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

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Recommended Powder(s): ADI AR 2207, ADI AR 2219, Alliant Reloder-10x, Baschieri & Pellagri 106, Norma 200

.300 AAC Blackout + .308 | 220gr | A-Square MONO RN

Load Specifications

Bullet:
.308 | 220gr | A-Square MONO RN
Bullet Weight:
220gr | 14.3g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.000" | 25.4mm
Caliber:
.300 AAC Blackout
Case Length (l3):
1.367" | 34.7mm
Cartridge Length (C.O.L.):
2.226" | 56.5mm
Seated Depth:
0.141" | 3.6mm
Shank Seated Depth:
0.141" | 3.6mm
Case Capacity:
25.1 Grains of Water | 1.63 cm³
Primer Size:
Small Rifle (SR)
Max. allowed Pressure:
50763 psi | 3500 bar
LID:
LID_B380_C348
Last updated:
2025-01-01

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

Load data for 46 loads in caliber .300 AAC Blackout with .308 | 220gr | A-Square MONO RN bullet and 23 powders such as ADI AR 2207, ADI AR 2219, Alliant Reloder-10x, Baschieri & Pellagri 106, Norma 200. 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".

  • Muzzle velocity vs. barrel length

    Every 1 inch additional barrel length increases muzzle velocity by approx. 13.1 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 2207 👍
<<locked>>
93%
43627
86%
**45
100%
ADI AR 2219 👍
<<locked>>
97%
45266
89%
**01
98%
Accurate 1680
<<locked>>
84%
44019
87%
**19
99%
[Accurate 2230]*
<<locked>>
96%
39378
78%
**03
92%
[Accurate 2460]*
<<locked>>
96%
37550
74%
**06
94%
Alliant Reloder-10x 👍
<<locked>>
96%
40596
80%
**42
100%
Alliant Reloder-7
<<locked>>
92%
44715
88%
**39
100%
Baschieri & Pellagri 106 👍
<<locked>>
96%
45455
90%
**36
99%
[Hodgdon CFE BLK]*
<<locked>>
91%
43874
86%
**93
94%
Hodgdon H322
<<locked>>
96%
36825
73%
**93
96%
Hodgdon H335
<<locked>>
96%
43584
86%
**88
97%
Hodgdon H4198
<<locked>>
92%
43961
87%
**96
98%
IMR 4198
<<locked>>
96%
42612
84%
**19
100%
[Lovex D073.4]*
<<locked>>
96%
39740
78%
**19
94%
[Lovex D073.5]*
<<locked>>
97%
37550
74%
**06
94%
Norma 200 👍
<<locked>>
96%
45513
90%
**85
100%
ReloadSwiss RS 36
<<locked>>
87%
45469
90%
**32
100%
ReloadSwiss RS 40
<<locked>>
96%
39044
77%
**13
95%
SNPE Vectan SP 10
<<locked>>
96%
44150
87%
**95
97%
[Shooters World Tactical Rifle]*
<<locked>>
97%
43903
86%
**32
93%
[Somchem S321]*
<<locked>>
96%
36608
72%
**99
92%
Vihtavuori N120
<<locked>>
96%
44454
88%
**19
100%
[Winchester 748]*
<<locked>>
96%
36608
72%
**03
92%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2207
<<locked>>
86%
35897
71%
**57
100%
ADI AR 2219
<<locked>>
88%
34258
67%
**57
95%
Accurate 1680
<<locked>>
81%
39943
79%
**70
98%
[Accurate 2230]*
<<locked>>
94%
35563
70%
**54
90%
[Accurate 2460]*
<<locked>>
94%
34258
67%
**60
92%
Alliant Reloder-10x
<<locked>>
90%
33431
66%
**47
99%
Alliant Reloder-7
<<locked>>
86%
37173
73%
**47
99%
Baschieri & Pellagri 106
<<locked>>
91%
38087
75%
**47
97%
[Hodgdon CFE BLK]*
<<locked>>
88%
40190
79%
**50
93%
Hodgdon H322
<<locked>>
93%
33562
66%
**47
95%
[Hodgdon H335]*
<<locked>>
88%
33272
66%
**47
94%
Hodgdon H4198
<<locked>>
89%
40103
79%
**50
97%
IMR 4198
<<locked>>
91%
37333
74%
**50
100%
[Lovex D073.4]*
<<locked>>
92%
34432
68%
**47
92%
[Lovex D073.5]*
<<locked>>
94%
34258
67%
**60
92%
Norma 200
<<locked>>
87%
34069
67%
**47
99%
ReloadSwiss RS 36
<<locked>>
81%
37782
74%
**40
100%
[ReloadSwiss RS 40]*
<<locked>>
91%
34113
67%
**44
93%
[SNPE Vectan SP 10]*
<<locked>>
88%
33678
66%
**57
94%
[Shooters World Tactical Rifle]*
<<locked>>
92%
38101
75%
**63
91%
[Somchem S321]*
<<locked>>
94%
33649
66%
**57
91%
Vihtavuori N120
<<locked>>
91%
38551
76%
**57
100%
[Winchester 748]*
<<locked>>
94%
33373
66%
**54
91%

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.

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