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Load data for .30-378 Weath. Mag. + .308 | 150gr | Speer BT FMJ

Recommended Powder(s):

.30-378 Weath. Mag. + .308 | 150gr | Speer BT FMJ

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr | Speer BT FMJ
Manufacturer SKU:
2018
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.170" | 29.7mm
Caliber:
.30-378 Weath. Mag. load data
Case Length (l3):
2.913" | 74.0mm
Cartridge Length (C.O.L.):
3.600" | 91.4mm
Seated Depth:
0.483" | 12.3mm
Shank Seated Depth:
0.306" | 7.8mm
Case Capacity:
133.0 Grains of Water | 8.64 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B6146_C333
Last updated:
2025-01-01
Recommended Twist Rate:
1:14 - 1:11

Load data for 88 loads in caliber .30-378 Weath. Mag. with .308 | 150gr | Speer BT FMJ bullet and 44 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 2209
<<locked>>
86%
57421
90%
**87
100%
ADI AR 2213
<<locked>>
89%
56884
89%
**07
99%
ADI AR 2217
<<locked>>
97%
55651
87%
**84
99%
[ADI AR 2218]*
<<locked>>
97%
48254
76%
**02
93%
ADI AR 2225
<<locked>>
97%
50285
79%
**25
100%
Accurate 3100
<<locked>>
89%
56942
89%
**09
100%
Accurate MAGPRO
<<locked>>
89%
57406
90%
**23
98%
Alliant Reloder-19
<<locked>>
86%
56898
89%
**74
99%
Alliant Reloder-22
<<locked>>
89%
57363
90%
**04
100%
Alliant Reloder-23
<<locked>>
90%
56855
89%
**38
100%
Alliant Reloder-25 👍
<<locked>>
94%
57130
90%
**04
100%
Alliant Reloder-26
<<locked>>
85%
57101
89%
**17
100%
Alliant Reloder-33
<<locked>>
97%
53476
84%
**71
95%
Hodgdon H1000
<<locked>>
97%
55651
87%
**84
99%
Hodgdon H4350
<<locked>>
85%
57029
89%
**19
100%
Hodgdon H4831
<<locked>>
92%
56971
89%
**51
98%
Hodgdon H4831 SC
<<locked>>
88%
57334
90%
**64
98%
Hodgdon Hybrid 100V
<<locked>>
84%
57406
90%
**99
100%
Hodgdon Retumbo
<<locked>>
97%
50285
79%
**25
100%
Hodgdon TrailBoss
<<locked>>
97%
36085
57%
**10
100%
IMR 4831
<<locked>>
86%
57043
89%
**22
100%
IMR 4955 Enduron
<<locked>>
89%
57363
90%
**28
99%
IMR 7828 SSC 👍
<<locked>>
88%
57290
90%
**33
99%
[IMR 7977 Enduron]*
<<locked>>
94%
57072
89%
**76
93%
IMR 8133 Enduron
<<locked>>
97%
46398
73%
**20
97%
Lovex S071
<<locked>>
94%
57203
90%
**05
100%
Norma 217
<<locked>>
97%
46978
74%
**50
99%
Norma MRP
<<locked>>
87%
57363
90%
**30
100%
Ramshot Magnum
<<locked>>
89%
57348
90%
**74
100%
ReloadSwiss RS 14
<<locked>>
97%
36869
58%
**59
100%
ReloadSwiss RS 76 👍
<<locked>>
94%
57334
90%
**83
100%
ReloadSwiss RS 80
<<locked>>
96%
57130
90%
**40
98%
Rottweil R 904
<<locked>>
86%
57014
89%
**41
99%
Rottweil R 905
<<locked>>
87%
57261
90%
**81
100%
Somchem S361
<<locked>>
85%
57130
90%
**99
98%
Somchem S385
<<locked>>
87%
57363
90%
**35
100%
Vihtavuori N165
<<locked>>
92%
57421
90%
**19
100%
[Vihtavuori N170]*
<<locked>>
97%
51822
81%
**23
93%
Vihtavuori N555
<<locked>>
87%
57334
90%
**58
100%
Vihtavuori N560 👍
<<locked>>
89%
57072
89%
**27
99%
Vihtavuori N565
<<locked>>
93%
57334
90%
**04
99%
Vihtavuori N568
<<locked>>
96%
57290
90%
**40
98%
Vihtavuori N570
<<locked>>
97%
57232
90%
**63
96%
Winchester StaBALL HD 👍
<<locked>>
90%
57363
90%
**46
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47776
75%
**04
98%
ADI AR 2213
<<locked>>
81%
42801
67%
**22
95%
[ADI AR 2217]*
<<locked>>
81%
31836
50%
**07
90%
[ADI AR 2218]*
<<locked>>
94%
42786
67%
**51
90%
[ADI AR 2225]*
<<locked>>
81%
29225
46%
**61
92%
Accurate 3100
<<locked>>
81%
43569
68%
**59
99%
[Accurate MAGPRO]*
<<locked>>
81%
42917
67%
**12
93%
Alliant Reloder-19
<<locked>>
81%
47630
75%
**97
98%
Alliant Reloder-22
<<locked>>
81%
43555
68%
**38
97%
Alliant Reloder-23
<<locked>>
81%
42177
66%
**86
100%
Alliant Reloder-25
<<locked>>
81%
36550
57%
**90
98%
Alliant Reloder-26
<<locked>>
81%
47979
75%
**50
100%
[Alliant Reloder-33]*
<<locked>>
89%
40089
63%
**82
90%
[Hodgdon H1000]*
<<locked>>
81%
31836
50%
**07
90%
Hodgdon H4350
<<locked>>
81%
50995
80%
**14
99%
[Hodgdon H4831]*
<<locked>>
81%
40176
63%
**13
94%
Hodgdon H4831 SC
<<locked>>
81%
44715
70%
**12
95%
Hodgdon Hybrid 100V
<<locked>>
81%
51416
81%
**07
100%
[Hodgdon Retumbo]*
<<locked>>
81%
29225
46%
**61
92%
Hodgdon TrailBoss
<<locked>>
81%
28616
45%
**32
100%
IMR 4831
<<locked>>
81%
48950
77%
**74
100%
IMR 4955 Enduron
<<locked>>
81%
44135
69%
**69
96%
IMR 7828 SSC
<<locked>>
81%
44222
69%
**58
96%
[IMR 7977 Enduron]*
<<locked>>
89%
48646
76%
**22
90%
[IMR 8133 Enduron]*
<<locked>>
86%
31894
50%
**49
90%
Lovex S071
<<locked>>
81%
37333
59%
**18
98%
[Norma 217]*
<<locked>>
82%
27978
44%
**38
90%
Norma MRP
<<locked>>
81%
46325
73%
**14
99%
Ramshot Magnum
<<locked>>
81%
41466
65%
**72
97%
ReloadSwiss RS 14
<<locked>>
81%
29385
46%
**78
100%
ReloadSwiss RS 76
<<locked>>
81%
35012
55%
**81
96%
[ReloadSwiss RS 80]*
<<locked>>
83%
34809
55%
**35
90%
Rottweil R 904
<<locked>>
81%
48428
76%
**81
97%
Rottweil R 905
<<locked>>
81%
47166
74%
**87
98%
Somchem S361
<<locked>>
81%
49734
78%
**64
97%
Somchem S385
<<locked>>
81%
47616
75%
**64
99%
Vihtavuori N165
<<locked>>
81%
40306
63%
**84
97%
[Vihtavuori N170]*
<<locked>>
92%
43729
69%
**63
90%
Vihtavuori N555
<<locked>>
81%
46920
74%
**77
100%
Vihtavuori N560
<<locked>>
81%
43729
69%
**51
95%
[Vihtavuori N565]*
<<locked>>
81%
38087
60%
**81
93%
[Vihtavuori N568]*
<<locked>>
83%
36143
57%
**71
90%
[Vihtavuori N570]*
<<locked>>
88%
41307
65%
**28
90%
Winchester StaBALL HD
<<locked>>
81%
40437
63%
**25
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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