Search found 4 matches

by Popeye1946
Sun Mar 01, 2015 7:15 pm
Forum: AR15s
Topic: 300 Blackout reloads won't chamber
Replies: 30
Views: 11727

Re: 300 Blackout reloads won't chamber

And will the gun run with factory ammo? Here's the question i had too... sounds like a feed-ramp or magazine issue if its sticking the "bullet" in the ramp and jamming there before chambering ...if you can load and fire FACTORY subs from same mags, then we can determine that the issue is ...
by Popeye1946
Sun Mar 01, 2015 7:12 pm
Forum: AR15s
Topic: 300 Blackout reloads won't chamber
Replies: 30
Views: 11727

Re: 300 Blackout reloads won't chamber

Guest762 wrote:And will the gun run with factory ammo?
Yes factory ammo loads and shoots fine.
by Popeye1946
Sun Mar 01, 2015 3:33 pm
Forum: AR15s
Topic: 300 Blackout reloads won't chamber
Replies: 30
Views: 11727

Re: 300 Blackout reloads won't chamber

DragonAzz wrote:Where are they hanging up?
Have you put any crimp on these?
They won't even go in the feed ramp. End of the brass is almost even with the feed ramp. Bolt just hits them but won't move the bulletin at all.
by Popeye1946
Sun Mar 01, 2015 12:55 pm
Forum: AR15s
Topic: 300 Blackout reloads won't chamber
Replies: 30
Views: 11727

300 Blackout reloads won't chamber

Reloading 300 Blackout using Siera 220gr subsonic with RX7, 12grains. COL 2.245 as per AR15 load book said COL of 2.260. Once I seat the bullet it will not chamber. Does any one have a suggestion? Brass is pre primered from Detroit Ammo Co.