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Load data for 7 mm Backcountry + .285 | 139gr | Prvi Partizan SP

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

7 mm Backcountry + .285 | 139gr | Prvi Partizan SP

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.285 | 139gr | Prvi Partizan SP
Manufacturer SKU:
B-051
Bullet Weight:
139gr | 9.0g
Bullet Diameter:
0.285" | 7.24mm
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_B9128_C991
Last updated:
2026-07-13

Load data for 252 loads in caliber 7 mm Backcountry with .285 | 139gr | Prvi Partizan SP bullet and 126 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.

    .

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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%
71156
89%
**84
101%
ADI AR 2206H
<<locked>>
88%
71112
89%
**79
100%
ADI AR 2208
<<locked>>
94%
71344
89%
**63
100%
ADI AR 2209
<<locked>>
97%
55869
70%
**48
98%
ADI AR 2213
<<locked>>
97%
49661
62%
**63
95%
ADI Benchmark 8208
<<locked>>
88%
71866
90%
**43
100%
Accurate 2015
<<locked>>
86%
71504
89%
**38
100%
Accurate 2495
<<locked>>
90%
70953
89%
**64
100%
Accurate 2520
<<locked>>
85%
71170
89%
**23
100%
Accurate 2700
<<locked>>
91%
71170
89%
**43
100%
Accurate 3100
<<locked>>
97%
49008
61%
**90
99%
Accurate 4064
<<locked>>
92%
71765
90%
**23
100%
Accurate 4350
<<locked>>
97%
67066
84%
**82
100%
[Accurate MAGPRO]*
<<locked>>
97%
50792
64%
**18
94%
Alliant AR-Comp
<<locked>>
86%
70953
89%
**61
100%
Alliant Power Pro 2000-MR
<<locked>>
89%
71837
90%
**17
100%
Alliant Reloder- TS 15.5
<<locked>>
93%
71054
89%
**73
100%
Alliant Reloder-15
<<locked>>
91%
71576
90%
**09
100%
Alliant Reloder-16
<<locked>>
97%
62845
79%
**66
100%
Alliant Reloder-17
<<locked>>
95%
71141
89%
**78
100%
Alliant Reloder-19
<<locked>>
97%
55027
69%
**35
98%
Alliant Reloder-22
<<locked>>
97%
48776
61%
**63
96%
Alliant Reloder-23
<<locked>>
97%
46296
58%
**13
100%
Alliant Reloder-25
<<locked>>
97%
40422
51%
**15
98%
Alliant Reloder-26
<<locked>>
97%
52475
66%
**94
100%
Baschieri & Pellagri 107
<<locked>>
88%
70938
89%
**96
100%
Bofors RP15
<<locked>>
97%
44498
56%
**71
95%
Bofors RP3
<<locked>>
93%
71736
90%
**82
100%
Bofors RP5
<<locked>>
97%
48776
61%
**63
96%
Bofors RP7
<<locked>>
97%
70677
88%
**73
100%
Hodgdon BL-C2
<<locked>>
87%
71547
90%
**63
100%
Hodgdon Benchmark
<<locked>>
87%
71069
89%
**00
100%
Hodgdon CFE223
<<locked>>
83%
70895
89%
**45
100%
Hodgdon H380
<<locked>>
92%
70938
89%
**92
100%
Hodgdon H414 👍
<<locked>>
97%
69517
87%
**38
100%
Hodgdon H4350 👍
<<locked>>
96%
71663
90%
**35
100%
Hodgdon H4831
<<locked>>
97%
53142
66%
**66
95%
Hodgdon H4831 SC
<<locked>>
97%
52112
65%
**53
95%
Hodgdon H4895
<<locked>>
88%
71083
89%
**76
100%
Hodgdon Hybrid 100V
<<locked>>
97%
58740
73%
**31
100%
Hodgdon LEVERevolution
<<locked>>
90%
71707
90%
**05
100%
[Hodgdon Retumbo]*
<<locked>>
97%
39378
49%
**25
93%
Hodgdon Superformance 👍
<<locked>>
97%
71228
89%
**84
100%
Hodgdon TrailBoss
<<locked>>
97%
34795
44%
**37
100%
Hodgdon VARGET
<<locked>>
89%
71214
89%
**56
100%
IMR 3031
<<locked>>
88%
71620
90%
**40
100%
IMR 4064
<<locked>>
92%
71170
89%
**56
100%
IMR 4166 Enduron
<<locked>>
90%
70924
89%
**59
100%
IMR 4198
<<locked>>
84%
70938
89%
**09
100%
IMR 4350
<<locked>>
97%
63541
80%
**94
99%
IMR 4451 Enduron
<<locked>>
97%
71837
90%
**99
100%
IMR 4831
<<locked>>
97%
62076
78%
**94
100%
IMR 4895
<<locked>>
90%
71417
89%
**09
100%
IMR 4955 Enduron
<<locked>>
97%
55361
69%
**72
96%
[IMR 7828 SSC]*
<<locked>>
97%
47572
60%
**30
94%
IMR 8208 XBR
<<locked>>
88%
71866
90%
**43
100%
Lovex D073.6
<<locked>>
88%
71765
90%
**36
100%
Lovex S060
<<locked>>
90%
71692
90%
**23
100%
Lovex S062
<<locked>>
92%
71344
89%
**36
100%
Lovex S065
<<locked>>
97%
68284
85%
**40
100%
Lovex S070
<<locked>>
97%
65282
82%
**27
100%
Lovex S071
<<locked>>
97%
40915
51%
**36
97%
Norma 201
<<locked>>
89%
70996
89%
**36
100%
Norma 202
<<locked>>
89%
71576
90%
**14
100%
Norma 203B
<<locked>>
92%
71765
90%
**99
100%
Norma 204
<<locked>>
97%
65006
81%
**53
99%
Norma MRP
<<locked>>
97%
51329
64%
**45
98%
Norma URP
<<locked>>
97%
64034
80%
**40
100%
Ramshot Big Game
<<locked>>
91%
71678
90%
**05
100%
Ramshot Grand
<<locked>>
97%
47485
59%
**43
95%
Ramshot Hunter
<<locked>>
97%
63556
80%
**53
100%
Ramshot Magnum
<<locked>>
97%
42308
53%
**15
95%
Ramshot TAC
<<locked>>
87%
71562
90%
**79
100%
Ramshot Wild Boar
<<locked>>
87%
71272
89%
**82
100%
Ramshot X-Terminator
<<locked>>
85%
71446
89%
**40
100%
ReloadSwiss RS 14
<<locked>>
96%
35230
44%
**77
100%
ReloadSwiss RS 40
<<locked>>
84%
71620
90%
**27
100%
ReloadSwiss RS 50
<<locked>>
92%
70953
89%
**82
100%
ReloadSwiss RS 52
<<locked>>
88%
71823
90%
**58
100%
ReloadSwiss RS 60
<<locked>>
93%
71141
89%
**64
100%
ReloadSwiss RS 62
<<locked>>
97%
66645
83%
**02
100%
ReloadSwiss RS 70 👍
<<locked>>
97%
65702
82%
**35
100%
ReloadSwiss RS 76
<<locked>>
97%
39160
49%
**12
95%
Rottweil R 901
<<locked>>
87%
71852
90%
**07
100%
Rottweil R 902
<<locked>>
91%
71881
90%
**36
100%
Rottweil R 903
<<locked>>
95%
71576
90%
**69
100%
Rottweil R 904
<<locked>>
97%
56927
71%
**05
97%
Rottweil R 905
<<locked>>
97%
54389
68%
**22
98%
Rottweil R 907
<<locked>>
97%
70677
88%
**73
100%
SNPE Vectan SP 11
<<locked>>
94%
71373
89%
**15
100%
SNPE Vectan SP 7
<<locked>>
87%
71069
89%
**66
100%
SNPE Vectan SP 9
<<locked>>
89%
71054
89%
**63
100%
SNPE Vectan Tubal 3000
<<locked>>
89%
71083
89%
**45
100%
SNPE Vectan Tubal 5000
<<locked>>
94%
71083
89%
**18
100%
SNPE Vectan Tubal 7000
<<locked>>
97%
68792
86%
**04
100%
SNPE Vectan Tubal 8000
<<locked>>
97%
53911
67%
**12
98%
Shooters World Long Rifle
<<locked>>
97%
68284
85%
**40
100%
Shooters World Match Rifle
<<locked>>
88%
71765
90%
**36
100%
Shooters World Precision
<<locked>>
92%
71344
89%
**36
100%
Shooters World SW4350
<<locked>>
97%
65282
82%
**27
100%
Somchem S321
<<locked>>
84%
71881
90%
**53
100%
Somchem S335
<<locked>>
89%
71243
89%
**41
100%
Somchem S341
<<locked>>
87%
71388
89%
**46
100%
Somchem S355
<<locked>>
95%
71533
90%
**76
100%
Somchem S361
<<locked>>
97%
59524
74%
**09
96%
Somchem S365
<<locked>>
97%
60408
76%
**00
100%
Somchem S385
<<locked>>
97%
54694
68%
**86
98%
Vihtavuori N130
<<locked>>
85%
70895
89%
**95
100%
Vihtavuori N133
<<locked>>
89%
71344
89%
**15
100%
Vihtavuori N135
<<locked>>
92%
71257
89%
**64
100%
Vihtavuori N140
<<locked>>
90%
71040
89%
**81
100%
Vihtavuori N150
<<locked>>
96%
71779
90%
**23
100%
Vihtavuori N160
<<locked>>
97%
67501
84%
**50
100%
Vihtavuori N165
<<locked>>
97%
47427
59%
**44
97%
Vihtavuori N530
<<locked>>
87%
71910
90%
**33
100%
Vihtavuori N540
<<locked>>
92%
71750
90%
**10
100%
Vihtavuori N550
<<locked>>
97%
65876
82%
**50
100%
Vihtavuori N555
<<locked>>
97%
51300
64%
**86
100%
Vihtavuori N560
<<locked>>
97%
51822
65%
**31
95%
[Vihtavuori N565]*
<<locked>>
97%
40915
51%
**95
92%
Winchester 6.5 StaBALL
<<locked>>
97%
68313
85%
**14
100%
Winchester 748
<<locked>>
86%
71721
90%
**76
100%
Winchester 760 👍
<<locked>>
97%
68995
86%
**25
100%
Winchester StaBALL HD
<<locked>>
97%
40321
50%
**49
100%
Winchester StaBALL Match
<<locked>>
89%
71794
90%
**73
100%
Winchester Supreme 780
<<locked>>
97%
50749
64%
**07
97%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI APS 450
<<locked>>
81%
59799
75%
**23
101%
ADI AR 2206H
<<locked>>
81%
56434
71%
**76
100%
ADI AR 2208
<<locked>>
81%
47935
60%
**22
100%
[ADI AR 2209]*
<<locked>>
81%
33620
42%
**69
90%
[ADI AR 2213]*
<<locked>>
89%
38261
48%
**07
90%
ADI Benchmark 8208
<<locked>>
81%
58566
73%
**72
100%
Accurate 2015
<<locked>>
81%
60669
76%
**13
100%
Accurate 2495
<<locked>>
81%
53954
68%
**51
100%
Accurate 2520
<<locked>>
81%
62395
78%
**15
100%
Accurate 2700
<<locked>>
81%
51416
64%
**54
98%
[Accurate 3100]*
<<locked>>
81%
28427
36%
**21
91%
Accurate 4064
<<locked>>
81%
50966
64%
**54
100%
Accurate 4350
<<locked>>
81%
38812
49%
**03
98%
[Accurate MAGPRO]*
<<locked>>
90%
40248
50%
**99
90%
Alliant AR-Comp
<<locked>>
81%
60916
76%
**40
100%
Alliant Power Pro 2000-MR
<<locked>>
81%
53345
67%
**48
100%
Alliant Reloder- TS 15.5
<<locked>>
81%
48312
60%
**54
100%
Alliant Reloder-15
<<locked>>
81%
51735
65%
**23
100%
Alliant Reloder-16
<<locked>>
81%
37681
47%
**10
98%
Alliant Reloder-17
<<locked>>
81%
42975
54%
**51
100%
[Alliant Reloder-19]*
<<locked>>
81%
33402
42%
**72
90%
[Alliant Reloder-22]*
<<locked>>
85%
33170
42%
**02
90%
Alliant Reloder-23
<<locked>>
81%
27717
35%
**51
95%
[Alliant Reloder-25]*
<<locked>>
85%
27441
34%
**34
90%
[Alliant Reloder-26]*
<<locked>>
81%
29472
37%
**52
93%
Baschieri & Pellagri 107
<<locked>>
81%
56289
70%
**95
100%
[Bofors RP15]*
<<locked>>
88%
33634
42%
**12
90%
Bofors RP3
<<locked>>
81%
48965
61%
**61
100%
[Bofors RP5]*
<<locked>>
85%
33170
42%
**02
90%
Bofors RP7
<<locked>>
81%
42960
54%
**26
96%
Hodgdon BL-C2
<<locked>>
81%
58987
74%
**12
100%
Hodgdon Benchmark
<<locked>>
81%
59886
75%
**49
100%
Hodgdon CFE223
<<locked>>
81%
65789
82%
**79
100%
Hodgdon H380
<<locked>>
81%
49487
62%
**81
99%
Hodgdon H414
<<locked>>
81%
40727
51%
**46
96%
Hodgdon H4350
<<locked>>
81%
43874
55%
**76
95%
[Hodgdon H4831]*
<<locked>>
88%
39392
49%
**94
90%
[Hodgdon H4831 SC]*
<<locked>>
88%
39392
49%
**94
90%
Hodgdon H4895
<<locked>>
81%
57043
71%
**89
100%
Hodgdon Hybrid 100V
<<locked>>
81%
35302
44%
**05
99%
Hodgdon LEVERevolution
<<locked>>
81%
53867
67%
**69
100%
[Hodgdon Retumbo]*
<<locked>>
93%
34911
44%
**00
90%
Hodgdon Superformance
<<locked>>
81%
39885
50%
**59
95%
Hodgdon TrailBoss
<<locked>>
81%
27833
35%
**86
100%
Hodgdon VARGET
<<locked>>
81%
54578
68%
**43
100%
IMR 3031
<<locked>>
81%
57537
72%
**63
100%
IMR 4064
<<locked>>
81%
50488
63%
**61
100%
IMR 4166 Enduron
<<locked>>
81%
52881
66%
**97
99%
IMR 4198
<<locked>>
81%
65818
82%
**53
100%
[IMR 4350]*
<<locked>>
81%
38290
48%
**38
94%
IMR 4451 Enduron
<<locked>>
81%
44425
56%
**53
97%
IMR 4831
<<locked>>
81%
37318
47%
**54
98%
IMR 4895
<<locked>>
81%
53011
66%
**56
100%
[IMR 4955 Enduron]*
<<locked>>
85%
37579
47%
**18
90%
[IMR 7828 SSC]*
<<locked>>
90%
37768
47%
**13
90%
IMR 8208 XBR
<<locked>>
81%
58566
73%
**72
100%
Lovex D073.6
<<locked>>
81%
57188
72%
**59
100%
Lovex S060
<<locked>>
81%
55259
69%
**04
100%
Lovex S062
<<locked>>
81%
50763
64%
**64
100%
Lovex S065
<<locked>>
81%
41930
52%
**10
97%
Lovex S070
<<locked>>
81%
39972
50%
**80
96%
[Lovex S071]*
<<locked>>
84%
26832
34%
**69
90%
Norma 201
<<locked>>
81%
55332
69%
**30
100%
Norma 202
<<locked>>
81%
55724
70%
**20
100%
Norma 203B
<<locked>>
81%
51097
64%
**07
100%
[Norma 204]*
<<locked>>
81%
37710
47%
**67
92%
[Norma MRP]*
<<locked>>
81%
30313
38%
**43
90%
Norma URP
<<locked>>
81%
38421
48%
**97
98%
Ramshot Big Game
<<locked>>
81%
51634
65%
**30
100%
[Ramshot Grand]*
<<locked>>
90%
37246
47%
**03
90%
Ramshot Hunter
<<locked>>
81%
37318
47%
**77
96%
[Ramshot Magnum]*
<<locked>>
89%
32358
40%
**62
90%
Ramshot TAC
<<locked>>
81%
58711
73%
**02
100%
Ramshot Wild Boar
<<locked>>
81%
59161
74%
**22
100%
Ramshot X-Terminator
<<locked>>
81%
62975
79%
**35
100%
ReloadSwiss RS 14
<<locked>>
81%
28195
35%
**22
100%
ReloadSwiss RS 40
<<locked>>
81%
65630
82%
**51
100%
ReloadSwiss RS 50
<<locked>>
81%
49342
62%
**58
98%
ReloadSwiss RS 52
<<locked>>
81%
55825
70%
**41
100%
ReloadSwiss RS 60
<<locked>>
81%
45513
57%
**04
100%
ReloadSwiss RS 62
<<locked>>
81%
38638
48%
**26
98%
ReloadSwiss RS 70
<<locked>>
81%
37550
47%
**30
97%
[ReloadSwiss RS 76]*
<<locked>>
92%
32793
41%
**21
90%
Rottweil R 901
<<locked>>
81%
59408
74%
**49
100%
Rottweil R 902
<<locked>>
81%
52663
66%
**77
100%
Rottweil R 903
<<locked>>
81%
45919
57%
**05
100%
[Rottweil R 904]*
<<locked>>
82%
36056
45%
**85
90%
[Rottweil R 905]*
<<locked>>
82%
32735
41%
**52
90%
Rottweil R 907
<<locked>>
81%
42960
54%
**26
96%
SNPE Vectan SP 11
<<locked>>
81%
47123
59%
**64
100%
SNPE Vectan SP 7
<<locked>>
81%
57667
72%
**86
100%
SNPE Vectan SP 9
<<locked>>
81%
54737
68%
**49
100%
SNPE Vectan Tubal 3000
<<locked>>
81%
55782
70%
**54
100%
SNPE Vectan Tubal 5000
<<locked>>
81%
47108
59%
**13
100%
SNPE Vectan Tubal 7000
<<locked>>
81%
41060
51%
**48
96%
[SNPE Vectan Tubal 8000]*
<<locked>>
82%
32430
41%
**52
90%
Shooters World Long Rifle
<<locked>>
81%
41930
52%
**10
97%
Shooters World Match Rifle
<<locked>>
81%
57188
72%
**59
100%
Shooters World Precision
<<locked>>
81%
50763
64%
**64
100%
Shooters World SW4350
<<locked>>
81%
39972
50%
**80
96%
Somchem S321
<<locked>>
81%
64034
80%
**64
100%
Somchem S335
<<locked>>
81%
55825
70%
**48
100%
Somchem S341
<<locked>>
81%
57188
72%
**72
100%
Somchem S355
<<locked>>
81%
46369
58%
**12
100%
[Somchem S361]*
<<locked>>
84%
38218
48%
**15
90%
Somchem S365
<<locked>>
81%
34795
44%
**54
99%
[Somchem S385]*
<<locked>>
81%
32547
41%
**23
91%
Vihtavuori N130
<<locked>>
81%
62294
78%
**97
100%
Vihtavuori N133
<<locked>>
81%
56246
70%
**35
100%
Vihtavuori N135
<<locked>>
81%
50140
63%
**99
100%
Vihtavuori N140
<<locked>>
81%
52982
66%
**44
100%
Vihtavuori N150
<<locked>>
81%
44106
55%
**33
100%
Vihtavuori N160
<<locked>>
81%
40074
50%
**00
98%
[Vihtavuori N165]*
<<locked>>
84%
31256
39%
**84
90%
Vihtavuori N530
<<locked>>
81%
59350
74%
**82
100%
Vihtavuori N540
<<locked>>
81%
51358
64%
**44
100%
Vihtavuori N550
<<locked>>
81%
39595
50%
**03
98%
Vihtavuori N555
<<locked>>
81%
30356
38%
**33
96%
[Vihtavuori N560]*
<<locked>>
88%
38841
49%
**46
90%
[Vihtavuori N565]*
<<locked>>
94%
37260
47%
**13
90%
Winchester 6.5 StaBALL
<<locked>>
81%
39117
49%
**71
100%
Winchester 748
<<locked>>
81%
60002
75%
**28
100%
Winchester 760
<<locked>>
81%
41089
51%
**62
96%
[Winchester StaBALL HD]*
<<locked>>
81%
24294
30%
**95
93%
Winchester StaBALL Match
<<locked>>
81%
55187
69%
**59
100%
[Winchester Supreme 780]*
<<locked>>
84%
33112
41%
**33
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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