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Subsonic load data for 8.6 mm Blackout + .338 | 300gr | Sierra HPBT LR MatchKing

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8.6 mm Blackout + .338 | 300gr | Sierra HPBT LR MatchKing

Subsonic Load Specifications

>> Use the Personalized Load Calculator further below to adjust input parameters. 

Load data for 180 subsonic loads in caliber 8.6 mm Blackout with a .338 | 300gr | Sierra HPBT LR MatchKing bullet based on the specified parameters like bullet length, cartridge length, and case capacity as shown 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".

  • .

    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.

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 AP 100
40%
34%
100%
ADI AP 70N
37%
47%
100%
ADI APS 350
55%
55%
100%
ADI APS 450
54%
53%
100%
ADI AR 2205
38%
23%
99%
ADI AR 2207
41%
19%
95%
ADI AS 30
50%
51%
100%
ADI AS 50N
45%
51%
100%
Accurate 4100
32%
23%
100%
Accurate 5744
35%
22%
93%
Accurate No. 11 FS
35%
21%
97%
Accurate No. 2
39%
42%
100%
Accurate No. 7
27%
28%
100%
Accurate No. 9
28%
25%
100%
Accurate Solo 1000
48%
51%
100%
Accurate Solo 1250
44%
46%
100%
Accurate TCM
30%
26%
100%
Alliant 2400
31%
24%
100%
Alliant BLUE DOT
35%
27%
100%
Alliant BULLSEYE
35%
41%
100%
Alliant POWER PISTOL
31%
31%
100%
Alliant Reloder-7
42%
20%
92%
Alliant UNIQUE
39%
42%
100%
Baschieri & Pellagri 100
47%
51%
100%
Hodgdon Clays
54%
54%
100%
Hodgdon H110
32%
21%
99%
Hodgdon HP38
33%
48%
100%
Hodgdon HS-6
29%
36%
100%
Hodgdon LilGun
32%
21%
100%
Hodgdon Longshot
29%
38%
100%
Hodgdon TiteGroup
34%
52%
100%
Hodgdon Universal
41%
47%
100%
Hodgdon TrailBoss
95%
49%
100%
IMR 4198
44%
20%
92%
IMR 4227
40%
21%
95%
Lovex D032
29%
45%
100%
Lovex D037.1
27%
28%
100%
Lovex D037.2
28%
25%
100%
Lovex D060
36%
22%
93%
Lovex D063
35%
21%
93%
Lovex S011
38%
47%
100%
Lovex S020
38%
45%
100%
Lovex S040
34%
24%
100%
Lovex S053
39%
21%
98%
Maxam CSB 1
48%
49%
100%
Maxam CSB 2
44%
49%
100%
Maxam CSB 3
47%
50%
100%
Maxam CSB 4
47%
51%
100%
Maxam CSB 5
48%
53%
100%
Norma 200
42%
19%
92%
Ramshot Enforcer
30%
24%
100%
Ramshot Silhouette
32%
41%
100%
Ramshot True Blue
28%
37%
100%
Ramshot Zip
33%
47%
100%
ReloadSwiss RS 12
40%
50%
100%
ReloadSwiss RS 14
95%
50%
100%
ReloadSwiss RS 20
39%
42%
100%
ReloadSwiss RS 24
30%
29%
100%
ReloadSwiss RS 30
38%
20%
100%
ReloadSwiss RS 36
39%
20%
94%
Rottweil P 801
39%
51%
100%
Rottweil P 806
32%
33%
100%
SNPE Vectan A0
43%
44%
100%
SNPE Vectan BA 9
42%
46%
100%
SNPE Vectan BA10
51%
53%
100%
SNPE Vectan BA6 1/2
44%
25%
100%
SNPE Vectan BA7 1/2
41%
38%
100%
SNPE Vectan BA9 1/2
42%
46%
100%
Shooters World Blackout
35%
21%
93%
Shooters World Buffalo Rifle
36%
22%
93%
Shooters World Clean Shot
29%
45%
100%
Shooters World Heavy Pistol
28%
25%
100%
Shooters World Major Pistol
27%
28%
100%
Somchem MP200
36%
41%
100%
Somchem MS200
40%
42%
100%
Somchem S221
27%
31%
100%
Somchem S265
39%
24%
99%
Vihtavuori 3N37
35%
36%
100%
Vihtavuori 3N38
35%
30%
100%
Vihtavuori N105
36%
30%
100%
Vihtavuori N110
38%
23%
100%
Vihtavuori N120
43%
19%
97%
Vihtavuori N310
43%
55%
100%
Vihtavuori N320
45%
52%
100%
Vihtavuori N32C Tin Star
68%
56%
100%
Vihtavuori N330
41%
48%
100%
Vihtavuori N340
40%
43%
100%
Vihtavuori N350
38%
37%
100%
Winchester 231
36%
46%
100%
Winchester 296
31%
21%
97%

Max Load - Barrel Length: 

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
25%
17%
100%
ADI AP 70N
25%
29%
100%
ADI APS 350
25%
22%
100%
ADI APS 450
25%
21%
100%
ADI AR 2205
25%
13%
93%
ADI AR 2207
34%
14%
90%
ADI AS 30
25%
22%
100%
ADI AS 50N
25%
24%
100%
Accurate 4100
25%
17%
98%
Accurate 5744
31%
18%
90%
Accurate No. 11 FS
25%
14%
90%
Accurate No. 2
25%
23%
100%
Accurate No. 7
25%
25%
100%
Accurate No. 9
25%
21%
100%
Accurate Solo 1000
25%
22%
100%
Accurate Solo 1250
25%
21%
100%
Accurate TCM
25%
21%
100%
Alliant 2400
25%
18%
100%
Alliant BLUE DOT
25%
17%
100%
Alliant BULLSEYE
25%
26%
100%
Alliant POWER PISTOL
25%
23%
100%
Alliant Reloder-7
39%
18%
90%
Alliant UNIQUE
25%
23%
100%
Baschieri & Pellagri 100
25%
22%
100%
Hodgdon Clays
25%
22%
100%
Hodgdon H110
25%
16%
95%
Hodgdon HP38
25%
34%
100%
Hodgdon HS-6
25%
29%
100%
Hodgdon LilGun
25%
15%
99%
Hodgdon Longshot
25%
31%
100%
Hodgdon TiteGroup
25%
35%
100%
Hodgdon Universal
25%
25%
100%
Hodgdon TrailBoss
39%
16%
100%
IMR 4198
42%
18%
90%
IMR 4227
32%
15%
90%
Lovex D032
25%
36%
100%
Lovex D037.1
25%
25%
100%
Lovex D037.2
25%
21%
100%
Lovex D060
33%
19%
91%
Lovex D063
32%
18%
91%
Lovex S011
25%
27%
100%
Lovex S020
25%
25%
100%
Lovex S040
25%
16%
99%
Lovex S053
25%
12%
90%
Maxam CSB 1
25%
21%
100%
Maxam CSB 2
25%
24%
100%
Maxam CSB 3
25%
22%
100%
Maxam CSB 4
25%
22%
100%
Maxam CSB 5
25%
24%
100%
Norma 200
40%
18%
91%
Ramshot Enforcer
25%
18%
100%
Ramshot Silhouette
25%
28%
100%
Ramshot True Blue
25%
32%
100%
Ramshot Zip
25%
33%
100%
ReloadSwiss RS 12
25%
28%
100%
ReloadSwiss RS 14
35%
15%
100%
ReloadSwiss RS 20
25%
22%
100%
ReloadSwiss RS 24
25%
22%
100%
ReloadSwiss RS 30
25%
12%
94%
ReloadSwiss RS 36
33%
16%
90%
Rottweil P 801
25%
29%
100%
Rottweil P 806
25%
23%
100%
SNPE Vectan A0
25%
21%
100%
SNPE Vectan BA 9
25%
23%
100%
SNPE Vectan BA10
25%
22%
100%
SNPE Vectan BA6 1/2
25%
12%
98%
SNPE Vectan BA7 1/2
25%
19%
100%
SNPE Vectan BA9 1/2
25%
23%
100%
Shooters World Blackout
32%
18%
91%
Shooters World Buffalo Rifle
33%
19%
91%
Shooters World Clean Shot
25%
36%
100%
Shooters World Heavy Pistol
25%
21%
100%
Shooters World Major Pistol
25%
25%
100%
Somchem MP200
25%
25%
100%
Somchem MS200
25%
22%
100%
Somchem S221
25%
28%
100%
Somchem S265
25%
13%
91%
Vihtavuori 3N37
25%
22%
100%
Vihtavuori 3N38
25%
18%
100%
Vihtavuori N105
25%
18%
100%
Vihtavuori N110
25%
13%
98%
Vihtavuori N120
32%
13%
90%
Vihtavuori N310
25%
28%
100%
Vihtavuori N320
25%
25%
100%
Vihtavuori N32C Tin Star
25%
16%
100%
Vihtavuori N330
25%
24%
100%
Vihtavuori N340
25%
23%
100%
Vihtavuori N350
25%
21%
100%
Winchester 231
25%
29%
100%
Winchester 296
25%
16%
93%

Start Load - Barrel Length: 

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.

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