Thread: Tight primer pockets

Getting some 130 ttsx to test in the 308 so was prepping some once fired hornady brass as all the lapua is already loaded.
Tried the lee autoprimer.......nup then the redding priming gadget on my press.....nup. Had a look at the primer pockets and they have a gay little lip there. Managed to get one halfway........then all the way with much looking the other direction.

Turns out I used my deburring tool on the pockets to get rid of the lip, made it heaps easier but they are still tight as to get in.

Anyone else had this? What the deal Neal?

Fed Mag primers and Large rifle same same

Yup currently priming lapua .260 with Fed210M, still tight as fuck on 2nd firing, I think it's the Fed primers, slightly oversize

No problems with CCI

Originally Posted by gimp

Yup currently priming lapua .260 with Fed210M, still tight as fuck on 2nd firing, I think it's the Fed primers, slightly oversize

The lapua is fine in the 308, the hornady is fine in rem mag (even once fired) its just the hornady in 308 so far......cheers will make do with the feds and keep my safety glasses on

Fill the case to the top with powder then seat a bullet then pull it and fill to top again and reseat then fire...will loosen those pockets right up !

Originally Posted by veitnamcam

Fill the case to the top with powder then seat a bullet then pull it and fill to top again and reseat then fire...will loosen those pockets right up !

Will loosen more the me primer pocket

is in once fired factory Ammo.
I think you will find, the brass has had the primer pocket crimped, I have had the same problem, in federal .204, Hornady 17 hornet and Hornady something else, 6mm Remington I think.

Yep

Sounds like the primer pockets are crimped.

Your deburrer or a primer pocket reamer will take care of that for you Gibo.

Cheers
Pete

Yup factory once fired. Explain it thanks. Why tf crimp the primer?

Yep Noticed that --- Lupua brand new brass 308 , Fed210M primers, actually seems like the brass pockets on some are slightly small, pocket cleaner jams. I’m using my Lee press primer seater you can really lean on that, wouldn’t have a show with the hand gizmo. Also Remington 9.5 were similar, CAC OK and Winchester I have thrown away after news of blow backs wrecking bolts

Originally Posted by Gibo

Yup factory once fired. Explain it thanks. Why tf crimp the primer?

Crimped primers are usually military spec items.

Cheers
Pete

Originally Posted by veitnamcam

Fill the case to the top with powder then seat a bullet then pull it and fill to top again and reseat then fire...will loosen those pockets right up !

Ahh, so that was what I was doing wrong, nly filled it up to the brim and seated a bullet, never pulled the bullet and topped it up before testing. Primer pockets are still tight......................must try harder

I use Lapua brass in my 6.5, never had any "lips" on the primer pockets?

Hornady bro. My lapua brass is sweet.

Originally Posted by mikee

Ahh, so that was what I was doing wrong, only filled it up to the brim and seated a bullet, never pulled the bullet and topped it up before testing. Primer pockets are still tight......................must try harder

ah no when you top it up use a different powder just to be sure.