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

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Recommended Powder(s): Accurate 2460, Lovex D073.5, Somchem S321, Winchester 748, Winchester StaBALL Match

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

Load Specifications

Sierra Bullets Load Data | xxlreloading.com

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

Load data for 184 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".

    • a load must fulfill certain criteria to be listed below - see here.

    • our load data might deviate from other sources - see most common reasons here

    • all loads are based on the bullet and case dimensions shown further below - see here what to do if you deviate.

    • you can set your own specifications in the "Personalized Load Calculator"

    • Go to the bottom of the "My Account " page to set the measure system (imperial vs. metric) 

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 4.6 fps

  • .

    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 AR 2206H
97%
81%
99%
ADI AR 2207
91%
99%
100%
ADI AR 2208
97%
69%
97%
ADI AR 2219
93%
97%
100%
Accurate 1680
83%
100%
100%
Accurate 2015
96%
90%
100%
Accurate 2200
97%
88%
98%
Accurate 2230
96%
98%
100%
Accurate 2460
97%
99%
100%
Accurate 2495
97%
79%
100%
Accurate 2520
96%
82%
100%
Accurate 4064
97%
65%
100%
Accurate 4350
97%
47%
92%
Alliant AR-Comp
97%
83%
100%
Alliant Reloder- TS 15.5
96%
64%
98%
Alliant Reloder-10x
96%
98%
100%
Alliant Reloder-15
97%
72%
98%
Alliant Reloder-16
97%
52%
92%
Alliant Reloder-17
96%
57%
96%
Alliant Reloder-7
90%
97%
100%
Baschieri & Pellagri 106
93%
97%
100%
Baschieri & Pellagri 107
97%
80%
98%
Hodgdon BL-C2
97%
83%
100%
Hodgdon Benchmark
97%
90%
100%
Hodgdon CFE BLK
90%
98%
100%
Hodgdon CFE223
97%
70%
96%
Hodgdon H322
97%
91%
100%
Hodgdon H335
93%
97%
100%
Hodgdon H380
97%
67%
96%
Hodgdon H4198
92%
99%
100%
Hodgdon LVR
97%
56%
93%
Hodgdon VARGET
97%
69%
97%
IMR 3031
97%
70%
100%
IMR 4064
97%
67%
97%
IMR 4166 Enduron
96%
67%
92%
IMR 4198
96%
100%
100%
IMR 4227
86%
99%
100%
IMR 4451 Enduron
96%
63%
91%
IMR 4895
97%
74%
98%
IMR 8208 XBR
97%
86%
100%
Lovex D073.4
95%
99%
100%
Lovex D073.5
96%
97%
100%
Lovex D073.6
97%
77%
100%
Lovex S053
87%
99%
100%
Lovex S060
97%
84%
99%
Lovex S062
97%
71%
99%
Lovex S065
97%
57%
92%
Norma 200
92%
99%
100%
Norma 201
97%
79%
100%
Norma 202
96%
78%
100%
Norma 203B
97%
71%
98%
Norma URP
96%
50%
92%
Ramshot Big Game
97%
71%
98%
Ramshot TAC
96%
86%
97%
Ramshot Wild Boar
96%
83%
99%
Ramshot X-Terminator
96%
94%
99%
ReloadSwiss RS 36
86%
99%
100%
ReloadSwiss RS 40
97%
98%
100%
ReloadSwiss RS 50
97%
69%
94%
ReloadSwiss RS 52
97%
67%
99%
ReloadSwiss RS 60
96%
56%
96%
Rottweil R 901
97%
86%
100%
Rottweil R 902
97%
75%
99%
Rottweil R 903
96%
58%
97%
SNPE Vectan BA6 1/2
91%
98%
100%
SNPE Vectan SP 10
94%
100%
100%
SNPE Vectan SP 11
97%
63%
97%
SNPE Vectan SP 7
96%
82%
97%
SNPE Vectan SP 9
97%
78%
99%
SNPE Vectan Tubal 3000
96%
83%
100%
SNPE Vectan Tubal 5000
96%
67%
100%
Shooters World Long Rifle
97%
57%
92%
Shooters World Match Rifle
97%
77%
100%
Shooters World Precision
97%
71%
99%
Shooters World Tactical Rifle
94%
99%
100%
Somchem S321
97%
94%
100%
Somchem S335
97%
82%
100%
Somchem S341
97%
82%
99%
Somchem S355
97%
62%
98%
Vihtavuori N120
93%
98%
100%
Vihtavuori N130
97%
92%
100%
Vihtavuori N133
97%
77%
100%
Vihtavuori N135
96%
58%
100%
Vihtavuori N140
97%
73%
100%
Vihtavuori N150
96%
52%
97%
Vihtavuori N160
97%
56%
93%
Vihtavuori N530
97%
92%
100%
Vihtavuori N540
97%
73%
100%
Vihtavuori N550
97%
55%
93%
Winchester 6.5 StaBALL
97%
56%
95%
Winchester 748
97%
91%
100%
Winchester StaBALL Match
96%
97%
100%

Max Load - Barrel Length: 

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2206H
81%
49%
94%
ADI AR 2207
81%
74%
100%
ADI AR 2208
86%
49%
93%
ADI AR 2219
81%
65%
100%
Accurate 1680
81%
91%
100%
Accurate 2015
81%
57%
100%
Accurate 2200
81%
53%
93%
Accurate 2230
81%
58%
97%
Accurate 2460
81%
58%
98%
Accurate 2495
81%
47%
100%
Accurate 2520
81%
48%
98%
Accurate 4064
84%
44%
98%
Accurate 4350
93%
43%
90%
Alliant AR-Comp
81%
50%
100%
Alliant Reloder- TS 15.5
85%
46%
95%
Alliant Reloder-10x
81%
62%
100%
Alliant Reloder-15
83%
46%
93%
Alliant Reloder-16
94%
48%
91%
Alliant Reloder-17
88%
44%
92%
Alliant Reloder-7
81%
76%
100%
Baschieri & Pellagri 106
81%
65%
100%
Baschieri & Pellagri 107
81%
48%
92%
Hodgdon BL-C2
81%
49%
96%
Hodgdon Benchmark
81%
57%
98%
Hodgdon CFE BLK
81%
73%
99%
Hodgdon CFE223
84%
46%
91%
Hodgdon H322
81%
55%
100%
Hodgdon H335
81%
64%
100%
Hodgdon H380
85%
47%
91%
Hodgdon H4198
81%
71%
100%
Hodgdon LVR
92%
49%
90%
Hodgdon VARGET
86%
49%
93%
IMR 3031
81%
44%
99%
IMR 4064
86%
49%
94%
IMR 4166 Enduron
91%
59%
90%
IMR 4198
81%
65%
100%
IMR 4227
81%
86%
100%
IMR 4451 Enduron
94%
58%
90%
IMR 4895
82%
46%
93%
IMR 8208 XBR
81%
52%
96%
Lovex D073.4
81%
60%
99%
Lovex D073.5
81%
58%
98%
Lovex D073.6
81%
46%
97%
Lovex S053
81%
84%
100%
Lovex S060
81%
53%
95%
Lovex S062
84%
48%
96%
Lovex S065
92%
50%
90%
Norma 200
81%
71%
100%
Norma 201
81%
49%
96%
Norma 202
81%
48%
98%
Norma 203B
83%
46%
94%
Norma URP
93%
46%
90%
Ramshot Big Game
83%
46%
92%
Ramshot TAC
81%
53%
91%
Ramshot Wild Boar
81%
51%
94%
Ramshot X-Terminator
81%
58%
96%
ReloadSwiss RS 36
81%
86%
100%
ReloadSwiss RS 40
81%
60%
99%
ReloadSwiss RS 50
88%
53%
90%
ReloadSwiss RS 52
83%
44%
95%
ReloadSwiss RS 60
89%
44%
92%
Rottweil R 901
81%
54%
99%
Rottweil R 902
83%
49%
96%
Rottweil R 903
88%
45%
94%
SNPE Vectan BA6 1/2
84%
83%
100%
SNPE Vectan SP 10
81%
66%
100%
SNPE Vectan SP 11
85%
45%
92%
SNPE Vectan SP 7
81%
49%
91%
SNPE Vectan SP 9
81%
48%
94%
SNPE Vectan Tubal 3000
82%
54%
99%
SNPE Vectan Tubal 5000
88%
52%
99%
Shooters World Long Rifle
92%
50%
90%
Shooters World Match Rifle
81%
46%
97%
Shooters World Precision
84%
48%
96%
Shooters World Tactical Rifle
81%
63%
98%
Somchem S321
81%
55%
97%
Somchem S335
82%
53%
99%
Somchem S341
81%
49%
94%
Somchem S355
87%
46%
94%
Vihtavuori N120
81%
69%
100%
Vihtavuori N130
81%
59%
100%
Vihtavuori N133
84%
53%
100%
Vihtavuori N135
89%
47%
100%
Vihtavuori N140
84%
49%
99%
Vihtavuori N150
93%
48%
96%
Vihtavuori N160
91%
48%
91%
Vihtavuori N530
81%
55%
97%
Vihtavuori N540
83%
47%
98%
Vihtavuori N550
90%
44%
90%
Winchester 6.5 StaBALL
93%
49%
93%
Winchester 748
81%
54%
98%
Winchester StaBALL Match
81%
57%
97%

Start Load - Barrel Length: 

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.

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