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Load data for 7 mm Backcountry + .284 | 183gr | Sierra MatchKing

Recommended Powder(s): Alliant Reloder-26, Hodgdon H4350, Hodgdon Superformance, IMR 4350, Norma 204

7 mm Backcountry + .284 | 183gr | Sierra MatchKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 183gr | Sierra MatchKing
Manufacturer SKU:
1983
Bullet Weight:
183gr | 11.9g
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_B5857_C991
Last updated:
2026-07-13
Recommended Twist Rate:
1:9 - 1:7

Load data for 260 loads in caliber 7 mm Backcountry with .284 | 183gr | Sierra MatchKing bullet and 130 powders such as Alliant Reloder-26, Hodgdon H4350, Hodgdon Superformance, IMR 4350, Norma 204. 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.

    .

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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 APS 450
<<locked>>
92%
71765
90%
**16
101%
ADI AR 2206H
<<locked>>
87%
71895
90%
**53
100%
ADI AR 2208
<<locked>>
92%
71054
89%
**33
100%
ADI AR 2209
<<locked>>
97%
59654
75%
**10
100%
ADI AR 2213
<<locked>>
97%
53084
66%
**51
98%
[ADI AR 2217]*
<<locked>>
97%
38986
49%
**88
94%
ADI AR 2225
<<locked>>
97%
34418
43%
**46
96%
ADI Benchmark 8208
<<locked>>
86%
71823
90%
**10
100%
Accurate 2015
<<locked>>
84%
70909
89%
**98
100%
Accurate 2495
<<locked>>
88%
70851
89%
**31
100%
Accurate 2520
<<locked>>
83%
71388
89%
**87
100%
Accurate 2700
<<locked>>
89%
71243
89%
**26
100%
Accurate 3100
<<locked>>
97%
52605
66%
**69
100%
Accurate 4064
<<locked>>
90%
71707
90%
**90
100%
Accurate 4350
<<locked>>
97%
71330
89%
**95
100%
Accurate MAGPRO
<<locked>>
97%
54853
69%
**10
98%
Alliant AR-Comp
<<locked>>
84%
71721
90%
**31
100%
Alliant Power Pro 2000-MR
<<locked>>
87%
71417
89%
**54
100%
Alliant Reloder- TS 15.5
<<locked>>
91%
71243
89%
**36
100%
Alliant Reloder-15
<<locked>>
89%
70953
89%
**59
100%
Alliant Reloder-16
<<locked>>
97%
67950
85%
**02
100%
Alliant Reloder-17
<<locked>>
93%
71808
90%
**35
100%
Alliant Reloder-19
<<locked>>
97%
58436
73%
**94
100%
Alliant Reloder-22
<<locked>>
97%
52431
66%
**54
99%
Alliant Reloder-23
<<locked>>
97%
49588
62%
**82
100%
Alliant Reloder-25
<<locked>>
97%
43569
55%
**36
100%
Alliant Reloder-26 👍
<<locked>>
97%
57174
72%
**69
100%
Baschieri & Pellagri 107
<<locked>>
86%
71054
89%
**62
100%
Baschieri & Pellagri 109
<<locked>>
97%
52098
65%
**62
95%
Bofors RP15
<<locked>>
97%
48472
61%
**89
98%
Bofors RP3
<<locked>>
90%
70692
88%
**33
100%
Bofors RP30
<<locked>>
97%
39204
49%
**51
95%
Bofors RP5
<<locked>>
97%
52431
66%
**54
99%
Bofors RP7
<<locked>>
95%
71634
90%
**66
100%
Hodgdon BL-C2
<<locked>>
85%
71678
90%
**36
100%
Hodgdon Benchmark
<<locked>>
85%
71881
90%
**74
100%
Hodgdon H1000
<<locked>>
97%
42279
53%
**61
96%
Hodgdon H380
<<locked>>
90%
70488
88%
**56
100%
Hodgdon H414
<<locked>>
96%
71344
89%
**35
100%
Hodgdon H4350 👍
<<locked>>
95%
71924
90%
**08
100%
Hodgdon H4831
<<locked>>
97%
57232
72%
**57
98%
Hodgdon H4831 SC
<<locked>>
97%
55738
70%
**31
98%
Hodgdon H4895
<<locked>>
86%
71663
90%
**43
100%
Hodgdon Hybrid 100V
<<locked>>
97%
63092
79%
**64
100%
Hodgdon LEVERevolution
<<locked>>
87%
70692
88%
**62
100%
Hodgdon Retumbo
<<locked>>
97%
42221
53%
**62
98%
Hodgdon Superformance 👍
<<locked>>
95%
71069
89%
**58
100%
Hodgdon TrailBoss
<<locked>>
96%
34722
43%
**49
100%
Hodgdon VARGET
<<locked>>
87%
70750
89%
**20
100%
IMR 3031
<<locked>>
85%
70953
89%
**87
100%
IMR 4064
<<locked>>
90%
71243
89%
**23
100%
IMR 4166 Enduron
<<locked>>
89%
71692
90%
**43
100%
IMR 4350 👍
<<locked>>
97%
67486
84%
**36
100%
IMR 4451 Enduron
<<locked>>
95%
71895
90%
**69
100%
IMR 4831
<<locked>>
97%
66863
84%
**36
100%
IMR 4895
<<locked>>
89%
71779
90%
**69
100%
IMR 4955 Enduron
<<locked>>
97%
58697
73%
**44
98%
IMR 7828 SSC
<<locked>>
97%
50995
64%
**31
98%
IMR 8208 XBR
<<locked>>
86%
71823
90%
**10
100%
Lovex D073.6
<<locked>>
86%
70590
88%
**94
100%
Lovex S060
<<locked>>
88%
70953
89%
**80
100%
Lovex S062
<<locked>>
90%
71808
90%
**13
100%
Lovex S065
<<locked>>
97%
71750
90%
**56
100%
Lovex S070
<<locked>>
97%
70010
88%
**66
100%
Lovex S071
<<locked>>
96%
43845
55%
**34
99%
Norma 201
<<locked>>
88%
71779
90%
**07
100%
Norma 202
<<locked>>
87%
71185
89%
**80
100%
Norma 203B
<<locked>>
90%
71170
89%
**53
100%
Norma 204 👍
<<locked>>
97%
69154
87%
**99
100%
[Norma 217]*
<<locked>>
96%
30037
38%
**70
93%
Norma MRP
<<locked>>
96%
55317
69%
**17
100%
Norma URP
<<locked>>
97%
69270
87%
**79
100%
Ramshot Big Game
<<locked>>
89%
71243
89%
**69
100%
Ramshot Grand
<<locked>>
97%
51256
64%
**51
98%
Ramshot Hunter
<<locked>>
97%
67762
85%
**92
100%
Ramshot Magnum
<<locked>>
97%
45832
57%
**39
99%
Ramshot TAC
<<locked>>
85%
71040
89%
**43
100%
Ramshot Wild Boar
<<locked>>
85%
71750
90%
**46
100%
Ramshot X-Terminator
<<locked>>
83%
70764
89%
**03
100%
ReloadSwiss RS 14
<<locked>>
97%
36056
45%
**98
100%
ReloadSwiss RS 50
<<locked>>
91%
71721
90%
**66
100%
ReloadSwiss RS 52
<<locked>>
86%
70517
88%
**99
100%
ReloadSwiss RS 60
<<locked>>
91%
71083
89%
**18
100%
ReloadSwiss RS 62
<<locked>>
97%
71156
89%
**18
100%
ReloadSwiss RS 70
<<locked>>
97%
70329
88%
**64
100%
ReloadSwiss RS 76
<<locked>>
97%
41684
52%
**52
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
37202
47%
**28
92%
Rottweil R 901
<<locked>>
85%
71489
89%
**61
100%
Rottweil R 902
<<locked>>
89%
70866
89%
**87
100%
Rottweil R 903
<<locked>>
92%
71272
89%
**33
100%
Rottweil R 904
<<locked>>
97%
61148
77%
**84
99%
Rottweil R 905
<<locked>>
97%
58233
73%
**87
100%
Rottweil R 907
<<locked>>
95%
71634
90%
**66
100%
SNPE Vectan SP 11
<<locked>>
91%
70938
89%
**69
100%
SNPE Vectan SP 7
<<locked>>
86%
71721
90%
**40
100%
SNPE Vectan SP 9
<<locked>>
87%
71185
89%
**40
100%
SNPE Vectan Tubal 3000
<<locked>>
87%
71489
89%
**15
100%
SNPE Vectan Tubal 5000
<<locked>>
92%
71025
89%
**98
100%
SNPE Vectan Tubal 7000
<<locked>>
96%
71199
89%
**13
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
57725
72%
**80
100%
Shooters World Long Rifle
<<locked>>
97%
71750
90%
**56
100%
Shooters World Match Rifle
<<locked>>
86%
70590
88%
**94
100%
Shooters World Precision
<<locked>>
90%
71808
90%
**13
100%
Shooters World SW4350
<<locked>>
97%
70010
88%
**66
100%
Somchem S335
<<locked>>
88%
71663
90%
**21
100%
Somchem S341
<<locked>>
86%
71083
89%
**17
100%
Somchem S355
<<locked>>
93%
71852
90%
**43
100%
Somchem S361
<<locked>>
97%
63237
79%
**74
99%
Somchem S365
<<locked>>
97%
65050
81%
**30
100%
Somchem S385
<<locked>>
97%
58523
73%
**57
100%
Vihtavuori N130
<<locked>>
84%
71475
89%
**72
100%
Vihtavuori N133
<<locked>>
87%
71866
90%
**89
100%
Vihtavuori N135
<<locked>>
90%
70822
89%
**28
100%
Vihtavuori N140
<<locked>>
89%
71257
89%
**48
100%
Vihtavuori N150
<<locked>>
94%
71518
89%
**87
100%
Vihtavuori N160
<<locked>>
97%
71576
90%
**62
100%
Vihtavuori N165
<<locked>>
97%
50734
63%
**39
99%
Vihtavuori N530
<<locked>>
85%
71040
89%
**90
100%
Vihtavuori N540
<<locked>>
90%
71011
89%
**71
100%
Vihtavuori N550
<<locked>>
97%
70880
89%
**85
100%
Vihtavuori N555
<<locked>>
97%
56057
70%
**54
100%
Vihtavuori N560
<<locked>>
96%
55405
69%
**10
98%
Vihtavuori N565
<<locked>>
97%
44831
56%
**30
96%
[Vihtavuori N568]*
<<locked>>
97%
38725
48%
**44
92%
Winchester 6.5 StaBALL
<<locked>>
97%
71576
90%
**26
100%
Winchester 748
<<locked>>
85%
71866
90%
**33
100%
Winchester 760
<<locked>>
96%
71344
89%
**35
100%
Winchester StaBALL HD
<<locked>>
97%
45397
57%
**51
100%
Winchester StaBALL Match
<<locked>>
87%
71881
90%
**49
100%
Winchester Supreme 780
<<locked>>
97%
55056
69%
**08
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59828
75%
**72
100%
ADI AR 2206H
<<locked>>
81%
59828
75%
**15
100%
ADI AR 2208
<<locked>>
81%
50676
63%
**87
100%
ADI AR 2209
<<locked>>
81%
35650
45%
**00
95%
[ADI AR 2213]*
<<locked>>
81%
31850
40%
**24
91%
[ADI AR 2217]*
<<locked>>
90%
31618
40%
**11
90%
[ADI AR 2225]*
<<locked>>
88%
26455
33%
**13
90%
ADI Benchmark 8208
<<locked>>
81%
61946
78%
**05
100%
Accurate 2015
<<locked>>
81%
64136
80%
**33
100%
Accurate 2495
<<locked>>
81%
57667
72%
**93
100%
Accurate 2520
<<locked>>
81%
66485
83%
**41
100%
Accurate 2700
<<locked>>
81%
54549
68%
**20
99%
Accurate 3100
<<locked>>
81%
31038
39%
**78
96%
Accurate 4064
<<locked>>
81%
54708
68%
**03
100%
Accurate 4350
<<locked>>
81%
42090
53%
**11
100%
[Accurate MAGPRO]*
<<locked>>
82%
32808
41%
**83
90%
Alliant AR-Comp
<<locked>>
81%
64542
81%
**59
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
57464
72%
**00
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
51648
65%
**07
100%
Alliant Reloder-15
<<locked>>
81%
55230
69%
**69
100%
Alliant Reloder-16
<<locked>>
81%
40538
51%
**21
100%
Alliant Reloder-17
<<locked>>
81%
46499
58%
**30
100%
Alliant Reloder-19
<<locked>>
81%
35346
44%
**90
95%
[Alliant Reloder-22]*
<<locked>>
81%
31328
39%
**41
93%
Alliant Reloder-23
<<locked>>
81%
30023
38%
**08
99%
[Alliant Reloder-25]*
<<locked>>
81%
26469
33%
**23
94%
Alliant Reloder-26
<<locked>>
81%
32329
40%
**23
98%
Baschieri & Pellagri 107
<<locked>>
81%
60046
75%
**41
100%
[Baschieri & Pellagri 109]*
<<locked>>
87%
39320
49%
**26
90%
[Bofors RP15]*
<<locked>>
81%
29138
36%
**78
91%
Bofors RP3
<<locked>>
81%
52663
66%
**23
100%
[Bofors RP30]*
<<locked>>
87%
29254
37%
**08
90%
[Bofors RP5]*
<<locked>>
81%
31328
39%
**41
93%
Bofors RP7
<<locked>>
81%
45861
57%
**21
99%
Hodgdon BL-C2
<<locked>>
81%
62787
79%
**41
100%
Hodgdon Benchmark
<<locked>>
81%
63150
79%
**79
100%
[Hodgdon H1000]*
<<locked>>
86%
29863
37%
**69
90%
Hodgdon H380
<<locked>>
81%
52837
66%
**43
100%
Hodgdon H414
<<locked>>
81%
43976
55%
**57
99%
Hodgdon H4350
<<locked>>
81%
47079
59%
**77
98%
[Hodgdon H4831]*
<<locked>>
81%
33620
42%
**31
91%
[Hodgdon H4831 SC]*
<<locked>>
81%
33243
42%
**24
91%
Hodgdon H4895
<<locked>>
81%
60539
76%
**18
100%
Hodgdon Hybrid 100V
<<locked>>
81%
38101
48%
**13
100%
Hodgdon LEVERevolution
<<locked>>
81%
57682
72%
**12
100%
[Hodgdon Retumbo]*
<<locked>>
84%
28456
36%
**98
90%
Hodgdon Superformance
<<locked>>
81%
42975
54%
**74
98%
Hodgdon TrailBoss
<<locked>>
88%
30995
39%
**80
100%
Hodgdon VARGET
<<locked>>
81%
57740
72%
**72
100%
IMR 3031
<<locked>>
81%
61714
77%
**85
100%
IMR 4064
<<locked>>
81%
53403
67%
**10
100%
IMR 4166 Enduron
<<locked>>
81%
55854
70%
**52
100%
IMR 4350
<<locked>>
81%
41350
52%
**59
98%
IMR 4451 Enduron
<<locked>>
81%
47326
59%
**44
99%
IMR 4831
<<locked>>
81%
40277
50%
**65
100%
IMR 4895
<<locked>>
81%
56608
71%
**98
100%
[IMR 4955 Enduron]*
<<locked>>
81%
35824
45%
**51
93%
[IMR 7828 SSC]*
<<locked>>
82%
31024
39%
**15
90%
IMR 8208 XBR
<<locked>>
81%
61946
78%
**05
100%
Lovex D073.6
<<locked>>
81%
60568
76%
**89
100%
Lovex S060
<<locked>>
81%
58146
73%
**39
100%
Lovex S062
<<locked>>
81%
53838
67%
**10
100%
Lovex S065
<<locked>>
81%
44730
56%
**02
100%
Lovex S070
<<locked>>
81%
42786
54%
**85
99%
[Lovex S071]*
<<locked>>
81%
26803
34%
**70
94%
Norma 201
<<locked>>
81%
58668
73%
**59
100%
Norma 202
<<locked>>
81%
59248
74%
**49
100%
Norma 203B
<<locked>>
81%
54447
68%
**62
100%
Norma 204
<<locked>>
81%
40785
51%
**85
96%
[Norma 217]*
<<locked>>
92%
26266
33%
**49
90%
Norma MRP
<<locked>>
81%
32285
40%
**93
95%
Norma URP
<<locked>>
81%
41713
52%
**08
100%
Ramshot Big Game
<<locked>>
81%
55288
69%
**85
100%
[Ramshot Grand]*
<<locked>>
82%
30298
38%
**08
90%
Ramshot Hunter
<<locked>>
81%
40524
51%
**02
99%
[Ramshot Magnum]*
<<locked>>
81%
26208
33%
**90
90%
Ramshot TAC
<<locked>>
81%
62352
78%
**48
100%
Ramshot Wild Boar
<<locked>>
81%
62758
79%
**54
100%
Ramshot X-Terminator
<<locked>>
81%
66471
83%
**57
100%
ReloadSwiss RS 14
<<locked>>
84%
30110
38%
**86
100%
ReloadSwiss RS 50
<<locked>>
81%
52402
66%
**23
100%
ReloadSwiss RS 52
<<locked>>
81%
60278
75%
**84
100%
ReloadSwiss RS 60
<<locked>>
81%
49356
62%
**69
100%
ReloadSwiss RS 62
<<locked>>
81%
42090
53%
**34
100%
ReloadSwiss RS 70
<<locked>>
81%
40451
51%
**44
99%
[ReloadSwiss RS 76]*
<<locked>>
83%
26382
33%
**36
90%
[ReloadSwiss RS 80]*
<<locked>>
94%
33475
42%
**39
90%
Rottweil R 901
<<locked>>
81%
62714
78%
**66
100%
Rottweil R 902
<<locked>>
81%
56144
70%
**16
100%
Rottweil R 903
<<locked>>
81%
49414
62%
**74
100%
[Rottweil R 904]*
<<locked>>
81%
36898
46%
**77
94%
Rottweil R 905
<<locked>>
81%
34490
43%
**77
95%
Rottweil R 907
<<locked>>
81%
45861
57%
**21
99%
SNPE Vectan SP 11
<<locked>>
81%
50488
63%
**30
100%
SNPE Vectan SP 7
<<locked>>
81%
61540
77%
**31
100%
SNPE Vectan SP 9
<<locked>>
81%
58262
73%
**92
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
59219
74%
**90
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
50198
63%
**69
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43772
55%
**56
99%
SNPE Vectan Tubal 8000
<<locked>>
81%
34171
43%
**74
95%
Shooters World Long Rifle
<<locked>>
81%
44730
56%
**02
100%
Shooters World Match Rifle
<<locked>>
81%
60568
76%
**89
100%
Shooters World Precision
<<locked>>
81%
53838
67%
**10
100%
Shooters World SW4350
<<locked>>
81%
42786
54%
**85
99%
Somchem S335
<<locked>>
81%
58972
74%
**90
100%
Somchem S341
<<locked>>
81%
61105
76%
**08
100%
Somchem S355
<<locked>>
81%
49545
62%
**70
100%
[Somchem S361]*
<<locked>>
81%
37507
47%
**67
93%
Somchem S365
<<locked>>
81%
38305
48%
**69
100%
Somchem S385
<<locked>>
81%
35244
44%
**67
96%
Vihtavuori N130
<<locked>>
81%
65847
82%
**16
100%
Vihtavuori N133
<<locked>>
81%
59712
75%
**67
100%
Vihtavuori N135
<<locked>>
81%
53809
67%
**48
100%
Vihtavuori N140
<<locked>>
81%
56275
70%
**87
100%
Vihtavuori N150
<<locked>>
81%
47268
59%
**08
100%
Vihtavuori N160
<<locked>>
81%
43120
54%
**05
100%
[Vihtavuori N165]*
<<locked>>
81%
30327
38%
**49
93%
Vihtavuori N530
<<locked>>
81%
62932
79%
**08
100%
Vihtavuori N540
<<locked>>
81%
54534
68%
**93
100%
Vihtavuori N550
<<locked>>
81%
42699
53%
**08
100%
Vihtavuori N555
<<locked>>
81%
33301
42%
**74
99%
[Vihtavuori N560]*
<<locked>>
81%
32735
41%
**80
91%
[Vihtavuori N565]*
<<locked>>
85%
30182
38%
**15
90%
[Vihtavuori N568]*
<<locked>>
93%
34940
44%
**56
90%
Winchester 6.5 StaBALL
<<locked>>
81%
42047
53%
**72
100%
Winchester 748
<<locked>>
81%
63962
80%
**51
100%
Winchester 760
<<locked>>
81%
43976
55%
**57
99%
Winchester StaBALL HD
<<locked>>
81%
24105
30%
**11
99%
Winchester StaBALL Match
<<locked>>
81%
58798
74%
**02
100%
[Winchester Supreme 780]*
<<locked>>
81%
31908
40%
**92
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.

<<locked>>... you need to buy an access license to unlock the data

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