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Load data for 7 mm Backcountry + .284 | 160gr | Barnes MRX BT

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

7 mm Backcountry + .284 | 160gr | Barnes MRX BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 160gr | Barnes MRX BT
Manufacturer SKU:
28486
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_B576_C991
Last updated:
2026-07-13
Recommended Twist Rate:
1:12 - 1:10

Load data for 256 loads in caliber 7 mm Backcountry with .284 | 160gr | Barnes MRX BT 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%
71460
89%
**00
101%
ADI AR 2206H
<<locked>>
88%
70895
89%
**59
100%
ADI AR 2208
<<locked>>
93%
71605
90%
**56
100%
ADI AR 2209
<<locked>>
97%
57609
72%
**81
99%
ADI AR 2213
<<locked>>
97%
50792
64%
**05
97%
[ADI AR 2217]*
<<locked>>
97%
37376
47%
**20
92%
[ADI AR 2225]*
<<locked>>
97%
32866
41%
**64
94%
ADI Benchmark 8208
<<locked>>
87%
71446
89%
**27
100%
Accurate 2015
<<locked>>
86%
71736
90%
**28
100%
Accurate 2495
<<locked>>
89%
71359
89%
**54
100%
Accurate 2520
<<locked>>
84%
71736
90%
**10
100%
Accurate 2700
<<locked>>
90%
70909
89%
**40
100%
Accurate 3100
<<locked>>
97%
50502
63%
**36
100%
Accurate 4064
<<locked>>
91%
71547
90%
**10
100%
Accurate 4350
<<locked>>
97%
69357
87%
**95
100%
Accurate MAGPRO
<<locked>>
97%
52446
66%
**67
96%
Alliant AR-Comp
<<locked>>
85%
71199
89%
**44
100%
Alliant Power Pro 2000-MR
<<locked>>
88%
71910
90%
**94
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
71272
89%
**63
100%
Alliant Reloder-15
<<locked>>
90%
71634
90%
**86
100%
Alliant Reloder-16
<<locked>>
97%
64992
81%
**86
100%
Alliant Reloder-17
<<locked>>
94%
71257
89%
**61
100%
Alliant Reloder-19
<<locked>>
97%
56724
71%
**64
99%
Alliant Reloder-22
<<locked>>
97%
50009
63%
**12
98%
Alliant Reloder-23
<<locked>>
97%
47718
60%
**46
100%
Alliant Reloder-25
<<locked>>
97%
41524
52%
**74
99%
Alliant Reloder-26
<<locked>>
97%
54375
68%
**33
100%
Baschieri & Pellagri 107
<<locked>>
87%
71228
89%
**89
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
50633
63%
**20
93%
Bofors RP15
<<locked>>
97%
46557
58%
**43
97%
Bofors RP3
<<locked>>
92%
71663
90%
**63
100%
[Bofors RP30]*
<<locked>>
97%
37550
47%
**82
93%
Bofors RP5
<<locked>>
97%
50009
63%
**12
98%
Bofors RP7
<<locked>>
96%
70996
89%
**72
100%
Hodgdon BL-C2
<<locked>>
86%
71765
90%
**53
100%
Hodgdon Benchmark
<<locked>>
86%
71272
89%
**84
100%
[Hodgdon H1000]*
<<locked>>
97%
40770
51%
**05
94%
Hodgdon H380
<<locked>>
91%
70793
89%
**79
100%
Hodgdon H414 👍
<<locked>>
97%
71576
90%
**51
100%
Hodgdon H4350 👍
<<locked>>
95%
71170
89%
**18
100%
Hodgdon H4831
<<locked>>
97%
55259
69%
**25
97%
Hodgdon H4831 SC
<<locked>>
97%
53490
67%
**95
97%
Hodgdon H4895
<<locked>>
88%
71765
90%
**66
100%
Hodgdon Hybrid 100V
<<locked>>
97%
61409
77%
**54
100%
Hodgdon LEVERevolution
<<locked>>
89%
71199
89%
**89
100%
Hodgdon Retumbo
<<locked>>
97%
40553
51%
**03
96%
Hodgdon Superformance 👍
<<locked>>
96%
71098
89%
**74
100%
Hodgdon TrailBoss
<<locked>>
96%
34447
43%
**86
100%
Hodgdon VARGET
<<locked>>
89%
70996
89%
**49
100%
IMR 3031
<<locked>>
87%
71243
89%
**10
100%
IMR 4064
<<locked>>
91%
70938
89%
**40
100%
IMR 4166 Enduron
<<locked>>
90%
71446
89%
**59
100%
IMR 4350
<<locked>>
97%
65441
82%
**27
100%
IMR 4451 Enduron
<<locked>>
96%
71402
89%
**86
100%
IMR 4831
<<locked>>
97%
63947
80%
**17
100%
IMR 4895
<<locked>>
89%
71272
89%
**92
100%
IMR 4955 Enduron
<<locked>>
97%
56855
71%
**15
97%
IMR 7828 SSC
<<locked>>
97%
48805
61%
**89
96%
IMR 8208 XBR
<<locked>>
87%
71446
89%
**27
100%
Lovex D073.6
<<locked>>
87%
70822
89%
**13
100%
Lovex S060
<<locked>>
89%
71141
89%
**07
100%
Lovex S062
<<locked>>
91%
71083
89%
**27
100%
Lovex S065
<<locked>>
97%
69865
87%
**53
100%
Lovex S070
<<locked>>
97%
67805
85%
**53
100%
Lovex S071
<<locked>>
97%
41800
52%
**85
98%
Norma 201
<<locked>>
89%
71402
89%
**23
100%
Norma 202
<<locked>>
88%
71112
89%
**97
100%
Norma 203B
<<locked>>
90%
70735
89%
**69
100%
Norma 204
<<locked>>
97%
67124
84%
**89
100%
Norma MRP
<<locked>>
97%
53200
67%
**94
99%
Norma URP
<<locked>>
97%
66964
84%
**79
100%
Ramshot Big Game
<<locked>>
90%
71678
90%
**92
100%
Ramshot Grand
<<locked>>
97%
48892
61%
**02
97%
Ramshot Hunter
<<locked>>
97%
65412
82%
**82
100%
Ramshot Magnum
<<locked>>
97%
42960
54%
**61
97%
Ramshot TAC
<<locked>>
86%
70866
89%
**59
100%
Ramshot Wild Boar
<<locked>>
86%
71707
90%
**69
100%
Ramshot X-Terminator
<<locked>>
84%
71881
90%
**30
100%
ReloadSwiss RS 14
<<locked>>
97%
35607
45%
**36
100%
ReloadSwiss RS 50
<<locked>>
92%
71170
89%
**72
100%
ReloadSwiss RS 52
<<locked>>
87%
71620
90%
**41
100%
ReloadSwiss RS 60
<<locked>>
92%
71098
89%
**48
100%
ReloadSwiss RS 62
<<locked>>
97%
69575
87%
**22
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
67675
85%
**54
100%
ReloadSwiss RS 76
<<locked>>
97%
39871
50%
**80
97%
Rottweil R 901
<<locked>>
87%
71388
89%
**87
100%
Rottweil R 902
<<locked>>
90%
71214
89%
**17
100%
Rottweil R 903
<<locked>>
93%
70924
89%
**56
100%
Rottweil R 904
<<locked>>
97%
58392
73%
**41
98%
Rottweil R 905
<<locked>>
97%
56028
70%
**51
99%
Rottweil R 907
<<locked>>
96%
70996
89%
**72
100%
SNPE Vectan SP 11
<<locked>>
92%
70663
88%
**86
100%
SNPE Vectan SP 7
<<locked>>
87%
71895
90%
**59
100%
SNPE Vectan SP 9
<<locked>>
89%
71736
90%
**69
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
71547
90%
**35
100%
SNPE Vectan Tubal 5000
<<locked>>
94%
71315
89%
**15
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
70329
88%
**17
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
55550
70%
**54
99%
Shooters World Long Rifle
<<locked>>
97%
69865
87%
**53
100%
Shooters World Match Rifle
<<locked>>
87%
70822
89%
**13
100%
Shooters World Precision
<<locked>>
91%
71083
89%
**27
100%
Shooters World SW4350
<<locked>>
97%
67805
85%
**53
100%
Somchem S321
<<locked>>
83%
71315
89%
**33
100%
Somchem S335
<<locked>>
89%
71605
90%
**38
100%
Somchem S341
<<locked>>
87%
71315
89%
**36
100%
Somchem S355
<<locked>>
94%
71765
90%
**56
100%
Somchem S361
<<locked>>
97%
61017
76%
**48
98%
Somchem S365
<<locked>>
97%
62482
78%
**20
100%
Somchem S385
<<locked>>
97%
55999
70%
**25
99%
Vihtavuori N130
<<locked>>
85%
71098
89%
**82
100%
Vihtavuori N133
<<locked>>
88%
70909
89%
**99
100%
Vihtavuori N135
<<locked>>
91%
71417
89%
**58
100%
Vihtavuori N140
<<locked>>
90%
71895
90%
**77
100%
Vihtavuori N150
<<locked>>
95%
71185
89%
**00
100%
Vihtavuori N160
<<locked>>
97%
69734
87%
**63
100%
Vihtavuori N165
<<locked>>
97%
48950
61%
**97
98%
Vihtavuori N530
<<locked>>
86%
71098
89%
**17
100%
Vihtavuori N540
<<locked>>
91%
71489
89%
**94
100%
Vihtavuori N550
<<locked>>
97%
67617
85%
**69
100%
Vihtavuori N555
<<locked>>
97%
52881
66%
**15
100%
Vihtavuori N560
<<locked>>
97%
53519
67%
**74
97%
[Vihtavuori N565]*
<<locked>>
97%
42250
53%
**64
94%
Winchester 6.5 StaBALL
<<locked>>
97%
69850
87%
**23
100%
Winchester 748
<<locked>>
85%
71257
89%
**49
100%
Winchester 760 👍
<<locked>>
97%
71011
89%
**48
100%
Winchester StaBALL HD
<<locked>>
97%
42641
53%
**02
100%
Winchester StaBALL Match
<<locked>>
88%
71866
90%
**63
100%
Winchester Supreme 780
<<locked>>
97%
52968
66%
**69
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59466
74%
**42
100%
ADI AR 2206H
<<locked>>
81%
57885
72%
**99
100%
ADI AR 2208
<<locked>>
81%
49008
61%
**57
100%
[ADI AR 2209]*
<<locked>>
81%
33837
42%
**25
92%
[ADI AR 2213]*
<<locked>>
85%
34185
43%
**48
90%
[ADI AR 2217]*
<<locked>>
94%
34432
43%
**44
90%
[ADI AR 2225]*
<<locked>>
92%
28442
36%
**29
90%
ADI Benchmark 8208
<<locked>>
81%
60133
75%
**92
100%
Accurate 2015
<<locked>>
81%
62105
78%
**23
100%
Accurate 2495
<<locked>>
81%
54607
68%
**64
100%
Accurate 2520
<<locked>>
81%
63976
80%
**28
100%
Accurate 2700
<<locked>>
81%
52591
66%
**90
99%
[Accurate 3100]*
<<locked>>
81%
28964
36%
**93
94%
Accurate 4064
<<locked>>
81%
51808
65%
**74
100%
Accurate 4350
<<locked>>
81%
39885
50%
**59
99%
[Accurate MAGPRO]*
<<locked>>
87%
36216
45%
**39
90%
Alliant AR-Comp
<<locked>>
81%
62424
78%
**49
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
55143
69%
**74
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
49516
62%
**77
100%
Alliant Reloder-15
<<locked>>
81%
53185
67%
**49
100%
Alliant Reloder-16
<<locked>>
81%
38682
48%
**66
99%
Alliant Reloder-17
<<locked>>
81%
44483
56%
**94
100%
[Alliant Reloder-19]*
<<locked>>
81%
33634
42%
**18
92%
[Alliant Reloder-22]*
<<locked>>
81%
29776
37%
**52
90%
Alliant Reloder-23
<<locked>>
81%
28253
35%
**26
97%
[Alliant Reloder-25]*
<<locked>>
81%
24772
31%
**11
90%
Alliant Reloder-26
<<locked>>
81%
30139
38%
**34
96%
Baschieri & Pellagri 107
<<locked>>
81%
58102
73%
**28
100%
[Baschieri & Pellagri 109]*
<<locked>>
91%
43091
54%
**72
90%
[Bofors RP15]*
<<locked>>
84%
30139
38%
**69
90%
Bofors RP3
<<locked>>
81%
49951
63%
**87
100%
[Bofors RP30]*
<<locked>>
92%
31720
40%
**38
90%
[Bofors RP5]*
<<locked>>
81%
29776
37%
**52
90%
Bofors RP7
<<locked>>
81%
43932
55%
**75
97%
Hodgdon BL-C2
<<locked>>
81%
60249
75%
**22
100%
Hodgdon Benchmark
<<locked>>
81%
61163
77%
**69
100%
[Hodgdon H1000]*
<<locked>>
91%
33301
42%
**18
90%
Hodgdon H380
<<locked>>
81%
50430
63%
**03
100%
Hodgdon H414
<<locked>>
81%
41858
52%
**02
97%
Hodgdon H4350
<<locked>>
81%
44889
56%
**25
97%
[Hodgdon H4831]*
<<locked>>
83%
34693
43%
**25
90%
[Hodgdon H4831 SC]*
<<locked>>
84%
34693
43%
**25
90%
Hodgdon H4895
<<locked>>
81%
58552
73%
**08
100%
Hodgdon Hybrid 100V
<<locked>>
81%
36114
45%
**61
99%
Hodgdon LEVERevolution
<<locked>>
81%
55259
69%
**92
100%
[Hodgdon Retumbo]*
<<locked>>
89%
30777
39%
**28
90%
Hodgdon Superformance
<<locked>>
81%
40843
51%
**15
97%
Hodgdon TrailBoss
<<locked>>
81%
27673
35%
**49
100%
Hodgdon VARGET
<<locked>>
81%
56072
70%
**62
100%
IMR 3031
<<locked>>
81%
59625
75%
**82
100%
IMR 4064
<<locked>>
81%
51619
65%
**90
100%
IMR 4166 Enduron
<<locked>>
81%
54056
68%
**23
99%
IMR 4350
<<locked>>
81%
39378
49%
**00
96%
IMR 4451 Enduron
<<locked>>
81%
45455
57%
**02
98%
IMR 4831
<<locked>>
81%
38348
48%
**10
99%
IMR 4895
<<locked>>
81%
54636
68%
**72
100%
[IMR 4955 Enduron]*
<<locked>>
81%
34084
43%
**79
90%
[IMR 7828 SSC]*
<<locked>>
86%
33794
42%
**51
90%
IMR 8208 XBR
<<locked>>
81%
60133
75%
**92
100%
Lovex D073.6
<<locked>>
81%
58523
73%
**72
100%
Lovex S060
<<locked>>
81%
56579
71%
**23
100%
Lovex S062
<<locked>>
81%
51837
65%
**80
100%
Lovex S065
<<locked>>
81%
42772
54%
**56
99%
Lovex S070
<<locked>>
81%
40785
51%
**30
97%
[Lovex S071]*
<<locked>>
81%
24743
31%
**65
91%
Norma 201
<<locked>>
81%
56333
70%
**40
100%
Norma 202
<<locked>>
81%
57058
71%
**33
100%
Norma 203B
<<locked>>
81%
52417
66%
**33
100%
[Norma 204]*
<<locked>>
81%
38725
48%
**20
94%
[Norma MRP]*
<<locked>>
81%
30501
38%
**02
92%
Norma URP
<<locked>>
81%
39436
49%
**46
99%
Ramshot Big Game
<<locked>>
81%
53055
66%
**66
100%
[Ramshot Grand]*
<<locked>>
86%
33547
42%
**54
90%
Ramshot Hunter
<<locked>>
81%
38305
48%
**36
97%
[Ramshot Magnum]*
<<locked>>
86%
28993
36%
**20
90%
Ramshot TAC
<<locked>>
81%
60089
75%
**25
100%
Ramshot Wild Boar
<<locked>>
81%
60437
76%
**35
100%
Ramshot X-Terminator
<<locked>>
81%
64701
81%
**48
100%
ReloadSwiss RS 14
<<locked>>
81%
28166
35%
**85
100%
ReloadSwiss RS 50
<<locked>>
81%
50401
63%
**90
99%
ReloadSwiss RS 52
<<locked>>
81%
57580
72%
**64
100%
ReloadSwiss RS 60
<<locked>>
81%
47253
59%
**40
100%
ReloadSwiss RS 62
<<locked>>
81%
39552
49%
**72
99%
ReloadSwiss RS 70
<<locked>>
81%
38508
48%
**89
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
29254
37%
**75
90%
Rottweil R 901
<<locked>>
81%
60162
75%
**53
100%
Rottweil R 902
<<locked>>
81%
53461
67%
**94
100%
Rottweil R 903
<<locked>>
81%
46949
59%
**41
100%
[Rottweil R 904]*
<<locked>>
81%
35157
44%
**11
92%
[Rottweil R 905]*
<<locked>>
81%
32503
41%
**95
92%
Rottweil R 907
<<locked>>
81%
43932
55%
**75
97%
SNPE Vectan SP 11
<<locked>>
81%
48254
60%
**90
100%
SNPE Vectan SP 7
<<locked>>
81%
59292
74%
**15
100%
SNPE Vectan SP 9
<<locked>>
81%
56173
70%
**72
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
57145
72%
**71
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
48370
61%
**39
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41669
52%
**97
97%
[SNPE Vectan Tubal 8000]*
<<locked>>
81%
32198
40%
**95
92%
Shooters World Long Rifle
<<locked>>
81%
42772
54%
**56
99%
Shooters World Match Rifle
<<locked>>
81%
58523
73%
**72
100%
Shooters World Precision
<<locked>>
81%
51837
65%
**80
100%
Shooters World SW4350
<<locked>>
81%
40785
51%
**30
97%
Somchem S321
<<locked>>
81%
66036
83%
**74
100%
Somchem S335
<<locked>>
81%
56884
71%
**67
100%
Somchem S341
<<locked>>
81%
59132
74%
**95
100%
Somchem S355
<<locked>>
81%
47369
59%
**35
100%
[Somchem S361]*
<<locked>>
81%
35578
45%
**92
91%
Somchem S365
<<locked>>
81%
35969
45%
**10
100%
[Somchem S385]*
<<locked>>
81%
33098
41%
**85
94%
Vihtavuori N130
<<locked>>
81%
63744
80%
**07
100%
Vihtavuori N133
<<locked>>
81%
57696
72%
**51
100%
Vihtavuori N135
<<locked>>
81%
51561
65%
**25
100%
Vihtavuori N140
<<locked>>
81%
54114
68%
**67
100%
Vihtavuori N150
<<locked>>
81%
45252
57%
**66
100%
Vihtavuori N160
<<locked>>
81%
41176
52%
**52
99%
[Vihtavuori N165]*
<<locked>>
81%
28572
36%
**60
90%
Vihtavuori N530
<<locked>>
81%
60452
76%
**89
100%
Vihtavuori N540
<<locked>>
81%
52489
66%
**71
100%
Vihtavuori N550
<<locked>>
81%
40466
51%
**52
99%
Vihtavuori N555
<<locked>>
81%
31096
39%
**92
97%
[Vihtavuori N560]*
<<locked>>
84%
34867
44%
**97
90%
[Vihtavuori N565]*
<<locked>>
90%
33185
42%
**61
90%
Winchester 6.5 StaBALL
<<locked>>
81%
40277
50%
**23
100%
Winchester 748
<<locked>>
81%
61772
77%
**41
100%
Winchester 760
<<locked>>
81%
42235
53%
**08
98%
Winchester StaBALL HD
<<locked>>
81%
24714
31%
**93
96%
Winchester StaBALL Match
<<locked>>
81%
56608
71%
**82
100%
[Winchester Supreme 780]*
<<locked>>
81%
30110
38%
**10
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.

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

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