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Load data for 7 mm STW + .284 | 155gr | Geco EXPRESS

Recommended Powder(s):

7 mm STW + .284 | 155gr | Geco EXPRESS

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 155gr | Geco EXPRESS
Manufacturer SKU:
2416985
Bullet Weight:
155gr | 10.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.268" | 32.2mm
Caliber:
7 mm STW load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
3.595" | 91.3mm
Seated Depth:
0.523" | 13.3mm
Shank Seated Depth:
0.523" | 13.3mm
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_B9001_C1066
Last updated:
2025-01-01

Load data for 118 loads in caliber 7 mm STW with .284 | 155gr | Geco EXPRESS bullet and 59 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>>
89%
59814
90%
**86
100%
ADI AR 2213 👍
<<locked>>
92%
59959
90%
**18
100%
ADI AR 2217
<<locked>>
97%
53229
80%
**13
99%
[ADI AR 2218]*
<<locked>>
97%
46180
69%
**51
94%
ADI AR 2225
<<locked>>
97%
47805
72%
**74
100%
Accurate 3100
<<locked>>
91%
59451
89%
**13
100%
Accurate MAGPRO
<<locked>>
91%
59654
89%
**31
99%
Alliant Reloder-16
<<locked>>
85%
59654
89%
**72
100%
Alliant Reloder-19
<<locked>>
89%
59828
90%
**82
100%
Alliant Reloder-22 👍
<<locked>>
91%
59335
89%
**09
100%
Alliant Reloder-23
<<locked>>
92%
59234
89%
**36
100%
Alliant Reloder-25
<<locked>>
96%
59480
89%
**09
100%
Alliant Reloder-26
<<locked>>
88%
59930
90%
**22
100%
Alliant Reloder-33
<<locked>>
97%
50589
76%
**27
96%
[Alliant Reloder-50]*
<<locked>>
97%
42380
64%
**53
92%
Hodgdon H1000
<<locked>>
97%
53229
80%
**13
99%
Hodgdon H4350
<<locked>>
87%
59509
89%
**27
100%
Hodgdon H4831
<<locked>>
94%
59466
89%
**59
99%
Hodgdon H4831 SC
<<locked>>
90%
59712
89%
**59
99%
Hodgdon Hybrid 100V
<<locked>>
86%
59828
90%
**87
100%
Hodgdon Retumbo
<<locked>>
97%
47805
72%
**74
100%
Hodgdon TrailBoss
<<locked>>
97%
36056
54%
**44
100%
IMR 4350
<<locked>>
85%
59495
89%
**23
100%
IMR 4831
<<locked>>
88%
59654
89%
**17
100%
IMR 4955 Enduron
<<locked>>
92%
59988
90%
**40
99%
IMR 7828 SSC 👍
<<locked>>
90%
59625
89%
**28
100%
[IMR 7977 Enduron]*
<<locked>>
96%
59321
89%
**90
94%
IMR 8133 Enduron
<<locked>>
97%
43932
66%
**72
98%
Lovex S065
<<locked>>
83%
60017
90%
**04
100%
Lovex S070
<<locked>>
84%
59596
89%
**23
100%
Lovex S071
<<locked>>
97%
59901
90%
**17
100%
Norma 204
<<locked>>
85%
59959
90%
**66
100%
Norma 217
<<locked>>
97%
44034
66%
**99
99%
Norma MRP
<<locked>>
89%
59437
89%
**22
100%
Norma URP
<<locked>>
84%
59437
89%
**40
100%
Ramshot Hunter
<<locked>>
85%
59799
90%
**63
100%
Ramshot Magnum
<<locked>>
91%
59553
89%
**72
100%
ReloadSwiss RS 14
<<locked>>
96%
36593
55%
**80
100%
ReloadSwiss RS 62
<<locked>>
83%
60031
90%
**56
100%
ReloadSwiss RS 70
<<locked>>
84%
59451
89%
**89
100%
ReloadSwiss RS 76 👍
<<locked>>
96%
59466
89%
**87
100%
ReloadSwiss RS 80
<<locked>>
97%
56101
84%
**09
99%
Rottweil R 904
<<locked>>
88%
59770
90%
**40
100%
Rottweil R 905
<<locked>>
89%
59886
90%
**69
100%
SNPE Vectan Tubal 7000
<<locked>>
84%
59567
89%
**61
100%
Shooters World Long Rifle
<<locked>>
83%
60017
90%
**04
100%
Somchem S361
<<locked>>
87%
59770
90%
**07
99%
Somchem S365
<<locked>>
85%
59451
89%
**13
100%
Somchem S385
<<locked>>
89%
60002
90%
**40
100%
Vihtavuori N150
<<locked>>
85%
59683
89%
**41
100%
Vihtavuori N165
<<locked>>
94%
59698
89%
**27
100%
[Vihtavuori N170]*
<<locked>>
97%
49748
75%
**79
94%
Vihtavuori N555
<<locked>>
90%
59959
90%
**56
100%
Vihtavuori N560 👍
<<locked>>
91%
59321
89%
**28
99%
Vihtavuori N565
<<locked>>
95%
59437
89%
**02
100%
Vihtavuori N568
<<locked>>
97%
56347
84%
**99
98%
Vihtavuori N570
<<locked>>
97%
53809
81%
**89
96%
Winchester 6.5 StaBALL
<<locked>>
84%
59915
90%
**58
100%
Winchester StaBALL HD
<<locked>>
92%
59292
89%
**28
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
46325
69%
**62
99%
ADI AR 2213
<<locked>>
81%
41524
62%
**97
96%
[ADI AR 2217]*
<<locked>>
81%
30763
46%
**18
92%
[ADI AR 2218]*
<<locked>>
92%
39059
59%
**77
90%
[ADI AR 2225]*
<<locked>>
81%
28137
42%
**82
94%
Accurate 3100
<<locked>>
81%
42061
63%
**35
100%
[Accurate MAGPRO]*
<<locked>>
81%
41220
62%
**94
94%
Alliant Reloder-16
<<locked>>
81%
53214
80%
**74
100%
Alliant Reloder-19
<<locked>>
81%
46151
69%
**56
99%
Alliant Reloder-22
<<locked>>
81%
42105
63%
**97
98%
Alliant Reloder-23
<<locked>>
81%
40770
61%
**54
100%
Alliant Reloder-25
<<locked>>
81%
35230
53%
**82
99%
Alliant Reloder-26
<<locked>>
81%
45847
69%
**05
100%
[Alliant Reloder-33]*
<<locked>>
88%
36579
55%
**21
90%
[Alliant Reloder-50]*
<<locked>>
94%
37695
57%
**48
90%
[Hodgdon H1000]*
<<locked>>
81%
30763
46%
**18
92%
Hodgdon H4350
<<locked>>
81%
49734
75%
**69
100%
Hodgdon H4831
<<locked>>
81%
38957
58%
**85
95%
Hodgdon H4831 SC
<<locked>>
81%
43453
65%
**84
96%
Hodgdon Hybrid 100V
<<locked>>
81%
50009
75%
**59
100%
[Hodgdon Retumbo]*
<<locked>>
81%
28137
42%
**82
94%
Hodgdon TrailBoss
<<locked>>
81%
28732
43%
**90
100%
IMR 4350
<<locked>>
81%
52199
78%
**15
100%
IMR 4831
<<locked>>
81%
47761
72%
**40
100%
IMR 4955 Enduron
<<locked>>
81%
42685
64%
**38
96%
IMR 7828 SSC
<<locked>>
81%
42859
64%
**33
97%
[IMR 7977 Enduron]*
<<locked>>
88%
45237
68%
**48
90%
[IMR 8133 Enduron]*
<<locked>>
85%
28776
43%
**02
90%
Lovex S065
<<locked>>
81%
55825
84%
**41
100%
Lovex S070
<<locked>>
81%
54172
81%
**41
100%
Lovex S071
<<locked>>
81%
36216
54%
**03
98%
Norma 204
<<locked>>
81%
52953
79%
**58
99%
[Norma 217]*
<<locked>>
81%
25556
38%
**20
91%
Norma MRP
<<locked>>
81%
44643
67%
**79
99%
Norma URP
<<locked>>
81%
53838
81%
**51
100%
Ramshot Hunter
<<locked>>
81%
53040
79%
**64
100%
Ramshot Magnum
<<locked>>
81%
39537
59%
**44
98%
ReloadSwiss RS 14
<<locked>>
81%
29283
44%
**26
100%
ReloadSwiss RS 62
<<locked>>
81%
55782
84%
**94
100%
ReloadSwiss RS 70
<<locked>>
81%
54404
82%
**17
100%
ReloadSwiss RS 76
<<locked>>
81%
33620
50%
**79
97%
[ReloadSwiss RS 80]*
<<locked>>
82%
31154
47%
**80
90%
Rottweil R 904
<<locked>>
81%
47210
71%
**33
98%
Rottweil R 905
<<locked>>
81%
45788
69%
**40
99%
SNPE Vectan Tubal 7000
<<locked>>
81%
54723
82%
**95
100%
Shooters World Long Rifle
<<locked>>
81%
55825
84%
**41
100%
Somchem S361
<<locked>>
81%
48298
72%
**26
98%
Somchem S365
<<locked>>
81%
51576
77%
**08
100%
Somchem S385
<<locked>>
81%
46195
69%
**17
99%
Vihtavuori N150
<<locked>>
81%
53316
80%
**53
100%
Vihtavuori N165
<<locked>>
81%
38986
58%
**69
98%
[Vihtavuori N170]*
<<locked>>
90%
40379
61%
**02
90%
Vihtavuori N555
<<locked>>
81%
45368
68%
**26
100%
Vihtavuori N560
<<locked>>
81%
42134
63%
**17
96%
[Vihtavuori N565]*
<<locked>>
81%
36753
55%
**82
94%
[Vihtavuori N568]*
<<locked>>
82%
32663
49%
**07
90%
[Vihtavuori N570]*
<<locked>>
87%
37855
57%
**57
90%
Winchester 6.5 StaBALL
<<locked>>
81%
55100
83%
**99
100%
Winchester StaBALL HD
<<locked>>
81%
38319
57%
**00
100%

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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