top of page

Load data for 7 mm Backcountry + .284 | 150gr | Barnes X BT

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

7 mm Backcountry + .284 | 150gr | Barnes X BT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 150gr | Barnes X BT
Manufacturer SKU:
28428
Bullet Weight:
150gr | 9.7g
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_B571_C991
Last updated:
2026-07-16
Recommended Twist Rate:
1:10 - 1:9

Load data for 254 loads in caliber 7 mm Backcountry with .284 | 150gr | Barnes X BT bullet and 127 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%
71083
89%
**52
101%
ADI AR 2206H
<<locked>>
88%
71344
89%
**35
100%
ADI AR 2208
<<locked>>
93%
71692
90%
**28
100%
ADI AR 2209
<<locked>>
97%
57145
72%
**36
98%
ADI AR 2213
<<locked>>
97%
51880
65%
**67
96%
[ADI AR 2225]*
<<locked>>
97%
34505
43%
**36
93%
ADI Benchmark 8208
<<locked>>
87%
71504
89%
**99
100%
Accurate 2015
<<locked>>
85%
71431
89%
**90
100%
Accurate 2495
<<locked>>
88%
70677
88%
**10
100%
Accurate 2520
<<locked>>
84%
70895
89%
**72
100%
Accurate 2700
<<locked>>
90%
71533
90%
**02
100%
Accurate 3100
<<locked>>
97%
51938
65%
**08
99%
Accurate 4064
<<locked>>
90%
71533
90%
**72
100%
Accurate 4350
<<locked>>
97%
69560
87%
**64
100%
Accurate MAGPRO
<<locked>>
97%
52692
66%
**20
95%
Alliant AR-Comp
<<locked>>
85%
71489
89%
**20
100%
Alliant Power Pro 2000-MR
<<locked>>
89%
71605
90%
**63
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
71402
89%
**31
100%
Alliant Reloder-15
<<locked>>
90%
71228
89%
**51
100%
Alliant Reloder-16
<<locked>>
96%
64049
80%
**48
100%
Alliant Reloder-17
<<locked>>
94%
70750
89%
**23
100%
Alliant Reloder-19
<<locked>>
97%
56579
71%
**30
98%
Alliant Reloder-22
<<locked>>
97%
51372
64%
**77
97%
Alliant Reloder-23
<<locked>>
97%
48182
60%
**18
100%
Alliant Reloder-25
<<locked>>
97%
42496
53%
**36
98%
Alliant Reloder-26
<<locked>>
97%
54462
68%
**99
100%
Baschieri & Pellagri 107
<<locked>>
88%
71881
90%
**58
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
51358
64%
**72
92%
Bofors RP15
<<locked>>
97%
47079
59%
**99
96%
Bofors RP3
<<locked>>
91%
71736
90%
**38
100%
[Bofors RP30]*
<<locked>>
97%
38740
48%
**51
92%
Bofors RP5
<<locked>>
97%
51372
64%
**77
97%
Bofors RP7
<<locked>>
97%
71866
90%
**51
100%
Hodgdon BL-C2
<<locked>>
86%
71489
89%
**25
100%
Hodgdon Benchmark
<<locked>>
86%
71286
89%
**53
100%
[Hodgdon H1000]*
<<locked>>
97%
41814
52%
**57
93%
Hodgdon H380
<<locked>>
91%
70938
89%
**41
100%
Hodgdon H414 👍
<<locked>>
97%
70953
89%
**14
100%
Hodgdon H4350 👍
<<locked>>
95%
71460
89%
**81
100%
Hodgdon H4831
<<locked>>
97%
55419
69%
**77
96%
Hodgdon H4831 SC
<<locked>>
97%
54636
68%
**58
96%
Hodgdon H4895
<<locked>>
87%
71243
89%
**31
100%
Hodgdon Hybrid 100V
<<locked>>
97%
61032
76%
**20
100%
Hodgdon LEVERevolution
<<locked>>
89%
71721
90%
**61
100%
Hodgdon Retumbo
<<locked>>
97%
41655
52%
**62
95%
Hodgdon Superformance 👍
<<locked>>
96%
71663
90%
**53
100%
Hodgdon TrailBoss
<<locked>>
96%
35099
44%
**39
100%
Hodgdon VARGET
<<locked>>
89%
71228
89%
**15
100%
IMR 3031
<<locked>>
87%
71895
90%
**92
100%
IMR 4064
<<locked>>
91%
71301
89%
**12
100%
IMR 4166 Enduron
<<locked>>
90%
71852
90%
**18
100%
IMR 4350
<<locked>>
97%
65093
81%
**79
100%
IMR 4451 Enduron
<<locked>>
96%
71692
90%
**48
100%
IMR 4831
<<locked>>
97%
64948
81%
**95
100%
IMR 4895
<<locked>>
90%
71910
90%
**64
100%
IMR 4955 Enduron
<<locked>>
97%
56637
71%
**61
96%
IMR 7828 SSC
<<locked>>
97%
49095
61%
**38
95%
IMR 8208 XBR
<<locked>>
87%
71504
89%
**99
100%
Lovex D073.6
<<locked>>
87%
70982
89%
**86
100%
Lovex S060
<<locked>>
89%
71257
89%
**69
100%
Lovex S062
<<locked>>
91%
71910
90%
**02
100%
Lovex S065
<<locked>>
97%
69821
87%
**12
100%
Lovex S070
<<locked>>
97%
67878
85%
**12
100%
Lovex S071
<<locked>>
97%
44193
55%
**71
98%
Norma 201
<<locked>>
88%
71547
90%
**89
100%
Norma 202
<<locked>>
88%
71170
89%
**63
100%
Norma 203B
<<locked>>
91%
71475
89%
**54
100%
Norma 204
<<locked>>
97%
66514
83%
**38
99%
Norma MRP
<<locked>>
97%
53447
67%
**49
99%
Norma URP
<<locked>>
97%
66775
84%
**38
100%
Ramshot Big Game
<<locked>>
90%
71098
89%
**61
100%
Ramshot Grand
<<locked>>
97%
49400
62%
**48
96%
Ramshot Hunter
<<locked>>
97%
64977
81%
**38
100%
Ramshot Magnum
<<locked>>
97%
44918
56%
**43
96%
Ramshot TAC
<<locked>>
86%
71721
90%
**38
100%
Ramshot Wild Boar
<<locked>>
86%
71069
89%
**35
100%
Ramshot X-Terminator
<<locked>>
84%
71895
90%
**95
100%
ReloadSwiss RS 14
<<locked>>
96%
35679
45%
**75
100%
ReloadSwiss RS 50
<<locked>>
91%
70837
89%
**35
100%
ReloadSwiss RS 52
<<locked>>
87%
71649
90%
**10
100%
ReloadSwiss RS 60
<<locked>>
93%
71692
90%
**30
100%
ReloadSwiss RS 62
<<locked>>
97%
69140
87%
**84
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
66993
84%
**17
100%
ReloadSwiss RS 76
<<locked>>
97%
41481
52%
**59
96%
Rottweil R 901
<<locked>>
86%
71272
89%
**43
100%
Rottweil R 902
<<locked>>
90%
71228
89%
**72
100%
Rottweil R 903
<<locked>>
93%
70982
89%
**18
100%
Rottweil R 904
<<locked>>
97%
59205
74%
**10
97%
Rottweil R 905
<<locked>>
97%
56057
70%
**17
98%
Rottweil R 907
<<locked>>
97%
71866
90%
**51
100%
SNPE Vectan SP 11
<<locked>>
93%
71388
89%
**61
100%
SNPE Vectan SP 7
<<locked>>
86%
71301
89%
**22
100%
SNPE Vectan SP 9
<<locked>>
88%
71040
89%
**22
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
70750
89%
**90
100%
SNPE Vectan Tubal 5000
<<locked>>
94%
71634
90%
**90
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
70271
88%
**72
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
55593
70%
**10
98%
Shooters World Long Rifle
<<locked>>
97%
69821
87%
**12
100%
Shooters World Match Rifle
<<locked>>
87%
70982
89%
**86
100%
Shooters World Precision
<<locked>>
91%
71910
90%
**02
100%
Shooters World SW4350
<<locked>>
97%
67878
85%
**12
100%
Somchem S321
<<locked>>
83%
71359
89%
**02
100%
Somchem S335
<<locked>>
88%
71475
89%
**04
100%
Somchem S341
<<locked>>
87%
71359
89%
**02
100%
Somchem S355
<<locked>>
94%
71591
90%
**28
100%
Somchem S361
<<locked>>
97%
61293
77%
**04
97%
Somchem S365
<<locked>>
97%
62134
78%
**86
100%
Somchem S385
<<locked>>
97%
57537
72%
**00
99%
Vihtavuori N130
<<locked>>
85%
71518
89%
**54
100%
Vihtavuori N133
<<locked>>
88%
71069
89%
**61
100%
Vihtavuori N135
<<locked>>
91%
71011
89%
**13
100%
Vihtavuori N140
<<locked>>
90%
71344
89%
**33
100%
Vihtavuori N150
<<locked>>
95%
70721
88%
**66
100%
Vihtavuori N160
<<locked>>
97%
69343
87%
**31
100%
Vihtavuori N165
<<locked>>
97%
49516
62%
**59
97%
Vihtavuori N530
<<locked>>
86%
71489
89%
**82
100%
Vihtavuori N540
<<locked>>
90%
71185
89%
**56
100%
Vihtavuori N550
<<locked>>
97%
68443
86%
**35
100%
Vihtavuori N555
<<locked>>
97%
54360
68%
**00
100%
Vihtavuori N560
<<locked>>
97%
53780
67%
**36
96%
[Vihtavuori N565]*
<<locked>>
97%
43656
55%
**43
94%
Winchester 6.5 StaBALL
<<locked>>
97%
69966
88%
**99
100%
Winchester 748
<<locked>>
85%
71417
89%
**25
100%
Winchester 760 👍
<<locked>>
97%
70953
89%
**14
100%
Winchester StaBALL HD
<<locked>>
97%
42308
53%
**71
100%
Winchester StaBALL Match
<<locked>>
88%
71620
90%
**28
100%
Winchester Supreme 780
<<locked>>
97%
53316
67%
**28
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59799
75%
**01
101%
ADI AR 2206H
<<locked>>
81%
58755
74%
**74
100%
ADI AR 2208
<<locked>>
81%
49835
62%
**20
100%
[ADI AR 2209]*
<<locked>>
81%
35244
44%
**93
92%
[ADI AR 2213]*
<<locked>>
86%
36912
46%
**52
90%
[ADI AR 2225]*
<<locked>>
93%
31111
39%
**31
90%
ADI Benchmark 8208
<<locked>>
81%
60713
76%
**64
100%
Accurate 2015
<<locked>>
81%
63295
79%
**95
100%
Accurate 2495
<<locked>>
81%
57522
72%
**53
100%
Accurate 2520
<<locked>>
81%
64875
81%
**04
100%
Accurate 2700
<<locked>>
81%
53795
67%
**56
98%
[Accurate 3100]*
<<locked>>
81%
31749
40%
**95
94%
Accurate 4064
<<locked>>
81%
54462
68%
**62
100%
Accurate 4350
<<locked>>
81%
42250
53%
**44
99%
[Accurate MAGPRO]*
<<locked>>
88%
39204
49%
**48
90%
Alliant AR-Comp
<<locked>>
81%
62758
79%
**25
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
55390
69%
**49
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
51140
64%
**56
100%
Alliant Reloder-15
<<locked>>
81%
54317
68%
**22
100%
Alliant Reloder-16
<<locked>>
81%
39958
50%
**41
99%
Alliant Reloder-17
<<locked>>
81%
45005
56%
**66
100%
[Alliant Reloder-19]*
<<locked>>
81%
35186
44%
**93
92%
[Alliant Reloder-22]*
<<locked>>
82%
32271
40%
**57
90%
Alliant Reloder-23
<<locked>>
81%
30255
38%
**18
97%
[Alliant Reloder-25]*
<<locked>>
81%
26861
34%
**06
90%
Alliant Reloder-26
<<locked>>
81%
32285
40%
**30
96%
Baschieri & Pellagri 107
<<locked>>
81%
58378
73%
**94
100%
[Baschieri & Pellagri 109]*
<<locked>>
94%
47384
59%
**00
90%
[Bofors RP15]*
<<locked>>
84%
32053
40%
**54
90%
Bofors RP3
<<locked>>
81%
51677
65%
**72
100%
[Bofors RP30]*
<<locked>>
93%
34490
43%
**46
90%
[Bofors RP5]*
<<locked>>
82%
32271
40%
**57
90%
Bofors RP7
<<locked>>
81%
45455
57%
**48
97%
Hodgdon BL-C2
<<locked>>
81%
61206
77%
**97
100%
Hodgdon Benchmark
<<locked>>
81%
61598
77%
**31
100%
[Hodgdon H1000]*
<<locked>>
92%
35810
45%
**10
90%
Hodgdon H380
<<locked>>
81%
52040
65%
**82
100%
Hodgdon H414
<<locked>>
81%
43062
54%
**77
97%
Hodgdon H4350
<<locked>>
81%
45934
57%
**90
96%
[Hodgdon H4831]*
<<locked>>
85%
37869
47%
**36
90%
[Hodgdon H4831 SC]*
<<locked>>
85%
37869
47%
**36
90%
Hodgdon H4895
<<locked>>
81%
59408
74%
**84
100%
Hodgdon Hybrid 100V
<<locked>>
81%
37623
47%
**36
99%
Hodgdon LEVERevolution
<<locked>>
81%
55912
70%
**64
100%
[Hodgdon Retumbo]*
<<locked>>
90%
33649
42%
**46
90%
Hodgdon Superformance
<<locked>>
81%
42206
53%
**90
96%
Hodgdon TrailBoss
<<locked>>
81%
28268
35%
**94
100%
Hodgdon VARGET
<<locked>>
81%
56536
71%
**25
100%
IMR 3031
<<locked>>
81%
60394
76%
**51
100%
IMR 4064
<<locked>>
81%
52330
65%
**53
100%
IMR 4166 Enduron
<<locked>>
81%
54578
68%
**85
99%
IMR 4350
<<locked>>
81%
40712
51%
**72
96%
IMR 4451 Enduron
<<locked>>
81%
46514
58%
**67
98%
IMR 4831
<<locked>>
81%
40176
50%
**92
99%
IMR 4895
<<locked>>
81%
55608
70%
**54
100%
[IMR 4955 Enduron]*
<<locked>>
82%
36521
46%
**70
90%
[IMR 7828 SSC]*
<<locked>>
87%
36651
46%
**62
90%
IMR 8208 XBR
<<locked>>
81%
60713
76%
**64
100%
Lovex D073.6
<<locked>>
81%
59988
75%
**51
100%
Lovex S060
<<locked>>
81%
57014
71%
**89
100%
Lovex S062
<<locked>>
81%
53011
66%
**62
100%
Lovex S065
<<locked>>
81%
44483
56%
**25
98%
Lovex S070
<<locked>>
81%
42641
53%
**08
97%
[Lovex S071]*
<<locked>>
81%
27673
35%
**77
92%
Norma 201
<<locked>>
81%
57856
72%
**15
100%
Norma 202
<<locked>>
81%
58450
73%
**15
100%
Norma 203B
<<locked>>
81%
53461
67%
**05
100%
[Norma 204]*
<<locked>>
81%
40176
50%
**98
94%
[Norma MRP]*
<<locked>>
81%
32518
41%
**93
92%
Norma URP
<<locked>>
81%
40988
51%
**25
99%
Ramshot Big Game
<<locked>>
81%
54027
68%
**38
100%
[Ramshot Grand]*
<<locked>>
87%
36405
46%
**59
90%
Ramshot Hunter
<<locked>>
81%
39595
50%
**08
97%
[Ramshot Magnum]*
<<locked>>
86%
31778
40%
**28
90%
Ramshot TAC
<<locked>>
81%
60698
76%
**97
100%
Ramshot Wild Boar
<<locked>>
81%
61221
77%
**13
100%
Ramshot X-Terminator
<<locked>>
81%
64672
81%
**17
100%
ReloadSwiss RS 14
<<locked>>
81%
28863
36%
**34
100%
ReloadSwiss RS 50
<<locked>>
81%
51547
64%
**62
99%
ReloadSwiss RS 52
<<locked>>
81%
58523
73%
**40
100%
ReloadSwiss RS 60
<<locked>>
81%
47558
60%
**12
100%
ReloadSwiss RS 62
<<locked>>
81%
41423
52%
**61
99%
ReloadSwiss RS 70
<<locked>>
81%
39813
50%
**61
98%
[ReloadSwiss RS 76]*
<<locked>>
88%
31531
39%
**77
90%
Rottweil R 901
<<locked>>
81%
62627
78%
**44
100%
Rottweil R 902
<<locked>>
81%
55013
69%
**69
100%
Rottweil R 903
<<locked>>
81%
48994
61%
**23
100%
[Rottweil R 904]*
<<locked>>
81%
36535
46%
**77
91%
[Rottweil R 905]*
<<locked>>
81%
34287
43%
**80
92%
Rottweil R 907
<<locked>>
81%
45455
57%
**48
97%
SNPE Vectan SP 11
<<locked>>
81%
49255
62%
**66
100%
SNPE Vectan SP 7
<<locked>>
81%
60089
75%
**77
100%
SNPE Vectan SP 9
<<locked>>
81%
57058
71%
**41
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
57856
72%
**40
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49197
62%
**12
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43366
54%
**66
97%
[SNPE Vectan Tubal 8000]*
<<locked>>
81%
33968
43%
**70
92%
Shooters World Long Rifle
<<locked>>
81%
44483
56%
**25
98%
Shooters World Match Rifle
<<locked>>
81%
59988
75%
**51
100%
Shooters World Precision
<<locked>>
81%
53011
66%
**62
100%
Shooters World SW4350
<<locked>>
81%
42641
53%
**08
97%
Somchem S321
<<locked>>
81%
66601
83%
**46
100%
Somchem S335
<<locked>>
81%
58131
73%
**46
100%
Somchem S341
<<locked>>
81%
59538
74%
**61
100%
Somchem S355
<<locked>>
81%
49139
61%
**20
100%
[Somchem S361]*
<<locked>>
81%
37434
47%
**74
90%
Somchem S365
<<locked>>
81%
37681
47%
**92
100%
[Somchem S385]*
<<locked>>
81%
35157
44%
**70
93%
Vihtavuori N130
<<locked>>
81%
64397
81%
**76
100%
Vihtavuori N133
<<locked>>
81%
58189
73%
**17
100%
Vihtavuori N135
<<locked>>
81%
52750
66%
**97
100%
Vihtavuori N140
<<locked>>
81%
55027
69%
**36
100%
Vihtavuori N150
<<locked>>
81%
46441
58%
**38
100%
Vihtavuori N160
<<locked>>
81%
42496
53%
**21
99%
[Vihtavuori N165]*
<<locked>>
81%
30501
38%
**46
90%
Vihtavuori N530
<<locked>>
81%
61337
77%
**64
100%
Vihtavuori N540
<<locked>>
81%
53606
67%
**46
100%
Vihtavuori N550
<<locked>>
81%
41989
53%
**28
99%
Vihtavuori N555
<<locked>>
81%
33678
42%
**03
97%
[Vihtavuori N560]*
<<locked>>
85%
37695
47%
**08
90%
[Vihtavuori N565]*
<<locked>>
90%
35723
45%
**62
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41394
52%
**92
100%
Winchester 748
<<locked>>
81%
62410
78%
**13
100%
Winchester 760
<<locked>>
81%
43062
54%
**77
97%
Winchester StaBALL HD
<<locked>>
81%
27224
34%
**08
97%
Winchester StaBALL Match
<<locked>>
81%
57130
71%
**51
100%
[Winchester Supreme 780]*
<<locked>>
81%
32024
40%
**92
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

bottom of page