Originally Posted by kwg020
Originally Posted by mathman
Originally Posted by bsa1917hunter
If bigger flash holes were better, don't you think after all these years, ammo manufacturers would have figured that out? I've never once had to drill out a flash hole. Ran into some rough burred ones and my torch tip cleaner fixes that right up. That's what I use to poke the stuck media out with and while I'm at it, also remove burrs. 2 birds with 1 stone. Nothing too complicated there.


On top of that it appears that the best made brass for cartridges used in the most precise competition disciplines often has deliberately small flash holes.

I'm also sure with the best brass the holes are consistently the same size. That seems to be a key to accuracy.

kwg

Consistency is key. Whether small or large. Keep them all roughly the same size and clean and free from burrs and you'll be just fine. Now, I've seen flash holes off center and that may create an issue. I generally toss those in the scrap bin.
Originally Posted by kwg020
Originally Posted by bsa1917hunter
If bigger flash holes were better, don't you think after all these years, ammo manufacturers would have figured that out? I've never once had to drill out a flash hole. Ran into some rough burred ones and my torch tip cleaner fixes that right up. That's what I use to poke the stuck media out with and while I'm at it, also remove burrs. 2 birds with 1 stone. Nothing too complicated there.


I dug my Lyman's primer hole burr tool out and went through probably 700 cases in the last 2 days. All were 5.56 brass of some kind. Mostly Lake City. I did run my #45 drill bit through the primer hole prior to using the Lyman tool and found that most of the holes were very clean with clean smooth edges after being drilled. I really didn't need to do anything additional but I had the time and wanted to see just how many cases needed to be reamed from the inside.

The few I did find that were not clean with smooth edges were mostly the dated FC (Federal Cartridge) 5.56 brass. They had the roughest internal holes. I looked at them with my bore scope and could see that they were not very smooth even after running the #45 bit through the holes. It would of taken a much larger drill bit to clean them up as nice as the other 5.56 brass I cleaned up with the Lyman tool or by drilling them out.

It appears the options are:
I can make the primer holes uniform and get rid of the rough edges on the drill press or spend the time to clean them up with the Lyman tool by hand. All except for the FC 5.56 brass which seems to be an animal of it's own. The fastest way was to simply lift the primer hole up to the spinning drill bit on the press and run it through. Just that quick and it was done.

kwg

Nothing wrong with that. If it's fast and easy and it gets rid of the burr and keeps them all the same. I use a lot of FC with the scamp marks and they don't seem to be too bad. I picked up 1200 pcs one time at the local range: AKA "range pickup" brass:
[Linked Image from i.imgur.com]

Been using them ever since for plinking ammo in my AR's:
[Linked Image from i.imgur.com]

Brass prep is important. Keep everything consistent and it helps..

Originally Posted by raybass
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style.
Originally Posted by Pharmseller
You want to see an animal drop right now? Shoot him in the ear hole.

BSA MAGA