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Load data for .25-06 Rem. + .257 | 120gr | Sierra HPBT GameKing

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Recommended Powder(s): Alliant Reloder-26, IMR 4831, Norma 204, Ramshot Hunter, Vihtavuori N555

.25-06 Rem. + .257 | 120gr | Sierra HPBT GameKing

Load Specifications

Bullet:
.257 | 120gr | Sierra HPBT GameKing
Manufacturer SKU:
1650
Bullet Weight:
120gr | 7.8g
Bullet Diameter:
0.257" | 6.53mm
Bullet Length:
1.170" | 29.7mm
Caliber:
.25-06 Rem.
Case Length (l3):
2.489" | 63.2mm
Cartridge Length (C.O.L.):
3.201" | 81.3mm
Seated Depth:
0.458" | 11.6mm
Shank Seated Depth:
0.313" | 7.9mm
Case Capacity:
65.8 Grains of Water | 4.27 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
65267 psi | 4500 bar
LID:
LID_B5799_C208
Recommended Twist Rate:
1:10 - 1:8

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 150 loads in caliber .25-06 Rem. with .257 | 120gr | Sierra HPBT GameKing bullet and 75 powders such as Alliant Reloder-26, IMR 4831, Norma 204, Ramshot Hunter, Vihtavuori N555. 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".

    • A load must fulfill certain criteria to be listed in the default view below - see here.

    • Our load data might deviate from other sources - see the most common reasons here

    • All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.

    • You can set your specifications in the "Personalized Load Calculator".

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 10.5 fps

  • .

    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>>
85%
58305
89%
**13
100%
ADI AR 2209
<<locked>>
96%
58305
89%
**05
99%
ADI AR 2213
<<locked>>
96%
53867
83%
**72
97%
[ADI AR 2217]*
<<locked>>
97%
39624
61%
**74
93%
ADI AR 2225
<<locked>>
97%
35592
55%
**28
95%
Accurate 2700
<<locked>>
86%
58160
89%
**74
99%
Accurate 3100
<<locked>>
97%
54157
83%
**87
100%
Accurate 4350
<<locked>>
90%
58378
89%
**72
100%
Accurate MAGPRO
<<locked>>
97%
53359
82%
**69
95%
Alliant Reloder- TS 15.5
<<locked>>
84%
58407
89%
**23
100%
Alliant Reloder-16
<<locked>>
92%
58726
90%
**28
100%
Alliant Reloder-17
<<locked>>
87%
58436
90%
**18
100%
Alliant Reloder-19
<<locked>>
96%
57798
89%
**99
99%
Alliant Reloder-22
<<locked>>
96%
53490
82%
**69
98%
Alliant Reloder-23
<<locked>>
97%
51474
79%
**07
100%
Alliant Reloder-25
<<locked>>
97%
44309
68%
**35
99%
Alliant Reloder-26 👍
<<locked>>
96%
58726
90%
**00
100%
[Hodgdon H1000]*
<<locked>>
97%
39624
61%
**74
93%
Hodgdon H380
<<locked>>
84%
58291
89%
**40
100%
Hodgdon H414
<<locked>>
86%
57914
89%
**89
100%
Hodgdon H4350
<<locked>>
93%
58508
90%
**43
99%
Hodgdon H4831
<<locked>>
97%
50589
78%
**61
96%
Hodgdon H4831 SC
<<locked>>
96%
56710
87%
**56
97%
Hodgdon Hybrid 100V
<<locked>>
94%
58668
90%
**40
100%
Hodgdon LVR
<<locked>>
88%
57769
89%
**69
100%
Hodgdon Retumbo
<<locked>>
97%
35592
55%
**28
95%
Hodgdon Superperformance
<<locked>>
88%
58102
89%
**18
100%
Hodgdon VARGET
<<locked>>
86%
58711
90%
**17
100%
Hodgdon TrailBoss
<<locked>>
96%
34679
53%
**95
100%
IMR 4064
<<locked>>
86%
58175
89%
**04
100%
IMR 4166 Enduron
<<locked>>
86%
57798
89%
**04
100%
IMR 4350
<<locked>>
92%
58450
90%
**49
100%
IMR 4451 Enduron
<<locked>>
87%
57827
89%
**20
100%
IMR 4831 👍
<<locked>>
95%
58740
90%
**66
100%
IMR 4955 Enduron
<<locked>>
97%
55419
85%
**04
97%
IMR 7828 SSC
<<locked>>
97%
55782
85%
**12
98%
Lovex S062
<<locked>>
83%
58726
90%
**00
100%
Lovex S065
<<locked>>
89%
58639
90%
**23
100%
Lovex S070
<<locked>>
90%
58450
90%
**49
100%
Lovex S071
<<locked>>
97%
45629
70%
**53
99%
Norma 204 👍
<<locked>>
91%
57609
88%
**72
99%
Norma MRP
<<locked>>
97%
57957
89%
**68
100%
Norma URP
<<locked>>
91%
58639
90%
**82
100%
Ramshot Hunter 👍
<<locked>>
91%
57885
89%
**89
100%
Ramshot Magnum
<<locked>>
97%
53084
81%
**40
99%
ReloadSwiss RS 14
<<locked>>
95%
35317
54%
**37
100%
ReloadSwiss RS 50
<<locked>>
84%
57856
89%
**23
100%
ReloadSwiss RS 60
<<locked>>
88%
58537
90%
**45
100%
ReloadSwiss RS 62
<<locked>>
90%
57740
88%
**82
100%
ReloadSwiss RS 70
<<locked>>
90%
57653
88%
**35
100%
ReloadSwiss RS 76
<<locked>>
97%
42960
66%
**51
98%
Rottweil R 903
<<locked>>
85%
57682
88%
**07
100%
Rottweil R 904
<<locked>>
95%
58682
90%
**59
98%
Rottweil R 905
<<locked>>
96%
58044
89%
**02
99%
Rottweil R 907
<<locked>>
88%
58305
89%
**23
99%
SNPE Vectan SP 11
<<locked>>
85%
58131
89%
**56
100%
SNPE Vectan Tubal 5000
<<locked>>
86%
58697
90%
**95
100%
SNPE Vectan Tubal 7000
<<locked>>
89%
58262
89%
**74
100%
Shooters World Long Rifle
<<locked>>
89%
58639
90%
**23
100%
Shooters World Precision
<<locked>>
83%
58726
90%
**00
100%
Somchem S355
<<locked>>
86%
58523
90%
**23
100%
Somchem S361
<<locked>>
94%
58189
89%
**10
97%
Somchem S365
<<locked>>
93%
58015
89%
**79
100%
Somchem S385
<<locked>>
96%
58349
89%
**63
99%
Vihtavuori N135
<<locked>>
87%
58276
89%
**22
100%
Vihtavuori N150
<<locked>>
91%
58450
90%
**71
100%
Vihtavuori N160
<<locked>>
88%
57856
89%
**33
100%
Vihtavuori N165
<<locked>>
97%
50067
77%
**22
98%
Vihtavuori N550
<<locked>>
88%
58378
89%
**76
100%
Vihtavuori N555 👍
<<locked>>
97%
57493
88%
**89
100%
Vihtavuori N560
<<locked>>
97%
54433
83%
**02
97%
Vihtavuori N565
<<locked>>
97%
45977
70%
**31
95%
Winchester 6.5 StaBALL
<<locked>>
90%
58363
89%
**07
100%
Winchester 760
<<locked>>
86%
57914
89%
**89
100%
Winchester StaBALL HD
<<locked>>
97%
46847
72%
**66
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
51459
79%
**12
100%
[ADI AR 2209]*
<<locked>>
81%
35926
55%
**72
93%
[ADI AR 2213]*
<<locked>>
83%
34635
53%
**52
90%
[ADI AR 2217]*
<<locked>>
93%
34882
53%
**52
90%
[ADI AR 2225]*
<<locked>>
90%
28935
44%
**31
90%
Accurate 2700
<<locked>>
81%
49588
76%
**46
98%
Accurate 3100
<<locked>>
81%
31821
49%
**51
95%
Accurate 4350
<<locked>>
81%
43076
66%
**23
99%
[Accurate MAGPRO]*
<<locked>>
88%
38783
59%
**84
90%
Alliant Reloder- TS 15.5
<<locked>>
81%
52460
80%
**38
100%
Alliant Reloder-16
<<locked>>
81%
41176
63%
**30
99%
Alliant Reloder-17
<<locked>>
81%
47384
73%
**51
100%
[Alliant Reloder-19]*
<<locked>>
81%
36071
55%
**75
93%
[Alliant Reloder-22]*
<<locked>>
81%
31705
49%
**00
91%
Alliant Reloder-23
<<locked>>
81%
30400
47%
**77
98%
[Alliant Reloder-25]*
<<locked>>
81%
26672
41%
**65
92%
Alliant Reloder-26
<<locked>>
81%
32837
50%
**95
97%
[Hodgdon H1000]*
<<locked>>
93%
34882
53%
**52
90%
Hodgdon H380
<<locked>>
81%
53461
82%
**61
100%
Hodgdon H414
<<locked>>
81%
48443
74%
**35
99%
Hodgdon H4350
<<locked>>
81%
39523
61%
**02
96%
[Hodgdon H4831]*
<<locked>>
86%
35621
55%
**46
90%
[Hodgdon H4831 SC]*
<<locked>>
83%
35621
55%
**46
90%
Hodgdon Hybrid 100V
<<locked>>
81%
38711
59%
**12
100%
Hodgdon LVR
<<locked>>
81%
45498
70%
**66
99%
[Hodgdon Retumbo]*
<<locked>>
90%
28935
44%
**31
90%
Hodgdon Superperformance
<<locked>>
81%
43729
67%
**79
98%
Hodgdon VARGET
<<locked>>
81%
51082
78%
**05
100%
Hodgdon TrailBoss
<<locked>>
81%
27862
43%
**50
100%
IMR 4064
<<locked>>
81%
50444
77%
**82
100%
IMR 4166 Enduron
<<locked>>
81%
49313
76%
**56
99%
IMR 4350
<<locked>>
81%
41655
64%
**54
97%
IMR 4451 Enduron
<<locked>>
81%
47703
73%
**53
98%
IMR 4831
<<locked>>
81%
36985
57%
**79
98%
[IMR 4955 Enduron]*
<<locked>>
81%
34330
53%
**74
90%
[IMR 7828 SSC]*
<<locked>>
82%
34389
53%
**62
90%
Lovex S062
<<locked>>
81%
54723
84%
**38
100%
Lovex S065
<<locked>>
81%
45063
69%
**03
99%
Lovex S070
<<locked>>
81%
43294
66%
**87
98%
[Lovex S071]*
<<locked>>
81%
27195
42%
**23
92%
Norma 204
<<locked>>
81%
41379
63%
**84
95%
[Norma MRP]*
<<locked>>
81%
32866
50%
**59
94%
Norma URP
<<locked>>
81%
42018
64%
**07
99%
Ramshot Hunter
<<locked>>
81%
41133
63%
**94
98%
[Ramshot Magnum]*
<<locked>>
81%
29341
45%
**18
90%
ReloadSwiss RS 14
<<locked>>
81%
28500
44%
**90
100%
ReloadSwiss RS 50
<<locked>>
81%
53084
81%
**51
100%
ReloadSwiss RS 60
<<locked>>
81%
45672
70%
**38
100%
ReloadSwiss RS 62
<<locked>>
81%
42888
66%
**43
99%
ReloadSwiss RS 70
<<locked>>
81%
41292
63%
**53
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
29356
45%
**67
90%
Rottweil R 903
<<locked>>
81%
49893
76%
**99
100%
[Rottweil R 904]*
<<locked>>
81%
37333
57%
**56
92%
[Rottweil R 905]*
<<locked>>
81%
34882
53%
**49
93%
Rottweil R 907
<<locked>>
81%
46311
71%
**26
98%
SNPE Vectan SP 11
<<locked>>
81%
51329
79%
**51
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50894
78%
**87
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
44237
68%
**48
98%
Shooters World Long Rifle
<<locked>>
81%
45063
69%
**03
99%
Shooters World Precision
<<locked>>
81%
54723
84%
**38
100%
Somchem S355
<<locked>>
81%
49922
76%
**92
100%
[Somchem S361]*
<<locked>>
81%
38203
59%
**49
92%
Somchem S365
<<locked>>
81%
38812
59%
**67
100%
[Somchem S385]*
<<locked>>
81%
35665
55%
**39
94%
Vihtavuori N135
<<locked>>
81%
48472
74%
**90
100%
Vihtavuori N150
<<locked>>
81%
42917
66%
**41
100%
Vihtavuori N160
<<locked>>
81%
45803
70%
**43
100%
[Vihtavuori N165]*
<<locked>>
81%
29718
46%
**82
91%
Vihtavuori N550
<<locked>>
81%
46180
71%
**85
100%
Vihtavuori N555
<<locked>>
81%
34098
52%
**59
98%
[Vihtavuori N560]*
<<locked>>
84%
34838
53%
**95
90%
[Vihtavuori N565]*
<<locked>>
88%
34055
52%
**62
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42946
66%
**74
100%
Winchester 760
<<locked>>
81%
48443
74%
**35
99%
Winchester StaBALL HD
<<locked>>
81%
24729
38%
**61
97%

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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