Last night, I load up 3 box's of ammo. Did my 7mmSTW first. measured runout, nothing new, 17 out of 20, had .004" or less. Then my 270win. Same deal. Always get 17 out of 20 .004" or less. I load for probably 12 different calibers and haven't seen this before.

But then started loading my 7mm-08. Never had trouble in teh past. but almost all had .007" and some more. I tried a lee shell holder. Setup my seater 3 times. Squared the seater die. Turned 1/3 turn several times before seating. Couldn't figure it out. Only thing I saw I didn't like, was my shell holder in my rockchucker rocked some. And shell wasn't tight. It was a No3 RCBS. I have loaded probably 1000 308's and probalbly 100 7mm-08 in the past without issue. Always get 2 or so with little runout. Any other ideas? I set the seater up just like I always have, touch the shell mouth and back up 1 complete turn.

This is new brass. Later I will check runout of the brass alone without powder or bullet. Maybe when I sized, I didn't lube the necks good and knocked them out. Maybe lube the inside necks

I've had good luck using a rcbs #2 shellholder instead of a #3. (If you have one you could substitute for that one that seems a little troublesome) Later I'd try again with trimmed brass to make sure the mouths are good and square. I've been using a lyman low angle chamferer and it's helped my runnout. I guess I'd check the runnout of the brass before loading and then after to be sure it's the seater. I've noticed over the years that I have some dies that do better with poly tipped bullets than lead and vice versa--could be the cup on the seater. Also necks with alot of tension don't seem to seat as straight as those with only about .003" grip. Just some "rambling" ideas off the top of my head...hope something helps.

No. 2? Well, I will try to get one. I ahve been throwing around the idea of a better deburr tool than the wilson. Thanks,

The only runout problem I have is when I runout of Pepsi and have to drive 40 miles to buy another case.

I guess you could consider that a "case runout problem".

Oh! Reloading runout! Nevermind...(I never check it)

quote:

Originally posted by ricciardelli:
The only runout problem I have is when I runout of Pepsi and have to drive 40 miles to buy another case.

I guess you could consider that a "case runout problem".

Oh! Reloading runout! Nevermind...(I never check it)

yup....my kind of guy!!!!!

quite frankly i'm going through the same thing right now with my 7/08 ONLY my case runout is only .002 max with most being .001 to .0015 but bullet runout is running from .006- .008 not that it's causing a problem but i'm sorta wondering why i can't get it to shoot just a little more consistant.

bounty hunter

Vapo and Steve, obviously it is ya'lls opinoin that runout don't matter! Clue me in, I won't change my setups I have, but it would save me some time in the future. I PFLR, and try for a slight crush fit in all my rigs except a BAR or two--and I don't count them in my nitpicky setup category.

What's the view?

Thanks--Don

You know I got to vent here. Why do some insist on posting when they don't care about it and have no experience with the original problem. I appreciate those who reply and try to give some help. But why post to be posting. Just go to the next post.

But believe me, if you visibly see a bullet wobble by rolling, it does not do you any favors. And while .005" is nothing and won't hurt groups. This is one time where my wobble of .011" can.

thanks Kraky for the ideas.

Bigcountry, forget measuring runout if you are loading new brass. Runout is really interesting under the following circumstances:
1) measured on fired cases to see if your chamber is straight,
2) measured on resized brass - to see if your sizing operation introduces runout over what is present in fired cases, and finally
3) on bullets seated in cases with little or no runout, to check your bullet seating process.

- mike

quote:

Originally posted by bigcountry:
You know I got to vent here. Why do some insist on posting when they don't care about it and have no experience with the original problem. I appreciate those who reply and try to give some help. But why post to be posting. Just go to the next post.

But believe me, if you visibly see a bullet wobble by rolling, it does not do you any favors. And while .005" is nothing and won't hurt groups. This is one time where my wobble of .011" can.

thanks Kraky for the ideas.

I apologize for my post.

I started a discussion a couple days ago about how much is necessary and it fits here. It boils down to whether you are a competitive shooter or a hunter as to how many little steps you want to take in trying to create perfection.
Since I don't shoot competition the run out check is a waste of time for me.

I don't apologize for my post...

I have been reloading since the early 1960's, and have never checked runout. Why? Because my rifles shoot less than 3/4", 5-shot, 200-yard groups without worrying about that.

In addition, I have never had to track any animal I have shot, nor have I had to take a second shot.

So, if my cartridges "wobble" 0.000001110001", or if they wobble 0.05", it has made no practical difference in either accuracy or performance.

Granted, if you are trying to put 10 shots in a bullet diameter hole at 2,000 yards, it might make a difference.


I have to run right now...I gotta check my Pepsi supply....


BTW, there is an interesting word in the English language ... it is "humor"...

Hey Bigcountry, Here is an idea from Reloader that you might want to check out.

Your Run-Out might be corrected by going to a different Lot of Cases. Perhaps the Necks are a bit "thicker than normal" on one side.

It might be that your Necks could use a bit of Annealing.
---

I'm one of the folks that also does not concern myself with Run-Out. I P-FLR my cases and am able to shoot an "average" in the 6s with most all of my rifles.

I have noticed the Neck Sizer folks (with Steve being an exception) tend to worry a whole lot about Run-Out, but if that is what they enjoy doing, then that is what they should do.

And for darn sure " I " appreciate the humor in all the threads.

Once a neck has had an expander ball pulled through on the down stroke from getting sized on the up stroke, the neck may be so crooked, resizing and firing may not fix it. I have had good luck opening up bent necks with a mandrel and then FL sizing.

Just keep experimenting until the run out goes away.

you have a choice,..you can turn necks and that will get it to .001" or less,..but bushing dies are needed and you will have wasted time in a factory chamber. Also,..lapping the seater plug with a bullet coated in lapping compound will more acclimate the plug to the shape of the bullet nose.

other than that,..it really nly shows up at 600+ yds as far as match accuracy is concerned. unless you have a match tube which has been cut in lne with the boltface etc, then case dimension makes more of a difference that runout.

I have shot .3moa at 600yds with rounds up to .003" runout,..so it can't be the biggest problem in the world.

In line dies will help greatly as will dies that have a sliding sleeve to hold the case body and align the bullet (forster BR and redding comp come to mind)

Steve, the only thing you need to apologize for is...

drinking that "bug juice"

Well, if one of you red-necked rebels would send me a batch of your home grown panther piss, maybe I would lay off the "bug juice".

I don't bother measuring runout on loads using new brass at all. I don't mess with measuring runout much on large game hunting rounds, just a random check now and again, and then only on loads using fireformed brass. Varmint hunting loads, however, I'm a bit more anal about and check more often.

I think I will now runout and shovel snow.....

I think I found it. I bought a number2 shell holder on someone elses advise and it doesn't rock at all on the piston. That seemed to fix the issue.

Wow, ricc, you really loaded all those years and have never had the first problem you couldnt' figure out. Something don't sound right. So how do you know if .05" makes no difference if you never measured???? Man, thats silly.

blackhawk and others. I usually don't worry about it either because its usually pretty straight. But this is one time something defineatly seemed wrong when I could see it wasn't staight with the bare eye.

Nothing wrong with learning a thing guys. I thank all for helpful replies.

I don't check runout and have never had a problem but there is a tip on the Barnes Bullet DVD that is to seat the bullet and then rotate it in the shellholder and run it back in the seater again.
Your problem could be that simple.
I still will not waste my time looking for it though. If I were a competitive shooter I may rethink my processes. I can't remember when I shot over an inch group so you can see why I don't check for runout.

Well time to be wrong again. I like crow. Had nothing to do with the shell holder. I took out 50 pieces of this new brass that I previously FL sized, trimmed and deburred. I am fairly sure I didn't lube the necks with my usual imperial wax. I just lubed the necks and case with hornady one shot. I usually never do that. I usually put a brush down with imperial.

But anyway, the 50 pieces of brass I left over, only 21 had neck runout less than .003". The rest were like .004 to .007". So I put my FL sizer back in and took out the expander ball. I pushed them thru and now zero runout so I know my FL sizer is good. so put my expander back in, I was able to correct most of em, but 10-12 of em had neck variances thickness of .012" to .017". Fireforming, nor any sizer can correct that. I would turn the necks, but I have begun to think its cheaper to toss em.

Thanks for everyones posts. good lesson for me to remember, lube the inside of the necks with RCBS lube or imperial. I know the hornady one shot stuff said you don't have too, but I don't think its slick enough to let teh expander ball move nicely. I will always use it for outside case body.