So I finally had a chance to shoot my new .450 upper for the first time this weekend. I loaded up a mag with factory Hornandy ammo, chambered a round and *click*. Nothing. I go the eject the round and it won't budge. I put some real oomph into it and the casing goes flying along with a shower of glitter in the air. As I inspect the casing I notice a very light primer strike. When I look at the opened action I see I burnt powder everywhere. As I inspect the chamber I see the slug still in the chamber.
Since I didn't have a rod handy, I disassembled the rifle and took it to Randy's in Bad Axe. The fellas there were able to remove the projectile. The checked it with a set of go/no go gauges and said the action properly went into battery as intended. However on a live round, it got stuck again. They think that the chamber was not reamed properly at the factory.
I called Bushmaster to have it services and they stated they don't do any work on unserialized parts and I should just return it to Midway. Midway won't take it back because I had the handguard replaced and it is no longer in its factory original configuration. Sadly I parted with the mag light flashlight style handguard so swapping them back is no longer an option.
Are there any gunsmiths here on the forum that have a chamber reamer that can check this out to see if it is really the case? At this point I am kinda stuck. I don't really want to drop $150 on a chamber reamer for something I have (1) never done and (2) will only use once.
Thoughts?