300 blackout question----forster 3 in 1

[rcschummers]

Would the forster 3 in 1 case trimmer for a .308 work for the 300 blackout considering they use the same diameter projectile?

Thanks.

[StraightShooter]

Yes it will.

[rcschummers]

Thank you sir

[ar15barrels]

It will work for trimming already formed cases, but it would not work for shortening 223 cases to 300 blackout length.
You would need to form the cases and shorten them most of the way before final trimming.