%
38943
67%
**18
97%
Lovex S053
<<locked>>
85%
51880
89%
**78
100%
Lovex S060
<<locked>>
97%
45034
78%
**98
95%
Lovex S062
<<locked>>
97%
36550
63%
**42
95%
Norma 200
<<locked>>
91%
51082
88%
**90
100%
Norma 201
<<locked>>
96%
41553
72%
**01
96%
Norma 202
<<locked>>
97%
41031
71%
**21
98%
[Norma 203B]*
<<locked>>
97%
36579
63%
**69
93%
[Ramshot Big Game]*
<<locked>>
97%
37521
65%
**72
92%
[Ramshot TAC]*
<<locked>>
97%
46543
80%
**51
92%
Ramshot Wild Boar
<<locked>>
97%
44556
77%
**70
95%
Ramshot X-Terminator
<<locked>>
97%
50618
87%
**96
96%
ReloadSwiss RS 36
<<locked>>
84%
50966
88%
**31
100%
ReloadSwiss RS 40 👍
<<locked>>
96%
50981
88%
**23
99%
[ReloadSwiss RS 52]*
<<locked>>
97%
39001
67%
**37
92%
[ReloadSwiss RS 60]*
<<locked>>
97%
33373
58%
**26
93%
Rottweil R 901
<<locked>>
97%
46267
80%
**54
99%
Rottweil R 902
<<locked>>
97%
39378
68%
**62
95%
SNPE Vectan BA6 1/2
<<locked>>
88%
51387
89%
**47
100%
SNPE Vectan SP 10 👍
<<locked>>
93%
51372
89%
**42
100%
[SNPE Vectan SP 7]*
<<locked>>
97%
43453
75%
**21
92%
[SNPE Vectan SP 9]*
<<locked>>
97%
41133
71%
**11
94%
SNPE Vectan Tubal 3000
<<locked>>
96%
44440
77%
**82
99%
SNPE Vectan Tubal 5000
<<locked>>
96%
35723
62%
**73
98%
Shooters World Match Rifle
<<locked>>
96%
38943
67%
**18
97%
Shooters World Precision
<<locked>>
97%
36550
63%
**42
95%
Shooters World Tactical Rifle
<<locked>>
94%
51924
90%
**93
97%
Somchem S321
<<locked>>
96%
48965
84%
**23
98%
Somchem S335
<<locked>>
96%
43062
74%
**88
99%
[Somchem S341]*
<<locked>>
96%
42830
74%
**21
94%
[Somchem S355]*
<<locked>>
96%
32169
55%
**83
92%
Vihtavuori N120
<<locked>>
92%
51605
89%
**21
100%
Vihtavuori N130
<<locked>>
97%
49617
86%
**44
100%
Vihtavuori N133
<<locked>>
97%
40872
70%
**52
100%
Vihtavuori N135
<<locked>>
97%
31111
54%
**64
98%
Vihtavuori N140
<<locked>>
97%
38334
66%
**62
98%
Vihtavuori N530
<<locked>>
96%
47892
83%
**96
97%
Vihtavuori N540
<<locked>>
97%
38406
66%
**85
98%
Winchester 748
<<locked>>
96%
47355
82%
**29
98%
Winchester StaBALL Match
<<locked>>
96%
51706
89%
**69
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
86%
30734
53%
**31
90%
ADI AR 2207
<<locked>>
81%
39784
69%
**26
100%
ADI AR 2219
<<locked>>
81%
35114
61%
**13
98%
Accurate 2015
<<locked>>
81%
30023
52%
**01
98%
[Accurate 2200]*
<<locked>>
89%
36912
64%
**96
90%
[Accurate 2230]*
<<locked>>
81%
30734
53%
**11
91%
[Accurate 2460]*
<<locked>>
81%
30414
52%
**21
93%
Accurate 2495
<<locked>>
81%
23525
41%
**45
96%
[Accurate 2520]*
<<locked>>
81%
24918
43%
**49
92%
[Accurate 4064]*
<<locked>>
81%
20204
35%
**50
91%
Alliant AR-Comp
<<locked>>
81%
26440
46%
**81
99%
[Alliant Reloder- TS 15.5]*
<<locked>>
91%
28660
49%
**14
90%
Alliant Reloder-10x
<<locked>>
81%
33272
57%
**60
100%
[Alliant Reloder-15]*
<<locked>>
93%
32808
57%
**93
90%
Alliant Reloder-7
<<locked>>
81%
41075
71%
**26
100%
Baschieri & Pellagri 106
<<locked>>
81%
35520
61%
**44
98%
[Baschieri & Pellagri 107]*
<<locked>>
92%
36492
63%
**36
90%
[Bofors RP3]*
<<locked>>
92%
28050
48%
**27
90%
[Hodgdon BL-C2]*
<<locked>>
83%
27644
48%
**01
90%
[Hodgdon Benchmark]*
<<locked>>
81%
30922
53%
**75
93%
Hodgdon CFE BLK
<<locked>>
81%
40118
69%
**03
95%
Hodgdon H322
<<locked>>
81%
29907
52%
**14
96%
Hodgdon H335
<<locked>>
81%
33953
59%
**03
97%
Hodgdon H4198
<<locked>>
81%
39421
68%
**80
98%
[Hodgdon H4895]*
<<locked>>
85%
29428
51%
**14
90%
[IMR 3031]*
<<locked>>
81%
23511
41%
**09
94%
IMR 4198
<<locked>>
81%
35157
61%
**47
100%
IMR 4227
<<locked>>
81%
46949
81%
**52
100%
[IMR 4895]*
<<locked>>
90%
30719
53%
**67
90%
[IMR 8208 XBR]*
<<locked>>
81%
28224
49%
**59
91%
[Lovex D073.4]*
<<locked>>
81%
31879
55%
**34
94%
[Lovex D073.5]*
<<locked>>
81%
30414
52%
**21
93%
[Lovex D073.6]*
<<locked>>
81%
23525
41%
**13
91%
Lovex S053
<<locked>>
81%
46209
80%
**16
100%
[Lovex S060]*
<<locked>>
84%
31024
53%
**68
90%
[Lovex S062]*
<<locked>>
86%
26832
46%
**52
90%
Norma 200
<<locked>>
81%
37275
64%
**13
100%
[Norma 201]*
<<locked>>
82%
26527
46%
**29
90%
[Norma 202]*
<<locked>>
81%
25628
44%
**32
93%
[Norma 203B]*
<<locked>>
91%
30835
53%
**60
90%
[Ramshot Big Game]*
<<locked>>
93%
33678
58%
**03
90%
[Ramshot TAC]*
<<locked>>
93%
40785
70%
**69
90%
[Ramshot Wild Boar]*
<<locked>>
87%
32155
55%
**64
90%
[Ramshot X-Terminator]*
<<locked>>
82%
32155
55%
**18
90%
ReloadSwiss RS 36
<<locked>>
81%
46717
81%
**82
100%
ReloadSwiss RS 40
<<locked>>
81%
31734
55%
**37
95%
[ReloadSwiss RS 52]*
<<locked>>
93%
34954
60%
**62
90%
[ReloadSwiss RS 60]*
<<locked>>
93%
29486
51%
**37
90%
Rottweil R 901
<<locked>>
81%
29182
50%
**72
95%
[Rottweil R 902]*
<<locked>>
84%
26847
46%
**32
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
42670
74%
**59
100%
SNPE Vectan SP 10
<<locked>>
81%
35143
61%
**16
97%
[SNPE Vectan SP 7]*
<<locked>>
93%
38493
66%
**49
90%
[SNPE Vectan SP 9]*
<<locked>>
88%
31850
55%
**50
90%
[SNPE Vectan Tubal 3000]*
<<locked>>
81%
28137
49%
**16
94%
[SNPE Vectan Tubal 5000]*
<<locked>>
83%
24366
42%
**50
93%
[Shooters World Match Rifle]*
<<locked>>
81%
23525
41%
**13
91%
[Shooters World Precision]*
<<locked>>
86%
26832
46%
**52
90%
[Shooters World Tactical Rifle]*
<<locked>>
81%
33765
58%
**37
93%
[Somchem S321]*
<<locked>>
81%
29269
50%
**11
92%
Somchem S335
<<locked>>
81%
27253
47%
**19
95%
[Somchem S341]*
<<locked>>
88%
32184
55%
**47
90%
[Somchem S355]*
<<locked>>
93%
29370
51%
**27
90%
Vihtavuori N120
<<locked>>
81%
37347
64%
**54
100%
Vihtavuori N130
<<locked>>
81%
31488
54%
**88
99%
Vihtavuori N133
<<locked>>
81%
26136
45%
**90
96%
[Vihtavuori N135]*
<<locked>>
84%
21582
37%
**40
94%
[Vihtavuori N140]*
<<locked>>
81%
24236
42%
**83
93%
[Vihtavuori N530]*
<<locked>>
81%
29385
51%
**95
92%
[Vihtavuori N540]*
<<locked>>
81%
23888
41%
**93
92%
[Winchester 748]*
<<locked>>
81%
28601
49%
**11
92%
[Winchester StaBALL Match]*
<<locked>>
81%
30618
53%
**37
90%

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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