Trimming cases, is it needed every time?

[Ahhnother8]

I forgot to get a case guage to set up my Sizing Die.

Your chamber is the best case gauge available. Start die up high and screw down a little at a time, until the brass will chamber. Done deal.

[Fiveohmike]

That's a big jump in case length, be sure to lube the inside of the case neck.

I only lubed the outside of the case.

I will try another case and use a little bit of lube on the inside of the case neck and measure.

[killshot44]

Your chamber is the best case gauge available. Start die up high and screw down a little at a time, until the brass will chamber. Done deal.

This is good advice, take it....