top of page

Load data for 7 mm Backcountry + .284 | 140gr | Speer TBBC

Recommended Powder(s): Hodgdon H414, IMR 4451 Enduron, ReloadSwiss RS 50, ReloadSwiss RS 70, Winchester 760

7 mm Backcountry + .284 | 140gr | Speer TBBC

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 140gr | Speer TBBC
Manufacturer SKU:
o_1745
Bullet Weight:
140gr | 9.1g
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_B6122_C991
Last updated:
2026-07-13

Load data for 262 loads in caliber 7 mm Backcountry with .284 | 140gr | Speer TBBC bullet and 131 powders such as Hodgdon H414, IMR 4451 Enduron, ReloadSwiss RS 50, 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%
71170
89%
**51
101%
ADI AR 2206H
<<locked>>
89%
70924
89%
**50
100%
ADI AR 2208
<<locked>>
95%
71446
89%
**50
100%
ADI AR 2209
<<locked>>
97%
53243
67%
**86
97%
[ADI AR 2213]*
<<locked>>
97%
47848
60%
**04
94%
ADI Benchmark 8208
<<locked>>
88%
71446
89%
**20
100%
Accurate 2015
<<locked>>
88%
71866
90%
**15
100%
Accurate 2460
<<locked>>
84%
71272
89%
**64
100%
Accurate 2495
<<locked>>
91%
71721
90%
**51
100%
Accurate 2520
<<locked>>
86%
71330
89%
**00
100%
Accurate 2700
<<locked>>
92%
70677
88%
**07
100%
Accurate 3100
<<locked>>
97%
46456
58%
**25
98%
Accurate 4064
<<locked>>
93%
71678
90%
**04
100%
Accurate 4350
<<locked>>
97%
63701
80%
**10
100%
[Accurate MAGPRO]*
<<locked>>
97%
48022
60%
**46
93%
Alliant AR-Comp
<<locked>>
87%
71431
89%
**41
100%
Alliant Power Pro 2000-MR
<<locked>>
91%
71794
90%
**87
100%
Alliant Reloder- TS 15.5
<<locked>>
94%
70982
89%
**50
100%
Alliant Reloder-10x
<<locked>>
84%
71591
90%
**35
100%
Alliant Reloder-15
<<locked>>
92%
71272
89%
**79
100%
Alliant Reloder-16
<<locked>>
97%
59596
75%
**04
100%
Alliant Reloder-17
<<locked>>
96%
70634
88%
**45
100%
Alliant Reloder-19
<<locked>>
97%
52286
65%
**69
97%
Alliant Reloder-22
<<locked>>
97%
46586
58%
**00
96%
Alliant Reloder-23
<<locked>>
97%
43642
55%
**44
100%
Alliant Reloder-25
<<locked>>
97%
38363
48%
**43
96%
Alliant Reloder-26
<<locked>>
97%
50067
63%
**45
100%
Baschieri & Pellagri 106
<<locked>>
83%
71808
90%
**89
100%
Baschieri & Pellagri 107
<<locked>>
89%
71605
90%
**76
100%
[Bofors RP15]*
<<locked>>
97%
42728
53%
**18
94%
Bofors RP3
<<locked>>
93%
70924
89%
**50
100%
Bofors RP5
<<locked>>
97%
46586
58%
**00
96%
Bofors RP7
<<locked>>
97%
67602
85%
**14
100%
Hodgdon BL-C2
<<locked>>
88%
71359
89%
**40
100%
Hodgdon Benchmark
<<locked>>
88%
71707
90%
**81
100%
Hodgdon CFE223
<<locked>>
84%
71025
89%
**32
100%
Hodgdon H322
<<locked>>
84%
71330
89%
**87
100%
Hodgdon H380
<<locked>>
93%
71576
90%
**79
100%
Hodgdon H414 👍
<<locked>>
97%
65934
83%
**73
100%
Hodgdon H4350
<<locked>>
97%
70329
88%
**86
99%
[Hodgdon H4831]*
<<locked>>
97%
51503
64%
**13
94%
[Hodgdon H4831 SC]*
<<locked>>
97%
50183
63%
**97
94%
Hodgdon H4895
<<locked>>
89%
71736
90%
**59
100%
Hodgdon Hybrid 100V
<<locked>>
97%
56623
71%
**76
100%
Hodgdon LEVERevolution
<<locked>>
90%
70953
89%
**82
100%
Hodgdon Superformance
<<locked>>
97%
68545
86%
**25
100%
Hodgdon TrailBoss
<<locked>>
96%
34243
43%
**01
100%
Hodgdon VARGET
<<locked>>
90%
70924
89%
**36
100%
IMR 3031
<<locked>>
89%
71286
89%
**14
100%
IMR 4064
<<locked>>
93%
70938
89%
**27
100%
IMR 4166 Enduron
<<locked>>
92%
71489
89%
**33
100%
IMR 4198
<<locked>>
84%
70880
89%
**82
100%
IMR 4350
<<locked>>
97%
60974
76%
**41
99%
IMR 4451 Enduron 👍
<<locked>>
97%
70140
88%
**50
100%
IMR 4831
<<locked>>
97%
60220
75%
**45
100%
IMR 4895
<<locked>>
91%
70982
89%
**79
100%
IMR 4955 Enduron
<<locked>>
97%
52953
66%
**10
95%
[IMR 7828 SSC]*
<<locked>>
97%
45716
57%
**67
93%
IMR 8208 XBR
<<locked>>
88%
71446
89%
**20
100%
Lovex D073.5
<<locked>>
84%
71663
90%
**87
100%
Lovex D073.6
<<locked>>
89%
70648
88%
**07
100%
Lovex S060
<<locked>>
91%
71504
89%
**00
100%
Lovex S062
<<locked>>
93%
71127
89%
**20
100%
Lovex S065
<<locked>>
97%
65456
82%
**81
100%
Lovex S070
<<locked>>
97%
63179
79%
**71
100%
Lovex S071
<<locked>>
97%
38508
48%
**64
96%
Norma 201
<<locked>>
91%
71779
90%
**23
100%
Norma 202
<<locked>>
90%
71301
89%
**94
100%
Norma 203B
<<locked>>
93%
71663
90%
**73
100%
Norma 204
<<locked>>
97%
62381
78%
**04
98%
Norma MRP
<<locked>>
97%
49385
62%
**95
98%
Norma URP
<<locked>>
97%
61902
77%
**00
100%
Ramshot Big Game
<<locked>>
92%
71765
90%
**89
100%
[Ramshot Grand]*
<<locked>>
97%
45469
57%
**81
94%
Ramshot Hunter
<<locked>>
97%
60727
76%
**91
100%
[Ramshot Magnum]*
<<locked>>
97%
40147
50%
**43
94%
Ramshot TAC
<<locked>>
88%
71243
89%
**46
100%
Ramshot Wild Boar
<<locked>>
88%
70750
89%
**46
100%
Ramshot X-Terminator
<<locked>>
86%
71852
90%
**17
100%
ReloadSwiss RS 14
<<locked>>
97%
35375
44%
**54
100%
ReloadSwiss RS 40
<<locked>>
85%
71533
90%
**00
100%
ReloadSwiss RS 50 👍
<<locked>>
94%
71736
90%
**66
100%
ReloadSwiss RS 52
<<locked>>
89%
71257
89%
**28
100%
ReloadSwiss RS 60
<<locked>>
95%
71692
90%
**55
100%
ReloadSwiss RS 62
<<locked>>
97%
64194
80%
**46
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
63005
79%
**82
100%
[ReloadSwiss RS 76]*
<<locked>>
97%
37231
47%
**36
93%
Rottweil R 901
<<locked>>
88%
71170
89%
**77
100%
Rottweil R 902
<<locked>>
92%
71417
89%
**04
100%
Rottweil R 903
<<locked>>
96%
71591
90%
**50
100%
Rottweil R 904
<<locked>>
97%
55317
69%
**53
96%
Rottweil R 905
<<locked>>
97%
51576
65%
**56
97%
Rottweil R 907
<<locked>>
97%
67602
85%
**14
100%
SNPE Vectan BA6 1/2
<<locked>>
83%
70953
89%
**17
100%
SNPE Vectan SP 11
<<locked>>
95%
71678
90%
**92
100%
SNPE Vectan SP 3
<<locked>>
83%
70982
89%
**38
100%
SNPE Vectan SP 7
<<locked>>
88%
71663
90%
**50
100%
SNPE Vectan SP 9
<<locked>>
90%
71011
89%
**50
100%
SNPE Vectan Tubal 3000
<<locked>>
90%
71069
89%
**18
100%
SNPE Vectan Tubal 5000
<<locked>>
96%
71620
90%
**05
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
66050
83%
**38
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
51082
64%
**46
97%
Shooters World Long Rifle
<<locked>>
97%
65456
82%
**81
100%
Shooters World Match Rifle
<<locked>>
89%
70648
88%
**07
100%
Shooters World Precision
<<locked>>
93%
71127
89%
**20
100%
Shooters World SW4350
<<locked>>
97%
63179
79%
**71
100%
Somchem S321
<<locked>>
85%
71214
89%
**23
100%
Somchem S335
<<locked>>
90%
70938
89%
**18
100%
Somchem S341
<<locked>>
89%
71895
90%
**36
100%
Somchem S355
<<locked>>
96%
71417
89%
**43
100%
Somchem S361
<<locked>>
97%
57232
72%
**49
96%
Somchem S365
<<locked>>
97%
57319
72%
**45
100%
Somchem S385
<<locked>>
97%
52591
66%
**30
98%
Vihtavuori N130
<<locked>>
86%
70822
89%
**76
100%
Vihtavuori N133
<<locked>>
90%
71518
89%
**89
100%
Vihtavuori N135
<<locked>>
93%
71533
90%
**48
100%
Vihtavuori N140
<<locked>>
92%
71881
90%
**68
100%
Vihtavuori N150
<<locked>>
97%
70793
89%
**81
100%
Vihtavuori N160
<<locked>>
97%
64455
81%
**84
100%
Vihtavuori N165
<<locked>>
97%
45020
56%
**79
96%
Vihtavuori N530
<<locked>>
88%
71054
89%
**00
100%
Vihtavuori N540
<<locked>>
92%
71402
89%
**81
100%
Vihtavuori N550
<<locked>>
97%
63628
80%
**94
100%
Vihtavuori N555
<<locked>>
97%
49356
62%
**40
100%
[Vihtavuori N560]*
<<locked>>
97%
49690
62%
**76
94%
Winchester 6.5 StaBALL
<<locked>>
97%
65180
82%
**58
100%
Winchester 748
<<locked>>
87%
70880
89%
**36
100%
Winchester 760 👍
<<locked>>
97%
66471
83%
**76
100%
Winchester StaBALL HD
<<locked>>
97%
37275
47%
**81
100%
Winchester StaBALL Match
<<locked>>
90%
71373
89%
**53
100%
Winchester Supreme 780
<<locked>>
97%
48820
61%
**54
96%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59451
74%
**90
100%
ADI AR 2206H
<<locked>>
81%
54694
68%
**33
100%
ADI AR 2208
<<locked>>
81%
46369
58%
**72
99%
[ADI AR 2209]*
<<locked>>
83%
34490
43%
**75
90%
[ADI AR 2213]*
<<locked>>
91%
38812
49%
**97
90%
ADI Benchmark 8208
<<locked>>
81%
56826
71%
**33
100%
Accurate 2015
<<locked>>
81%
58682
73%
**67
100%
Accurate 2460
<<locked>>
81%
64905
81%
**92
100%
Accurate 2495
<<locked>>
81%
52025
65%
**08
100%
Accurate 2520
<<locked>>
81%
60350
76%
**69
100%
Accurate 2700
<<locked>>
81%
49719
62%
**02
97%
[Accurate 3100]*
<<locked>>
81%
27137
34%
**65
90%
Accurate 4064
<<locked>>
81%
48979
61%
**05
100%
Accurate 4350
<<locked>>
81%
37173
47%
**48
97%
[Accurate MAGPRO]*
<<locked>>
92%
40828
51%
**85
90%
Alliant AR-Comp
<<locked>>
81%
58740
74%
**94
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
51097
64%
**95
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
46528
58%
**02
100%
Alliant Reloder-10x
<<locked>>
81%
65253
82%
**56
100%
Alliant Reloder-15
<<locked>>
81%
50024
63%
**74
100%
Alliant Reloder-16
<<locked>>
81%
36260
45%
**64
97%
Alliant Reloder-17
<<locked>>
81%
41205
52%
**95
100%
[Alliant Reloder-19]*
<<locked>>
83%
33794
42%
**59
90%
[Alliant Reloder-22]*
<<locked>>
87%
33837
42%
**05
90%
[Alliant Reloder-23]*
<<locked>>
81%
26614
33%
**02
94%
[Alliant Reloder-25]*
<<locked>>
86%
27818
35%
**34
90%
[Alliant Reloder-26]*
<<locked>>
81%
28311
35%
**07
92%
Baschieri & Pellagri 106
<<locked>>
81%
66805
84%
**36
100%
Baschieri & Pellagri 107
<<locked>>
81%
54433
68%
**49
100%
[Bofors RP15]*
<<locked>>
90%
34243
43%
**08
90%
Bofors RP3
<<locked>>
81%
46818
59%
**08
100%
[Bofors RP5]*
<<locked>>
87%
33837
42%
**05
90%
Bofors RP7
<<locked>>
81%
41568
52%
**74
95%
Hodgdon BL-C2
<<locked>>
81%
56652
71%
**53
100%
Hodgdon Benchmark
<<locked>>
81%
58131
73%
**07
100%
Hodgdon CFE223
<<locked>>
81%
63628
80%
**36
100%
Hodgdon H322
<<locked>>
81%
64846
81%
**12
100%
Hodgdon H380
<<locked>>
81%
47529
59%
**22
99%
Hodgdon H414
<<locked>>
81%
39073
49%
**97
95%
[Hodgdon H4350]*
<<locked>>
81%
42061
53%
**23
94%
[Hodgdon H4831]*
<<locked>>
89%
39668
50%
**77
90%
[Hodgdon H4831 SC]*
<<locked>>
90%
39436
49%
**74
90%
Hodgdon H4895
<<locked>>
81%
55288
69%
**46
100%
Hodgdon Hybrid 100V
<<locked>>
81%
33794
42%
**59
98%
Hodgdon LEVERevolution
<<locked>>
81%
51866
65%
**20
100%
[Hodgdon Superformance]*
<<locked>>
81%
38334
48%
**10
94%
Hodgdon TrailBoss
<<locked>>
81%
27644
35%
**57
100%
Hodgdon VARGET
<<locked>>
81%
52982
66%
**90
100%
IMR 3031
<<locked>>
81%
55927
70%
**20
100%
IMR 4064
<<locked>>
81%
48820
61%
**12
100%
IMR 4166 Enduron
<<locked>>
81%
51271
64%
**41
98%
IMR 4198
<<locked>>
81%
64672
81%
**13
100%
[IMR 4350]*
<<locked>>
81%
37028
46%
**89
93%
IMR 4451 Enduron
<<locked>>
81%
42975
54%
**13
96%
IMR 4831
<<locked>>
81%
35911
45%
**12
97%
IMR 4895
<<locked>>
81%
51387
64%
**04
100%
[IMR 4955 Enduron]*
<<locked>>
87%
38856
49%
**21
90%
[IMR 7828 SSC]*
<<locked>>
92%
38914
49%
**13
90%
IMR 8208 XBR
<<locked>>
81%
56826
71%
**33
100%
Lovex D073.5
<<locked>>
81%
65325
82%
**15
100%
Lovex D073.6
<<locked>>
81%
54998
69%
**07
100%
Lovex S060
<<locked>>
81%
53650
67%
**58
100%
Lovex S062
<<locked>>
81%
49066
61%
**15
100%
Lovex S065
<<locked>>
81%
40509
51%
**61
97%
Lovex S070
<<locked>>
81%
38609
48%
**31
95%
[Lovex S071]*
<<locked>>
85%
26629
33%
**56
90%
Norma 201
<<locked>>
81%
53621
67%
**84
100%
Norma 202
<<locked>>
81%
53969
68%
**67
100%
Norma 203B
<<locked>>
81%
49516
62%
**64
100%
[Norma 204]*
<<locked>>
81%
36608
46%
**15
91%
[Norma MRP]*
<<locked>>
83%
30501
38%
**36
90%
Norma URP
<<locked>>
81%
36927
46%
**44
97%
Ramshot Big Game
<<locked>>
81%
49574
62%
**84
100%
[Ramshot Grand]*
<<locked>>
92%
37898
47%
**00
90%
Ramshot Hunter
<<locked>>
81%
35940
45%
**31
95%
[Ramshot Magnum]*
<<locked>>
91%
32895
41%
**59
90%
Ramshot TAC
<<locked>>
81%
56985
71%
**59
100%
Ramshot Wild Boar
<<locked>>
81%
57232
72%
**76
100%
Ramshot X-Terminator
<<locked>>
81%
60945
76%
**79
100%
ReloadSwiss RS 14
<<locked>>
81%
28065
35%
**96
100%
ReloadSwiss RS 40
<<locked>>
81%
63411
79%
**02
100%
ReloadSwiss RS 50
<<locked>>
81%
47630
60%
**05
98%
ReloadSwiss RS 52
<<locked>>
81%
54201
68%
**92
100%
ReloadSwiss RS 60
<<locked>>
81%
43656
55%
**51
100%
ReloadSwiss RS 62
<<locked>>
81%
36912
46%
**67
97%
ReloadSwiss RS 70
<<locked>>
81%
35853
45%
**67
96%
[ReloadSwiss RS 76]*
<<locked>>
94%
33388
42%
**21
90%
Rottweil R 901
<<locked>>
81%
57392
72%
**97
100%
Rottweil R 902
<<locked>>
81%
50908
64%
**28
100%
Rottweil R 903
<<locked>>
81%
44295
55%
**56
100%
[Rottweil R 904]*
<<locked>>
84%
36941
46%
**92
90%
[Rottweil R 905]*
<<locked>>
83%
33025
41%
**52
90%
Rottweil R 907
<<locked>>
81%
41568
52%
**74
95%
SNPE Vectan BA6 1/2
<<locked>>
81%
66834
84%
**74
100%
SNPE Vectan SP 11
<<locked>>
81%
45513
57%
**12
100%
SNPE Vectan SP 3
<<locked>>
81%
66775
84%
**89
100%
SNPE Vectan SP 7
<<locked>>
81%
55927
70%
**40
100%
SNPE Vectan SP 9
<<locked>>
81%
53243
67%
**04
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
54389
68%
**08
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
45905
57%
**71
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
39784
50%
**02
95%
[SNPE Vectan Tubal 8000]*
<<locked>>
84%
33185
42%
**56
90%
Shooters World Long Rifle
<<locked>>
81%
40509
51%
**61
97%
Shooters World Match Rifle
<<locked>>
81%
54998
69%
**07
100%
Shooters World Precision
<<locked>>
81%
49066
61%
**15
100%
Shooters World SW4350
<<locked>>
81%
38609
48%
**31
95%
Somchem S321
<<locked>>
81%
62250
78%
**15
100%
Somchem S335
<<locked>>
81%
54215
68%
**08
100%
Somchem S341
<<locked>>
81%
55477
69%
**20
100%
Somchem S355
<<locked>>
81%
44773
56%
**62
100%
[Somchem S361]*
<<locked>>
85%
39146
49%
**12
90%
Somchem S365
<<locked>>
81%
33359
42%
**02
99%
[Somchem S385]*
<<locked>>
81%
30951
39%
**64
90%
Vihtavuori N130
<<locked>>
81%
60945
76%
**58
100%
Vihtavuori N133
<<locked>>
81%
54955
69%
**92
100%
Vihtavuori N135
<<locked>>
81%
48588
61%
**62
100%
Vihtavuori N140
<<locked>>
81%
51227
64%
**02
100%
Vihtavuori N150
<<locked>>
81%
42627
53%
**87
100%
Vihtavuori N160
<<locked>>
81%
38435
48%
**44
97%
[Vihtavuori N165]*
<<locked>>
86%
31633
40%
**80
90%
Vihtavuori N530
<<locked>>
81%
57159
72%
**30
100%
Vihtavuori N540
<<locked>>
81%
49472
62%
**95
100%
Vihtavuori N550
<<locked>>
81%
37985
48%
**48
97%
Vihtavuori N555
<<locked>>
81%
28906
36%
**74
95%
[Vihtavuori N560]*
<<locked>>
90%
39276
49%
**49
90%
Winchester 6.5 StaBALL
<<locked>>
81%
37710
47%
**21
99%
Winchester 748
<<locked>>
81%
57899
72%
**79
100%
Winchester 760
<<locked>>
81%
39450
49%
**03
95%
[Winchester StaBALL HD]*
<<locked>>
81%
23482
29%
**43
91%
Winchester StaBALL Match
<<locked>>
81%
53330
67%
**13
100%
[Winchester Supreme 780]*
<<locked>>
86%
33881
42%
**39
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