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Load data for 7 mm Backcountry + .284 | 125gr | Lehigh Defense Controlled Chaos

Recommended Powder(s):

7 mm Backcountry + .284 | 125gr | Lehigh Defense Controlled Chaos

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 125gr | Lehigh Defense Controlled Chaos
Manufacturer SKU:
Bullet Weight:
125gr | 8.1g
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_B11014_C991
Last updated:
2026-07-16
Recommended Twist Rate:
1:10 - 1:9

Load data for 248 loads in caliber 7 mm Backcountry with .284 | 125gr | Lehigh Defense Controlled Chaos bullet and 124 powder(s). 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>>
93%
71475
89%
**62
100%
ADI AR 2206H
<<locked>>
93%
71054
89%
**17
100%
ADI AR 2207
<<locked>>
83%
71866
90%
**30
100%
ADI AR 2208
<<locked>>
97%
67631
85%
**51
100%
[ADI AR 2209]*
<<locked>>
97%
46224
58%
**72
93%
ADI AR 2219
<<locked>>
84%
71127
89%
**51
100%
ADI Benchmark 8208
<<locked>>
92%
70721
88%
**71
100%
Accurate 2015
<<locked>>
91%
71533
90%
**82
100%
Accurate 2460
<<locked>>
87%
71272
89%
**32
100%
Accurate 2495
<<locked>>
95%
71721
90%
**15
100%
Accurate 2520
<<locked>>
90%
71112
89%
**64
100%
Accurate 2700
<<locked>>
95%
71373
89%
**61
99%
Accurate 3100
<<locked>>
97%
39349
49%
**18
95%
Accurate 4064
<<locked>>
97%
70503
88%
**61
100%
Accurate 4350
<<locked>>
97%
55158
69%
**40
99%
Alliant AR-Comp
<<locked>>
91%
71098
89%
**09
100%
Alliant Power Pro 1200-R
<<locked>>
87%
71721
90%
**86
100%
Alliant Power Pro 2000-MR 👍
<<locked>>
94%
71315
89%
**48
100%
Alliant Reloder- TS 15.5
<<locked>>
97%
68139
85%
**84
100%
Alliant Reloder-10x
<<locked>>
87%
71605
90%
**96
100%
Alliant Reloder-15 👍
<<locked>>
96%
71402
89%
**37
100%
Alliant Reloder-16
<<locked>>
97%
52678
66%
**46
100%
Alliant Reloder-17 👍
<<locked>>
97%
61772
77%
**04
100%
[Alliant Reloder-19]*
<<locked>>
97%
46006
58%
**82
93%
Alliant Reloder-23
<<locked>>
97%
37666
47%
**48
98%
Alliant Reloder-26
<<locked>>
97%
41597
52%
**02
97%
Baschieri & Pellagri 106
<<locked>>
86%
71808
90%
**43
100%
Baschieri & Pellagri 107
<<locked>>
93%
71591
90%
**37
100%
Bofors RP3
<<locked>>
97%
69488
87%
**94
100%
Bofors RP7
<<locked>>
97%
60553
76%
**59
98%
Hodgdon BL-C2
<<locked>>
91%
71315
89%
**10
100%
Hodgdon Benchmark
<<locked>>
91%
71460
89%
**35
100%
Hodgdon CFE223
<<locked>>
88%
71069
89%
**92
100%
Hodgdon H322
<<locked>>
87%
71127
89%
**51
100%
Hodgdon H335
<<locked>>
86%
70938
89%
**58
100%
Hodgdon H380 👍
<<locked>>
97%
70459
88%
**17
100%
Hodgdon H414
<<locked>>
97%
58175
73%
**09
98%
Hodgdon H4198
<<locked>>
83%
71388
89%
**79
100%
Hodgdon H4350
<<locked>>
97%
62004
78%
**19
98%
Hodgdon H4895
<<locked>>
92%
70909
89%
**14
100%
Hodgdon Hybrid 100V
<<locked>>
97%
49110
61%
**12
100%
Hodgdon LEVERevolution
<<locked>>
94%
71359
89%
**50
100%
Hodgdon Superformance
<<locked>>
97%
58813
74%
**38
98%
Hodgdon TrailBoss
<<locked>>
97%
34127
43%
**00
100%
Hodgdon VARGET
<<locked>>
94%
71446
89%
**04
100%
IMR 3031
<<locked>>
92%
71083
89%
**81
100%
IMR 4064
<<locked>>
97%
71359
89%
**91
100%
IMR 4166 Enduron
<<locked>>
95%
71475
89%
**91
99%
IMR 4198
<<locked>>
88%
70851
89%
**46
100%
IMR 4350
<<locked>>
97%
53548
67%
**61
97%
IMR 4451 Enduron
<<locked>>
97%
62410
78%
**92
99%
IMR 4831
<<locked>>
97%
51619
65%
**68
99%
IMR 4895
<<locked>>
95%
71054
89%
**50
100%
IMR 8208 XBR
<<locked>>
92%
70721
88%
**71
100%
Lovex D073.5
<<locked>>
87%
71446
89%
**48
100%
Lovex D073.6
<<locked>>
93%
71315
89%
**78
100%
Lovex S060
<<locked>>
94%
71286
89%
**51
100%
Lovex S062
<<locked>>
97%
70996
89%
**81
100%
Lovex S065
<<locked>>
97%
58291
73%
**30
99%
Lovex S070
<<locked>>
97%
55187
69%
**91
98%
Norma 200
<<locked>>
84%
71243
89%
**69
100%
Norma 201
<<locked>>
94%
70866
89%
**71
100%
Norma 202
<<locked>>
94%
71895
90%
**71
100%
Norma 203B
<<locked>>
96%
71431
89%
**40
100%
Norma 204
<<locked>>
97%
54636
68%
**14
96%
[Norma MRP]*
<<locked>>
97%
41858
52%
**66
94%
Norma URP
<<locked>>
97%
53563
67%
**23
99%
Ramshot Big Game
<<locked>>
95%
71533
90%
**50
100%
Ramshot Hunter
<<locked>>
97%
52910
66%
**20
98%
Ramshot TAC
<<locked>>
91%
71301
89%
**04
100%
Ramshot Wild Boar
<<locked>>
91%
71533
90%
**27
100%
Ramshot X-Terminator
<<locked>>
89%
71286
89%
**64
100%
ReloadSwiss RS 14
<<locked>>
96%
34026
43%
**32
100%
ReloadSwiss RS 40
<<locked>>
88%
71054
89%
**61
100%
ReloadSwiss RS 50 👍
<<locked>>
97%
70996
89%
**07
100%
ReloadSwiss RS 52
<<locked>>
93%
71460
89%
**99
100%
ReloadSwiss RS 60
<<locked>>
97%
66094
83%
**66
100%
ReloadSwiss RS 62
<<locked>>
97%
54505
68%
**59
99%
ReloadSwiss RS 70
<<locked>>
97%
54389
68%
**89
99%
Rottweil R 901
<<locked>>
92%
71678
90%
**45
100%
Rottweil R 902
<<locked>>
96%
71649
90%
**71
100%
Rottweil R 903
<<locked>>
97%
64266
80%
**22
100%
[Rottweil R 904]*
<<locked>>
97%
47921
60%
**56
92%
[Rottweil R 905]*
<<locked>>
97%
44672
56%
**53
93%
Rottweil R 907
<<locked>>
97%
60553
76%
**59
98%
SNPE Vectan BA6 1/2
<<locked>>
87%
71910
90%
**77
100%
SNPE Vectan SP 10
<<locked>>
84%
71460
89%
**68
100%
SNPE Vectan SP 11
<<locked>>
97%
67486
84%
**01
100%
SNPE Vectan SP 3
<<locked>>
87%
71547
90%
**15
100%
SNPE Vectan SP 7
<<locked>>
92%
71663
90%
**01
100%
SNPE Vectan SP 9
<<locked>>
94%
71866
90%
**17
100%
SNPE Vectan Tubal 3000
<<locked>>
93%
70967
89%
**73
100%
SNPE Vectan Tubal 5000
<<locked>>
97%
66688
83%
**14
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
58088
73%
**64
98%
[SNPE Vectan Tubal 8000]*
<<locked>>
97%
44251
55%
**43
93%
Shooters World Long Rifle
<<locked>>
97%
58291
73%
**30
99%
Shooters World Match Rifle
<<locked>>
93%
71315
89%
**78
100%
Shooters World Precision
<<locked>>
97%
70996
89%
**81
100%
Shooters World SW4350
<<locked>>
97%
55187
69%
**91
98%
Shooters World Tactical Rifle
<<locked>>
86%
70953
89%
**38
100%
Somchem S321
<<locked>>
89%
71417
89%
**94
100%
Somchem S335
<<locked>>
94%
71344
89%
**82
100%
Somchem S341
<<locked>>
92%
71112
89%
**87
100%
Somchem S355
<<locked>>
97%
64745
81%
**32
100%
[Somchem S361]*
<<locked>>
97%
50082
63%
**53
92%
Somchem S365
<<locked>>
97%
48051
60%
**64
100%
[Somchem S385]*
<<locked>>
97%
44788
56%
**23
94%
Vihtavuori N120
<<locked>>
83%
71156
89%
**68
100%
Vihtavuori N130
<<locked>>
90%
71678
90%
**43
100%
Vihtavuori N133
<<locked>>
93%
71054
89%
**50
100%
Vihtavuori N135
<<locked>>
97%
70242
88%
**96
100%
Vihtavuori N140
<<locked>>
95%
71127
89%
**15
100%
Vihtavuori N150
<<locked>>
97%
62105
78%
**36
100%
Vihtavuori N160
<<locked>>
97%
57014
71%
**33
100%
Vihtavuori N530
<<locked>>
91%
71620
90%
**71
100%
Vihtavuori N540
<<locked>>
96%
71620
90%
**51
100%
Vihtavuori N550
<<locked>>
97%
55303
69%
**20
99%
Vihtavuori N555
<<locked>>
97%
41452
52%
**30
98%
Winchester 6.5 StaBALL
<<locked>>
97%
57116
71%
**07
100%
Winchester 748
<<locked>>
91%
71881
90%
**20
100%
Winchester 760
<<locked>>
97%
57856
72%
**96
98%
Winchester StaBALL HD
<<locked>>
97%
33489
42%
**22
97%
Winchester StaBALL Match
<<locked>>
93%
71431
89%
**20
100%
[Winchester Supreme 780]*
<<locked>>
97%
41785
52%
**41
92%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59219
74%
**98
101%
ADI AR 2206H
<<locked>>
81%
48443
61%
**72
99%
ADI AR 2207
<<locked>>
81%
67240
84%
**87
100%
ADI AR 2208
<<locked>>
81%
40944
51%
**08
98%
[ADI AR 2209]*
<<locked>>
91%
39247
49%
**15
90%
ADI AR 2219
<<locked>>
81%
63541
80%
**59
100%
ADI Benchmark 8208
<<locked>>
81%
50691
63%
**86
100%
Accurate 2015
<<locked>>
81%
52344
65%
**36
100%
Accurate 2460
<<locked>>
81%
57682
72%
**61
100%
Accurate 2495
<<locked>>
81%
44614
56%
**51
100%
Accurate 2520
<<locked>>
81%
52823
66%
**22
100%
[Accurate 2700]*
<<locked>>
81%
43976
55%
**18
94%
[Accurate 3100]*
<<locked>>
90%
30560
38%
**95
90%
Accurate 4064
<<locked>>
81%
41974
53%
**35
100%
[Accurate 4350]*
<<locked>>
81%
31053
39%
**38
93%
Alliant AR-Comp
<<locked>>
81%
51300
64%
**59
100%
Alliant Power Pro 1200-R
<<locked>>
81%
59683
75%
**22
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
44599
56%
**09
98%
Alliant Reloder- TS 15.5
<<locked>>
81%
41031
51%
**31
99%
Alliant Reloder-10x
<<locked>>
81%
58755
74%
**41
100%
Alliant Reloder-15
<<locked>>
81%
43918
55%
**00
98%
[Alliant Reloder-16]*
<<locked>>
81%
31517
39%
**51
93%
Alliant Reloder-17
<<locked>>
81%
35549
44%
**95
97%
[Alliant Reloder-19]*
<<locked>>
91%
37985
48%
**89
90%
[Alliant Reloder-23]*
<<locked>>
84%
24947
31%
**48
90%
[Alliant Reloder-26]*
<<locked>>
87%
29718
37%
**57
90%
Baschieri & Pellagri 106
<<locked>>
81%
60829
76%
**18
100%
Baschieri & Pellagri 107
<<locked>>
81%
48124
60%
**86
99%
Bofors RP3
<<locked>>
81%
40437
51%
**31
99%
[Bofors RP7]*
<<locked>>
81%
36405
46%
**80
91%
Hodgdon BL-C2
<<locked>>
81%
49806
62%
**99
100%
Hodgdon Benchmark
<<locked>>
81%
52286
65%
**72
100%
Hodgdon CFE223
<<locked>>
81%
55477
69%
**79
100%
Hodgdon H322
<<locked>>
81%
58494
73%
**94
100%
Hodgdon H335
<<locked>>
81%
59553
75%
**14
100%
Hodgdon H380
<<locked>>
81%
41365
52%
**38
97%
[Hodgdon H414]*
<<locked>>
81%
33591
42%
**87
91%
Hodgdon H4198
<<locked>>
81%
67167
84%
**33
100%
[Hodgdon H4350]*
<<locked>>
81%
36782
46%
**30
90%
Hodgdon H4895
<<locked>>
81%
48907
61%
**89
100%
[Hodgdon Hybrid 100V]*
<<locked>>
81%
28790
36%
**39
94%
Hodgdon LEVERevolution
<<locked>>
81%
45005
56%
**49
100%
[Hodgdon Superformance]*
<<locked>>
83%
35128
44%
**46
90%
Hodgdon TrailBoss
<<locked>>
81%
26774
33%
**32
100%
Hodgdon VARGET
<<locked>>
81%
46992
59%
**33
99%
IMR 3031
<<locked>>
81%
48907
61%
**86
100%
IMR 4064
<<locked>>
81%
43047
54%
**48
98%
IMR 4166 Enduron
<<locked>>
81%
45774
57%
**71
95%
IMR 4198
<<locked>>
81%
58465
73%
**95
100%
[IMR 4350]*
<<locked>>
83%
34389
43%
**48
90%
[IMR 4451 Enduron]*
<<locked>>
81%
37985
48%
**23
93%
[IMR 4831]*
<<locked>>
81%
30327
38%
**92
93%
IMR 4895
<<locked>>
81%
45063
56%
**40
99%
IMR 8208 XBR
<<locked>>
81%
50691
63%
**86
100%
Lovex D073.5
<<locked>>
81%
58044
73%
**81
100%
Lovex D073.6
<<locked>>
81%
47950
60%
**49
100%
Lovex S060
<<locked>>
81%
48225
60%
**10
99%
Lovex S062
<<locked>>
81%
42960
54%
**44
99%
[Lovex S065]*
<<locked>>
81%
35215
44%
**64
93%
[Lovex S070]*
<<locked>>
81%
33243
42%
**31
91%
Norma 200
<<locked>>
81%
66007
83%
**07
100%
Norma 201
<<locked>>
81%
47369
59%
**23
100%
Norma 202
<<locked>>
81%
47921
60%
**33
100%
Norma 203B
<<locked>>
81%
43163
54%
**84
99%
[Norma 204]*
<<locked>>
87%
38392
48%
**79
90%
[Norma MRP]*
<<locked>>
92%
34809
44%
**85
90%
[Norma URP]*
<<locked>>
81%
31531
39%
**44
93%
Ramshot Big Game
<<locked>>
81%
43163
54%
**04
99%
[Ramshot Hunter]*
<<locked>>
81%
31256
39%
**25
90%
Ramshot TAC
<<locked>>
81%
50676
63%
**89
98%
Ramshot Wild Boar
<<locked>>
81%
50343
63%
**09
100%
Ramshot X-Terminator
<<locked>>
81%
54955
69%
**41
100%
ReloadSwiss RS 14
<<locked>>
81%
27354
34%
**78
100%
ReloadSwiss RS 40
<<locked>>
81%
56811
71%
**71
100%
ReloadSwiss RS 50
<<locked>>
81%
41771
52%
**15
95%
ReloadSwiss RS 52
<<locked>>
81%
46601
58%
**18
99%
ReloadSwiss RS 60
<<locked>>
81%
37840
47%
**67
100%
[ReloadSwiss RS 62]*
<<locked>>
81%
30850
39%
**48
92%
[ReloadSwiss RS 70]*
<<locked>>
81%
31140
39%
**44
91%
Rottweil R 901
<<locked>>
81%
51271
64%
**69
100%
Rottweil R 902
<<locked>>
81%
44759
56%
**71
100%
Rottweil R 903
<<locked>>
81%
37898
47%
**66
98%
[Rottweil R 904]*
<<locked>>
92%
41336
52%
**22
90%
[Rottweil R 905]*
<<locked>>
92%
37623
47%
**95
90%
[Rottweil R 907]*
<<locked>>
81%
36405
46%
**80
91%
SNPE Vectan BA6 1/2
<<locked>>
81%
62787
79%
**76
100%
SNPE Vectan SP 10
<<locked>>
81%
63904
80%
**76
100%
SNPE Vectan SP 11
<<locked>>
81%
39117
49%
**28
98%
SNPE Vectan SP 3
<<locked>>
81%
59683
75%
**68
100%
SNPE Vectan SP 7
<<locked>>
81%
49168
62%
**66
98%
SNPE Vectan SP 9
<<locked>>
81%
46876
59%
**40
99%
SNPE Vectan Tubal 3000
<<locked>>
81%
48501
61%
**67
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
40437
51%
**17
100%
[SNPE Vectan Tubal 7000]*
<<locked>>
81%
34534
43%
**05
91%
[SNPE Vectan Tubal 8000]*
<<locked>>
92%
37289
47%
**85
90%
[Shooters World Long Rifle]*
<<locked>>
81%
35215
44%
**64
93%
Shooters World Match Rifle
<<locked>>
81%
47950
60%
**49
100%
Shooters World Precision
<<locked>>
81%
42960
54%
**44
99%
[Shooters World SW4350]*
<<locked>>
81%
33243
42%
**31
91%
Shooters World Tactical Rifle
<<locked>>
81%
60263
75%
**04
100%
Somchem S321
<<locked>>
81%
55448
69%
**77
100%
Somchem S335
<<locked>>
81%
48283
60%
**67
100%
Somchem S341
<<locked>>
81%
49081
61%
**63
99%
Somchem S355
<<locked>>
81%
38812
49%
**82
98%
[Somchem S361]*
<<locked>>
94%
44701
56%
**58
90%
Somchem S365
<<locked>>
81%
28123
35%
**79
95%
[Somchem S385]*
<<locked>>
89%
34722
43%
**94
90%
Vihtavuori N120
<<locked>>
81%
66964
84%
**22
100%
Vihtavuori N130
<<locked>>
81%
54621
68%
**33
100%
Vihtavuori N133
<<locked>>
81%
48979
61%
**61
100%
Vihtavuori N135
<<locked>>
81%
42293
53%
**05
100%
Vihtavuori N140
<<locked>>
81%
45150
56%
**51
100%
Vihtavuori N150
<<locked>>
81%
36985
46%
**03
99%
[Vihtavuori N160]*
<<locked>>
81%
32996
41%
**54
94%
Vihtavuori N530
<<locked>>
81%
50705
63%
**79
100%
Vihtavuori N540
<<locked>>
81%
43656
55%
**44
100%
[Vihtavuori N550]*
<<locked>>
81%
32460
41%
**48
93%
[Vihtavuori N555]*
<<locked>>
83%
25324
32%
**87
90%
Winchester 6.5 StaBALL
<<locked>>
81%
32895
41%
**21
96%
Winchester 748
<<locked>>
81%
50952
64%
**31
100%
[Winchester 760]*
<<locked>>
81%
33823
42%
**94
91%
[Winchester StaBALL HD]*
<<locked>>
89%
25744
32%
**33
90%
Winchester StaBALL Match
<<locked>>
81%
46847
59%
**49
100%
[Winchester Supreme 780]*
<<locked>>
94%
38276
48%
**66
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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