Mine was no problem. I've fire formed factory ammo in mine just fine and also fire formed handloads using the load I developed for the AI.
Later on I acquired a substantial amount of 5.56 ammo made by Norma in the 1970's that cannot be fired in my other bolt 223's but fireform beautifully in the AI. And they shoot well too...
Wouldnt have thought you would get good results from factory ammo,bought a batch of lapua to use in mine ,just out of intrest what loads do you use stormrider
I have a slow twist barrel (factory Rem) and found that 27.3g of AA2230 using Win brass and the Sierra 52g match bullet and Rem 7 1/2 BR Primers gave me great accuracy. Have never got around to chronographing it yet, though.
Ive heard some good reports from lads over here using 52 gr match bullets may just give them a go just dont know how the 1 in 14 would handle them, ive also heard that some use upto 60 gr bullets in 1 in 14 thanx for the reply stormrider