[QUOTE...]Bolt lock up strong enough for 450 bushmaster, 50 Beowulf and Rem 30 AR?[/QUOTE]
You are supplying the barrel with its extension, and the bolt.
The bolt locks into the barrel extension.
Whether the bolt lockup is acceptable depends on the parts that you are supplying.
You are supplying the barrel with its extension, and the bolt.
The bolt locks into the barrel extension.
Whether the bolt lockup is acceptable depends on the parts that you are supplying.