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Load data for .300 AAC Blackout + .308 | 125gr | Sierra Tipped MatchKing

Recommended Powder(s):

.300 AAC Blackout + .308 | 125gr | Sierra Tipped MatchKing

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 125gr | Sierra Tipped MatchKing
Manufacturer SKU:
7725
Bullet Weight:
125gr | 8.1g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
<<locked>>
Caliber:
.300 AAC Blackout load data
Case Length (l3):
1.367" | 34.7mm
Cartridge Length (C.O.L.):
<<locked>>
Seated Depth:
<<locked>>
Shank Seated Depth:
<<locked>>
Case Capacity:
25.1 Grains of Water | 1.63 cm³
Primer Size:
Small Rifle (SR)
Max. allowed Pressure:
50763 psi | 3500 bar
LID:
LID_B5865_C348
Last updated:
2026-01-20

Load data for 28 loads in caliber .300 AAC Blackout with .308 | 125gr | Sierra Tipped MatchKing bullet and 14 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 2205
<<locked>>
96%
45368
89%
**36
99%
[Accurate 5744]*
<<locked>>
94%
45426
89%
**01
93%
Accurate No. 11 FS
<<locked>>
94%
45005
89%
**98
97%
Hodgdon LilGun 👍
<<locked>>
91%
45078
89%
**87
100%
[IMR 4227]*
<<locked>>
96%
35563
70%
**44
93%
[Lovex D060]*
<<locked>>
96%
45426
89%
**01
93%
[Lovex D063]*
<<locked>>
92%
44643
88%
**82
93%
Lovex S040
<<locked>>
89%
45455
90%
**46
100%
Lovex S053
<<locked>>
96%
32750
65%
**37
96%
[ReloadSwiss RS 36]*
<<locked>>
96%
33301
66%
**47
91%
SNPE Vectan BA6 1/2
<<locked>>
96%
31140
61%
**39
100%
[Shooters World Blackout]*
<<locked>>
92%
44643
88%
**82
93%
[Shooters World Buffalo Rifle]*
<<locked>>
96%
45426
89%
**01
93%
Vihtavuori N110
<<locked>>
96%
39218
77%
**26
100%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2205
<<locked>>
81%
29559
58%
**77
95%
[Accurate 5744]*
<<locked>>
85%
35418
70%
**34
90%
[Accurate No. 11 FS]*
<<locked>>
81%
29994
59%
**49
93%
Hodgdon LilGun
<<locked>>
81%
31894
63%
**93
100%
[IMR 4227]*
<<locked>>
91%
30356
60%
**42
90%
[Lovex D060]*
<<locked>>
87%
35418
70%
**34
90%
[Lovex D063]*
<<locked>>
85%
35781
70%
**37
90%
Lovex S040
<<locked>>
81%
36608
72%
**18
100%
[Lovex S053]*
<<locked>>
81%
21248
42%
**62
90%
[ReloadSwiss RS 36]*
<<locked>>
94%
30864
61%
**01
90%
SNPE Vectan BA6 1/2
<<locked>>
81%
21132
42%
**19
98%
[Shooters World Blackout]*
<<locked>>
85%
35781
70%
**37
90%
[Shooters World Buffalo Rifle]*
<<locked>>
87%
35418
70%
**34
90%
Vihtavuori N110
<<locked>>
81%
25179
50%
**67
99%

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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