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Load data for .30-378 Weath. Mag. + .308 | 180gr | Winchester FailSafe

Recommended Powder(s): ADI AR 2217, ADI AR 2225, Hodgdon H1000, Hodgdon Retumbo, Norma 217

.30-378 Weath. Mag. + .308 | 180gr | Winchester FailSafe

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 180gr | Winchester FailSafe
Bullet Weight:
180gr | 11.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.275" | 32.4mm
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:
0.588" | 14.9mm
Shank Seated Depth:
0.588" | 14.9mm
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_B6638_C333
Last updated:
2025-01-01

Load data for 84 loads in caliber .30-378 Weath. Mag. with .308 | 180gr | Winchester FailSafe bullet and 42 powders such as ADI AR 2217, ADI AR 2225, Hodgdon H1000, Hodgdon Retumbo, Norma 217. 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>>
86%
57203
90%
**87
100%
ADI AR 2217 👍
<<locked>>
94%
56840
89%
**71
100%
ADI AR 2218
<<locked>>
97%
55317
87%
**50
98%
ADI AR 2225 👍
<<locked>>
96%
57319
90%
**20
100%
Accurate 3100
<<locked>>
85%
56782
89%
**72
100%
[Accurate 8700]*
<<locked>>
97%
44309
69%
**38
94%
Accurate MAGPRO
<<locked>>
85%
57188
90%
**87
99%
Alliant Reloder-19
<<locked>>
83%
57261
90%
**48
100%
Alliant Reloder-22
<<locked>>
85%
57130
90%
**71
100%
Alliant Reloder-23
<<locked>>
86%
57377
90%
**09
100%
Alliant Reloder-25
<<locked>>
90%
57203
90%
**74
100%
Alliant Reloder-33
<<locked>>
95%
57421
90%
**40
98%
Alliant Reloder-50
<<locked>>
97%
53925
85%
**61
97%
Hodgdon H1000 👍
<<locked>>
94%
56840
89%
**71
100%
Hodgdon H4831
<<locked>>
88%
57319
90%
**35
99%
Hodgdon H4831 SC
<<locked>>
85%
57072
89%
**38
99%
Hodgdon Retumbo 👍
<<locked>>
96%
57319
90%
**20
100%
Hodgdon TrailBoss
<<locked>>
97%
36303
57%
**36
100%
IMR 4955 Enduron
<<locked>>
86%
57217
90%
**09
100%
IMR 7828 SSC
<<locked>>
84%
57290
90%
**94
100%
IMR 7977 Enduron
<<locked>>
91%
57377
90%
**82
95%
IMR 8133 Enduron
<<locked>>
97%
53911
84%
**51
100%
[Lovex D100]*
<<locked>>
94%
57029
89%
**99
94%
Lovex S071
<<locked>>
90%
56782
89%
**72
100%
Norma 217 👍
<<locked>>
97%
55245
87%
**71
100%
Norma MRP
<<locked>>
83%
57101
89%
**87
100%
[Ramshot LRT]*
<<locked>>
97%
55550
87%
**87
93%
Ramshot Magnum
<<locked>>
86%
57334
90%
**45
100%
ReloadSwiss RS 14
<<locked>>
96%
37231
58%
**78
100%
ReloadSwiss RS 76
<<locked>>
90%
57305
90%
**36
100%
ReloadSwiss RS 80
<<locked>>
92%
56985
89%
**10
99%
Rottweil R 905
<<locked>>
83%
57392
90%
**48
100%
[SNPE Vectan SP 13]*
<<locked>>
97%
46543
73%
**61
94%
[Vihtavuori 24N41]*
<<locked>>
97%
55825
87%
**41
93%
Vihtavuori N165
<<locked>>
88%
57217
90%
**95
100%
Vihtavuori N170
<<locked>>
96%
57319
90%
**22
97%
Vihtavuori N555
<<locked>>
83%
57377
90%
**12
100%
Vihtavuori N560
<<locked>>
85%
57087
89%
**04
100%
Vihtavuori N565
<<locked>>
89%
57116
90%
**77
100%
Vihtavuori N568
<<locked>>
92%
57000
89%
**17
99%
Vihtavuori N570
<<locked>>
93%
57276
90%
**46
98%
Winchester StaBALL HD
<<locked>>
86%
57145
90%
**77
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2213
<<locked>>
81%
48675
76%
**36
99%
ADI AR 2217
<<locked>>
81%
36564
57%
**71
96%
[ADI AR 2218]*
<<locked>>
86%
37028
58%
**23
90%
ADI AR 2225
<<locked>>
81%
33721
53%
**35
98%
Accurate 3100
<<locked>>
81%
49705
78%
**61
100%
[Accurate 8700]*
<<locked>>
91%
36434
57%
**48
90%
Accurate MAGPRO
<<locked>>
81%
49066
77%
**46
97%
Alliant Reloder-19
<<locked>>
81%
53316
84%
**82
100%
Alliant Reloder-22
<<locked>>
81%
49487
78%
**33
100%
Alliant Reloder-23
<<locked>>
81%
48211
76%
**64
100%
Alliant Reloder-25
<<locked>>
81%
42366
66%
**18
100%
[Alliant Reloder-33]*
<<locked>>
81%
34998
55%
**57
90%
[Alliant Reloder-50]*
<<locked>>
86%
36463
57%
**84
90%
Hodgdon H1000
<<locked>>
81%
36564
57%
**71
96%
Hodgdon H4831
<<locked>>
81%
45136
71%
**15
97%
Hodgdon H4831 SC
<<locked>>
81%
50270
79%
**13
99%
Hodgdon Retumbo
<<locked>>
81%
33721
53%
**35
98%
Hodgdon TrailBoss
<<locked>>
81%
29051
46%
**78
100%
IMR 4955 Enduron
<<locked>>
81%
48863
77%
**61
98%
IMR 7828 SSC
<<locked>>
81%
50633
79%
**79
99%
[IMR 7977 Enduron]*
<<locked>>
81%
42032
66%
**77
90%
[IMR 8133 Enduron]*
<<locked>>
81%
31328
49%
**49
93%
[Lovex D100]*
<<locked>>
88%
46412
73%
**02
90%
Lovex S071
<<locked>>
81%
42873
67%
**26
100%
Norma 217
<<locked>>
81%
31807
50%
**72
96%
Norma MRP
<<locked>>
81%
53069
83%
**12
100%
[Ramshot LRT]*
<<locked>>
93%
47892
75%
**40
90%
Ramshot Magnum
<<locked>>
81%
48138
75%
**94
100%
ReloadSwiss RS 14
<<locked>>
81%
29936
47%
**18
100%
ReloadSwiss RS 76
<<locked>>
81%
41002
64%
**41
100%
[ReloadSwiss RS 80]*
<<locked>>
81%
37840
59%
**20
94%
Rottweil R 905
<<locked>>
81%
53287
84%
**72
100%
[SNPE Vectan SP 13]*
<<locked>>
90%
37028
58%
**44
90%
[Vihtavuori 24N41]*
<<locked>>
93%
48501
76%
**04
90%
Vihtavuori N165
<<locked>>
81%
45745
72%
**95
99%
[Vihtavuori N170]*
<<locked>>
83%
37739
59%
**28
90%
Vihtavuori N555
<<locked>>
81%
53417
84%
**49
100%
Vihtavuori N560
<<locked>>
81%
49951
78%
**76
99%
Vihtavuori N565
<<locked>>
81%
44034
69%
**28
98%
[Vihtavuori N568]*
<<locked>>
81%
38885
61%
**46
94%
[Vihtavuori N570]*
<<locked>>
81%
37144
58%
**26
91%
Winchester StaBALL HD
<<locked>>
81%
47979
75%
**43
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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