Primer seating ?

[mobertok]

Hi everyone, probably an easy answer for my ? Fairly new to reloading. Would I be stupid to try and seat my primer in a little deeper with a fully loaded round? Thank you.

 

[Paddyd]

yes.. The safe way would be to pull the bullet and empty the case first.

Also if you scrape the carbon from the seat they will all go in all the way every time.

 

[mobertok]

Thank you Paddyd!

 

[BigBlueandGoldie]

YES! Don't ever mess with the primer in a live round.

 

[Travelor]

Definitely not recommended. I must confess that I have done it and still have both eyes, all fingers and toes.

 

[dkhunt14]

If the round goes off it could be a total disaster. Matt

 

[mobertok]

Thanks guys, I wont touch them then. Appreciated!!!!

 

[amlevin]

Also if you scrape the carbon from the seat they will all go in all the way every time.

And if you clean your brass in SS pin media you don't even have to do that. It's all done for you in the process

 

[Webster]

Hi everyone, probably an easy answer for my ? Fairly new to reloading. Would I be stupid to try and seat my primer in a little deeper with a fully loaded round? Thank you.

If the primer is not protruding above the case head I would shoot them and do a better job the next time. They will probably all fire? The primer should be seated by feel so that the anvils touch the bottom of the pocket.

 

[mobertok]

I saw something about seating primers at .004" under case head. When I first started about a year ago, some of my primers backed out a little upon firing. I just noticed that some of my primers are not deep enough, I think that is why my primers backed out in the beginning. Now I am doing a much better job making them right. I guess that .004" measurement is not so critical? Thank you everyone.

 

[TimP]

Primers will back out slightly after firing it is not abnormal.

 

[Dusty Stevens]

I saw something about seating primers at .004" under case head. When I first started about a year ago, some of my primers backed out a little upon firing. I just noticed that some of my primers are not deep enough, I think that is why my primers backed out in the beginning. Now I am doing a much better job making them right. I guess that .004" measurement is not so critical? Thank you everyone.

Dont worry about any measurement. You need to make them touch then crush .001. You cant reliably measure how far below flush that is

 

[mobertok]

Sounds good guys, appreciated. I think I am all good with that issue now. Right on!

 

['Freak]

I use Sinclair’s primer pocket uniformer first to cut all primer pockets to the same SAAMI spec depth and to square the pocket floor relative to the case head, and then the same uniformer tool is used again to clean the primer pocket and to maintain pocket uniformity every time a fired case is going to be loaded again.