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Load data for 7.5 x 55 SWISS + .308 | 205gr | Sierra HPBT Gameking

Recommended Powder(s): Accurate 4350, Alliant Reloder-16, Norma URP, ReloadSwiss RS 62, Somchem S365

7.5 x 55 SWISS + .308 | 205gr | Sierra HPBT Gameking

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 205gr | Sierra HPBT Gameking
Manufacturer SKU:
2236
Bullet Weight:
205gr | 13.3g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.290" | 32.8mm
Caliber:
7.5 x 55 SWISS load data
Case Length (l3):
2.188" | 55.6mm
Cartridge Length (C.O.L.):
3.013" | 76.5mm
Seated Depth:
0.465" | 11.8mm
Shank Seated Depth:
0.307" | 7.8mm
Case Capacity:
65.0 Grains of Water | 4.22 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
55114 psi | 3800 bar
LID:
LID_B10978_C1112
Last updated:
2025-11-05
Recommended Twist Rate:
1:13 - 1:11

Load data for 146 loads in caliber 7.5 x 55 SWISS with .308 | 205gr | Sierra HPBT Gameking bullet and 73 powders such as Accurate 4350, Alliant Reloder-16, Norma URP, ReloadSwiss RS 62, Somchem S365. 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%
48791
89%
**92
100%
ADI AR 2209
<<locked>>
96%
45469
82%
**15
95%
Accurate 2700
<<locked>>
88%
49153
89%
**59
97%
Accurate 3100
<<locked>>
97%
38595
70%
**90
96%
Accurate 4064
<<locked>>
85%
48530
88%
**82
100%
Accurate 4350 👍
<<locked>>
94%
48892
89%
**67
100%
Alliant Reloder- TS 15.5
<<locked>>
86%
48820
89%
**08
100%
Alliant Reloder-15
<<locked>>
84%
49023
89%
**28
100%
Alliant Reloder-16 👍
<<locked>>
95%
49008
89%
**00
100%
Alliant Reloder-17
<<locked>>
91%
49037
89%
**16
100%
Alliant Reloder-19
<<locked>>
97%
45223
82%
**15
95%
[Alliant Reloder-22]*
<<locked>>
97%
39233
71%
**49
93%
Alliant Reloder-23
<<locked>>
97%
36941
67%
**16
99%
[Alliant Reloder-25]*
<<locked>>
96%
32503
59%
**15
94%
Alliant Reloder-26
<<locked>>
97%
41263
75%
**64
99%
Hodgdon CFE223
<<locked>>
85%
49168
89%
**67
100%
Hodgdon H380
<<locked>>
86%
49226
89%
**28
99%
Hodgdon H414
<<locked>>
89%
48718
88%
**70
98%
Hodgdon H4350
<<locked>>
96%
48994
89%
**15
97%
[Hodgdon H4831 SC]*
<<locked>>
97%
42786
78%
**46
92%
Hodgdon Hybrid 100V
<<locked>>
97%
48240
88%
**34
100%
Hodgdon LVR
<<locked>>
92%
48747
88%
**61
99%
Hodgdon Superperformance
<<locked>>
93%
49559
90%
**13
98%
Hodgdon VARGET
<<locked>>
87%
49139
89%
**95
100%
IMR 3031
<<locked>>
83%
48617
88%
**85
100%
IMR 4064
<<locked>>
87%
48849
89%
**82
100%
IMR 4166 Enduron
<<locked>>
88%
48849
89%
**69
98%
IMR 4350
<<locked>>
94%
48805
89%
**18
97%
IMR 4451 Enduron
<<locked>>
89%
49313
89%
**02
98%
IMR 4831
<<locked>>
97%
45629
83%
**08
99%
IMR 4895
<<locked>>
84%
49400
90%
**41
100%
[IMR 4955 Enduron]*
<<locked>>
97%
43265
79%
**16
92%
Lovex S062
<<locked>>
85%
49371
90%
**92
100%
Lovex S065
<<locked>>
92%
49487
90%
**05
99%
Lovex S070
<<locked>>
93%
48805
89%
**21
98%
[Lovex S071]*
<<locked>>
97%
32039
58%
**62
94%
Norma 203B
<<locked>>
85%
49443
90%
**34
100%
Norma 204
<<locked>>
94%
48791
89%
**51
96%
Norma MRP
<<locked>>
97%
41191
75%
**21
96%
Norma URP 👍
<<locked>>
95%
49487
90%
**77
100%
Ramshot Big Game
<<locked>>
85%
48936
89%
**48
100%
Ramshot Hunter
<<locked>>
95%
49211
89%
**87
99%
[Ramshot Magnum]*
<<locked>>
97%
37594
68%
**93
93%
ReloadSwiss RS 50
<<locked>>
86%
49269
89%
**05
98%
ReloadSwiss RS 52
<<locked>>
86%
49414
90%
**54
100%
ReloadSwiss RS 60
<<locked>>
92%
49240
89%
**39
100%
ReloadSwiss RS 62 👍
<<locked>>
94%
49385
90%
**03
100%
ReloadSwiss RS 70
<<locked>>
95%
49472
90%
**33
99%
Rottweil R 902
<<locked>>
84%
49487
90%
**72
100%
Rottweil R 903
<<locked>>
89%
49240
89%
**25
100%
[Rottweil R 904]*
<<locked>>
96%
47152
86%
**95
94%
Rottweil R 905
<<locked>>
97%
44048
80%
**98
95%
Rottweil R 907
<<locked>>
91%
49429
90%
**02
97%
SNPE Vectan SP 11
<<locked>>
88%
49240
89%
**54
100%
SNPE Vectan Tubal 5000
<<locked>>
87%
49269
89%
**06
100%
SNPE Vectan Tubal 7000
<<locked>>
92%
48878
89%
**59
98%
Shooters World Long Rifle
<<locked>>
92%
49487
90%
**05
99%
Shooters World Precision
<<locked>>
85%
49371
90%
**92
100%
Somchem S355
<<locked>>
88%
49023
89%
**11
100%
[Somchem S361]*
<<locked>>
97%
49255
89%
**98
94%
Somchem S365 👍
<<locked>>
96%
47239
86%
**74
100%
Somchem S385
<<locked>>
97%
44150
80%
**82
96%
Vihtavuori N135
<<locked>>
89%
49124
89%
**46
100%
Vihtavuori N140
<<locked>>
84%
49313
89%
**52
100%
Vihtavuori N150
<<locked>>
94%
49342
90%
**88
100%
Vihtavuori N160
<<locked>>
91%
48921
89%
**31
100%
[Vihtavuori N165]*
<<locked>>
96%
36724
67%
**28
93%
Vihtavuori N540
<<locked>>
84%
49501
90%
**85
100%
Vihtavuori N550
<<locked>>
91%
49095
89%
**67
100%
Vihtavuori N555
<<locked>>
97%
40509
74%
**79
99%
Winchester 6.5 StaBALL
<<locked>>
93%
49037
89%
**18
100%
Winchester 760
<<locked>>
89%
48718
88%
**70
98%
Winchester StaBALL HD
<<locked>>
97%
33272
60%
**33
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2208
<<locked>>
81%
41191
75%
**64
99%
[ADI AR 2209]*
<<locked>>
86%
33214
60%
**65
90%
Accurate 2700
<<locked>>
81%
39392
71%
**95
95%
[Accurate 3100]*
<<locked>>
84%
24903
45%
**82
90%
Accurate 4064
<<locked>>
81%
42525
77%
**93
100%
Accurate 4350
<<locked>>
81%
31401
57%
**52
96%
Alliant Reloder- TS 15.5
<<locked>>
81%
41191
75%
**93
100%
Alliant Reloder-15
<<locked>>
81%
43918
80%
**49
99%
Alliant Reloder-16
<<locked>>
81%
31836
58%
**65
96%
Alliant Reloder-17
<<locked>>
81%
35592
65%
**83
99%
[Alliant Reloder-19]*
<<locked>>
86%
32547
59%
**59
90%
[Alliant Reloder-22]*
<<locked>>
91%
32706
59%
**05
90%
[Alliant Reloder-23]*
<<locked>>
81%
23076
42%
**46
93%
[Alliant Reloder-25]*
<<locked>>
90%
26890
49%
**57
90%
[Alliant Reloder-26]*
<<locked>>
82%
24976
45%
**51
90%
Hodgdon CFE223
<<locked>>
81%
42264
77%
**56
99%
Hodgdon H380
<<locked>>
81%
41495
75%
**97
98%
Hodgdon H414
<<locked>>
81%
36593
66%
**60
95%
[Hodgdon H4350]*
<<locked>>
81%
30835
56%
**77
91%
[Hodgdon H4831 SC]*
<<locked>>
94%
39015
71%
**70
90%
Hodgdon Hybrid 100V
<<locked>>
81%
29167
53%
**77
97%
Hodgdon LVR
<<locked>>
81%
34577
63%
**08
96%
[Hodgdon Superperformance]*
<<locked>>
81%
32982
60%
**95
92%
Hodgdon VARGET
<<locked>>
81%
40857
74%
**60
99%
IMR 3031
<<locked>>
81%
44773
81%
**33
100%
IMR 4064
<<locked>>
81%
40393
73%
**44
99%
IMR 4166 Enduron
<<locked>>
81%
40030
73%
**15
96%
[IMR 4350]*
<<locked>>
81%
32619
59%
**16
92%
IMR 4451 Enduron
<<locked>>
81%
38159
69%
**08
95%
[IMR 4831]*
<<locked>>
81%
27644
50%
**47
94%
IMR 4895
<<locked>>
81%
44947
82%
**72
100%
[IMR 4955 Enduron]*
<<locked>>
92%
37449
68%
**08
90%
Lovex S062
<<locked>>
81%
43453
79%
**00
100%
Lovex S065
<<locked>>
81%
35505
64%
**65
96%
[Lovex S070]*
<<locked>>
81%
33750
61%
**42
94%
[Lovex S071]*
<<locked>>
89%
25324
46%
**95
90%
Norma 203B
<<locked>>
81%
43279
79%
**36
100%
[Norma 204]*
<<locked>>
82%
32895
60%
**46
90%
[Norma MRP]*
<<locked>>
87%
29530
54%
**49
90%
Norma URP
<<locked>>
81%
31778
58%
**52
96%
Ramshot Big Game
<<locked>>
81%
43091
78%
**52
100%
[Ramshot Hunter]*
<<locked>>
81%
31111
56%
**36
93%
[Ramshot Magnum]*
<<locked>>
93%
32895
60%
**85
90%
ReloadSwiss RS 50
<<locked>>
81%
41858
76%
**83
97%
ReloadSwiss RS 52
<<locked>>
81%
42366
77%
**46
100%
ReloadSwiss RS 60
<<locked>>
81%
34577
63%
**70
99%
ReloadSwiss RS 62
<<locked>>
81%
31140
57%
**69
95%
[ReloadSwiss RS 70]*
<<locked>>
81%
31198
57%
**69
94%
Rottweil R 902
<<locked>>
81%
45150
82%
**10
100%
Rottweil R 903
<<locked>>
81%
38435
70%
**51
99%
[Rottweil R 904]*
<<locked>>
87%
35621
65%
**82
90%
[Rottweil R 905]*
<<locked>>
87%
31807
58%
**52
90%
[Rottweil R 907]*
<<locked>>
81%
36796
67%
**82
94%
SNPE Vectan SP 11
<<locked>>
81%
39421
72%
**97
99%
SNPE Vectan Tubal 5000
<<locked>>
81%
40596
74%
**82
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
34766
63%
**16
94%
Shooters World Long Rifle
<<locked>>
81%
35505
64%
**65
96%
Shooters World Precision
<<locked>>
81%
43453
79%
**00
100%
Somchem S355
<<locked>>
81%
39059
71%
**51
99%
[Somchem S361]*
<<locked>>
89%
38130
69%
**11
90%
Somchem S365
<<locked>>
81%
28601
52%
**16
98%
[Somchem S385]*
<<locked>>
84%
29167
53%
**73
90%
Vihtavuori N135
<<locked>>
81%
37985
69%
**78
100%
Vihtavuori N140
<<locked>>
81%
44875
81%
**90
100%
Vihtavuori N150
<<locked>>
81%
33576
61%
**23
99%
Vihtavuori N160
<<locked>>
81%
34635
63%
**85
97%
[Vihtavuori N165]*
<<locked>>
90%
30516
55%
**93
90%
Vihtavuori N540
<<locked>>
81%
44309
80%
**06
100%
Vihtavuori N550
<<locked>>
81%
34940
63%
**21
97%
[Vihtavuori N555]*
<<locked>>
81%
24453
44%
**14
93%
Winchester 6.5 StaBALL
<<locked>>
81%
32837
60%
**39
98%
Winchester 760
<<locked>>
81%
36593
66%
**60
95%
[Winchester StaBALL HD]*
<<locked>>
83%
21698
39%
**46
90%

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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