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Load data for 7 mm Backcountry + .284 | 160gr | Speer Grand Slam

Recommended Powder(s): Hodgdon H414, Hodgdon H4350, Hodgdon Superformance, Norma 204, Winchester 760

7 mm Backcountry + .284 | 160gr | Speer Grand Slam

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 160gr | Speer Grand Slam
Manufacturer SKU:
1638
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_B6128_C991
Last updated:
2026-07-13

Load data for 254 loads in caliber 7 mm Backcountry with .284 | 160gr | Speer Grand Slam bullet and 127 powders such as Hodgdon H414, Hodgdon H4350, Hodgdon Superformance, Norma 204, 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.

    .

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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%
71533
90%
**10
101%
ADI AR 2206H
<<locked>>
87%
71257
89%
**63
100%
ADI AR 2208
<<locked>>
92%
71185
89%
**56
100%
ADI AR 2209
<<locked>>
97%
58856
74%
**00
99%
ADI AR 2213
<<locked>>
97%
52518
66%
**38
97%
[ADI AR 2217]*
<<locked>>
97%
38899
49%
**49
93%
[ADI AR 2225]*
<<locked>>
97%
34113
43%
**97
94%
ADI Benchmark 8208
<<locked>>
86%
71489
89%
**27
100%
Accurate 2015
<<locked>>
85%
70967
89%
**15
100%
Accurate 2495
<<locked>>
88%
71214
89%
**51
100%
Accurate 2520
<<locked>>
83%
70866
89%
**04
100%
Accurate 2700
<<locked>>
90%
71533
90%
**40
100%
Accurate 3100
<<locked>>
97%
52272
65%
**56
100%
Accurate 4064
<<locked>>
90%
71504
89%
**07
100%
Accurate 4350
<<locked>>
97%
70924
89%
**12
100%
Accurate MAGPRO
<<locked>>
97%
54317
68%
**97
97%
Alliant AR-Comp
<<locked>>
84%
71823
90%
**48
100%
Alliant Power Pro 2000-MR
<<locked>>
87%
71707
90%
**81
100%
Alliant Reloder- TS 15.5
<<locked>>
92%
71040
89%
**53
100%
Alliant Reloder-15
<<locked>>
89%
71011
89%
**82
100%
Alliant Reloder-16
<<locked>>
97%
66834
84%
**05
100%
Alliant Reloder-17
<<locked>>
94%
71388
89%
**58
100%
Alliant Reloder-19
<<locked>>
97%
58102
73%
**87
99%
Alliant Reloder-22
<<locked>>
97%
51851
65%
**31
98%
Alliant Reloder-23
<<locked>>
97%
49110
61%
**69
100%
Alliant Reloder-25
<<locked>>
97%
42830
54%
**03
99%
Alliant Reloder-26
<<locked>>
97%
57377
72%
**69
100%
Baschieri & Pellagri 107
<<locked>>
86%
71228
89%
**86
100%
[Baschieri & Pellagri 109]*
<<locked>>
97%
52301
65%
**46
94%
Bofors RP15
<<locked>>
97%
48327
60%
**76
98%
Bofors RP3
<<locked>>
91%
71533
90%
**59
100%
[Bofors RP30]*
<<locked>>
97%
38928
49%
**18
94%
Bofors RP5
<<locked>>
97%
51851
65%
**31
98%
Bofors RP7
<<locked>>
95%
71388
89%
**82
100%
Hodgdon BL-C2
<<locked>>
85%
71489
89%
**53
100%
Hodgdon Benchmark
<<locked>>
85%
71301
89%
**84
100%
Hodgdon H1000
<<locked>>
97%
42525
53%
**44
95%
Hodgdon H380
<<locked>>
91%
71257
89%
**82
100%
Hodgdon H414 👍
<<locked>>
96%
71098
89%
**45
100%
Hodgdon H4350 👍
<<locked>>
95%
71823
90%
**28
100%
Hodgdon H4831
<<locked>>
97%
57087
71%
**51
97%
Hodgdon H4831 SC
<<locked>>
97%
55317
69%
**25
97%
Hodgdon H4895
<<locked>>
86%
71170
89%
**56
100%
Hodgdon Hybrid 100V
<<locked>>
97%
62830
79%
**71
100%
Hodgdon LEVERevolution
<<locked>>
88%
71025
89%
**86
100%
Hodgdon Retumbo
<<locked>>
97%
41829
52%
**26
97%
Hodgdon Superformance 👍
<<locked>>
95%
70663
88%
**68
100%
Hodgdon TrailBoss
<<locked>>
97%
35244
44%
**03
100%
Hodgdon VARGET
<<locked>>
88%
71141
89%
**49
100%
IMR 3031
<<locked>>
86%
71837
90%
**13
100%
IMR 4064
<<locked>>
91%
71663
90%
**43
100%
IMR 4166 Enduron
<<locked>>
89%
71692
90%
**63
100%
IMR 4350
<<locked>>
97%
66717
83%
**43
100%
IMR 4451 Enduron
<<locked>>
95%
71620
90%
**86
100%
IMR 4831
<<locked>>
97%
66645
83%
**43
100%
IMR 4895
<<locked>>
89%
71779
90%
**95
100%
IMR 4955 Enduron
<<locked>>
97%
58001
73%
**35
98%
IMR 7828 SSC
<<locked>>
97%
50546
63%
**12
97%
IMR 8208 XBR
<<locked>>
86%
71489
89%
**27
100%
Lovex D073.6
<<locked>>
86%
71692
90%
**17
100%
Lovex S060
<<locked>>
88%
71446
89%
**10
100%
Lovex S062
<<locked>>
91%
71431
89%
**30
100%
Lovex S065
<<locked>>
97%
71257
89%
**69
100%
Lovex S070
<<locked>>
97%
69865
87%
**76
100%
Lovex S071
<<locked>>
96%
43526
54%
**15
99%
Norma 201
<<locked>>
88%
71881
90%
**23
100%
Norma 202
<<locked>>
88%
71881
90%
**10
100%
Norma 203B
<<locked>>
90%
71228
89%
**72
100%
Norma 204 👍
<<locked>>
97%
68835
86%
**09
100%
Norma MRP
<<locked>>
97%
55288
69%
**13
100%
Norma URP
<<locked>>
97%
69140
87%
**99
100%
Ramshot Big Game
<<locked>>
89%
71446
89%
**89
100%
Ramshot Grand
<<locked>>
97%
50705
63%
**25
97%
Ramshot Hunter
<<locked>>
97%
67254
84%
**02
100%
Ramshot Magnum
<<locked>>
97%
45484
57%
**10
98%
Ramshot TAC
<<locked>>
86%
71620
90%
**72
100%
Ramshot Wild Boar
<<locked>>
85%
71460
89%
**69
100%
Ramshot X-Terminator
<<locked>>
84%
71866
90%
**30
100%
ReloadSwiss RS 14
<<locked>>
96%
35752
45%
**39
100%
ReloadSwiss RS 50
<<locked>>
91%
70880
89%
**69
100%
ReloadSwiss RS 52
<<locked>>
86%
71460
89%
**31
100%
ReloadSwiss RS 60
<<locked>>
92%
71272
89%
**45
100%
ReloadSwiss RS 62
<<locked>>
97%
71591
90%
**41
100%
ReloadSwiss RS 70
<<locked>>
97%
69633
87%
**74
100%
ReloadSwiss RS 76
<<locked>>
97%
41843
52%
**30
98%
Rottweil R 901
<<locked>>
86%
71562
90%
**81
100%
Rottweil R 902
<<locked>>
90%
71707
90%
**17
100%
Rottweil R 903
<<locked>>
93%
71837
90%
**59
100%
Rottweil R 904
<<locked>>
97%
60104
75%
**67
98%
Rottweil R 905
<<locked>>
97%
58015
73%
**81
99%
Rottweil R 907
<<locked>>
95%
71388
89%
**82
100%
SNPE Vectan SP 11
<<locked>>
92%
71707
90%
**02
100%
SNPE Vectan SP 7
<<locked>>
86%
71214
89%
**53
100%
SNPE Vectan SP 9
<<locked>>
88%
71475
89%
**56
100%
SNPE Vectan Tubal 3000
<<locked>>
88%
71750
90%
**35
100%
SNPE Vectan Tubal 5000
<<locked>>
93%
71431
89%
**15
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
71794
90%
**33
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
57508
72%
**84
99%
Shooters World Long Rifle
<<locked>>
97%
71257
89%
**69
100%
Shooters World Match Rifle
<<locked>>
86%
71692
90%
**17
100%
Shooters World Precision
<<locked>>
91%
71431
89%
**30
100%
Shooters World SW4350
<<locked>>
97%
69865
87%
**76
100%
Somchem S335
<<locked>>
88%
71881
90%
**38
100%
Somchem S341
<<locked>>
86%
71446
89%
**36
100%
Somchem S355
<<locked>>
93%
71083
89%
**53
100%
Somchem S361
<<locked>>
97%
62671
78%
**67
98%
Somchem S365
<<locked>>
97%
64310
80%
**43
100%
Somchem S385
<<locked>>
97%
57914
72%
**51
100%
Vihtavuori N130
<<locked>>
84%
71301
89%
**85
100%
Vihtavuori N133
<<locked>>
87%
71112
89%
**02
100%
Vihtavuori N135
<<locked>>
91%
71794
90%
**58
100%
Vihtavuori N140
<<locked>>
89%
71678
90%
**67
100%
Vihtavuori N150
<<locked>>
94%
71823
90%
**07
100%
Vihtavuori N160
<<locked>>
97%
71185
89%
**79
100%
Vihtavuori N165
<<locked>>
97%
50415
63%
**23
98%
Vihtavuori N530
<<locked>>
85%
71866
90%
**20
100%
Vihtavuori N540
<<locked>>
90%
71895
90%
**97
100%
Vihtavuori N550
<<locked>>
97%
70082
88%
**89
100%
Vihtavuori N555
<<locked>>
97%
55230
69%
**48
100%
Vihtavuori N560
<<locked>>
97%
55390
69%
**04
97%
Vihtavuori N565
<<locked>>
97%
44527
56%
**00
95%
Winchester 6.5 StaBALL
<<locked>>
96%
71141
89%
**33
100%
Winchester 748
<<locked>>
84%
71098
89%
**46
100%
Winchester 760 👍
<<locked>>
96%
71098
89%
**45
100%
Winchester StaBALL HD
<<locked>>
97%
44686
56%
**25
100%
Winchester StaBALL Match
<<locked>>
87%
70909
89%
**56
100%
Winchester Supreme 780
<<locked>>
97%
54810
69%
**99
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59683
75%
**52
100%
ADI AR 2206H
<<locked>>
81%
59379
74%
**22
100%
ADI AR 2208
<<locked>>
81%
50662
63%
**77
100%
[ADI AR 2209]*
<<locked>>
81%
35128
44%
**54
93%
[ADI AR 2213]*
<<locked>>
83%
33953
42%
**41
90%
[ADI AR 2217]*
<<locked>>
93%
34156
43%
**34
90%
[ADI AR 2225]*
<<locked>>
91%
28471
36%
**20
90%
ADI Benchmark 8208
<<locked>>
81%
61511
77%
**12
100%
Accurate 2015
<<locked>>
81%
63889
80%
**40
100%
Accurate 2495
<<locked>>
81%
56884
71%
**87
100%
Accurate 2520
<<locked>>
81%
65789
82%
**51
100%
Accurate 2700
<<locked>>
81%
54259
68%
**17
99%
Accurate 3100
<<locked>>
81%
30690
38%
**23
95%
Accurate 4064
<<locked>>
81%
53983
68%
**00
100%
Accurate 4350
<<locked>>
81%
41655
52%
**92
99%
[Accurate MAGPRO]*
<<locked>>
85%
35621
45%
**20
90%
Alliant AR-Comp
<<locked>>
81%
64020
80%
**62
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
56927
71%
**00
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
51416
64%
**00
100%
Alliant Reloder-15
<<locked>>
81%
54795
69%
**69
100%
Alliant Reloder-16
<<locked>>
81%
40422
51%
**98
99%
Alliant Reloder-17
<<locked>>
81%
45890
57%
**13
100%
[Alliant Reloder-19]*
<<locked>>
81%
35012
44%
**51
93%
[Alliant Reloder-22]*
<<locked>>
81%
30835
39%
**82
91%
Alliant Reloder-23
<<locked>>
81%
29718
37%
**59
98%
[Alliant Reloder-25]*
<<locked>>
81%
26049
33%
**51
92%
Alliant Reloder-26
<<locked>>
81%
31836
40%
**74
97%
Baschieri & Pellagri 107
<<locked>>
81%
59393
74%
**38
100%
[Baschieri & Pellagri 109]*
<<locked>>
90%
42873
54%
**69
90%
[Bofors RP15]*
<<locked>>
82%
29849
37%
**46
90%
Bofors RP3
<<locked>>
81%
52098
65%
**23
100%
[Bofors RP30]*
<<locked>>
90%
31662
40%
**34
90%
[Bofors RP5]*
<<locked>>
81%
30835
39%
**82
91%
Bofors RP7
<<locked>>
81%
45455
57%
**98
98%
Hodgdon BL-C2
<<locked>>
81%
62323
78%
**44
100%
Hodgdon Benchmark
<<locked>>
81%
62497
78%
**82
100%
[Hodgdon H1000]*
<<locked>>
89%
33025
41%
**08
90%
Hodgdon H380
<<locked>>
81%
51982
65%
**33
100%
Hodgdon H414
<<locked>>
81%
43671
55%
**31
98%
Hodgdon H4350
<<locked>>
81%
46586
58%
**51
97%
[Hodgdon H4831]*
<<locked>>
82%
34476
43%
**18
90%
[Hodgdon H4831 SC]*
<<locked>>
82%
34476
43%
**18
90%
Hodgdon H4895
<<locked>>
81%
60075
75%
**22
100%
Hodgdon Hybrid 100V
<<locked>>
81%
37695
47%
**84
100%
Hodgdon LEVERevolution
<<locked>>
81%
57246
72%
**22
100%
[Hodgdon Retumbo]*
<<locked>>
87%
31183
39%
**31
90%
Hodgdon Superformance
<<locked>>
81%
42554
53%
**44
97%
Hodgdon TrailBoss
<<locked>>
81%
27847
35%
**55
100%
Hodgdon VARGET
<<locked>>
81%
57363
72%
**76
100%
IMR 3031
<<locked>>
81%
61192
77%
**95
100%
IMR 4064
<<locked>>
81%
53388
67%
**10
100%
IMR 4166 Enduron
<<locked>>
81%
55288
69%
**46
100%
IMR 4350
<<locked>>
81%
40785
51%
**26
97%
IMR 4451 Enduron
<<locked>>
81%
46702
58%
**21
98%
IMR 4831
<<locked>>
81%
39871
50%
**39
99%
IMR 4895
<<locked>>
81%
56159
70%
**99
100%
[IMR 4955 Enduron]*
<<locked>>
81%
35331
44%
**98
91%
[IMR 7828 SSC]*
<<locked>>
84%
33779
42%
**51
90%
IMR 8208 XBR
<<locked>>
81%
61511
77%
**12
100%
Lovex D073.6
<<locked>>
81%
60147
75%
**85
100%
Lovex S060
<<locked>>
81%
57638
72%
**40
100%
Lovex S062
<<locked>>
81%
53301
67%
**07
100%
Lovex S065
<<locked>>
81%
44266
55%
**79
99%
Lovex S070
<<locked>>
81%
42569
53%
**62
98%
[Lovex S071]*
<<locked>>
81%
26310
33%
**08
92%
Norma 201
<<locked>>
81%
58117
73%
**59
100%
Norma 202
<<locked>>
81%
58842
74%
**56
100%
Norma 203B
<<locked>>
81%
53998
68%
**53
100%
Norma 204
<<locked>>
81%
40408
51%
**59
95%
[Norma MRP]*
<<locked>>
81%
32155
40%
**48
94%
Norma URP
<<locked>>
81%
41336
52%
**82
99%
Ramshot Big Game
<<locked>>
81%
54824
69%
**82
100%
[Ramshot Grand]*
<<locked>>
85%
33518
42%
**51
90%
Ramshot Hunter
<<locked>>
81%
40132
50%
**69
98%
[Ramshot Magnum]*
<<locked>>
84%
28645
36%
**10
90%
Ramshot TAC
<<locked>>
81%
61685
77%
**44
100%
Ramshot Wild Boar
<<locked>>
81%
62381
78%
**58
100%
Ramshot X-Terminator
<<locked>>
81%
66021
83%
**64
100%
ReloadSwiss RS 14
<<locked>>
81%
28369
36%
**91
100%
ReloadSwiss RS 50
<<locked>>
81%
52170
65%
**23
100%
ReloadSwiss RS 52
<<locked>>
81%
59712
75%
**94
100%
ReloadSwiss RS 60
<<locked>>
81%
48849
61%
**59
100%
ReloadSwiss RS 62
<<locked>>
81%
41379
52%
**05
99%
ReloadSwiss RS 70
<<locked>>
81%
40074
50%
**18
99%
[ReloadSwiss RS 76]*
<<locked>>
86%
28674
36%
**59
90%
Rottweil R 901
<<locked>>
81%
62453
78%
**82
100%
Rottweil R 902
<<locked>>
81%
55216
69%
**13
100%
Rottweil R 903
<<locked>>
81%
49023
61%
**71
100%
[Rottweil R 904]*
<<locked>>
81%
36738
46%
**48
92%
[Rottweil R 905]*
<<locked>>
81%
34214
43%
**38
93%
Rottweil R 907
<<locked>>
81%
45455
57%
**98
98%
SNPE Vectan SP 11
<<locked>>
81%
50053
63%
**20
100%
SNPE Vectan SP 7
<<locked>>
81%
60930
76%
**31
100%
SNPE Vectan SP 9
<<locked>>
81%
57827
72%
**95
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
58581
73%
**84
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
49603
62%
**59
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
43366
54%
**26
98%
[SNPE Vectan Tubal 8000]*
<<locked>>
81%
33881
42%
**28
93%
Shooters World Long Rifle
<<locked>>
81%
44266
55%
**79
99%
Shooters World Match Rifle
<<locked>>
81%
60147
75%
**85
100%
Shooters World Precision
<<locked>>
81%
53301
67%
**07
100%
Shooters World SW4350
<<locked>>
81%
42569
53%
**62
98%
Somchem S335
<<locked>>
81%
58320
73%
**87
100%
Somchem S341
<<locked>>
81%
60452
76%
**15
100%
Somchem S355
<<locked>>
81%
49023
61%
**57
100%
[Somchem S361]*
<<locked>>
81%
37173
47%
**25
91%
Somchem S365
<<locked>>
81%
37507
47%
**30
100%
Somchem S385
<<locked>>
81%
34925
44%
**31
95%
Vihtavuori N130
<<locked>>
81%
65166
82%
**23
100%
Vihtavuori N133
<<locked>>
81%
59059
74%
**67
100%
Vihtavuori N135
<<locked>>
81%
53127
66%
**41
100%
Vihtavuori N140
<<locked>>
81%
56043
70%
**94
100%
Vihtavuori N150
<<locked>>
81%
47050
59%
**95
100%
Vihtavuori N160
<<locked>>
81%
42714
53%
**79
99%
[Vihtavuori N165]*
<<locked>>
81%
30023
38%
**93
91%
Vihtavuori N530
<<locked>>
81%
62352
78%
**12
100%
Vihtavuori N540
<<locked>>
81%
54012
68%
**87
100%
Vihtavuori N550
<<locked>>
81%
41945
52%
**79
99%
Vihtavuori N555
<<locked>>
81%
32982
41%
**31
98%
[Vihtavuori N560]*
<<locked>>
83%
34301
43%
**80
90%
[Vihtavuori N565]*
<<locked>>
88%
33243
42%
**48
90%
Winchester 6.5 StaBALL
<<locked>>
81%
41655
52%
**43
100%
Winchester 748
<<locked>>
81%
63730
80%
**67
100%
Winchester 760
<<locked>>
81%
43671
55%
**31
98%
Winchester StaBALL HD
<<locked>>
81%
26223
33%
**43
97%
Winchester StaBALL Match
<<locked>>
81%
58189
73%
**99
100%
[Winchester Supreme 780]*
<<locked>>
81%
31734
40%
**43
91%

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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