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Load data for 8.6 mm Blackout + .338 | 300gr | Lapua Scenar

Recommended Powder(s): Hodgdon BL-C2, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match

8.6 mm Blackout + .338 | 300gr | Lapua Scenar

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.338 | 300gr | Lapua Scenar
Manufacturer SKU:
4PL8013 | GB528
Bullet Weight:
300gr | 19.4g
Bullet Diameter:
0.338" | 8.59mm
Bullet Length:
<<locked>>
Caliber:
8.6 mm Blackout load data
Case Length (l3):
1.685" | 42.8mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
50.0 Grains of Water | 3.25 cm³
Primer Size:
Large Rifle (LR)
Max. allowed Pressure:
63092 psi | 4350 bar
LID:
LID_B3204_C1210
Last updated:
2026-01-21
Recommended Twist Rate:
1:11 - 1:9

Load data for 172 loads in caliber 8.6 mm Blackout with .338 | 300gr | Lapua Scenar bullet and 86 powders such as Hodgdon BL-C2, Somchem S321, Vihtavuori N530, Winchester 748, Winchester StaBALL Match. 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 48.4 fps

  • 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 2206H
97%
79%
99%
ADI AR 2207
88%
88%
100%
ADI AR 2208
96%
66%
96%
ADI AR 2219
91%
89%
100%
Accurate 2015
96%
88%
100%
Accurate 2200
97%
86%
98%
Accurate 2230
94%
88%
100%
Accurate 2460
95%
89%
100%
Accurate 2495
97%
77%
100%
Accurate 2520
97%
80%
100%
Accurate 4064
97%
63%
100%
Alliant AR-Comp
96%
79%
100%
Alliant Power Pro 2000-MR
96%
72%
97%
Alliant Reloder- TS 15.5
97%
64%
98%
Alliant Reloder-10x
94%
89%
100%
Alliant Reloder-15
97%
70%
97%
Alliant Reloder-17
97%
56%
95%
Alliant Reloder-7
88%
90%
100%
Baschieri & Pellagri 106
91%
89%
100%
Baschieri & Pellagri 107
96%
77%
97%
Bofors RP3
97%
62%
98%
Hodgdon BL-C2
96%
80%
99%
Hodgdon Benchmark
97%
89%
100%
Hodgdon CFE BLK
87%
88%
100%
Hodgdon CFE223
96%
67%
96%
Hodgdon H322
96%
87%
100%
Hodgdon H335
91%
88%
100%
Hodgdon H380
96%
65%
95%
Hodgdon H4198
89%
88%
100%
Hodgdon LVR
97%
55%
92%
Hodgdon VARGET
96%
65%
96%
IMR 3031
97%
68%
100%
IMR 4064
97%
65%
96%
IMR 4166 Enduron
96%
66%
92%
IMR 4198
92%
88%
100%
IMR 4895
97%
71%
98%
IMR 8208 XBR
97%
84%
100%
Lovex D073.4
92%
88%
100%
Lovex D073.5
95%
89%
100%
Lovex D073.6
97%
76%
100%
Lovex S053
83%
87%
100%
Lovex S060
96%
80%
99%
Lovex S062
96%
67%
99%
Lovex S065
97%
56%
92%
Norma 200
89%
89%
100%
Norma 201
97%
77%
99%
Norma 202
97%
77%
100%
Norma 203B
97%
68%
98%
Ramshot Big Game
96%
68%
97%
Ramshot TAC
97%
85%
97%
Ramshot Wild Boar
97%
82%
99%
Ramshot X-Terminator
95%
87%
99%
ReloadSwiss RS 40
94%
88%
100%
ReloadSwiss RS 50
97%
68%
93%
ReloadSwiss RS 52
96%
72%
97%
ReloadSwiss RS 60
97%
60%
99%
Rottweil R 901
96%
83%
100%
Rottweil R 902
96%
72%
99%
Rottweil R 903
97%
58%
97%
SNPE Vectan BA6 1/2
88%
89%
100%
SNPE Vectan SP 10
91%
88%
100%
SNPE Vectan SP 11
96%
62%
96%
SNPE Vectan SP 7
97%
80%
97%
SNPE Vectan SP 9
96%
75%
98%
SNPE Vectan Tubal 3000
96%
82%
100%
SNPE Vectan Tubal 5000
96%
66%
100%
Shooters World Long Rifle
97%
56%
92%
Shooters World Match Rifle
97%
76%
100%
Shooters World Precision
96%
67%
99%
Shooters World Tactical Rifle
92%
89%
100%
Somchem S321
95%
87%
100%
Somchem S335
97%
80%
100%
Somchem S341
96%
78%
98%
Somchem S355
97%
61%
97%
Vihtavuori N120
90%
89%
100%
Vihtavuori N130
97%
90%
100%
Vihtavuori N133
96%
74%
100%
Vihtavuori N135
96%
56%
100%
Vihtavuori N140
97%
71%
100%
Vihtavuori N160
97%
54%
92%
Vihtavuori N530
97%
89%
100%
Vihtavuori N540
97%
71%
100%
Vihtavuori N550
96%
53%
93%
Winchester 6.5 StaBALL
96%
54%
94%
Winchester 748
96%
88%
100%
Winchester StaBALL Match
94%
88%
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
[ADI AR 2206H]*
<<locked>>
81%
30647
49%
**44
94%
ADI AR 2207
<<locked>>
81%
45107
71%
**59
100%
[ADI AR 2208]*
<<locked>>
87%
31633
50%
**44
93%
ADI AR 2219
<<locked>>
81%
40466
64%
**85
100%
Accurate 2015
<<locked>>
81%
34737
55%
**73
100%
[Accurate 2200]*
<<locked>>
81%
33069
52%
**47
92%
Accurate 2230
<<locked>>
81%
35650
57%
**03
96%
Accurate 2460
<<locked>>
81%
35621
56%
**13
98%
Accurate 2495
<<locked>>
81%
28747
46%
**50
100%
Accurate 2520
<<locked>>
81%
29399
47%
**57
97%
Accurate 4064
<<locked>>
86%
28137
45%
**44
98%
Alliant AR-Comp
<<locked>>
81%
30487
48%
**67
100%
[Alliant Power Pro 2000-MR]*
<<locked>>
83%
30008
48%
**70
90%
Alliant Reloder- TS 15.5
<<locked>>
87%
29298
46%
**50
95%
Alliant Reloder-10x
<<locked>>
81%
38261
61%
**22
100%
[Alliant Reloder-15]*
<<locked>>
85%
30153
48%
**57
93%
[Alliant Reloder-17]*
<<locked>>
89%
27978
44%
**44
91%
Alliant Reloder-7
<<locked>>
81%
46427
74%
**68
100%
Baschieri & Pellagri 106
<<locked>>
81%
40422
64%
**13
100%
[Baschieri & Pellagri 107]*
<<locked>>
82%
30487
48%
**47
92%
[Bofors RP3]*
<<locked>>
87%
28036
44%
**44
94%
Hodgdon BL-C2
<<locked>>
81%
30110
48%
**73
95%
Hodgdon Benchmark
<<locked>>
81%
35012
55%
**63
97%
Hodgdon CFE BLK
<<locked>>
81%
45411
72%
**75
99%
[Hodgdon CFE223]*
<<locked>>
84%
29022
46%
**44
90%
Hodgdon H322
<<locked>>
81%
34360
54%
**99
99%
Hodgdon H335
<<locked>>
81%
39450
63%
**81
100%
[Hodgdon H380]*
<<locked>>
87%
29704
47%
**44
91%
Hodgdon H4198
<<locked>>
81%
43961
70%
**36
100%
[Hodgdon LVR]*
<<locked>>
94%
31676
50%
**86
90%
[Hodgdon VARGET]*
<<locked>>
88%
31952
51%
**50
93%
IMR 3031
<<locked>>
83%
28413
45%
**44
99%
[IMR 4064]*
<<locked>>
89%
32358
51%
**57
94%
[IMR 4166 Enduron]*
<<locked>>
92%
37173
59%
**90
90%
IMR 4198
<<locked>>
81%
40190
64%
**06
100%
[IMR 4895]*
<<locked>>
83%
29167
46%
**47
93%
IMR 8208 XBR
<<locked>>
81%
32547
52%
**57
96%
Lovex D073.4
<<locked>>
81%
37579
60%
**32
98%
Lovex D073.5
<<locked>>
81%
35621
56%
**13
98%
Lovex D073.6
<<locked>>
82%
28645
45%
**44
97%
Lovex S053
<<locked>>
81%
52112
83%
**49
100%
Lovex S060
<<locked>>
83%
34287
54%
**47
95%
Lovex S062
<<locked>>
86%
30879
49%
**50
96%
[Lovex S065]*
<<locked>>
93%
31676
50%
**50
90%
Norma 200
<<locked>>
81%
43337
69%
**65
100%
Norma 201
<<locked>>
83%
31807
50%
**50
96%
Norma 202
<<locked>>
82%
30560
48%
**50
98%
[Norma 203B]*
<<locked>>
85%
29573
47%
**50
93%
[Ramshot Big Game]*
<<locked>>
84%
29283
46%
**44
92%
[Ramshot TAC]*
<<locked>>
81%
32648
52%
**50
91%
[Ramshot Wild Boar]*
<<locked>>
81%
31198
49%
**63
94%
Ramshot X-Terminator
<<locked>>
81%
35621
56%
**90
95%
ReloadSwiss RS 40
<<locked>>
81%
36405
58%
**19
98%
[ReloadSwiss RS 50]*
<<locked>>
90%
34432
55%
**90
90%
[ReloadSwiss RS 52]*
<<locked>>
82%
28514
45%
**57
91%
ReloadSwiss RS 60
<<locked>>
87%
28224
45%
**57
95%
Rottweil R 901
<<locked>>
81%
33301
53%
**57
98%
Rottweil R 902
<<locked>>
85%
32242
51%
**54
96%
[Rottweil R 903]*
<<locked>>
89%
28921
46%
**54
94%
SNPE Vectan BA6 1/2
<<locked>>
85%
53156
84%
**44
100%
SNPE Vectan SP 10
<<locked>>
81%
40625
64%
**88
100%
[SNPE Vectan SP 11]*
<<locked>>
87%
29559
47%
**57
92%
[SNPE Vectan SP 7]*
<<locked>>
83%
31778
50%
**54
91%
[SNPE Vectan SP 9]*
<<locked>>
82%
30472
48%
**40
94%
SNPE Vectan Tubal 3000
<<locked>>
84%
34998
55%
**50
99%
SNPE Vectan Tubal 5000
<<locked>>
90%
33736
53%
**50
99%
[Shooters World Long Rifle]*
<<locked>>
93%
31676
50%
**50
90%
Shooters World Match Rifle
<<locked>>
82%
28645
45%
**44
97%
Shooters World Precision
<<locked>>
86%
30879
49%
**50
96%
Shooters World Tactical Rifle
<<locked>>
81%
38537
61%
**22
97%
Somchem S321
<<locked>>
81%
34011
54%
**06
97%
Somchem S335
<<locked>>
84%
34127
54%
**54
99%
[Somchem S341]*
<<locked>>
82%
30821
49%
**40
93%
[Somchem S355]*
<<locked>>
88%
29631
47%
**50
94%
Vihtavuori N120
<<locked>>
81%
43004
68%
**99
100%
Vihtavuori N130
<<locked>>
81%
35781
57%
**54
100%
Vihtavuori N133
<<locked>>
86%
34708
55%
**54
100%
Vihtavuori N135
<<locked>>
90%
29762
47%
**40
99%
Vihtavuori N140
<<locked>>
85%
30922
49%
**40
98%
[Vihtavuori N160]*
<<locked>>
93%
30705
49%
**54
91%
Vihtavuori N530
<<locked>>
81%
34084
54%
**93
97%
Vihtavuori N540
<<locked>>
84%
29892
47%
**47
98%
[Vihtavuori N550]*
<<locked>>
92%
29356
47%
**70
90%
[Winchester 6.5 StaBALL]*
<<locked>>
94%
31270
50%
**40
93%
Winchester 748
<<locked>>
81%
33185
53%
**16
97%
Winchester StaBALL Match
<<locked>>
81%
35346
56%
**42
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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