Hi Forum,
I just got a AR15 in 300 whisper with a 8" barrel.
I can't get it to function
I have 300 whisperbrass made from 221 and some from 223.
For loads I used 150 gn bullet over 18 gn H110 and 220 gn bullet over 9 gn H110.
The bolt won't even open
Anybody have any sugestions ?
Regards,
Geert