Thread: Neck Tension Issue... I think

Usually the expander button on FL sizing die will clean a lot of the neck soot out once it has been pushed in and out again.

All you need to do is purchase some dry powdered graphite lube (the proper reloading stuff) and run a small amount inside the neck before you charge the case with powder.

This gives the projectile something to seat on which enables much better consistency and will solve your problem.

Google 'Imperial dry neck lube'

At the same time buy a proper VLD case chamfering tool as those ELD'x projectiles like a sharper chamfer angle to get them started and avoid shaving off copper jacket.