Best neck dia. for Lapua brass in 223Rem? tight neck?

I'd say the man who suggested the "long range" forum missed. You want the F-class forum.

Primarily because the way a long-range benchrest shooter in the States (one who competes in either IBS, NBRSA, or Pennsylvania 600 and 1,000 yard matches) would think about the whole issue wouldn't fit your situation.

Example: My first thought? Get a new barrel. And of course, have your chambering reamer ground to fit the bass you're using. Get dies that fit the chamber (which was cut to fit the brass). Test various bullets to find which one groups best.

Just a few other examples:

Who cares about cartridge OAL? The only thing that matters is how far the bullet moves before engaging the barrel. Just as likely a jamed bullet will work better than one jumped.

* * *

What's wrong with thin necks? Too thick is a problem, too thin, why? Under what conditions? (lets assume wall variation is not an issue with either.)

* * *

If a barrel isn't going to win group matches, shoot for score. In State-side long range benchrest, it pays just as much as group, and the two don't meet except for the "overall" win, which frequently isn't even given on the 1,000 yard format.

Consequence? If I'm going to shoot for score, I'll likely make different bullet choices than if I'm shooting for group.

* * *

Not to say this is the *right* way to think about things, but it is how most benchrest shooters think -- there are a lot of assumptions they take as given. If those aren't addressed, there is a "language" problem.

I'd guess the most appropriate forum would be the F-class forum; answers there would come from directly comparable experiences. On this forum, you'd have to luck into somebody who shot both F-class and benchrest (successfully), or go way back to the basic starting points assumed by most benchrest shooters.
 
ok charles, i'll bite why f class instead of here ?...he is shooting 500 and we have 600 HERE.
there is no NEED for thin necks with most of todays brass, so why go thin ? no one said thick....
what i said was the brass should clean up at .010 or thicker..no need to go to ppc thin.
i dont disagree with a new bbl, BUT THAT WAS NOT HIS QUESTION. you do notice he is also asking about a reamer....so either rechambering or getting a new bbl.

mike in co
 
Why?

There are people in High Power, probably even F-class, who actually shoot a .223.

I'd figure their advice would be far better than the rest of us who shoot 600 and 1K benchrest, but not with a .223

Yes, I know you've mentioned shooting a .223 in point-blank BR. How many people do? So, either he's incredibly lucky to find the one person who uses a .223, or he's incredibly unlucky that the only guy who replied to him bucks current thinking.

Solution: find some other people who also use a .223. See if there is common agreement. I suppose we could check IBS/NBRSA 600-yard match reports looking for .223s, but I'd bet the sample size is very, very small. More apt to find people in a Highpower forum.

Here is a link for IBS 600 yard results. Not all have equipment lists, but it's a start. First 10 matches, from up and down the East coat and Midwest, no .223s. Only one .22 -- a .22BR.

http://internationalbenchrest.com/results/long_range/index.php

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thin necks dont survive well.....
Click to expand...

Sounds like something bad to me. How thick do they have to be to survive well? I shoot necks turned to .0085 in my PPC. If I don't ding them, they hold up quite well. As for dings, dropped wrong, I've dinged necks with .014 walls. What are all of us missing?

* * *

If I wanted to push a bullet about 90 grains for 600 yard benchrest, I think I'd use a small 6mm, like the 6BR. But that's just plain old conventional benchrest thinking.

EDIT:

I just went and looked on the F-class forum. Second post from the top was all about long-range .223s:

http://benchrest.com/showthread.php?72064-223-600-800-1000yds-new-build

I imagine if there are .223 questions, some of these guys have answers.
 
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