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Load data for .30-378 Weath. Mag. + .308 | 200gr | Speer TBBC

Recommended Powder(s): ADI AR 2217, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80, Vihtavuori N568

.30-378 Weath. Mag. + .308 | 200gr | Speer TBBC

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 200gr | Speer TBBC
Manufacturer SKU:
1770
Bullet Weight:
200gr | 13.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.370" | 34.8mm
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:
0.683" | 17.3mm
Shank Seated Depth:
0.683" | 17.3mm
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_B6177_C333
Last updated:
2025-01-01

Load data for 78 loads in caliber .30-378 Weath. Mag. with .308 | 200gr | Speer TBBC bullet and 39 powders such as ADI AR 2217, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80, Vihtavuori N568. 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 2213
<<locked>>
84%
57000
89%
**46
100%
ADI AR 2217 👍
<<locked>>
92%
57029
89%
**46
100%
ADI AR 2218
<<locked>>
96%
57392
90%
**68
99%
ADI AR 2225
<<locked>>
94%
57116
90%
**66
100%
Accurate 3100
<<locked>>
83%
56753
89%
**35
100%
Accurate 8700
<<locked>>
97%
47630
75%
**85
96%
Accurate MAGPRO
<<locked>>
84%
57290
90%
**63
99%
Alliant Reloder-22
<<locked>>
84%
57130
90%
**40
100%
Alliant Reloder-23
<<locked>>
84%
57377
90%
**67
100%
Alliant Reloder-25
<<locked>>
88%
57261
90%
**33
100%
Alliant Reloder-33
<<locked>>
93%
56971
89%
**02
99%
Alliant Reloder-50
<<locked>>
96%
57159
90%
**92
98%
Hodgdon H1000
<<locked>>
92%
57029
89%
**46
100%
Hodgdon H4831
<<locked>>
86%
57000
89%
**07
100%
Hodgdon H4831 SC
<<locked>>
83%
57261
90%
**04
100%
Hodgdon Retumbo
<<locked>>
94%
57116
90%
**66
100%
[Hodgdon US 869]*
<<locked>>
97%
52402
82%
**58
93%
Hodgdon TrailBoss
<<locked>>
97%
36579
57%
**47
100%
IMR 4955 Enduron
<<locked>>
84%
57058
89%
**84
100%
IMR 7977 Enduron
<<locked>>
89%
57348
90%
**58
96%
IMR 8133 Enduron 👍
<<locked>>
97%
57217
90%
**69
100%
Lovex D100
<<locked>>
93%
57232
90%
**87
95%
Lovex S071
<<locked>>
88%
57043
89%
**44
100%
Norma 217 👍
<<locked>>
96%
57145
90%
**63
100%
Ramshot LRT
<<locked>>
96%
57000
89%
**89
95%
Ramshot Magnum
<<locked>>
84%
57072
89%
**10
100%
ReloadSwiss RS 14
<<locked>>
97%
37550
59%
**86
100%
ReloadSwiss RS 76
<<locked>>
88%
57392
90%
**05
100%
ReloadSwiss RS 80 👍
<<locked>>
90%
57087
89%
**86
100%
SNPE Vectan SP 13
<<locked>>
97%
49777
78%
**02
96%
[Vihtavuori 20N29]*
<<locked>>
97%
48037
75%
**89
94%
Vihtavuori 24N41
<<locked>>
96%
57363
90%
**56
95%
Vihtavuori N165
<<locked>>
86%
57217
90%
**64
100%
Vihtavuori N170
<<locked>>
95%
57087
89%
**04
98%
Vihtavuori N560
<<locked>>
83%
56942
89%
**66
100%
Vihtavuori N565
<<locked>>
87%
57116
90%
**43
100%
Vihtavuori N568 👍
<<locked>>
90%
56782
89%
**76
100%
Vihtavuori N570
<<locked>>
91%
56884
89%
**22
99%
Winchester StaBALL HD
<<locked>>
84%
57116
90%
**33
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2213
<<locked>>
81%
51822
81%
**61
100%
ADI AR 2217
<<locked>>
81%
38957
61%
**12
98%
[ADI AR 2218]*
<<locked>>
81%
33968
53%
**43
90%
ADI AR 2225
<<locked>>
81%
36260
57%
**85
99%
Accurate 3100
<<locked>>
81%
52301
82%
**69
100%
[Accurate 8700]*
<<locked>>
87%
33373
52%
**70
90%
Accurate MAGPRO
<<locked>>
81%
52127
82%
**81
99%
Alliant Reloder-22
<<locked>>
81%
52591
82%
**64
100%
Alliant Reloder-23
<<locked>>
81%
51227
80%
**79
100%
Alliant Reloder-25
<<locked>>
81%
45208
71%
**40
100%
[Alliant Reloder-33]*
<<locked>>
81%
37188
58%
**05
93%
[Alliant Reloder-50]*
<<locked>>
82%
33634
53%
**00
90%
Hodgdon H1000
<<locked>>
81%
38957
61%
**12
98%
Hodgdon H4831
<<locked>>
81%
47906
75%
**49
99%
Hodgdon H4831 SC
<<locked>>
81%
53185
83%
**41
100%
Hodgdon Retumbo
<<locked>>
81%
36260
57%
**85
99%
[Hodgdon US 869]*
<<locked>>
92%
44179
69%
**97
90%
Hodgdon TrailBoss
<<locked>>
81%
29211
46%
**90
100%
IMR 4955 Enduron
<<locked>>
81%
51300
80%
**82
99%
[IMR 7977 Enduron]*
<<locked>>
81%
43642
68%
**08
92%
IMR 8133 Enduron
<<locked>>
81%
33765
53%
**97
96%
[Lovex D100]*
<<locked>>
84%
42032
66%
**05
90%
Lovex S071
<<locked>>
81%
45368
71%
**57
100%
Norma 217
<<locked>>
81%
34389
54%
**33
98%
[Ramshot LRT]*
<<locked>>
89%
43976
69%
**46
90%
Ramshot Magnum
<<locked>>
81%
51358
80%
**22
100%
ReloadSwiss RS 14
<<locked>>
81%
30095
47%
**29
100%
ReloadSwiss RS 76
<<locked>>
81%
44309
69%
**79
100%
ReloadSwiss RS 80
<<locked>>
81%
40843
64%
**84
97%
[SNPE Vectan SP 13]*
<<locked>>
85%
33721
53%
**61
90%
[Vihtavuori 20N29]*
<<locked>>
91%
38363
60%
**82
90%
[Vihtavuori 24N41]*
<<locked>>
88%
44019
69%
**10
90%
Vihtavuori N165
<<locked>>
81%
48182
76%
**13
100%
[Vihtavuori N170]*
<<locked>>
81%
37144
58%
**03
91%
Vihtavuori N560
<<locked>>
81%
52837
83%
**00
100%
Vihtavuori N565
<<locked>>
81%
46717
73%
**62
99%
Vihtavuori N568
<<locked>>
81%
41771
65%
**00
97%
[Vihtavuori N570]*
<<locked>>
81%
39972
63%
**74
94%
Winchester StaBALL HD
<<locked>>
81%
51605
81%
**64
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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