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Load data for .257 Weath. Mag. + .257 | 100gr | Fox Classic Hunter

Recommended Powder(s): Alliant Reloder-26, Norma MRP, Somchem S385, Vihtavuori N555, Winchester StaBALL HD

.257 Weath. Mag. + .257 | 100gr | Fox Classic Hunter

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.257 | 100gr | Fox Classic Hunter
Manufacturer SKU:
.25 (0.257) - 100 gr
Bullet Weight:
100gr | 6.5g
Bullet Diameter:
0.257" | 6.53mm
Bullet Length:
1.189" | 30.2mm
Caliber:
.257 Weath. Mag. load data
Case Length (l3):
2.549" | 64.7mm
Cartridge Length (C.O.L.):
3.122" | 79.3mm
Seated Depth:
0.616" | 15.6mm
Shank Seated Depth:
0.616" | 15.6mm
Case Capacity:
84.0 Grains of Water | 5.45 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B7106_C247
Last updated:
2025-01-01

Load data for 126 loads in caliber .257 Weath. Mag. with .257 | 100gr | Fox Classic Hunter bullet and 63 powders such as Alliant Reloder-26, Norma MRP, Somchem S385, Vihtavuori N555, Winchester StaBALL HD. 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>>
92%
57377
90%
**50
99%
ADI AR 2213
<<locked>>
95%
56826
89%
**79
98%
ADI AR 2217
<<locked>>
97%
44570
70%
**10
95%
ADI AR 2225
<<locked>>
97%
39523
62%
**31
96%
Accurate 3100
<<locked>>
95%
57116
90%
**78
100%
Accurate 4350
<<locked>>
86%
56840
89%
**07
100%
Accurate MAGPRO
<<locked>>
95%
57101
89%
**76
96%
Alliant Reloder-16
<<locked>>
88%
56913
89%
**60
100%
Alliant Reloder-17
<<locked>>
83%
57319
90%
**63
100%
Alliant Reloder-19
<<locked>>
92%
57421
90%
**50
99%
Alliant Reloder-22
<<locked>>
95%
56840
89%
**69
99%
Alliant Reloder-23
<<locked>>
96%
56681
89%
**30
100%
Alliant Reloder-25
<<locked>>
97%
50198
79%
**74
100%
Alliant Reloder-26 👍
<<locked>>
92%
57174
90%
**12
100%
Hodgdon H1000
<<locked>>
97%
44570
70%
**10
95%
Hodgdon H4350
<<locked>>
90%
57116
90%
**91
99%
Hodgdon H4831
<<locked>>
97%
55912
88%
**87
97%
Hodgdon H4831 SC
<<locked>>
94%
56956
89%
**14
97%
Hodgdon Hybrid 100V
<<locked>>
90%
56652
89%
**58
100%
Hodgdon LVR
<<locked>>
85%
57305
90%
**27
100%
Hodgdon Retumbo
<<locked>>
97%
39523
62%
**31
96%
Hodgdon Superperformance
<<locked>>
85%
56710
89%
**43
99%
Hodgdon TrailBoss
<<locked>>
97%
35491
56%
**00
100%
IMR 4166 Enduron
<<locked>>
83%
56855
89%
**51
99%
IMR 4350
<<locked>>
88%
56753
89%
**71
99%
IMR 4451 Enduron
<<locked>>
84%
56695
89%
**61
99%
IMR 4831
<<locked>>
92%
57261
90%
**97
100%
IMR 4955 Enduron
<<locked>>
94%
56956
89%
**71
97%
IMR 7828 SSC
<<locked>>
94%
56681
89%
**83
98%
Lovex S065
<<locked>>
86%
56811
89%
**61
100%
Lovex S070
<<locked>>
87%
57377
90%
**84
100%
Lovex S071
<<locked>>
97%
50792
80%
**63
99%
Norma 204
<<locked>>
88%
57377
90%
**20
99%
[Norma 217]*
<<locked>>
97%
35404
55%
**49
94%
Norma MRP 👍
<<locked>>
93%
57217
90%
**09
100%
Norma URP
<<locked>>
87%
56753
89%
**07
100%
Ramshot Hunter
<<locked>>
88%
56782
89%
**23
100%
Ramshot Magnum
<<locked>>
95%
56710
89%
**33
99%
ReloadSwiss RS 14
<<locked>>
96%
35969
56%
**42
100%
ReloadSwiss RS 60
<<locked>>
84%
57203
90%
**79
100%
ReloadSwiss RS 62
<<locked>>
86%
56681
89%
**14
100%
ReloadSwiss RS 70
<<locked>>
87%
57043
89%
**76
100%
ReloadSwiss RS 76
<<locked>>
97%
49574
78%
**14
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
44846
70%
**66
93%
Rottweil R 904
<<locked>>
91%
56985
89%
**84
98%
Rottweil R 905
<<locked>>
92%
56623
89%
**30
99%
Rottweil R 907
<<locked>>
85%
57174
90%
**64
99%
SNPE Vectan Tubal 7000
<<locked>>
86%
56985
89%
**12
100%
Shooters World Long Rifle
<<locked>>
86%
56811
89%
**61
100%
Somchem S361
<<locked>>
90%
57377
90%
**58
97%
Somchem S365
<<locked>>
89%
56695
89%
**04
100%
Somchem S385 👍
<<locked>>
92%
57348
90%
**97
99%
Vihtavuori N135
<<locked>>
84%
57276
90%
**69
100%
Vihtavuori N150
<<locked>>
88%
57246
90%
**19
100%
Vihtavuori N160
<<locked>>
85%
56826
89%
**64
100%
Vihtavuori N165
<<locked>>
97%
56260
88%
**58
99%
Vihtavuori N550
<<locked>>
85%
57377
90%
**17
100%
Vihtavuori N555 👍
<<locked>>
93%
56666
89%
**23
100%
Vihtavuori N560
<<locked>>
95%
56768
89%
**96
97%
Vihtavuori N565
<<locked>>
97%
52663
83%
**78
97%
[Vihtavuori N568]*
<<locked>>
97%
45948
72%
**82
93%
Winchester 6.5 StaBALL
<<locked>>
86%
56753
89%
**25
100%
Winchester StaBALL HD 👍
<<locked>>
97%
55390
87%
**25
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2209]*
<<locked>>
81%
39334
62%
**72
94%
[ADI AR 2213]*
<<locked>>
82%
36129
57%
**94
90%
[ADI AR 2217]*
<<locked>>
90%
35607
56%
**67
90%
[ADI AR 2225]*
<<locked>>
88%
30124
47%
**36
90%
Accurate 3100
<<locked>>
81%
35085
55%
**12
95%
Accurate 4350
<<locked>>
81%
47137
74%
**33
100%
[Accurate MAGPRO]*
<<locked>>
85%
39784
62%
**12
90%
Alliant Reloder-16
<<locked>>
81%
45223
71%
**30
100%
Alliant Reloder-17
<<locked>>
81%
52388
82%
**74
100%
[Alliant Reloder-19]*
<<locked>>
81%
39291
62%
**56
94%
[Alliant Reloder-22]*
<<locked>>
81%
35041
55%
**74
92%
Alliant Reloder-23
<<locked>>
81%
33649
53%
**54
99%
[Alliant Reloder-25]*
<<locked>>
81%
29399
46%
**30
93%
Alliant Reloder-26
<<locked>>
81%
37144
58%
**09
98%
[Hodgdon H1000]*
<<locked>>
90%
35607
56%
**67
90%
Hodgdon H4350
<<locked>>
81%
42975
67%
**99
96%
[Hodgdon H4831]*
<<locked>>
84%
36187
57%
**61
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
36753
58%
**74
90%
Hodgdon Hybrid 100V
<<locked>>
81%
42511
67%
**09
100%
Hodgdon LVR
<<locked>>
81%
49487
78%
**76
100%
[Hodgdon Retumbo]*
<<locked>>
88%
30124
47%
**36
90%
Hodgdon Superperformance
<<locked>>
81%
48776
76%
**02
98%
Hodgdon TrailBoss
<<locked>>
81%
28181
44%
**23
100%
IMR 4166 Enduron
<<locked>>
81%
53011
83%
**86
99%
IMR 4350
<<locked>>
81%
45281
71%
**54
97%
IMR 4451 Enduron
<<locked>>
81%
51416
81%
**73
99%
IMR 4831
<<locked>>
81%
40799
64%
**76
99%
[IMR 4955 Enduron]*
<<locked>>
81%
37043
58%
**48
91%
[IMR 7828 SSC]*
<<locked>>
81%
35969
56%
**00
90%
Lovex S065
<<locked>>
81%
48675
76%
**04
99%
Lovex S070
<<locked>>
81%
47079
74%
**97
98%
[Lovex S071]*
<<locked>>
81%
30168
47%
**71
93%
Norma 204
<<locked>>
81%
45252
71%
**91
96%
[Norma 217]*
<<locked>>
92%
30545
48%
**92
90%
Norma MRP
<<locked>>
81%
36637
57%
**53
95%
Norma URP
<<locked>>
81%
46137
72%
**17
100%
Ramshot Hunter
<<locked>>
81%
45150
71%
**94
98%
[Ramshot Magnum]*
<<locked>>
81%
32532
51%
**99
92%
ReloadSwiss RS 14
<<locked>>
81%
28718
45%
**65
100%
ReloadSwiss RS 60
<<locked>>
81%
50633
79%
**64
100%
ReloadSwiss RS 62
<<locked>>
81%
47253
74%
**46
100%
ReloadSwiss RS 70
<<locked>>
81%
45411
71%
**56
99%
[ReloadSwiss RS 76]*
<<locked>>
84%
30676
48%
**85
90%
[ReloadSwiss RS 80]*
<<locked>>
93%
38406
60%
**12
90%
[Rottweil R 904]*
<<locked>>
81%
40741
64%
**59
93%
[Rottweil R 905]*
<<locked>>
81%
38812
61%
**56
94%
Rottweil R 907
<<locked>>
81%
50096
78%
**43
98%
SNPE Vectan Tubal 7000
<<locked>>
81%
47921
75%
**51
98%
Shooters World Long Rifle
<<locked>>
81%
48675
76%
**04
99%
[Somchem S361]*
<<locked>>
81%
41510
65%
**33
93%
Somchem S365
<<locked>>
81%
43018
67%
**64
100%
Somchem S385
<<locked>>
81%
39189
61%
**27
95%
Vihtavuori N135
<<locked>>
81%
52446
82%
**94
100%
Vihtavuori N150
<<locked>>
81%
46630
73%
**31
100%
Vihtavuori N160
<<locked>>
81%
49850
78%
**43
100%
[Vihtavuori N165]*
<<locked>>
81%
32837
51%
**46
92%
Vihtavuori N550
<<locked>>
81%
50256
79%
**86
100%
Vihtavuori N555
<<locked>>
81%
37826
59%
**40
98%
[Vihtavuori N560]*
<<locked>>
82%
36230
57%
**30
90%
[Vihtavuori N565]*
<<locked>>
86%
35476
56%
**87
90%
[Vihtavuori N568]*
<<locked>>
93%
40161
63%
**45
90%
Winchester 6.5 StaBALL
<<locked>>
81%
47079
74%
**64
100%
Winchester StaBALL HD
<<locked>>
81%
29182
46%
**41
98%

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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