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Load data for 7 x 66 SE v. Hofe + .284 | 140gr | Sierra HPBTGK

Recommended Powder(s): ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905

7 x 66 SE v. Hofe + .284 | 140gr | Sierra HPBTGK

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 140gr | Sierra HPBTGK
Manufacturer SKU:
1912
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.325" | 33.7mm
Caliber:
7 x 66 SE v. Hofe load data
Case Length (l3):
2.598" | 66.0mm
Cartridge Length (C.O.L.):
3.257" | 82.7mm
Seated Depth:
0.666" | 16.9mm
Shank Seated Depth:
0.477" | 12.1mm
Case Capacity:
93.0 Grains of Water | 6.04 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
63817 psi | 4400 bar
LID:
LID_B5839_C1097
Last updated:
2025-01-01
Recommended Twist Rate:
1:10 - 1:8

Load data for 138 loads in caliber 7 x 66 SE v. Hofe with .284 | 140gr | Sierra HPBTGK bullet and 69 powders such as ADI AR 2209, Alliant Reloder-19, Alliant Reloder-26, Norma MRP, Rottweil R 905. 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".

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    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.

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 AR 2209 👍
<<locked>>
93%
57305
90%
**36
99%
ADI AR 2213
<<locked>>
96%
57203
90%
**73
98%
ADI AR 2217
<<locked>>
97%
43337
68%
**90
95%
ADI AR 2225
<<locked>>
97%
38392
60%
**28
97%
Accurate 2700
<<locked>>
83%
57145
90%
**12
99%
Accurate 3100
<<locked>>
96%
56855
89%
**64
100%
Accurate 4350
<<locked>>
87%
57203
90%
**00
100%
Accurate MAGPRO
<<locked>>
96%
56652
89%
**66
96%
Alliant Reloder-16
<<locked>>
88%
56913
89%
**36
100%
Alliant Reloder-17
<<locked>>
84%
57305
90%
**43
100%
Alliant Reloder-19 👍
<<locked>>
93%
57029
89%
**33
99%
Alliant Reloder-22
<<locked>>
96%
56826
89%
**69
99%
Alliant Reloder-23
<<locked>>
97%
56072
88%
**14
100%
Alliant Reloder-25
<<locked>>
97%
48428
76%
**41
100%
Alliant Reloder-26 👍
<<locked>>
93%
57348
90%
**12
100%
Hodgdon H1000
<<locked>>
97%
43337
68%
**90
95%
Hodgdon H414
<<locked>>
83%
56884
89%
**23
100%
Hodgdon H4350
<<locked>>
91%
57101
89%
**71
99%
Hodgdon H4831
<<locked>>
97%
54505
85%
**61
97%
Hodgdon H4831 SC
<<locked>>
95%
57421
90%
**14
98%
Hodgdon Hybrid 100V
<<locked>>
90%
57203
90%
**61
100%
Hodgdon LVR
<<locked>>
86%
57276
90%
**04
100%
Hodgdon Retumbo
<<locked>>
97%
38392
60%
**28
97%
Hodgdon Superperformance
<<locked>>
86%
56927
89%
**46
100%
Hodgdon TrailBoss
<<locked>>
97%
35462
56%
**19
100%
IMR 4064
<<locked>>
83%
57203
90%
**35
100%
IMR 4166 Enduron
<<locked>>
84%
57029
89%
**38
100%
IMR 4350
<<locked>>
89%
56869
89%
**68
100%
IMR 4451 Enduron
<<locked>>
85%
56913
89%
**54
100%
IMR 4831
<<locked>>
92%
57145
90%
**81
100%
IMR 4955 Enduron
<<locked>>
95%
56971
89%
**74
98%
IMR 7828 SSC
<<locked>>
95%
56913
89%
**86
98%
Lovex S065
<<locked>>
86%
56826
89%
**38
100%
Lovex S070
<<locked>>
87%
56956
89%
**61
100%
Lovex S071
<<locked>>
97%
49443
77%
**49
99%
Norma 204
<<locked>>
88%
56942
89%
**14
99%
[Norma 217]*
<<locked>>
97%
34519
54%
**53
94%
Norma MRP 👍
<<locked>>
94%
56710
89%
**89
100%
Norma URP
<<locked>>
88%
57174
90%
**00
100%
Ramshot Hunter
<<locked>>
88%
57058
89%
**20
100%
Ramshot Magnum
<<locked>>
96%
56826
89%
**40
100%
ReloadSwiss RS 14
<<locked>>
96%
35882
56%
**59
100%
ReloadSwiss RS 60
<<locked>>
85%
56898
89%
**53
100%
ReloadSwiss RS 62
<<locked>>
87%
56652
89%
**07
100%
ReloadSwiss RS 70
<<locked>>
88%
57203
90%
**69
100%
ReloadSwiss RS 76
<<locked>>
97%
47601
75%
**91
99%
[ReloadSwiss RS 80]*
<<locked>>
97%
42873
67%
**43
93%
Rottweil R 903
<<locked>>
83%
57232
90%
**45
100%
Rottweil R 904
<<locked>>
92%
57377
90%
**84
98%
Rottweil R 905 👍
<<locked>>
93%
56956
89%
**20
99%
Rottweil R 907
<<locked>>
85%
56811
89%
**54
99%
SNPE Vectan Tubal 7000
<<locked>>
87%
57261
90%
**15
100%
Shooters World Long Rifle
<<locked>>
86%
56826
89%
**38
100%
Somchem S355
<<locked>>
83%
57000
89%
**41
100%
Somchem S361
<<locked>>
91%
56942
89%
**48
98%
Somchem S365
<<locked>>
90%
57435
90%
**00
100%
Somchem S385
<<locked>>
93%
57377
90%
**91
100%
Vihtavuori N135
<<locked>>
84%
56956
89%
**46
100%
Vihtavuori N150
<<locked>>
88%
56826
89%
**89
100%
Vihtavuori N160
<<locked>>
85%
56608
89%
**51
100%
Vihtavuori N165
<<locked>>
97%
54737
86%
**35
99%
Vihtavuori N550
<<locked>>
85%
57145
90%
**04
100%
Vihtavuori N555
<<locked>>
94%
56623
89%
**17
100%
Vihtavuori N560
<<locked>>
96%
56811
89%
**82
98%
Vihtavuori N565
<<locked>>
97%
51271
80%
**61
97%
[Vihtavuori N568]*
<<locked>>
97%
44237
69%
**59
93%
Winchester 6.5 StaBALL
<<locked>>
87%
56971
89%
**22
100%
Winchester 760
<<locked>>
83%
56884
89%
**23
100%
Winchester StaBALL HD
<<locked>>
97%
53055
83%
**79
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
38711
61%
**69
95%
[ADI AR 2213]*
<<locked>>
81%
34635
54%
**80
91%
[ADI AR 2217]*
<<locked>>
90%
33968
53%
**44
90%
[ADI AR 2225]*
<<locked>>
87%
28601
45%
**30
90%
Accurate 2700
<<locked>>
81%
52910
83%
**33
99%
Accurate 3100
<<locked>>
81%
34679
54%
**35
96%
Accurate 4350
<<locked>>
81%
46615
73%
**20
100%
[Accurate MAGPRO]*
<<locked>>
85%
38159
60%
**82
90%
Alliant Reloder-16
<<locked>>
81%
44367
70%
**13
100%
Alliant Reloder-17
<<locked>>
81%
51401
81%
**41
100%
Alliant Reloder-19
<<locked>>
81%
38856
61%
**69
95%
[Alliant Reloder-22]*
<<locked>>
81%
34447
54%
**87
93%
Alliant Reloder-23
<<locked>>
81%
33069
52%
**64
99%
[Alliant Reloder-25]*
<<locked>>
81%
28892
45%
**43
94%
Alliant Reloder-26
<<locked>>
81%
36289
57%
**95
98%
[Hodgdon H1000]*
<<locked>>
90%
33968
53%
**44
90%
Hodgdon H414
<<locked>>
81%
52446
82%
**48
99%
Hodgdon H4350
<<locked>>
81%
42525
67%
**02
97%
[Hodgdon H4831]*
<<locked>>
83%
34722
54%
**44
90%
[Hodgdon H4831 SC]*
<<locked>>
81%
36303
57%
**84
91%
Hodgdon Hybrid 100V
<<locked>>
81%
41727
65%
**95
100%
Hodgdon LVR
<<locked>>
81%
48863
77%
**59
100%
[Hodgdon Retumbo]*
<<locked>>
87%
28601
45%
**30
90%
Hodgdon Superperformance
<<locked>>
81%
47659
75%
**79
98%
Hodgdon TrailBoss
<<locked>>
81%
28268
44%
**59
100%
IMR 4064
<<locked>>
81%
53708
84%
**72
100%
IMR 4166 Enduron
<<locked>>
81%
52083
82%
**53
99%
IMR 4350
<<locked>>
81%
44425
70%
**41
98%
IMR 4451 Enduron
<<locked>>
81%
50734
80%
**46
99%
IMR 4831
<<locked>>
81%
39958
63%
**69
99%
[IMR 4955 Enduron]*
<<locked>>
81%
36695
58%
**61
92%
[IMR 7828 SSC]*
<<locked>>
81%
35273
55%
**13
91%
Lovex S065
<<locked>>
81%
48167
75%
**97
99%
Lovex S070
<<locked>>
81%
46485
73%
**77
99%
[Lovex S071]*
<<locked>>
81%
29675
47%
**93
94%
Norma 204
<<locked>>
81%
44773
70%
**81
96%
[Norma 217]*
<<locked>>
92%
28921
45%
**79
90%
Norma MRP
<<locked>>
81%
35984
56%
**59
95%
Norma URP
<<locked>>
81%
45484
71%
**97
100%
Ramshot Hunter
<<locked>>
81%
44396
70%
**94
99%
[Ramshot Magnum]*
<<locked>>
81%
31676
50%
**98
92%
ReloadSwiss RS 14
<<locked>>
81%
28732
45%
**98
100%
ReloadSwiss RS 60
<<locked>>
81%
49516
78%
**45
100%
ReloadSwiss RS 62
<<locked>>
81%
46369
73%
**36
100%
ReloadSwiss RS 70
<<locked>>
81%
44599
70%
**53
100%
[ReloadSwiss RS 76]*
<<locked>>
83%
28950
45%
**66
90%
[ReloadSwiss RS 80]*
<<locked>>
92%
36318
57%
**82
90%
Rottweil R 903
<<locked>>
81%
53664
84%
**86
100%
[Rottweil R 904]*
<<locked>>
81%
40147
63%
**46
94%
Rottweil R 905
<<locked>>
81%
37840
59%
**46
95%
Rottweil R 907
<<locked>>
81%
49385
77%
**20
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
47123
74%
**35
99%
Shooters World Long Rifle
<<locked>>
81%
48167
75%
**97
99%
Somchem S355
<<locked>>
81%
53534
84%
**89
100%
[Somchem S361]*
<<locked>>
81%
41002
64%
**43
93%
Somchem S365
<<locked>>
81%
42221
66%
**54
100%
Somchem S385
<<locked>>
81%
38696
61%
**36
96%
Vihtavuori N135
<<locked>>
81%
51779
81%
**71
100%
Vihtavuori N150
<<locked>>
81%
46006
72%
**15
100%
Vihtavuori N160
<<locked>>
81%
49066
77%
**30
100%
[Vihtavuori N165]*
<<locked>>
81%
32343
51%
**59
93%
Vihtavuori N550
<<locked>>
81%
49458
77%
**72
100%
Vihtavuori N555
<<locked>>
81%
37115
58%
**43
99%
[Vihtavuori N560]*
<<locked>>
81%
34954
55%
**17
90%
[Vihtavuori N565]*
<<locked>>
85%
33663
53%
**71
90%
[Vihtavuori N568]*
<<locked>>
92%
38058
60%
**08
90%
Winchester 6.5 StaBALL
<<locked>>
81%
46122
72%
**54
100%
Winchester 760
<<locked>>
81%
52446
82%
**48
99%
Winchester StaBALL HD
<<locked>>
81%
28427
45%
**64
99%

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.

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