Gods telling you something, you should listen. I would get a refund and spend funds on a stronger rifle design if you plan on shooting more .450
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Gods telling you something, you should listen. I would get a refund and spend funds on a stronger rifle design if you plan on shooting more .450
Sent from my M470BSA using Tapatalk
it looks like the indexing pin forced the metal around it to split.
New barrel assembly arrived from Remington / Bushmaster today. Took them about 3 weeks including shipping both ways which they paid for, both ways. I can't gripe about that. At my request they sent me a 16 inch replacement for the 20 inch that failed. That was kind of them. I'm happy.
Just read your story. Glad they did the right thing.
I've seen maybe a dozen cracked barrel extensions-- all of them after a kaboom of some sort.
My opinion, this one maybe cracked because of the caliber, but I don't know anything about the pressure profile of .450 BM..... or it was stressed upon being torqued onto the barrel and cracked or "tried" to crack then.
In all honesty it may well hold up a good long time like that but obviously that is not the thing to do.
I wonder if it's possibly the result of incorrect heat treat. I can remember a period where BCM couldn't get barrels finished for sale because the availability of correctly hardended extensions was low....
But companies like bushmaster and many others were cranking out product. You get a barrel extension that is either too brittle or too soft, and the assembly is trash before the barrel is shot out.