Originally Posted by AJ Peacock
It's not uncommon for cartridges fired in one rifle to not chamber in another rifle. Especially if one rifle is a factory chamber and the other is a custom.
I'd get some new brass and keep it segregated (I do this will all my rifles).
AJ is dead on.
If the custom chamber is SAAMI spec. it will take factory ammo (Factory ammo is sized small
to fit in any chamber) with what I call small base dies.
IF your chamber will not take new loaded factory ammo then it has a chamber that is smaller/
tighter than SAAMI chambers.
If you cant size this small there are several die makers that make small base dies or have
enough adjustment to do so. The Hornady New Dimension Dies are just one of this type.
I hope this helps and keep your brass separated as AJ recommended.
J E CUSTOM