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Load data for .300 AAC Blackout + .308 | 150gr | Speer Grand Slam

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Recommended Powder(s):

.300 AAC Blackout + .308 | 150gr | Speer Grand Slam

Load Specifications

Bullet:
.308 | 150gr | Speer Grand Slam
Manufacturer SKU:
2026
Bullet Weight:
150gr | 9.7g
Bullet Diameter:
0.308" | 7.82mm
Bullet Length:
1.020" | 25.9mm
Caliber:
.300 AAC Blackout
Case Length (l3):
1.367" | 34.7mm
Cartridge Length (C.O.L.):
2.226" | 56.5mm
Seated Depth:
0.161" | 4.1mm
Shank Seated Depth:
0.161" | 4.1mm
Case Capacity:
25.1 Grains of Water | 1.63 cm³
Primer Size:
Small Rifle (SR)
Max. allowed Pressure:
50763 psi | 3500 bar
LID:
LID_B6149_C348

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

Load data for 36 loads in caliber .300 AAC Blackout with .308 | 150gr | Speer Grand Slam 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".

    • A load must fulfill certain criteria to be listed in the default view below - see here.

    • Our load data might deviate from other sources - see the most common reasons here

    • All loads are based on the bullet and case dimensions shown under "Load Specifications" - see here what to do if you deviate.

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    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 2205
<<locked>>
89%
45049
89%
**85
100%
ADI AR 2207
<<locked>>
96%
32430
64%
**65
97%
[Accurate 1680]*
<<locked>>
95%
45455
90%
**80
94%
Accurate 5744
<<locked>>
87%
45281
89%
**67
97%
Accurate No. 11 FS 👍
<<locked>>
87%
44730
88%
**47
99%
[Alliant Reloder-7]*
<<locked>>
96%
35650
70%
**69
94%
[IMR 4198]*
<<locked>>
96%
31821
63%
**77
93%
IMR 4227
<<locked>>
96%
43758
86%
**41
98%
Lovex D060
<<locked>>
89%
45281
89%
**67
97%
Lovex D063
<<locked>>
85%
43642
86%
**37
97%
Lovex S053
<<locked>>
96%
41495
82%
**24
100%
[Norma 200]*
<<locked>>
96%
29254
58%
**16
92%
ReloadSwiss RS 36
<<locked>>
97%
42322
83%
**67
98%
SNPE Vectan BA6 1/2
<<locked>>
96%
38493
76%
**86
100%
Shooters World Blackout
<<locked>>
85%
43642
86%
**37
97%
Shooters World Buffalo Rifle
<<locked>>
89%
45281
89%
**67
97%
Vihtavuori N110
<<locked>>
92%
44208
87%
**11
100%
Vihtavuori N120
<<locked>>
96%
31328
62%
**09
98%

Max Load - Barrel Length: 23.60''

Powder
Charge
FR
MaxP
%
V(0)
z
ADI AR 2205
<<locked>>
81%
35549
70%
**54
99%
[ADI AR 2207]*
<<locked>>
81%
21306
42%
**99
91%
[Accurate 1680]*
<<locked>>
88%
35839
71%
**36
90%
Accurate 5744
<<locked>>
81%
37521
74%
**49
95%
Accurate No. 11 FS
<<locked>>
81%
36825
73%
**39
98%
[Alliant Reloder-7]*
<<locked>>
87%
26818
53%
**98
90%
[IMR 4198]*
<<locked>>
91%
27818
55%
**91
90%
[IMR 4227]*
<<locked>>
81%
28166
55%
**78
94%
Lovex D060
<<locked>>
81%
35752
70%
**19
95%
Lovex D063
<<locked>>
81%
37956
75%
**52
95%
Lovex S053
<<locked>>
81%
26905
53%
**75
97%
[Norma 200]*
<<locked>>
91%
25222
50%
**31
90%
[ReloadSwiss RS 36]*
<<locked>>
81%
26397
52%
**81
93%
SNPE Vectan BA6 1/2
<<locked>>
81%
26005
51%
**90
100%
Shooters World Blackout
<<locked>>
81%
37956
75%
**52
95%
Shooters World Buffalo Rifle
<<locked>>
81%
35752
70%
**19
95%
Vihtavuori N110
<<locked>>
81%
32300
64%
**50
100%
[Vihtavuori N120]*
<<locked>>
81%
20537
40%
**54
92%

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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