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Subsonic load data for .300 AAC Blackout + .308 | 200gr | Lapua Mega

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.300 AAC Blackout + .308 | 200gr | Lapua Mega

Subsonic Load Specifications

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

Load data for 156 subsonic loads in caliber .300 AAC Blackout with a .308 | 200gr | Lapua Mega 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
50%
39%
100%
ADI AP 70N
46%
64%
100%
ADI APS 350
69%
82%
100%
ADI APS 450
67%
78%
100%
ADI AR 2205
54%
31%
92%
ADI AS 30
62%
73%
100%
ADI AS 50N
55%
69%
100%
Accurate 4100
46%
30%
94%
Accurate No. 2
48%
54%
100%
Accurate No. 5
33%
43%
100%
Accurate No. 7
36%
34%
100%
Accurate No. 9
39%
31%
98%
Accurate Solo 1000
59%
71%
100%
Accurate Solo 1250
57%
64%
100%
Accurate TCM
40%
33%
99%
Alliant 2400
44%
31%
97%
Alliant BLUE DOT
46%
34%
100%
Alliant BULLSEYE
42%
50%
100%
Alliant POWER PISTOL
38%
35%
100%
Alliant UNIQUE
49%
54%
100%
Baschieri & Pellagri 100
60%
73%
100%
Hodgdon Clays
69%
84%
100%
Hodgdon HP38
42%
67%
100%
Hodgdon HS-6
37%
45%
100%
Hodgdon LilGun
46%
24%
96%
Hodgdon Longshot
36%
48%
100%
Hodgdon TiteGroup
41%
72%
100%
Hodgdon Universal
50%
61%
100%
Hodgdon TrailBoss
95%
50%
100%
Lovex D032
37%
62%
100%
Lovex D036
33%
42%
100%
Lovex D037.1
36%
34%
100%
Lovex D037.2
40%
32%
99%
Lovex S011
48%
66%
100%
Lovex S020
47%
57%
100%
Lovex S040
49%
31%
97%
Maxam CSB 1
60%
66%
100%
Maxam CSB 2
57%
69%
100%
Maxam CSB 3
59%
69%
100%
Maxam CSB 4
56%
67%
100%
Maxam CSB 5
60%
78%
100%
Ramshot Enforcer
43%
30%
98%
Ramshot Silhouette
41%
53%
100%
Ramshot True Blue
36%
48%
100%
Ramshot Zip
41%
65%
100%
ReloadSwiss RS 12
50%
71%
100%
ReloadSwiss RS 14
93%
48%
100%
ReloadSwiss RS 20
50%
54%
100%
ReloadSwiss RS 24
40%
35%
100%
ReloadSwiss RS 30
56%
26%
93%
Rottweil P 801
50%
72%
100%
Rottweil P 806
42%
39%
100%
SNPE Vectan A0
56%
59%
100%
SNPE Vectan BA 9
53%
62%
100%
SNPE Vectan BA10
62%
78%
100%
SNPE Vectan BA6 1/2
60%
29%
99%
SNPE Vectan BA7 1/2
51%
47%
100%
SNPE Vectan BA9 1/2
52%
61%
100%
Shooters World Auto Pistol
33%
42%
100%
Shooters World Clean Shot
37%
62%
100%
Shooters World Heavy Pistol
40%
32%
99%
Shooters World Major Pistol
36%
34%
100%
Shooters World Ultimate Pistol
31%
54%
100%
Somchem MP200
46%
54%
100%
Somchem MS200
52%
58%
100%
Somchem S121
31%
58%
100%
Somchem S221
34%
37%
100%
Vihtavuori 3N37
45%
45%
100%
Vihtavuori 3N38
46%
36%
100%
Vihtavuori N105
47%
33%
100%
Vihtavuori N110
52%
27%
96%
Vihtavuori N310
55%
83%
100%
Vihtavuori N320
54%
68%
100%
Vihtavuori N32C Tin Star
87%
84%
100%
Vihtavuori N330
52%
64%
100%
Vihtavuori N340
51%
56%
100%
Vihtavuori N350
49%
48%
100%
Winchester 231
46%
65%
100%

Max Load - Barrel Length: 

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
25%
15%
99%
ADI AP 70N
24%
26%
100%
ADI APS 350
28%
26%
100%
ADI APS 450
26%
23%
100%
ADI AR 2205
52%
29%
91%
ADI AS 30
24%
22%
100%
ADI AS 50N
25%
23%
100%
Accurate 4100
40%
24%
91%
Accurate No. 2
25%
20%
100%
Accurate No. 5
25%
29%
100%
Accurate No. 7
25%
20%
97%
Accurate No. 9
26%
18%
91%
Accurate Solo 1000
24%
21%
100%
Accurate Solo 1250
24%
19%
100%
Accurate TCM
25%
17%
91%
Alliant 2400
34%
21%
91%
Alliant BLUE DOT
25%
15%
91%
Alliant BULLSEYE
25%
24%
100%
Alliant POWER PISTOL
26%
20%
100%
Alliant UNIQUE
25%
22%
100%
Baschieri & Pellagri 100
24%
21%
100%
Hodgdon Clays
24%
22%
100%
Hodgdon HP38
25%
33%
100%
Hodgdon HS-6
25%
26%
100%
Hodgdon LilGun
38%
18%
91%
Hodgdon Longshot
25%
27%
100%
Hodgdon TiteGroup
25%
35%
100%
Hodgdon Universal
26%
24%
100%
Hodgdon TrailBoss
49%
21%
100%
Lovex D032
25%
34%
100%
Lovex D036
25%
28%
100%
Lovex D037.1
25%
20%
97%
Lovex D037.2
25%
17%
90%
Lovex S011
26%
26%
100%
Lovex S020
25%
23%
100%
Lovex S040
38%
21%
91%
Maxam CSB 1
24%
19%
100%
Maxam CSB 2
25%
23%
100%
Maxam CSB 3
25%
22%
100%
Maxam CSB 4
26%
23%
100%
Maxam CSB 5
25%
24%
100%
Ramshot Enforcer
32%
19%
91%
Ramshot Silhouette
26%
26%
100%
Ramshot True Blue
25%
27%
100%
Ramshot Zip
25%
32%
100%
ReloadSwiss RS 12
25%
27%
100%
ReloadSwiss RS 14
48%
20%
100%
ReloadSwiss RS 20
24%
19%
100%
ReloadSwiss RS 24
25%
18%
97%
ReloadSwiss RS 30
54%
24%
91%
Rottweil P 801
25%
29%
100%
Rottweil P 806
25%
19%
100%
SNPE Vectan A0
26%
20%
100%
SNPE Vectan BA 9
25%
21%
100%
SNPE Vectan BA10
24%
23%
100%
SNPE Vectan BA6 1/2
41%
17%
91%
SNPE Vectan BA7 1/2
25%
17%
100%
SNPE Vectan BA9 1/2
25%
22%
100%
Shooters World Auto Pistol
25%
28%
100%
Shooters World Clean Shot
25%
34%
100%
Shooters World Heavy Pistol
25%
17%
90%
Shooters World Major Pistol
25%
20%
97%
Shooters World Ultimate Pistol
25%
40%
100%
Somchem MP200
25%
22%
100%
Somchem MS200
25%
21%
100%
Somchem S121
25%
43%
100%
Somchem S221
25%
23%
100%
Vihtavuori 3N37
25%
20%
100%
Vihtavuori 3N38
25%
16%
96%
Vihtavuori N105
25%
14%
98%
Vihtavuori N110
41%
18%
91%
Vihtavuori N310
25%
29%
100%
Vihtavuori N320
25%
23%
100%
Vihtavuori N32C Tin Star
33%
23%
100%
Vihtavuori N330
25%
23%
100%
Vihtavuori N340
25%
20%
100%
Vihtavuori N350
25%
18%
100%
Winchester 231
26%
28%
100%

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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