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Load data for 7 x 66 SE v. Hofe + .284 | 140gr | Barnes X S

Recommended Powder(s):

7 x 66 SE v. Hofe + .284 | 140gr | Barnes X S

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 140gr | Barnes X S
Manufacturer SKU:
28425
Bullet Weight:
140gr | 9.1g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
<<locked>>
Caliber:
7 x 66 SE v. Hofe load data
Case Length (l3):
2.598" | 66.0mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
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_B567_C1097
Last updated:
2026-03-24

Load data for 134 loads in caliber 7 x 66 SE v. Hofe with .284 | 140gr | Barnes X S bullet and 67 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".

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  • 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 AR 2209 👍
<<locked>>
91%
57392
90%
**30
99%
ADI AR 2213
<<locked>>
94%
57232
90%
**56
98%
ADI AR 2217
<<locked>>
97%
46543
73%
**43
96%
ADI AR 2225
<<locked>>
97%
41945
66%
**04
98%
Accurate 3100
<<locked>>
93%
57246
90%
**58
100%
Accurate 4350
<<locked>>
85%
57392
90%
**84
100%
Accurate MAGPRO
<<locked>>
94%
57435
90%
**76
97%
Alliant Reloder-16
<<locked>>
87%
57072
89%
**30
100%
Alliant Reloder-19 👍
<<locked>>
91%
57000
89%
**20
99%
Alliant Reloder-22
<<locked>>
94%
57014
89%
**53
99%
Alliant Reloder-23
<<locked>>
95%
57000
89%
**10
100%
Alliant Reloder-25 👍
<<locked>>
97%
52098
82%
**00
100%
Alliant Reloder-26
<<locked>>
91%
57058
89%
**96
100%
Baschieri & Pellagri 109
<<locked>>
95%
57101
89%
**84
95%
Bofors RP15
<<locked>>
96%
57072
89%
**59
99%
Bofors RP30
<<locked>>
97%
48544
76%
**25
97%
Bofors RP5
<<locked>>
94%
57014
89%
**53
99%
Bofors RP7
<<locked>>
84%
57276
90%
**38
99%
Hodgdon H1000
<<locked>>
97%
46543
73%
**43
96%
Hodgdon H4350
<<locked>>
89%
57290
90%
**64
100%
Hodgdon H4831
<<locked>>
96%
57203
90%
**00
98%
Hodgdon H4831 SC
<<locked>>
93%
57203
90%
**00
98%
Hodgdon Hybrid 100V
<<locked>>
88%
57043
89%
**45
100%
Hodgdon LVR
<<locked>>
84%
57290
90%
**87
100%
Hodgdon Retumbo
<<locked>>
97%
41945
66%
**04
98%
Hodgdon Superperformance
<<locked>>
84%
56753
89%
**36
100%
Hodgdon TrailBoss
<<locked>>
97%
35911
56%
**23
100%
IMR 4350
<<locked>>
87%
57072
89%
**54
100%
IMR 4451 Enduron
<<locked>>
83%
56971
89%
**35
100%
IMR 4831
<<locked>>
90%
56492
89%
**51
100%
IMR 4955 Enduron
<<locked>>
94%
57334
90%
**71
98%
IMR 7828 SSC
<<locked>>
93%
57421
90%
**76
98%
[IMR 8133 Enduron]*
<<locked>>
97%
38276
60%
**08
93%
Lovex S065
<<locked>>
84%
56826
89%
**22
100%
Lovex S070
<<locked>>
85%
56869
89%
**45
100%
Lovex S071
<<locked>>
97%
53867
84%
**05
100%
Norma 204
<<locked>>
87%
57203
90%
**97
99%
Norma 217
<<locked>>
97%
38653
61%
**48
96%
Norma MRP 👍
<<locked>>
92%
56869
89%
**73
100%
Norma URP
<<locked>>
86%
56826
89%
**81
100%
Ramshot Grand
<<locked>>
91%
57217
90%
**76
99%
Ramshot Hunter
<<locked>>
87%
56753
89%
**04
100%
Ramshot Magnum
<<locked>>
94%
56710
89%
**27
100%
ReloadSwiss RS 14
<<locked>>
96%
36434
57%
**62
100%
ReloadSwiss RS 62
<<locked>>
85%
56942
89%
**97
100%
ReloadSwiss RS 70
<<locked>>
86%
56956
89%
**56
100%
ReloadSwiss RS 76
<<locked>>
97%
51619
81%
**56
100%
ReloadSwiss RS 80
<<locked>>
97%
47311
74%
**28
95%
Rottweil R 904
<<locked>>
90%
57072
89%
**71
98%
Rottweil R 905 👍
<<locked>>
91%
56985
89%
**10
99%
Rottweil R 907
<<locked>>
84%
57276
90%
**38
99%
SNPE Vectan Tubal 7000
<<locked>>
85%
57087
89%
**95
100%
Shooters World Long Rifle
<<locked>>
84%
56826
89%
**22
100%
Somchem S361
<<locked>>
89%
56652
89%
**25
97%
Somchem S365
<<locked>>
87%
56840
89%
**74
100%
Somchem S385
<<locked>>
91%
56826
89%
**68
99%
Vihtavuori N150
<<locked>>
86%
57246
90%
**82
100%
Vihtavuori N160
<<locked>>
84%
57246
90%
**51
100%
Vihtavuori N165
<<locked>>
96%
56884
89%
**58
99%
Vihtavuori N550
<<locked>>
83%
57174
90%
**91
100%
Vihtavuori N555
<<locked>>
92%
57276
90%
**14
100%
Vihtavuori N560
<<locked>>
94%
56666
89%
**73
98%
Vihtavuori N565
<<locked>>
97%
54679
86%
**10
98%
Vihtavuori N568
<<locked>>
97%
48095
75%
**38
95%
Winchester 6.5 StaBALL
<<locked>>
85%
57348
90%
**18
100%
Winchester StaBALL HD
<<locked>>
96%
57058
89%
**28
100%
Winchester Supreme 780
<<locked>>
90%
56884
89%
**64
99%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
41568
65%
**15
96%
[ADI AR 2213]*
<<locked>>
81%
37565
59%
**43
92%
[ADI AR 2217]*
<<locked>>
86%
33620
53%
**25
90%
[ADI AR 2225]*
<<locked>>
83%
28369
44%
**03
90%
Accurate 3100
<<locked>>
81%
38696
61%
**10
98%
Accurate 4350
<<locked>>
81%
50459
79%
**72
100%
[Accurate MAGPRO]*
<<locked>>
82%
37840
59%
**62
90%
Alliant Reloder-16
<<locked>>
81%
47485
74%
**59
100%
Alliant Reloder-19
<<locked>>
81%
41669
65%
**15
96%
[Alliant Reloder-22]*
<<locked>>
81%
37869
59%
**59
94%
Alliant Reloder-23
<<locked>>
81%
36608
57%
**30
100%
Alliant Reloder-25
<<locked>>
81%
31923
50%
**31
96%
Alliant Reloder-26
<<locked>>
81%
40190
63%
**81
99%
[Baschieri & Pellagri 109]*
<<locked>>
85%
42032
66%
**66
90%
[Bofors RP15]*
<<locked>>
81%
35273
55%
**87
93%
[Bofors RP30]*
<<locked>>
83%
31923
50%
**25
90%
[Bofors RP5]*
<<locked>>
81%
37869
59%
**59
94%
Bofors RP7
<<locked>>
81%
52489
82%
**59
99%
[Hodgdon H1000]*
<<locked>>
86%
33620
53%
**25
90%
Hodgdon H4350
<<locked>>
81%
45556
71%
**48
98%
[Hodgdon H4831]*
<<locked>>
81%
35462
56%
**41
91%
[Hodgdon H4831 SC]*
<<locked>>
81%
39363
62%
**40
92%
Hodgdon Hybrid 100V
<<locked>>
81%
45237
71%
**41
100%
Hodgdon LVR
<<locked>>
81%
51982
81%
**02
100%
[Hodgdon Retumbo]*
<<locked>>
83%
28369
44%
**03
90%
Hodgdon Superperformance
<<locked>>
81%
51140
80%
**31
99%
Hodgdon TrailBoss
<<locked>>
81%
28747
45%
**59
100%
IMR 4350
<<locked>>
81%
47543
75%
**87
98%
IMR 4451 Enduron
<<locked>>
81%
53403
84%
**86
99%
IMR 4831
<<locked>>
81%
43497
68%
**22
100%
[IMR 4955 Enduron]*
<<locked>>
81%
39392
62%
**07
93%
[IMR 7828 SSC]*
<<locked>>
81%
38348
60%
**76
93%
[IMR 8133 Enduron]*
<<locked>>
92%
32909
52%
**57
90%
Lovex S065
<<locked>>
81%
51648
81%
**43
100%
Lovex S070
<<locked>>
81%
49864
78%
**27
99%
Lovex S071
<<locked>>
81%
33721
53%
**89
96%
Norma 204
<<locked>>
81%
47834
75%
**30
97%
[Norma 217]*
<<locked>>
87%
28761
45%
**52
90%
Norma MRP
<<locked>>
81%
39639
62%
**38
97%
Norma URP
<<locked>>
81%
48863
77%
**46
100%
[Ramshot Grand]*
<<locked>>
81%
39900
63%
**35
94%
Ramshot Hunter
<<locked>>
81%
47892
75%
**36
99%
[Ramshot Magnum]*
<<locked>>
81%
35143
55%
**87
94%
ReloadSwiss RS 14
<<locked>>
81%
29254
46%
**98
100%
ReloadSwiss RS 62
<<locked>>
81%
50169
79%
**82
100%
ReloadSwiss RS 70
<<locked>>
81%
47935
75%
**92
100%
[ReloadSwiss RS 76]*
<<locked>>
81%
30618
48%
**12
92%
[ReloadSwiss RS 80]*
<<locked>>
89%
36550
57%
**66
90%
Rottweil R 904
<<locked>>
81%
43149
68%
**99
95%
Rottweil R 905
<<locked>>
81%
41336
65%
**08
96%
Rottweil R 907
<<locked>>
81%
52489
82%
**59
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
50473
79%
**81
99%
Shooters World Long Rifle
<<locked>>
81%
51648
81%
**43
100%
[Somchem S361]*
<<locked>>
81%
44164
69%
**85
94%
Somchem S365
<<locked>>
81%
46093
72%
**04
100%
Somchem S385
<<locked>>
81%
42105
66%
**92
97%
Vihtavuori N150
<<locked>>
81%
49255
77%
**54
100%
Vihtavuori N160
<<locked>>
81%
52330
82%
**69
100%
[Vihtavuori N165]*
<<locked>>
81%
35578
56%
**28
94%
Vihtavuori N550
<<locked>>
81%
53011
83%
**18
100%
Vihtavuori N555
<<locked>>
81%
41249
65%
**22
100%
[Vihtavuori N560]*
<<locked>>
81%
37782
59%
**69
92%
[Vihtavuori N565]*
<<locked>>
81%
33678
53%
**48
90%
[Vihtavuori N568]*
<<locked>>
89%
38014
60%
**99
90%
Winchester 6.5 StaBALL
<<locked>>
81%
49226
77%
**90
100%
Winchester StaBALL HD
<<locked>>
81%
32532
51%
**59
100%
Winchester Supreme 780
<<locked>>
81%
41713
65%
**82
96%

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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