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Load data for .30-378 Weath. Mag. + .308 | 170gr | Swift A-Frame

Recommended Powder(s): ADI AR 2225, Hodgdon Retumbo, Norma 217, ReloadSwiss RS 80, Vihtavuori N568

.30-378 Weath. Mag. + .308 | 170gr | Swift A-Frame

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 170gr | Swift A-Frame
Bullet Weight:
170gr | 11.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.30-378 Weath. Mag. load data
Case Length (l3):
2.913" | 74.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B10846_C333
Last updated:
2026-02-02

Load data for 88 loads in caliber .30-378 Weath. Mag. with .308 | 170gr | Swift A-Frame bullet and 44 powders such as ADI AR 2225, Hodgdon Retumbo, 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>>
85%
56942
89%
**53
100%
ADI AR 2217
<<locked>>
93%
57334
90%
**40
100%
ADI AR 2218
<<locked>>
97%
56884
89%
**35
98%
ADI AR 2225 👍
<<locked>>
95%
57217
90%
**79
100%
Accurate 3100
<<locked>>
84%
57145
90%
**38
100%
[Accurate 8700]*
<<locked>>
97%
46601
73%
**36
94%
Accurate MAGPRO
<<locked>>
84%
57392
90%
**56
99%
Alliant Reloder-22
<<locked>>
84%
57174
90%
**40
100%
Alliant Reloder-23
<<locked>>
85%
57319
90%
**74
100%
Alliant Reloder-25
<<locked>>
89%
57392
90%
**46
100%
Alliant Reloder-33
<<locked>>
94%
57363
90%
**02
98%
Alliant Reloder-50
<<locked>>
97%
56391
88%
**56
97%
Baschieri & Pellagri 109
<<locked>>
87%
57348
90%
**04
98%
Bofors RP15
<<locked>>
87%
57159
90%
**36
100%
Bofors RP30
<<locked>>
91%
57130
90%
**53
100%
Bofors RP5
<<locked>>
84%
57174
90%
**40
100%
Hodgdon H1000
<<locked>>
93%
57334
90%
**40
100%
Hodgdon H4831
<<locked>>
87%
57043
89%
**94
99%
Hodgdon H4831 SC
<<locked>>
84%
57043
89%
**94
99%
Hodgdon Retumbo 👍
<<locked>>
95%
57217
90%
**79
100%
Hodgdon TrailBoss
<<locked>>
97%
36579
57%
**08
100%
IMR 4955 Enduron
<<locked>>
85%
56869
89%
**71
99%
IMR 7828 SSC
<<locked>>
84%
57290
90%
**63
100%
IMR 7977 Enduron
<<locked>>
90%
57188
90%
**45
95%
IMR 8133 Enduron
<<locked>>
97%
56202
88%
**50
100%
[Lovex D100]*
<<locked>>
94%
57377
90%
**71
93%
Lovex S071
<<locked>>
89%
57261
90%
**45
100%
Norma 217 👍
<<locked>>
97%
57421
90%
**76
100%
[Ramshot LRT]*
<<locked>>
97%
57145
90%
**79
93%
Ramshot Magnum
<<locked>>
85%
57276
90%
**14
100%
ReloadSwiss RS 14
<<locked>>
97%
37492
59%
**47
100%
ReloadSwiss RS 76
<<locked>>
89%
57116
89%
**02
100%
ReloadSwiss RS 80 👍
<<locked>>
91%
57145
90%
**82
99%
SNPE Vectan SP 13
<<locked>>
97%
48588
76%
**56
95%
[Shooters World 50 BMG]*
<<locked>>
94%
57377
90%
**71
93%
[Vihtavuori 20N29]*
<<locked>>
97%
47166
74%
**36
92%
[Vihtavuori 24N41]*
<<locked>>
97%
57058
89%
**30
93%
Vihtavuori N165
<<locked>>
87%
57421
90%
**61
100%
Vihtavuori N170
<<locked>>
95%
57116
90%
**87
96%
Vihtavuori N560
<<locked>>
84%
57072
89%
**69
99%
Vihtavuori N565
<<locked>>
88%
57174
90%
**33
99%
Vihtavuori N568 👍
<<locked>>
91%
57290
90%
**82
99%
Vihtavuori N570
<<locked>>
92%
57130
90%
**05
97%
Winchester StaBALL HD
<<locked>>
85%
57029
89%
**53
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2213
<<locked>>
81%
50386
79%
**31
99%
ADI AR 2217
<<locked>>
81%
38130
60%
**56
96%
[ADI AR 2218]*
<<locked>>
85%
38014
60%
**99
90%
ADI AR 2225
<<locked>>
81%
35418
55%
**33
98%
Accurate 3100
<<locked>>
81%
51663
81%
**56
100%
[Accurate 8700]*
<<locked>>
91%
37405
59%
**23
90%
Accurate MAGPRO
<<locked>>
81%
50937
80%
**41
97%
Alliant Reloder-22
<<locked>>
81%
51329
80%
**31
100%
Alliant Reloder-23
<<locked>>
81%
49908
78%
**59
100%
Alliant Reloder-25
<<locked>>
81%
43859
69%
**07
100%
[Alliant Reloder-33]*
<<locked>>
81%
36318
57%
**43
90%
[Alliant Reloder-50]*
<<locked>>
85%
37536
59%
**59
90%
Baschieri & Pellagri 109
<<locked>>
81%
47529
74%
**20
96%
Bofors RP15
<<locked>>
81%
47993
75%
**69
99%
Bofors RP30
<<locked>>
81%
41336
65%
**38
97%
Bofors RP5
<<locked>>
81%
51329
80%
**31
100%
Hodgdon H1000
<<locked>>
81%
38130
60%
**56
96%
Hodgdon H4831
<<locked>>
81%
46615
73%
**07
98%
Hodgdon H4831 SC
<<locked>>
81%
51837
81%
**02
99%
Hodgdon Retumbo
<<locked>>
81%
35418
55%
**33
98%
Hodgdon TrailBoss
<<locked>>
81%
29196
46%
**37
100%
IMR 4955 Enduron
<<locked>>
81%
50212
79%
**49
98%
IMR 7828 SSC
<<locked>>
81%
52272
82%
**71
99%
[IMR 7977 Enduron]*
<<locked>>
81%
43265
68%
**72
90%
[IMR 8133 Enduron]*
<<locked>>
81%
33098
52%
**38
93%
[Lovex D100]*
<<locked>>
88%
47210
74%
**84
90%
Lovex S071
<<locked>>
81%
44628
70%
**22
100%
Norma 217
<<locked>>
81%
33736
53%
**80
96%
[Ramshot LRT]*
<<locked>>
93%
49806
78%
**25
90%
Ramshot Magnum
<<locked>>
81%
50067
78%
**89
100%
ReloadSwiss RS 14
<<locked>>
81%
30095
47%
**83
100%
ReloadSwiss RS 76
<<locked>>
81%
42946
67%
**46
100%
ReloadSwiss RS 80
<<locked>>
81%
39769
62%
**25
95%
[SNPE Vectan SP 13]*
<<locked>>
90%
38218
60%
**20
90%
[Shooters World 50 BMG]*
<<locked>>
88%
47210
74%
**84
90%
[Vihtavuori 20N29]*
<<locked>>
95%
42975
67%
**48
90%
[Vihtavuori 24N41]*
<<locked>>
93%
49676
78%
**89
90%
Vihtavuori N165
<<locked>>
81%
47268
74%
**84
99%
[Vihtavuori N170]*
<<locked>>
83%
39001
61%
**10
90%
Vihtavuori N560
<<locked>>
81%
51605
81%
**68
99%
Vihtavuori N565
<<locked>>
81%
45963
72%
**17
98%
Vihtavuori N568
<<locked>>
81%
40669
64%
**48
95%
[Vihtavuori N570]*
<<locked>>
81%
39059
61%
**28
91%
Winchester StaBALL HD
<<locked>>
81%
50241
79%
**48
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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