zrexpilot

when testing loads do I need to load in 5 shot groups or 3 would be ok.
My reason asking is, you will never get a tighter pattern than your first 2 shots.

Is there a guage to check run out, and do you have a link

bigcountry

Yep, sinclair makes one, and RCBS makes one. Concentricity guage. http://www.sinclairintl.com/product/...tricity-Gauges

Once you go down this road, ain't no going back.

Thats what I love about metal work and reloading, your limit for precision is endless.

Here is how I load. I load 6 of each load. I shoot a group of three at 100 and another group after it cools down at 200.

Doe Dumper

Big isnt the runout issue where you usually recommend collet dies?

bigcountry

You know my MO. I went from not knowing what runout was and enjoying shooting, to hearing someone tell me I need to check for wobble, and I seen it, tried squaring my dies (waste of time IMO but I still do it), then changing shell holders, to buying a concentricity gauge, to the dreaded neck turning, then buying competition redding seating dies, to fireforming with cream of wheat, (this point I started making reloading no fun) then finally after all that for years and years, I started using the collet die along with floating my shellholder.

I should have skipped all the rest and just got a collet die and learned how to float my shell holder. It would have saved 1000's of rounds and a lot of head shaking.

Doe Dumper

LOL I listened to your advice and bought them right off the bat.

Pawildman

Just gonna butt in here and add my $.02 worth....STILL haven't heard from Hornady or Midway about the runout correcter I've ordered. Does anyone have any news on them?
I'm also a firm believer that runout is a group blower and am ANXIOUSLY awaiting the new piece of equipment.......

bigcountry

I still haven't seen any. I have been keeping my eyes peeled on them for ya. When I saw the first one, it didn't look that complicated, surpised they haven't hit the scene yet.

zrexpilot

Thanks for the tip bigcuntry Loaded some up today spinning the case and seating a little at a time, worked much better. I cant tell you they have any runout at all, but they dont have any to see with the naked eye and I seated much closer to the lands with out anything touching.

bigcountry

Rolling them on a mirror, one should be able to spot any runout over .005"-.007". Most guns shoot fine with .005" or less.

Overbore calibers with long throats like weatherby's and RUM's don't like any runout over .003" I find. The closer you are able to load to teh lands the less runout is an issue. I don't know this for fact, just what I see from my experiements.