What sizing die should I use?

[BH Shooter]

Being a new reloader, I need to seek out the advice of those wise and more knowledgeable than myself. I just bought the Lee Deluxe Die Set to start reloading for my DPMS LR308AP4 7.62x51. It comes with two sizing dies, full length and a collet neck sizing die. My new-be question is; can I use just the neck sizing die or do I/ have to use the full length die because i'm reloading for an automatic? I figured I should ask first before i screw up my first batch of rifle rounds. Thanks in advance.

 

[Doug b]

I think all here will agree full length resize for an auto-loader.

 

[Walkalong]

Yep. Full length size your brass for your auto loader.

Welcome to THR

 

[Remo-99]

FL size for autoloaders.
Either FL or neck sizing for boltguns.

 

[BH Shooter]

Thanks Guys, I'll have to head back to the bench after I spend some time with the Wife today. I have to get cracking, time to make Mothers Day Breakfast! Thanks for the Welcome Walkalong.