top of page

Load data for 7 mm STW + .284 | 156gr | Lapua Naturalis

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

7 mm STW + .284 | 156gr | Lapua Naturalis

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.284 | 156gr | Lapua Naturalis
Manufacturer SKU:
NPL7027 | N564
Bullet Weight:
155gr | 10.0g
Bullet Diameter:
0.284" | 7.21mm
Bullet Length:
1.349" | 34.3mm
Caliber:
7 mm STW load data
Case Length (l3):
2.850" | 72.4mm
Cartridge Length (C.O.L.):
3.595" | 91.3mm
Seated Depth:
0.604" | 15.3mm
Shank Seated Depth:
0.604" | 15.3mm
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_B3132_C1066
Last updated:
2025-01-01

Load data for 108 loads in caliber 7 mm STW with .284 | 156gr | Lapua Naturalis bullet and 54 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".

  • 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.

    .

    Loading_icon.gif

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>>
88%
59930
90%
**76
100%
ADI AR 2213 👍
<<locked>>
91%
59132
89%
**09
100%
ADI AR 2217
<<locked>>
97%
53954
81%
**17
99%
[ADI AR 2218]*
<<locked>>
97%
46833
70%
**54
94%
ADI AR 2225
<<locked>>
97%
48776
73%
**77
100%
Accurate 3100
<<locked>>
91%
60002
90%
**04
100%
Accurate MAGPRO 👍
<<locked>>
91%
60046
90%
**22
99%
Alliant Reloder-16
<<locked>>
84%
59857
90%
**69
100%
Alliant Reloder-19
<<locked>>
88%
59466
89%
**72
100%
Alliant Reloder-22
<<locked>>
91%
59625
89%
**05
100%
Alliant Reloder-23
<<locked>>
92%
59741
90%
**36
100%
Alliant Reloder-25
<<locked>>
96%
59886
90%
**15
100%
Alliant Reloder-26
<<locked>>
87%
59567
89%
**22
100%
Alliant Reloder-33
<<locked>>
97%
51401
77%
**36
96%
[Alliant Reloder-50]*
<<locked>>
97%
44367
66%
**82
93%
Hodgdon H1000
<<locked>>
97%
53954
81%
**17
99%
Hodgdon H4350
<<locked>>
86%
59524
89%
**13
100%
Hodgdon H4831
<<locked>>
94%
59857
90%
**53
99%
Hodgdon H4831 SC
<<locked>>
90%
59857
90%
**53
99%
Hodgdon Hybrid 100V
<<locked>>
86%
60002
90%
**84
100%
Hodgdon Retumbo
<<locked>>
97%
48776
73%
**77
100%
Hodgdon TrailBoss
<<locked>>
97%
36129
54%
**34
100%
IMR 4350
<<locked>>
85%
59509
89%
**10
100%
IMR 4831
<<locked>>
87%
59524
89%
**07
100%
IMR 4955 Enduron
<<locked>>
91%
59727
90%
**30
99%
IMR 7828 SSC 👍
<<locked>>
90%
59756
90%
**25
100%
[IMR 7977 Enduron]*
<<locked>>
96%
59915
90%
**87
94%
IMR 8133 Enduron
<<locked>>
97%
45237
68%
**95
98%
Lovex S070
<<locked>>
83%
59422
89%
**10
100%
Lovex S071
<<locked>>
96%
59538
89%
**00
100%
Norma 204
<<locked>>
84%
59306
89%
**53
100%
Norma 217
<<locked>>
97%
45905
69%
**31
100%
Norma MRP
<<locked>>
89%
59756
90%
**22
100%
Norma URP
<<locked>>
84%
59872
90%
**30
100%
Ramshot Hunter
<<locked>>
84%
59915
90%
**53
100%
Ramshot Magnum
<<locked>>
91%
59843
90%
**76
100%
ReloadSwiss RS 14
<<locked>>
97%
36999
55%
**77
100%
ReloadSwiss RS 70
<<locked>>
83%
59553
89%
**82
100%
ReloadSwiss RS 76 👍
<<locked>>
96%
59872
90%
**84
100%
ReloadSwiss RS 80
<<locked>>
97%
57000
85%
**15
99%
Rottweil R 904
<<locked>>
88%
59350
89%
**27
100%
Rottweil R 905
<<locked>>
89%
60031
90%
**76
100%
Somchem S361
<<locked>>
87%
59306
89%
**90
99%
Somchem S365
<<locked>>
85%
59553
89%
**13
100%
Somchem S385
<<locked>>
88%
59611
89%
**23
100%
Vihtavuori N150
<<locked>>
84%
60017
90%
**35
100%
Vihtavuori N165
<<locked>>
93%
59857
90%
**13
100%
[Vihtavuori N170]*
<<locked>>
97%
50763
76%
**92
94%
Vihtavuori N555
<<locked>>
89%
59843
90%
**40
100%
Vihtavuori N560 👍
<<locked>>
91%
60031
90%
**28
99%
Vihtavuori N565
<<locked>>
94%
59350
89%
**95
100%
Vihtavuori N568
<<locked>>
97%
57029
85%
**02
99%
Vihtavuori N570
<<locked>>
97%
54737
82%
**05
97%
Winchester StaBALL HD
<<locked>>
92%
59857
90%
**38
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2209
<<locked>>
81%
47036
71%
**66
99%
ADI AR 2213
<<locked>>
81%
42395
64%
**10
97%
[ADI AR 2217]*
<<locked>>
81%
32024
48%
**48
92%
[ADI AR 2218]*
<<locked>>
92%
39378
59%
**77
90%
ADI AR 2225
<<locked>>
81%
29428
44%
**21
95%
Accurate 3100
<<locked>>
81%
43729
66%
**51
100%
Accurate MAGPRO
<<locked>>
81%
42511
64%
**10
95%
Alliant Reloder-16
<<locked>>
81%
54143
81%
**84
100%
Alliant Reloder-19
<<locked>>
81%
47340
71%
**66
99%
Alliant Reloder-22
<<locked>>
81%
43207
65%
**17
98%
Alliant Reloder-23
<<locked>>
81%
41713
63%
**64
100%
Alliant Reloder-25
<<locked>>
81%
36158
54%
**02
99%
Alliant Reloder-26
<<locked>>
81%
47123
71%
**31
100%
[Alliant Reloder-33]*
<<locked>>
87%
36463
55%
**15
90%
[Alliant Reloder-50]*
<<locked>>
93%
37942
57%
**48
90%
[Hodgdon H1000]*
<<locked>>
81%
32024
48%
**48
92%
Hodgdon H4350
<<locked>>
81%
50328
75%
**69
100%
Hodgdon H4831
<<locked>>
81%
39987
60%
**08
95%
Hodgdon H4831 SC
<<locked>>
81%
44367
66%
**94
97%
Hodgdon Hybrid 100V
<<locked>>
81%
51213
77%
**62
100%
Hodgdon Retumbo
<<locked>>
81%
29428
44%
**21
95%
Hodgdon TrailBoss
<<locked>>
81%
28718
43%
**80
100%
IMR 4350
<<locked>>
81%
52866
79%
**12
100%
IMR 4831
<<locked>>
81%
48892
73%
**53
100%
IMR 4955 Enduron
<<locked>>
81%
43714
66%
**54
97%
IMR 7828 SSC
<<locked>>
81%
43671
65%
**43
97%
[IMR 7977 Enduron]*
<<locked>>
88%
45847
69%
**44
90%
[IMR 8133 Enduron]*
<<locked>>
83%
28645
43%
**92
90%
Lovex S070
<<locked>>
81%
55230
83%
**44
100%
Lovex S071
<<locked>>
81%
37884
57%
**33
99%
Norma 204
<<locked>>
81%
53766
81%
**61
99%
[Norma 217]*
<<locked>>
81%
27035
41%
**62
92%
Norma MRP
<<locked>>
81%
45759
69%
**85
99%
Norma URP
<<locked>>
81%
55013
82%
**64
100%
Ramshot Hunter
<<locked>>
81%
53708
80%
**64
100%
Ramshot Magnum
<<locked>>
81%
40799
61%
**64
98%
ReloadSwiss RS 14
<<locked>>
81%
29544
44%
**19
100%
ReloadSwiss RS 70
<<locked>>
81%
55303
83%
**23
100%
ReloadSwiss RS 76
<<locked>>
81%
34780
52%
**05
97%
[ReloadSwiss RS 80]*
<<locked>>
81%
31705
48%
**87
90%
Rottweil R 904
<<locked>>
81%
48269
72%
**46
98%
Rottweil R 905
<<locked>>
81%
46659
70%
**59
99%
Somchem S361
<<locked>>
81%
49182
74%
**36
98%
Somchem S365
<<locked>>
81%
52489
79%
**15
100%
Somchem S385
<<locked>>
81%
47398
71%
**33
99%
Vihtavuori N150
<<locked>>
81%
54476
82%
**59
100%
Vihtavuori N165
<<locked>>
81%
40190
60%
**82
98%
[Vihtavuori N170]*
<<locked>>
90%
40379
61%
**89
90%
Vihtavuori N555
<<locked>>
81%
46717
70%
**43
100%
Vihtavuori N560
<<locked>>
81%
43352
65%
**46
96%
Vihtavuori N565
<<locked>>
81%
37956
57%
**98
95%
[Vihtavuori N568]*
<<locked>>
81%
33040
50%
**13
90%
[Vihtavuori N570]*
<<locked>>
86%
37884
57%
**64
90%
Winchester StaBALL HD
<<locked>>
81%
39305
59%
**13
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

bottom of page