Reaming Lapua flash holes bigger?

[in2deep]

Anybody have any negatives to reaming 6 BR lapua flash holes out to .062?
The new lot of brass I just got had mostly crappy looking holes with burrs etc. so I started reaming them with a K&M reamer and noticed the hole was now noticably larger and the K&M website says about .062 vs. the factory lapua .059.

The K&M makes perfectly round and deburred holes with a nice chamfer inside but before I do all 200 pieces just want to be sure it's worth doing and not detrimental to long-range accuracy.

 

[rocketron]

seems to me the 6br info page says not to do it......the info is on the home page on the left

 

[wapiti25]

Why don't you do a study and shoot both? Shoot enough groups to find out somethimg. Most of the time we don't shoot enough, I'm guilty of not wanting to shoot the number of rounds to get a stastical answer. Even a small study of the question would show you what your gun likes as it sounds as if you have some of both cases out of the same lot.

 

[1972]

Does anybody offer a smaller reamer so you can clean up the Lapua brass, get the holes the same and round, and chamfer them without getting the hole too much larger. Say a .060?

 

[expiper]

just clean em up

you will have no problem using a flash hole drill or "tool" that only relmoves a few thou. of metal....you are not makin em .080 or there about...the purpose of such a task is to remove any burrs or outaround that may exist during manufacture.....so just clean em up and hav fun...Roger

 

[wapiti25]

You can buy reamers in non-std dia's from Rutland tool & supply. They have reamers in most sizes changing by .0005 incements. They will ship about two day's to your door, the shipping does get expensive. I have bought a lot of tools from them and you can select overseas or USA in some cutting tools. I use a pin vise or drill chuck in my hand to hold machine reamers for jobs as you describe. They cost about $19.59 plus shipping in my cataloge. rutlandtool.com