[p89cajun]

I am new to reloading so bare with me. I have a lee 3 die set for .45 acp. Do I have to use the sizer die with new unfired brass? Shouldn't it already be sized?

[rcmodel]

Yes, it should be sized.

But I always size & neck expand new brass anyway just to insure proper bullet pull that I know is going to be right.

It is often-times bent or dinged on the mouth from packing & transport.

rcmodel

[345 DeSoto]

What RCMODEL said...

[Bitswap]

I'll supplement what RC said.

If your loading shouldered rounds you should resize to get a consistent headspace, or adjust the die so all rounds will be. Same thing applies to non-shouldered rounds, you need a good starting point.

Accuracy's starting point is consistency.

[SASS#23149]

always a good idea to size new brass,'just in case'.

[calaverasslim]

Yup! What they all said:D

[Walkalong]

Yup.


Guess this one's a no brainer. :D

[The Bushmaster]

Yup...No brainer...

[scrat]

yep past few times when i bought new brass. If you look really hard it was usually dented or just plain out of round on the end usually due to hitting other cases. so i full size all the time on new brass

[sublimaze41]

I always resize plus it gives you one more look at the brass. If you always do it you will never have to worry if it's been done.