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Load data for .300 AAC Blackout + .308 | 150gr | Barnes X FN

Recommended Powder(s):

.300 AAC Blackout + .308 | 150gr | Barnes X FN

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:
.308 | 150gr | Barnes X FN
Manufacturer SKU:
30819
Bullet Weight:
150gr | 9.7g
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_B611_C348
Last updated:
2026-03-23

Load data for 36 loads in caliber .300 AAC Blackout with .308 | 150gr | Barnes X FN bullet and 18 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>>
88%
45585
90%
**55
100%
ADI AR 2207
<<locked>>
97%
35433
70%
**72
97%
[Accurate 1680]*
<<locked>>
94%
45571
90%
**41
93%
Accurate 5744
<<locked>>
86%
45078
89%
**28
97%
Accurate No. 11 FS 👍
<<locked>>
86%
45368
89%
**21
99%
[Alliant Reloder-7]*
<<locked>>
97%
37855
75%
**62
94%
[IMR 4198]*
<<locked>>
96%
33591
66%
**67
93%
IMR 4227
<<locked>>
96%
45339
89%
**24
98%
Lovex D060
<<locked>>
88%
45078
89%
**28
97%
Lovex D063
<<locked>>
85%
45310
89%
**21
97%
Lovex S053
<<locked>>
96%
43526
86%
**08
100%
[Norma 200]*
<<locked>>
96%
31995
63%
**19
93%
ReloadSwiss RS 36
<<locked>>
97%
44382
87%
**54
98%
SNPE Vectan BA6 1/2
<<locked>>
97%
40727
80%
**77
100%
Shooters World Blackout
<<locked>>
85%
45310
89%
**21
97%
Shooters World Buffalo Rifle
<<locked>>
88%
45078
89%
**28
97%
Vihtavuori N110
<<locked>>
91%
44483
88%
**78
100%
Vihtavuori N120
<<locked>>
96%
33504
66%
**03
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2205
<<locked>>
81%
36883
73%
**34
99%
[ADI AR 2207]*
<<locked>>
81%
23366
46%
**03
92%
[Accurate 1680]*
<<locked>>
87%
36883
73%
**13
90%
Accurate 5744
<<locked>>
81%
39639
78%
**42
95%
Accurate No. 11 FS
<<locked>>
81%
39523
78%
**39
98%
[Alliant Reloder-7]*
<<locked>>
85%
27630
54%
**68
90%
[IMR 4198]*
<<locked>>
90%
28761
57%
**65
90%
[IMR 4227]*
<<locked>>
81%
29559
58%
**62
94%
[Lovex D060]*
<<locked>>
81%
36695
72%
**93
94%
Lovex D063
<<locked>>
81%
40059
79%
**49
95%
Lovex S053
<<locked>>
81%
29269
58%
**75
98%
[Norma 200]*
<<locked>>
89%
26339
52%
**98
90%
[ReloadSwiss RS 36]*
<<locked>>
81%
28311
56%
**75
93%
SNPE Vectan BA6 1/2
<<locked>>
81%
28094
55%
**83
100%
Shooters World Blackout
<<locked>>
81%
40059
79%
**49
95%
[Shooters World Buffalo Rifle]*
<<locked>>
81%
36695
72%
**93
94%
Vihtavuori N110
<<locked>>
81%
33794
67%
**31
100%
[Vihtavuori N120]*
<<locked>>
81%
22379
44%
**54
93%

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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