top of page

Load data for 7 mm Backcountry + .284 | 160gr | Sierra GameKing

Recommended Powder(s): Hodgdon H414, Hodgdon H4350, Hodgdon Superformance, ReloadSwiss RS 70, Winchester 760

7 mm Backcountry + .284 | 160gr | Sierra GameKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 160gr | Sierra GameKing
Manufacturer SKU:
1925
Bullet Weight:
160gr | 10.4g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
<<locked>>
Caliber:
7 mm Backcountry load data
Case Length (l3):
2.417" | 61.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
73.0 Grains of Water | 4.74 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
79916 psi | 5510 bar
LID:
LID_B5845_C991
Last updated:
2026-07-13
Recommended Twist Rate:
1:11 - 1:9

Load data for 256 loads in caliber 7 mm Backcountry with .284 | 160gr | Sierra GameKing bullet and 128 powders such as Hodgdon H414, Hodgdon H4350, Hodgdon Superformance, ReloadSwiss RS 70, Winchester 760. 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".

  • No data yet

  • 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.

    .

    Loading_icon.gif

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 APS 450
<<locked>>
92%
71866
90%
**93
101%
ADI AR 2206H
<<locked>>
87%
71141
89%
**59
100%
ADI AR 2208
<<locked>>
93%
71272
89%
**46
100%
ADI AR 2209
<<locked>>
97%
57464
72%
**74
99%
ADI AR 2213
<<locked>>
97%
51953
65%
**18
97%
[ADI AR 2217]*
<<locked>>
97%
37826
47%
**13
92%
[ADI AR 2225]*
<<locked>>
97%
33518
42%
**70
94%
ADI Benchmark 8208
<<locked>>
86%
71518
89%
**17
100%
Accurate 2015
<<locked>>
85%
70779
89%
**12
100%
Accurate 2495
<<locked>>
89%
70822
89%
**41
100%
Accurate 2520
<<locked>>
84%
71910
90%
**10
100%
Accurate 2700
<<locked>>
90%
71460
89%
**33
100%
Accurate 3100
<<locked>>
97%
50517
63%
**23
100%
Accurate 4064
<<locked>>
91%
71170
89%
**97
100%
Accurate 4350
<<locked>>
97%
68951
86%
**79
100%
Accurate MAGPRO
<<locked>>
97%
52649
66%
**61
96%
Alliant AR-Comp
<<locked>>
85%
71794
90%
**44
100%
Alliant Power Pro 2000-MR
<<locked>>
88%
70938
89%
**71
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
71199
89%
**46
100%
Alliant Reloder-15
<<locked>>
90%
70996
89%
**72
100%
Alliant Reloder-16
<<locked>>
97%
64513
81%
**76
100%
Alliant Reloder-17
<<locked>>
94%
71692
90%
**58
100%
Alliant Reloder-19
<<locked>>
97%
56405
71%
**61
99%
Alliant Reloder-22
<<locked>>
97%
50966
64%
**12
98%
Alliant Reloder-23
<<locked>>
97%
48225
60%
**49
100%
Alliant Reloder-25
<<locked>>
97%
41829
52%
**77
99%
Alliant Reloder-26
<<locked>>
97%
54940
69%
**30
100%
Baschieri & Pellagri 107
<<locked>>
87%
71388
89%
**82
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
51155
64%
**23
93%
Bofors RP15
<<locked>>
97%
46688
58%
**33
97%
Bofors RP3
<<locked>>
91%
71562
90%
**56
100%
[Bofors RP30]*
<<locked>>
97%
37565
47%
**79
93%
Bofors RP5
<<locked>>
97%
50966
64%
**12
98%
Bofors RP7
<<locked>>
96%
71373
89%
**76
100%
Hodgdon BL-C2
<<locked>>
86%
70837
89%
**40
100%
Hodgdon Benchmark
<<locked>>
86%
71431
89%
**81
100%
[Hodgdon H1000]*
<<locked>>
97%
41437
52%
**02
94%
Hodgdon H380
<<locked>>
91%
71504
89%
**79
100%
Hodgdon H414 👍
<<locked>>
97%
71533
90%
**45
100%
Hodgdon H4350 👍
<<locked>>
95%
71040
89%
**09
100%
Hodgdon H4831
<<locked>>
97%
55347
69%
**22
97%
Hodgdon H4831 SC
<<locked>>
97%
54375
68%
**02
97%
Hodgdon H4895
<<locked>>
87%
71011
89%
**53
100%
Hodgdon Hybrid 100V
<<locked>>
97%
61308
77%
**48
100%
Hodgdon LEVERevolution
<<locked>>
88%
70866
89%
**79
100%
Hodgdon Retumbo
<<locked>>
97%
41147
51%
**00
96%
Hodgdon Superformance 👍
<<locked>>
96%
71663
90%
**77
100%
Hodgdon TrailBoss
<<locked>>
96%
34838
44%
**90
100%
Hodgdon VARGET
<<locked>>
89%
71098
89%
**40
100%
IMR 3031
<<locked>>
87%
71475
89%
**10
100%
IMR 4064
<<locked>>
91%
71649
90%
**40
100%
IMR 4166 Enduron
<<locked>>
90%
71866
90%
**53
100%
IMR 4350
<<locked>>
97%
65485
82%
**13
100%
IMR 4451 Enduron
<<locked>>
95%
70677
88%
**63
100%
IMR 4831
<<locked>>
97%
64513
81%
**17
100%
IMR 4895
<<locked>>
89%
71765
90%
**86
100%
IMR 4955 Enduron
<<locked>>
97%
56768
71%
**08
97%
IMR 7828 SSC
<<locked>>
97%
48878
61%
**76
96%
IMR 8208 XBR
<<locked>>
86%
71518
89%
**17
100%
Lovex D073.6
<<locked>>
87%
71330
89%
**07
100%
Lovex S060
<<locked>>
89%
71765
90%
**00
100%
Lovex S062
<<locked>>
91%
70837
89%
**17
100%
Lovex S065
<<locked>>
97%
70300
88%
**49
100%
Lovex S070
<<locked>>
97%
67849
85%
**49
100%
Lovex S071
<<locked>>
96%
42192
53%
**79
98%
Norma 201
<<locked>>
89%
71808
90%
**23
100%
Norma 202
<<locked>>
88%
70779
89%
**84
100%
Norma 203B
<<locked>>
90%
71272
89%
**66
100%
Norma 204
<<locked>>
97%
66950
84%
**72
100%
Norma MRP
<<locked>>
97%
53969
68%
**94
99%
Norma URP
<<locked>>
97%
66935
84%
**63
100%
Ramshot Big Game
<<locked>>
89%
70938
89%
**82
100%
Ramshot Grand
<<locked>>
97%
49081
61%
**92
97%
Ramshot Hunter
<<locked>>
97%
65369
82%
**69
100%
Ramshot Magnum
<<locked>>
97%
43787
55%
**67
97%
Ramshot TAC
<<locked>>
86%
71852
90%
**66
100%
Ramshot Wild Boar
<<locked>>
86%
70822
89%
**56
100%
Ramshot X-Terminator
<<locked>>
84%
70982
89%
**17
100%
ReloadSwiss RS 14
<<locked>>
96%
35331
44%
**26
100%
ReloadSwiss RS 50
<<locked>>
92%
71576
90%
**66
100%
ReloadSwiss RS 52
<<locked>>
87%
71257
89%
**22
100%
ReloadSwiss RS 60
<<locked>>
92%
71373
89%
**45
100%
ReloadSwiss RS 62
<<locked>>
97%
69589
87%
**12
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
68472
86%
**51
100%
ReloadSwiss RS 76
<<locked>>
97%
40683
51%
**90
97%
Rottweil R 901
<<locked>>
86%
71301
89%
**74
100%
Rottweil R 902
<<locked>>
90%
71069
89%
**04
100%
Rottweil R 903
<<locked>>
94%
71881
90%
**56
100%
Rottweil R 904
<<locked>>
97%
59379
74%
**44
98%
Rottweil R 905
<<locked>>
97%
56028
70%
**48
99%
Rottweil R 907
<<locked>>
96%
71373
89%
**76
100%
SNPE Vectan SP 11
<<locked>>
93%
71750
90%
**95
100%
SNPE Vectan SP 7
<<locked>>
86%
71069
89%
**46
100%
SNPE Vectan SP 9
<<locked>>
88%
71562
90%
**49
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
71098
89%
**18
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
71054
89%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
69966
88%
**07
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
55550
70%
**41
99%
Shooters World Long Rifle
<<locked>>
97%
70300
88%
**49
100%
Shooters World Match Rifle
<<locked>>
87%
71330
89%
**07
100%
Shooters World Precision
<<locked>>
91%
70837
89%
**17
100%
Shooters World SW4350
<<locked>>
97%
67849
85%
**49
100%
Somchem S321
<<locked>>
83%
71649
90%
**27
100%
Somchem S335
<<locked>>
89%
71866
90%
**28
100%
Somchem S341
<<locked>>
87%
71634
90%
**30
100%
Somchem S355
<<locked>>
94%
71243
89%
**46
100%
Somchem S361
<<locked>>
97%
61511
77%
**48
98%
Somchem S365
<<locked>>
97%
62410
78%
**17
100%
Somchem S385
<<locked>>
97%
57276
72%
**38
99%
Vihtavuori N130
<<locked>>
85%
71649
90%
**82
100%
Vihtavuori N133
<<locked>>
88%
71417
89%
**99
100%
Vihtavuori N135
<<locked>>
91%
71025
89%
**44
100%
Vihtavuori N140
<<locked>>
90%
71663
90%
**67
100%
Vihtavuori N150
<<locked>>
95%
70967
89%
**90
100%
Vihtavuori N160
<<locked>>
97%
69067
86%
**53
100%
Vihtavuori N165
<<locked>>
97%
48704
61%
**90
98%
Vihtavuori N530
<<locked>>
86%
71794
90%
**10
100%
Vihtavuori N540
<<locked>>
90%
70837
89%
**84
100%
Vihtavuori N550
<<locked>>
97%
68124
85%
**59
100%
Vihtavuori N555
<<locked>>
97%
53969
68%
**25
100%
Vihtavuori N560
<<locked>>
97%
54157
68%
**84
97%
[Vihtavuori N565]*
<<locked>>
97%
42917
54%
**67
94%
Winchester 6.5 StaBALL
<<locked>>
97%
70387
88%
**23
100%
Winchester 748
<<locked>>
85%
71388
89%
**40
100%
Winchester 760 👍
<<locked>>
97%
71533
90%
**45
100%
Winchester StaBALL HD
<<locked>>
97%
42511
53%
**92
100%
Winchester StaBALL Match
<<locked>>
88%
71054
89%
**49
100%
Winchester Supreme 780
<<locked>>
97%
53084
66%
**69
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59683
75%
**39
100%
ADI AR 2206H
<<locked>>
81%
58131
73%
**95
100%
ADI AR 2208
<<locked>>
81%
49603
62%
**57
100%
[ADI AR 2209]*
<<locked>>
81%
34476
43%
**28
92%
[ADI AR 2213]*
<<locked>>
85%
34389
43%
**41
90%
[ADI AR 2217]*
<<locked>>
94%
34795
44%
**41
90%
[ADI AR 2225]*
<<locked>>
92%
28790
36%
**26
90%
ADI Benchmark 8208
<<locked>>
81%
60278
75%
**89
100%
Accurate 2015
<<locked>>
81%
62410
78%
**20
100%
Accurate 2495
<<locked>>
81%
55564
70%
**64
100%
Accurate 2520
<<locked>>
81%
64614
81%
**31
100%
Accurate 2700
<<locked>>
81%
52982
66%
**84
99%
[Accurate 3100]*
<<locked>>
81%
29733
37%
**97
94%
Accurate 4064
<<locked>>
81%
52562
66%
**71
100%
Accurate 4350
<<locked>>
81%
40451
51%
**59
99%
[Accurate MAGPRO]*
<<locked>>
86%
36463
46%
**39
90%
Alliant AR-Comp
<<locked>>
81%
62961
79%
**49
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
55390
69%
**77
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
50111
63%
**80
100%
Alliant Reloder-15
<<locked>>
81%
53563
67%
**53
100%
Alliant Reloder-16
<<locked>>
81%
39291
49%
**72
99%
Alliant Reloder-17
<<locked>>
81%
44788
56%
**90
100%
[Alliant Reloder-19]*
<<locked>>
81%
34113
43%
**28
93%
[Alliant Reloder-22]*
<<locked>>
81%
30023
38%
**49
90%
Alliant Reloder-23
<<locked>>
81%
28819
36%
**33
98%
[Alliant Reloder-25]*
<<locked>>
81%
25541
32%
**31
91%
Alliant Reloder-26
<<locked>>
81%
30864
39%
**41
96%
Baschieri & Pellagri 107
<<locked>>
81%
58407
73%
**22
100%
[Baschieri & Pellagri 109]*
<<locked>>
92%
43656
55%
**75
90%
[Bofors RP15]*
<<locked>>
83%
30052
38%
**52
90%
Bofors RP3
<<locked>>
81%
50879
64%
**97
100%
[Bofors RP30]*
<<locked>>
91%
32039
40%
**34
90%
[Bofors RP5]*
<<locked>>
81%
30023
38%
**49
90%
Bofors RP7
<<locked>>
81%
44367
56%
**69
97%
Hodgdon BL-C2
<<locked>>
81%
60742
76%
**25
100%
Hodgdon Benchmark
<<locked>>
81%
61264
77%
**56
100%
[Hodgdon H1000]*
<<locked>>
90%
33359
42%
**11
90%
Hodgdon H380
<<locked>>
81%
50865
64%
**07
100%
Hodgdon H414
<<locked>>
81%
42627
53%
**15
98%
Hodgdon H4350
<<locked>>
81%
45527
57%
**31
97%
[Hodgdon H4831]*
<<locked>>
83%
34882
44%
**18
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
34882
44%
**18
90%
Hodgdon H4895
<<locked>>
81%
58798
74%
**05
100%
Hodgdon Hybrid 100V
<<locked>>
81%
36912
46%
**64
100%
Hodgdon LEVERevolution
<<locked>>
81%
55941
70%
**99
100%
[Hodgdon Retumbo]*
<<locked>>
88%
31372
39%
**31
90%
Hodgdon Superformance
<<locked>>
81%
41307
52%
**18
97%
Hodgdon TrailBoss
<<locked>>
81%
28007
35%
**52
100%
Hodgdon VARGET
<<locked>>
81%
56173
70%
**53
100%
IMR 3031
<<locked>>
81%
59625
75%
**76
100%
IMR 4064
<<locked>>
81%
52257
65%
**94
100%
IMR 4166 Enduron
<<locked>>
81%
54215
68%
**20
99%
IMR 4350
<<locked>>
81%
40045
50%
**10
96%
IMR 4451 Enduron
<<locked>>
81%
45658
57%
**02
98%
IMR 4831
<<locked>>
81%
38754
48%
**16
99%
IMR 4895
<<locked>>
81%
54882
69%
**72
100%
[IMR 4955 Enduron]*
<<locked>>
81%
34708
43%
**82
90%
[IMR 7828 SSC]*
<<locked>>
86%
34011
43%
**48
90%
IMR 8208 XBR
<<locked>>
81%
60278
75%
**89
100%
Lovex D073.6
<<locked>>
81%
58914
74%
**66
100%
Lovex S060
<<locked>>
81%
57014
71%
**20
100%
Lovex S062
<<locked>>
81%
52620
66%
**87
100%
Lovex S065
<<locked>>
81%
43178
54%
**49
99%
Lovex S070
<<locked>>
81%
41510
52%
**39
97%
[Lovex S071]*
<<locked>>
81%
25744
32%
**88
92%
Norma 201
<<locked>>
81%
56811
71%
**40
100%
Norma 202
<<locked>>
81%
57667
72%
**33
100%
Norma 203B
<<locked>>
81%
52779
66%
**36
100%
Norma 204
<<locked>>
81%
39479
49%
**33
95%
[Norma MRP]*
<<locked>>
81%
31038
39%
**08
93%
Norma URP
<<locked>>
81%
40205
50%
**52
99%
Ramshot Big Game
<<locked>>
81%
53476
67%
**59
100%
[Ramshot Grand]*
<<locked>>
86%
33765
42%
**51
90%
Ramshot Hunter
<<locked>>
81%
39044
49%
**43
97%
[Ramshot Magnum]*
<<locked>>
85%
29283
37%
**23
90%
Ramshot TAC
<<locked>>
81%
60771
76%
**28
100%
Ramshot Wild Boar
<<locked>>
81%
60727
76%
**35
100%
Ramshot X-Terminator
<<locked>>
81%
64774
81%
**44
100%
ReloadSwiss RS 14
<<locked>>
81%
28500
36%
**85
100%
ReloadSwiss RS 50
<<locked>>
81%
50879
64%
**87
99%
ReloadSwiss RS 52
<<locked>>
81%
58494
73%
**71
100%
ReloadSwiss RS 60
<<locked>>
81%
47427
59%
**43
100%
ReloadSwiss RS 62
<<locked>>
81%
40379
51%
**79
99%
ReloadSwiss RS 70
<<locked>>
81%
38870
49%
**89
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
29573
37%
**85
91%
Rottweil R 901
<<locked>>
81%
60988
76%
**53
100%
Rottweil R 902
<<locked>>
81%
54389
68%
**90
100%
Rottweil R 903
<<locked>>
81%
47776
60%
**41
100%
[Rottweil R 904]*
<<locked>>
81%
35795
45%
**15
92%
[Rottweil R 905]*
<<locked>>
81%
33228
42%
**11
92%
Rottweil R 907
<<locked>>
81%
44367
56%
**69
97%
SNPE Vectan SP 11
<<locked>>
81%
48979
61%
**97
100%
SNPE Vectan SP 7
<<locked>>
81%
59944
75%
**12
100%
SNPE Vectan SP 9
<<locked>>
81%
56739
71%
**72
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
57667
72%
**67
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48921
61%
**39
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
42337
53%
**97
97%
[SNPE Vectan Tubal 8000]*
<<locked>>
81%
32909
41%
**02
92%
Shooters World Long Rifle
<<locked>>
81%
43178
54%
**49
99%
Shooters World Match Rifle
<<locked>>
81%
58914
74%
**66
100%
Shooters World Precision
<<locked>>
81%
52620
66%
**87
100%
Shooters World SW4350
<<locked>>
81%
41510
52%
**39
97%
Somchem S321
<<locked>>
81%
66456
83%
**71
100%
Somchem S335
<<locked>>
81%
57101
71%
**64
100%
Somchem S341
<<locked>>
81%
59480
74%
**89
100%
Somchem S355
<<locked>>
81%
47790
60%
**38
100%
[Somchem S361]*
<<locked>>
81%
36129
45%
**95
91%
Somchem S365
<<locked>>
81%
36724
46%
**16
100%
[Somchem S385]*
<<locked>>
81%
33997
43%
**98
94%
Vihtavuori N130
<<locked>>
81%
64368
81%
**03
100%
Vihtavuori N133
<<locked>>
81%
58291
73%
**48
100%
Vihtavuori N135
<<locked>>
81%
52272
65%
**21
100%
Vihtavuori N140
<<locked>>
81%
54795
69%
**71
100%
Vihtavuori N150
<<locked>>
81%
45905
57%
**69
100%
Vihtavuori N160
<<locked>>
81%
41611
52%
**49
99%
[Vihtavuori N165]*
<<locked>>
81%
29211
37%
**70
91%
Vihtavuori N530
<<locked>>
81%
61134
77%
**89
100%
Vihtavuori N540
<<locked>>
81%
52939
66%
**64
100%
Vihtavuori N550
<<locked>>
81%
40944
51%
**49
99%
Vihtavuori N555
<<locked>>
81%
32082
40%
**08
98%
[Vihtavuori N560]*
<<locked>>
84%
34867
44%
**87
90%
[Vihtavuori N565]*
<<locked>>
89%
33489
42%
**57
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40756
51%
**23
100%
Winchester 748
<<locked>>
81%
62004
78%
**35
100%
Winchester 760
<<locked>>
81%
42627
53%
**15
98%
Winchester StaBALL HD
<<locked>>
81%
25570
32%
**13
97%
Winchester StaBALL Match
<<locked>>
81%
57145
72%
**79
100%
[Winchester Supreme 780]*
<<locked>>
81%
30966
39%
**23
91%

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

bottom of page