Sorry in advance for the novel,
The story goes I have a Remington 700 I had rebarreled with an AAC 300 blackout. Haven't had a ton of time to shoot it but functionally it shot jacketed ammo fine. The problem was when I attempted to chamber some cast NOE 247s... Would not chamber. I initially wrote it off as I messed up the case forming step (even though they function my 10"AR fine). While reading another 300 thread a remember mentioned that AAC had a run of very narrowly chambered barrels...enter cerrosafe.
So I ordered some Cerrosafe alloy clone from roto metals and thought I would get some answers. As luck has it is not as simple as melt alloy block barrel warm barrel pour and measure. First mistake was I didn't remove the Timney trigger and got over flow in it
Then when I I tapped the casting out it was all wrinkled so I figured I'd remove the trigger and try again attempt 2 casting broke... Attempt 3 casting/patch stuck solution was to walk away at that point.
My plan is to drop the action and trigger group into boiling(or almost boiling water) and try to melt the overflow and stuck casting out. Then clean everything and stare at it for a while to determine if I want to throw the cerrosafe out and just neck turn my cases until the fit ...or try again. Any help is greatly appreciated. Tips tricks word to run away...all ears at this point.
Thanks for the help and sorry for the novel!