top of page

Subsonic load data for .300 AAC Blackout + .308 | 220gr | A-Square MONO RN

You need to be a member to bookmark a  load !

Bookmark this load
>> My bookmarks
.300 AAC Blackout + .308 | 220gr | A-Square MONO RN

Subsonic Load Specifications

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

Load data for 160 subsonic loads in caliber .300 AAC Blackout with a .308 | 220gr | A-Square MONO RN 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) 

  • .

    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
53%
47%
100%
ADI AP 70N
45%
66%
100%
ADI AR 2205
52%
32%
95%
ADI AS 30
66%
83%
100%
ADI AS 50N
55%
73%
100%
Accurate 4100
44%
32%
97%
Accurate No. 11 FS
49%
30%
92%
Accurate No. 2
50%
62%
100%
Accurate No. 5
34%
49%
100%
Accurate No. 7
35%
37%
100%
Accurate No. 9
39%
35%
100%
Accurate Solo 1000
60%
75%
100%
Accurate Solo 1250
58%
71%
100%
Accurate TCM
39%
35%
100%
Alliant 2400
42%
34%
99%
Alliant BLUE DOT
45%
36%
100%
Alliant BULLSEYE
45%
59%
100%
Alliant POWER PISTOL
41%
44%
100%
Alliant UNIQUE
50%
60%
100%
Baschieri & Pellagri 100
61%
80%
100%
Hodgdon Clays
69%
88%
100%
Hodgdon H110
45%
29%
95%
Hodgdon HP38
42%
71%
100%
Hodgdon HS-6
38%
52%
100%
Hodgdon LilGun
44%
26%
99%
Hodgdon Longshot
37%
55%
100%
Hodgdon TiteGroup
43%
79%
100%
Hodgdon Universal
50%
66%
100%
Hodgdon TrailBoss
93%
52%
100%
Lovex D032
40%
74%
100%
Lovex D036
34%
49%
100%
Lovex D037.1
35%
37%
100%
Lovex D037.2
38%
35%
100%
Lovex S011
49%
71%
100%
Lovex S020
50%
68%
100%
Lovex S040
47%
34%
99%
Lovex S053
55%
29%
94%
Maxam CSB 1
62%
74%
100%
Maxam CSB 2
57%
74%
100%
Maxam CSB 3
59%
73%
100%
Maxam CSB 4
60%
78%
100%
Maxam CSB 5
61%
82%
100%
Ramshot Enforcer
41%
31%
99%
Ramshot Silhouette
41%
58%
100%
Ramshot True Blue
37%
55%
100%
Ramshot Zip
42%
72%
100%
ReloadSwiss RS 12
52%
78%
100%
ReloadSwiss RS 14
94%
52%
100%
ReloadSwiss RS 20
52%
62%
100%
ReloadSwiss RS 24
39%
38%
100%
ReloadSwiss RS 30
54%
28%
96%
Rottweil P 801
51%
79%
100%
Rottweil P 806
43%
45%
100%
SNPE Vectan A0
56%
64%
100%
SNPE Vectan BA 9
53%
66%
100%
SNPE Vectan BA10
64%
83%
100%
SNPE Vectan BA6 1/2
60%
33%
100%
SNPE Vectan BA7 1/2
52%
53%
100%
SNPE Vectan BA9 1/2
55%
71%
100%
Shooters World Auto Pistol
34%
49%
100%
Shooters World Clean Shot
40%
74%
100%
Shooters World Heavy Pistol
38%
35%
100%
Shooters World Major Pistol
35%
37%
100%
Shooters World Ultimate Pistol
33%
62%
100%
Somchem MP200
47%
61%
100%
Somchem MS200
52%
63%
100%
Somchem S121
32%
66%
100%
Somchem S221
35%
43%
100%
Somchem S265
53%
33%
94%
Vihtavuori 3N37
46%
52%
100%
Vihtavuori 3N38
47%
42%
100%
Vihtavuori N105
48%
40%
100%
Vihtavuori N110
51%
29%
99%
Vihtavuori N310
55%
87%
100%
Vihtavuori N320
58%
79%
100%
Vihtavuori N32C Tin Star
86%
87%
100%
Vihtavuori N330
52%
69%
100%
Vihtavuori N340
53%
64%
100%
Vihtavuori N350
49%
53%
100%
Winchester 231
46%
70%
100%

Max Load - Barrel Length: 

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AP 100
25%
17%
100%
ADI AP 70N
25%
29%
100%
ADI AR 2205
42%
23%
90%
ADI AS 30
24%
23%
100%
ADI AS 50N
25%
25%
100%
Accurate 4100
32%
20%
90%
Accurate No. 11 FS
48%
28%
90%
Accurate No. 2
26%
23%
100%
Accurate No. 5
25%
31%
100%
Accurate No. 7
25%
22%
99%
Accurate No. 9
25%
19%
94%
Accurate Solo 1000
24%
22%
100%
Accurate Solo 1250
25%
22%
100%
Accurate TCM
25%
19%
95%
Alliant 2400
27%
18%
91%
Alliant BLUE DOT
25%
17%
96%
Alliant BULLSEYE
26%
27%
100%
Alliant POWER PISTOL
25%
22%
100%
Alliant UNIQUE
25%
23%
100%
Baschieri & Pellagri 100
25%
24%
100%
Hodgdon Clays
28%
28%
100%
Hodgdon H110
38%
23%
91%
Hodgdon HP38
25%
34%
100%
Hodgdon HS-6
25%
28%
100%
Hodgdon LilGun
30%
16%
91%
Hodgdon Longshot
25%
30%
100%
Hodgdon TiteGroup
25%
38%
100%
Hodgdon Universal
25%
26%
100%
Hodgdon TrailBoss
50%
23%
100%
Lovex D032
25%
36%
100%
Lovex D036
25%
31%
100%
Lovex D037.1
25%
22%
99%
Lovex D037.2
25%
19%
94%
Lovex S011
25%
27%
100%
Lovex S020
24%
24%
100%
Lovex S040
29%
17%
90%
Lovex S053
49%
24%
90%
Maxam CSB 1
26%
22%
100%
Maxam CSB 2
25%
24%
100%
Maxam CSB 3
25%
23%
100%
Maxam CSB 4
25%
24%
100%
Maxam CSB 5
25%
25%
100%
Ramshot Enforcer
25%
16%
91%
Ramshot Silhouette
25%
27%
100%
Ramshot True Blue
25%
30%
100%
Ramshot Zip
25%
35%
100%
ReloadSwiss RS 12
25%
30%
100%
ReloadSwiss RS 14
47%
21%
100%
ReloadSwiss RS 20
25%
22%
100%
ReloadSwiss RS 24
25%
20%
99%
ReloadSwiss RS 30
44%
20%
91%
Rottweil P 801
26%
31%
100%
Rottweil P 806
25%
21%
100%
SNPE Vectan A0
25%
21%
100%
SNPE Vectan BA 9
25%
22%
100%
SNPE Vectan BA10
26%
25%
100%
SNPE Vectan BA6 1/2
32%
14%
90%
SNPE Vectan BA7 1/2
26%
19%
100%
SNPE Vectan BA9 1/2
25%
23%
100%
Shooters World Auto Pistol
25%
31%
100%
Shooters World Clean Shot
25%
36%
100%
Shooters World Heavy Pistol
25%
19%
94%
Shooters World Major Pistol
25%
22%
99%
Shooters World Ultimate Pistol
25%
43%
100%
Somchem MP200
26%
25%
100%
Somchem MS200
25%
22%
100%
Somchem S121
25%
46%
100%
Somchem S221
25%
26%
100%
Somchem S265
45%
26%
90%
Vihtavuori 3N37
26%
22%
100%
Vihtavuori 3N38
25%
18%
99%
Vihtavuori N105
25%
16%
100%
Vihtavuori N110
34%
16%
91%
Vihtavuori N310
25%
30%
100%
Vihtavuori N320
24%
25%
100%
Vihtavuori N32C Tin Star
32%
23%
100%
Vihtavuori N330
25%
24%
100%
Vihtavuori N340
26%
23%
100%
Vihtavuori N350
25%
19%
100%
Winchester 231
25%
29%
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.

bottom of page