Lyman primer reamer = really hard to seat?

[Icefire]

I bought a Lyman prep center, which include a primer pocket uniformer, cleaner and reamer.

I sized my once fired from new Hornady brass 300 Win Mag, Uniformed, reamed than cleaned the pocket.

Used my LNL AP to prime but it would not go in.
I used a RCBS Universal to push the primer in... I needed almost 2 habd on the thing?!?

I tought they would go off, once a ridge or something passed, it seated normally.

Anyone got the same??

 

[adamg]

Finding a good rotary tool that cuts crimps is tricky. Many of them suck at it.

 

[Icefire]

There is no crimp, I bought brand new brass, loaded and fired them

I deprimed, cleaned, Resized with FL bushing die (until it fit a gauge), debur/chamfer the neck, uniform/ream/clean primer pocket. Than tried to prime on the press.

I did 50 new brass just before with no problem.

 

[Buckmastr]

Do the primers go in better if you don't touch the primer pocket?

 

[Icefire]

Do the primers go in better if you don't touch the primer pocket?

I tryed one, not hard at all

 

[bigedp51]

If the primers were not crimped you do not need the Lyman primer pocket reamer. If you do anything you could uniform the primer pocket depth.

The Lyman primer pocket reamer can score the primer pocket walls and cause hard seating if the reamer is tilted.

If I have a crimped primer pocket I use a RCBS crimp remover for the RCBS case prep station below. This reamer can not touch the primer pocket walls and removes the crimp and bevels the mouth of the primer pocket.

And to uniform primer pocket depth I use the RCBS carbide primer pocket uniformer for the RCBS Prep Center.

 

[Icefire]

Guess they should warn about it. I only did 10 case so it’s okay but I was to do 100+