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Load data for 7 mm STW + .284 | 170gr | Hammer HHT

Recommended Powder(s): ADI AR 2213, Accurate MAGPRO, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560

7 mm STW + .284 | 170gr | Hammer HHT

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 170gr | Hammer HHT
Manufacturer SKU:
28170HT
Bullet Weight:
170gr | 11.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
<<locked>>
Caliber:
7 mm STW load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
97.0 Grains of Water | 6.30 cm³
Primer Size:
Large Rifle Magnum (LRM)
Max. allowed Pressure:
66717 psi | 4600 bar
LID:
LID_B12296_C1066
Last updated:
2026-03-08
Recommended Twist Rate:
1:8 - 1:6

Load data for 134 loads in caliber 7 mm STW with .284 | 170gr | Hammer HHT bullet and 67 powders such as ADI AR 2213, Accurate MAGPRO, IMR 7828 SSC, ReloadSwiss RS 76, Vihtavuori N560. 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>>
89%
59683
89%
**64
100%
ADI AR 2213 👍
<<locked>>
91%
59466
89%
**00
100%
ADI AR 2217
<<locked>>
97%
52808
79%
**92
100%
ADI AR 2218
<<locked>>
97%
45600
68%
**46
95%
ADI AR 2225
<<locked>>
97%
47834
72%
**62
100%
Accurate 3100
<<locked>>
91%
59770
90%
**95
100%
Accurate MAGPRO 👍
<<locked>>
91%
59393
89%
**04
99%
Alliant Reloder-16
<<locked>>
84%
59350
89%
**38
100%
Alliant Reloder-19
<<locked>>
89%
59843
90%
**64
100%
Alliant Reloder-22
<<locked>>
91%
59625
89%
**84
100%
Alliant Reloder-23
<<locked>>
93%
59901
90%
**28
100%
Alliant Reloder-25
<<locked>>
96%
59379
89%
**87
100%
Alliant Reloder-26
<<locked>>
88%
59770
90%
**04
100%
Alliant Reloder-33
<<locked>>
97%
50038
75%
**15
97%
[Alliant Reloder-50]*
<<locked>>
97%
42061
63%
**48
93%
Baschieri & Pellagri 109
<<locked>>
93%
59741
90%
**54
98%
Bofors RP15
<<locked>>
94%
59248
89%
**81
100%
Bofors RP30
<<locked>>
97%
55753
84%
**54
100%
Bofors RP5
<<locked>>
91%
59625
89%
**84
100%
Hodgdon H1000
<<locked>>
97%
52808
79%
**92
100%
Hodgdon H4350
<<locked>>
87%
59408
89%
**02
100%
Hodgdon H4831
<<locked>>
94%
60017
90%
**44
100%
Hodgdon H4831 SC
<<locked>>
91%
60017
90%
**44
100%
Hodgdon Hybrid 100V
<<locked>>
86%
59480
89%
**66
100%
Hodgdon Retumbo
<<locked>>
97%
47834
72%
**62
100%
Hodgdon TrailBoss
<<locked>>
96%
35824
54%
**39
100%
IMR 4350
<<locked>>
85%
59872
90%
**02
100%
IMR 4831
<<locked>>
88%
59451
89%
**89
100%
IMR 4955 Enduron
<<locked>>
92%
59683
89%
**22
100%
IMR 7828 SSC 👍
<<locked>>
90%
59596
89%
**04
100%
IMR 7977 Enduron
<<locked>>
97%
59727
90%
**82
95%
IMR 8133 Enduron
<<locked>>
97%
43584
65%
**71
98%
[Lovex D100]*
<<locked>>
97%
52199
78%
**97
92%
Lovex S065
<<locked>>
83%
59567
89%
**72
100%
Lovex S070
<<locked>>
84%
59973
90%
**02
100%
Lovex S071
<<locked>>
97%
59770
90%
**95
100%
Norma 204
<<locked>>
84%
59321
89%
**38
100%
Norma 217
<<locked>>
97%
44251
66%
**00
100%
Norma MRP
<<locked>>
89%
59263
89%
**94
100%
Norma URP
<<locked>>
84%
59843
90%
**18
100%
Ramshot Grand
<<locked>>
88%
59408
89%
**04
100%
Ramshot Hunter
<<locked>>
85%
59973
90%
**38
100%
Ramshot Magnum
<<locked>>
92%
59872
90%
**67
100%
ReloadSwiss RS 14
<<locked>>
96%
36738
55%
**78
100%
ReloadSwiss RS 62
<<locked>>
83%
59988
90%
**28
100%
ReloadSwiss RS 70
<<locked>>
84%
59437
89%
**71
100%
ReloadSwiss RS 76 👍
<<locked>>
96%
59422
89%
**72
100%
ReloadSwiss RS 80
<<locked>>
97%
55492
83%
**90
99%
Rottweil R 904
<<locked>>
88%
59988
90%
**28
100%
Rottweil R 905
<<locked>>
89%
59799
90%
**51
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
59828
90%
**43
100%
[Shooters World 50 BMG]*
<<locked>>
97%
52199
78%
**97
92%
Shooters World Long Rifle
<<locked>>
83%
59567
89%
**72
100%
Somchem S361
<<locked>>
87%
59437
89%
**82
100%
Somchem S365
<<locked>>
85%
59611
89%
**99
100%
Somchem S385
<<locked>>
89%
59915
90%
**25
100%
Vihtavuori N150
<<locked>>
85%
59350
89%
**03
100%
Vihtavuori N165
<<locked>>
94%
59857
90%
**05
100%
[Vihtavuori N170]*
<<locked>>
97%
49356
74%
**74
94%
Vihtavuori N555
<<locked>>
90%
59770
90%
**31
100%
Vihtavuori N560 👍
<<locked>>
91%
59872
90%
**23
100%
Vihtavuori N565
<<locked>>
96%
59988
90%
**94
100%
Vihtavuori N568
<<locked>>
97%
56028
84%
**84
99%
Vihtavuori N570
<<locked>>
97%
53272
80%
**74
97%
Winchester 6.5 StaBALL
<<locked>>
83%
59146
89%
**30
100%
Winchester StaBALL HD
<<locked>>
93%
59712
89%
**20
100%
Winchester Supreme 780
<<locked>>
88%
59901
90%
**15
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
46267
69%
**54
99%
ADI AR 2213
<<locked>>
81%
41466
62%
**89
97%
[ADI AR 2217]*
<<locked>>
81%
30777
46%
**33
93%
[ADI AR 2218]*
<<locked>>
91%
37144
56%
**46
90%
ADI AR 2225
<<locked>>
81%
28021
42%
**00
95%
Accurate 3100
<<locked>>
81%
41930
63%
**26
100%
Accurate MAGPRO
<<locked>>
81%
41278
62%
**92
95%
Alliant Reloder-16
<<locked>>
81%
53171
80%
**59
100%
Alliant Reloder-19
<<locked>>
81%
46050
69%
**44
99%
Alliant Reloder-22
<<locked>>
81%
42032
63%
**98
98%
Alliant Reloder-23
<<locked>>
81%
40756
61%
**49
100%
Alliant Reloder-25
<<locked>>
81%
34998
52%
**77
99%
Alliant Reloder-26
<<locked>>
81%
45672
68%
**00
100%
[Alliant Reloder-33]*
<<locked>>
87%
34621
52%
**77
90%
[Alliant Reloder-50]*
<<locked>>
93%
35853
54%
**16
90%
[Baschieri & Pellagri 109]*
<<locked>>
81%
40538
61%
**10
93%
Bofors RP15
<<locked>>
81%
39073
59%
**30
97%
[Bofors RP30]*
<<locked>>
81%
32474
49%
**08
94%
Bofors RP5
<<locked>>
81%
42032
63%
**98
98%
[Hodgdon H1000]*
<<locked>>
81%
30777
46%
**33
93%
Hodgdon H4350
<<locked>>
81%
49734
75%
**51
100%
Hodgdon H4831
<<locked>>
81%
38885
58%
**84
96%
Hodgdon H4831 SC
<<locked>>
81%
43482
65%
**75
97%
Hodgdon Hybrid 100V
<<locked>>
81%
49864
75%
**31
100%
Hodgdon Retumbo
<<locked>>
81%
28021
42%
**00
95%
Hodgdon TrailBoss
<<locked>>
81%
28601
43%
**91
100%
IMR 4350
<<locked>>
81%
51938
78%
**87
100%
IMR 4831
<<locked>>
81%
47485
71%
**18
100%
IMR 4955 Enduron
<<locked>>
81%
42612
64%
**33
97%
IMR 7828 SSC
<<locked>>
81%
42525
64%
**21
97%
[IMR 7977 Enduron]*
<<locked>>
86%
42975
64%
**97
90%
[IMR 8133 Enduron]*
<<locked>>
83%
27093
41%
**70
90%
[Lovex D100]*
<<locked>>
94%
46920
70%
**15
90%
Lovex S065
<<locked>>
81%
55825
84%
**20
100%
Lovex S070
<<locked>>
81%
54056
81%
**20
100%
Lovex S071
<<locked>>
81%
36129
54%
**05
99%
Norma 204
<<locked>>
81%
52634
79%
**40
100%
[Norma 217]*
<<locked>>
81%
25527
38%
**34
92%
Norma MRP
<<locked>>
81%
44585
67%
**64
100%
Norma URP
<<locked>>
81%
53954
81%
**33
100%
Ramshot Grand
<<locked>>
81%
44991
67%
**77
98%
Ramshot Hunter
<<locked>>
81%
52736
79%
**36
100%
Ramshot Magnum
<<locked>>
81%
39436
59%
**39
99%
ReloadSwiss RS 14
<<locked>>
81%
29428
44%
**34
100%
ReloadSwiss RS 62
<<locked>>
81%
55622
83%
**72
100%
ReloadSwiss RS 70
<<locked>>
81%
53954
81%
**95
100%
ReloadSwiss RS 76
<<locked>>
81%
33417
50%
**84
98%
[ReloadSwiss RS 80]*
<<locked>>
81%
30240
45%
**62
91%
Rottweil R 904
<<locked>>
81%
47297
71%
**31
99%
Rottweil R 905
<<locked>>
81%
45600
68%
**28
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
54418
82%
**77
100%
[Shooters World 50 BMG]*
<<locked>>
94%
46920
70%
**15
90%
Shooters World Long Rifle
<<locked>>
81%
55825
84%
**20
100%
Somchem S361
<<locked>>
81%
47950
72%
**15
98%
Somchem S365
<<locked>>
81%
51387
77%
**90
100%
Somchem S385
<<locked>>
81%
46238
69%
**15
100%
Vihtavuori N150
<<locked>>
81%
53359
80%
**28
100%
Vihtavuori N165
<<locked>>
81%
39088
59%
**64
98%
[Vihtavuori N170]*
<<locked>>
89%
38029
57%
**51
90%
Vihtavuori N555
<<locked>>
81%
45121
68%
**18
100%
Vihtavuori N560
<<locked>>
81%
42076
63%
**18
97%
Vihtavuori N565
<<locked>>
81%
36535
55%
**77
95%
[Vihtavuori N568]*
<<locked>>
81%
31705
48%
**95
91%
[Vihtavuori N570]*
<<locked>>
86%
35737
54%
**20
90%
Winchester 6.5 StaBALL
<<locked>>
81%
54839
82%
**74
100%
Winchester StaBALL HD
<<locked>>
81%
37884
57%
**89
100%
Winchester Supreme 780
<<locked>>
81%
46195
69%
**15
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.

<<locked>>... you need to buy an access license to unlock the data

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