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Load data for .300 Weath. Mag. + .308 | 155gr | Hornady A-MAX

Recommended Powder(s): Alliant Reloder-16, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70

.300 Weath. Mag. + .308 | 155gr | Hornady A-MAX

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 155gr | Hornady A-MAX
Manufacturer SKU:
30312
Bullet Weight:
155gr | 10.0g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.183" | 30.0mm
Caliber:
.300 Weath. Mag. load data
Case Length (l3):
2.824" | 71.7mm
Cartridge Length (C.O.L.):
3.507" | 89.1mm
Seated Depth:
0.500" | 12.7mm
Shank Seated Depth:
0.341" | 8.7mm
Case Capacity:
98.9 Grains of Water | 6.42 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B2675_C379
Last updated:
2025-01-01
Recommended Twist Rate:
1:14 - 1:12

Load data for 158 loads in caliber .300 Weath. Mag. with .308 | 155gr | Hornady A-MAX bullet and 79 powders such as Alliant Reloder-16, Hodgdon Superperformance, Ramshot Hunter, ReloadSwiss RS 62, ReloadSwiss RS 70. 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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  • .

    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.

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 2208
<<locked>>
86%
57203
90%
**81
100%
ADI AR 2209
<<locked>>
97%
57377
90%
**66
98%
ADI AR 2213
<<locked>>
97%
51721
81%
**91
95%
Accurate 2700
<<locked>>
87%
57348
90%
**28
99%
Accurate 3100
<<locked>>
97%
50633
79%
**99
99%
Accurate 4064
<<locked>>
84%
56681
89%
**38
100%
Accurate 4350
<<locked>>
91%
56985
89%
**33
100%
[Accurate MAGPRO]*
<<locked>>
97%
49632
78%
**61
93%
Alliant Reloder- TS 15.5
<<locked>>
85%
56855
89%
**84
100%
Alliant Reloder-15
<<locked>>
83%
57000
89%
**07
100%
Alliant Reloder-16 👍
<<locked>>
93%
56623
89%
**76
100%
Alliant Reloder-17
<<locked>>
88%
57217
90%
**89
100%
Alliant Reloder-19
<<locked>>
97%
56347
88%
**53
98%
Alliant Reloder-22
<<locked>>
97%
50705
79%
**94
97%
Alliant Reloder-23
<<locked>>
97%
48153
75%
**35
100%
Alliant Reloder-25
<<locked>>
97%
41756
65%
**33
98%
Alliant Reloder-26
<<locked>>
97%
55158
86%
**35
100%
Hodgdon CFE223
<<locked>>
83%
57261
90%
**40
100%
Hodgdon H380
<<locked>>
85%
57014
89%
**00
100%
Hodgdon H414
<<locked>>
87%
56985
89%
**53
99%
Hodgdon H4350
<<locked>>
94%
57043
89%
**04
99%
[Hodgdon H4831]*
<<locked>>
97%
47674
75%
**63
94%
Hodgdon H4831 SC
<<locked>>
97%
54273
85%
**77
95%
Hodgdon Hybrid 100V
<<locked>>
95%
56826
89%
**00
100%
Hodgdon LVR
<<locked>>
90%
56898
89%
**36
100%
Hodgdon Superperformance 👍
<<locked>>
90%
56840
89%
**79
99%
Hodgdon VARGET
<<locked>>
86%
57029
89%
**71
100%
Hodgdon TrailBoss
<<locked>>
97%
34983
55%
**16
100%
IMR 4064
<<locked>>
87%
57072
89%
**71
100%
IMR 4166 Enduron
<<locked>>
87%
56956
89%
**58
99%
IMR 4350
<<locked>>
93%
57217
90%
**00
99%
IMR 4451 Enduron
<<locked>>
88%
57101
89%
**87
99%
IMR 4831
<<locked>>
96%
57058
89%
**14
100%
IMR 4955 Enduron
<<locked>>
97%
52808
83%
**22
95%
IMR 7828 SSC
<<locked>>
97%
52634
82%
**23
96%
Lovex S062
<<locked>>
84%
57174
90%
**58
100%
Lovex S065
<<locked>>
90%
56840
89%
**77
100%
Lovex S070
<<locked>>
92%
57319
90%
**07
99%
Lovex S071
<<locked>>
97%
42351
66%
**38
97%
Norma 203B
<<locked>>
84%
57014
89%
**04
100%
Norma 204
<<locked>>
92%
57334
90%
**40
98%
Norma MRP
<<locked>>
97%
53679
84%
**79
99%
Norma URP
<<locked>>
92%
57043
89%
**40
100%
Ramshot Big Game
<<locked>>
83%
56971
89%
**14
100%
Ramshot Hunter 👍
<<locked>>
93%
56942
89%
**56
100%
Ramshot Magnum
<<locked>>
97%
49197
77%
**38
97%
ReloadSwiss RS 14
<<locked>>
96%
35259
55%
**55
100%
ReloadSwiss RS 50
<<locked>>
85%
56681
89%
**71
99%
ReloadSwiss RS 52
<<locked>>
84%
57261
90%
**10
100%
ReloadSwiss RS 60
<<locked>>
89%
57305
90%
**19
100%
ReloadSwiss RS 62 👍
<<locked>>
91%
57348
90%
**56
100%
ReloadSwiss RS 70 👍
<<locked>>
92%
56768
89%
**05
100%
ReloadSwiss RS 76
<<locked>>
97%
40712
64%
**40
95%
Rottweil R 903
<<locked>>
87%
56884
89%
**84
100%
Rottweil R 904
<<locked>>
96%
57174
90%
**00
97%
Rottweil R 905
<<locked>>
97%
56115
88%
**40
98%
Rottweil R 907
<<locked>>
89%
56797
89%
**81
99%
SNPE Vectan SP 11
<<locked>>
86%
56739
89%
**10
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
57305
90%
**56
100%
SNPE Vectan Tubal 7000
<<locked>>
90%
57116
90%
**38
99%
Shooters World Long Rifle
<<locked>>
90%
56840
89%
**77
100%
Shooters World Precision
<<locked>>
84%
57174
90%
**58
100%
Somchem S355
<<locked>>
87%
56652
89%
**71
100%
Somchem S361
<<locked>>
95%
56884
89%
**58
96%
Somchem S365
<<locked>>
94%
57159
90%
**53
100%
Somchem S385
<<locked>>
97%
57014
89%
**20
99%
Vihtavuori N133
<<locked>>
83%
57290
90%
**46
100%
Vihtavuori N135
<<locked>>
88%
56884
89%
**92
100%
Vihtavuori N150
<<locked>>
92%
57421
90%
**45
100%
Vihtavuori N160
<<locked>>
89%
57000
89%
**91
100%
Vihtavuori N165
<<locked>>
97%
47268
74%
**30
96%
Vihtavuori N540
<<locked>>
83%
57406
90%
**41
100%
Vihtavuori N550
<<locked>>
89%
57232
90%
**40
100%
Vihtavuori N555
<<locked>>
97%
53708
84%
**10
100%
Vihtavuori N560
<<locked>>
97%
51097
80%
**17
95%
[Vihtavuori N565]*
<<locked>>
97%
42801
67%
**23
93%
Winchester 6.5 StaBALL
<<locked>>
91%
57406
90%
**77
100%
Winchester 760
<<locked>>
87%
56985
89%
**53
99%
Winchester StaBALL HD
<<locked>>
97%
42859
67%
**71
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
49037
77%
**36
100%
[ADI AR 2209]*
<<locked>>
81%
34098
53%
**64
90%
[ADI AR 2213]*
<<locked>>
88%
38406
60%
**89
90%
Accurate 2700
<<locked>>
81%
47442
74%
**58
97%
[Accurate 3100]*
<<locked>>
81%
29457
46%
**23
92%
Accurate 4064
<<locked>>
81%
52040
82%
**69
100%
Accurate 4350
<<locked>>
81%
40118
63%
**22
98%
[Accurate MAGPRO]*
<<locked>>
93%
42772
67%
**17
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
49792
78%
**66
100%
Alliant Reloder-15
<<locked>>
81%
53084
83%
**41
100%
Alliant Reloder-16
<<locked>>
81%
38972
61%
**38
98%
Alliant Reloder-17
<<locked>>
81%
44367
70%
**69
100%
[Alliant Reloder-19]*
<<locked>>
81%
33852
53%
**64
90%
[Alliant Reloder-22]*
<<locked>>
84%
33214
52%
**84
90%
Alliant Reloder-23
<<locked>>
81%
28485
45%
**52
96%
[Alliant Reloder-25]*
<<locked>>
84%
27688
43%
**20
90%
[Alliant Reloder-26]*
<<locked>>
81%
30647
48%
**71
94%
Hodgdon CFE223
<<locked>>
81%
52562
82%
**68
100%
Hodgdon H380
<<locked>>
81%
50502
79%
**86
99%
Hodgdon H414
<<locked>>
81%
45774
72%
**43
97%
[Hodgdon H4350]*
<<locked>>
81%
37405
59%
**00
94%
[Hodgdon H4831]*
<<locked>>
91%
38972
61%
**66
90%
[Hodgdon H4831 SC]*
<<locked>>
87%
39233
61%
**69
90%
Hodgdon Hybrid 100V
<<locked>>
81%
36463
57%
**20
99%
Hodgdon LVR
<<locked>>
81%
42946
67%
**81
98%
Hodgdon Superperformance
<<locked>>
81%
41147
64%
**74
95%
Hodgdon VARGET
<<locked>>
81%
48733
76%
**33
100%
Hodgdon TrailBoss
<<locked>>
81%
27891
44%
**59
100%
IMR 4064
<<locked>>
81%
48153
75%
**17
100%
IMR 4166 Enduron
<<locked>>
81%
47050
74%
**84
97%
IMR 4350
<<locked>>
81%
39624
62%
**53
95%
IMR 4451 Enduron
<<locked>>
81%
45513
71%
**71
97%
IMR 4831
<<locked>>
81%
34693
54%
**71
97%
[IMR 4955 Enduron]*
<<locked>>
86%
38406
60%
**17
90%
[IMR 7828 SSC]*
<<locked>>
87%
38116
60%
**02
90%
Lovex S062
<<locked>>
81%
51822
81%
**76
100%
Lovex S065
<<locked>>
81%
42772
67%
**12
98%
Lovex S070
<<locked>>
81%
41075
64%
**95
96%
[Lovex S071]*
<<locked>>
83%
26934
42%
**44
90%
Norma 203B
<<locked>>
81%
52576
82%
**28
100%
[Norma 204]*
<<locked>>
81%
39015
61%
**79
93%
[Norma MRP]*
<<locked>>
81%
30966
49%
**38
90%
Norma URP
<<locked>>
81%
39726
62%
**15
98%
Ramshot Big Game
<<locked>>
81%
53171
83%
**45
100%
Ramshot Hunter
<<locked>>
81%
38682
61%
**89
96%
[Ramshot Magnum]*
<<locked>>
86%
32198
50%
**35
90%
ReloadSwiss RS 14
<<locked>>
81%
28210
44%
**95
100%
ReloadSwiss RS 50
<<locked>>
81%
50502
79%
**72
99%
ReloadSwiss RS 52
<<locked>>
81%
52533
82%
**35
100%
ReloadSwiss RS 60
<<locked>>
81%
42728
67%
**53
100%
ReloadSwiss RS 62
<<locked>>
81%
39958
63%
**31
98%
ReloadSwiss RS 70
<<locked>>
81%
38624
61%
**41
97%
[ReloadSwiss RS 76]*
<<locked>>
91%
32677
51%
**97
90%
Rottweil R 903
<<locked>>
81%
47384
74%
**17
100%
[Rottweil R 904]*
<<locked>>
82%
36361
57%
**80
90%
[Rottweil R 905]*
<<locked>>
81%
32924
52%
**44
90%
Rottweil R 907
<<locked>>
81%
43990
69%
**38
96%
SNPE Vectan SP 11
<<locked>>
81%
48573
76%
**72
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48254
76%
**15
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
42061
66%
**59
96%
Shooters World Long Rifle
<<locked>>
81%
42772
67%
**12
98%
Shooters World Precision
<<locked>>
81%
51822
81%
**76
100%
Somchem S355
<<locked>>
81%
47340
74%
**17
100%
[Somchem S361]*
<<locked>>
83%
38638
61%
**07
90%
Somchem S365
<<locked>>
81%
36216
57%
**69
100%
[Somchem S385]*
<<locked>>
81%
33475
52%
**21
92%
Vihtavuori N133
<<locked>>
81%
53867
84%
**00
100%
Vihtavuori N135
<<locked>>
81%
46108
72%
**28
100%
Vihtavuori N150
<<locked>>
81%
40596
64%
**56
100%
Vihtavuori N160
<<locked>>
81%
43004
67%
**44
99%
[Vihtavuori N165]*
<<locked>>
85%
31792
50%
**75
90%
Vihtavuori N540
<<locked>>
81%
53403
84%
**82
100%
Vihtavuori N550
<<locked>>
81%
43395
68%
**84
99%
Vihtavuori N555
<<locked>>
81%
31502
49%
**38
96%
[Vihtavuori N560]*
<<locked>>
89%
39015
61%
**41
90%
[Vihtavuori N565]*
<<locked>>
93%
37347
59%
**92
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40422
63%
**79
100%
Winchester 760
<<locked>>
81%
45774
72%
**43
97%
[Winchester StaBALL HD]*
<<locked>>
81%
25222
40%
**03
93%

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.

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