I have seen a number of the .32 Miller shooters push their wad down onto the powder which according to C. Dell is a sure way to ring your chamber.  I wonder how many if any of those rifles have a ring just in front of the chamber at the base of the bullet? 
     Perhaps the small volumn of the .32 Miller case has a bearing on this problem.

Like the Charles Askins book, Hell, I was there. Many on this board would trust that if I say I participated in some of Charlie and Helbert's testing then there's a good chance I was. I'm tempted to make the offer.....loan me one of your rifles and I'll ring the fool out of it for you per the Dell prescription and pay postage both ways. Charlie and Helbert taught me how and yes it can be duplicated with alarming regularity. But then Dad would chastize me for making the offer and of course be adamant that I wasn't going to do that. Why don't you call him and ask him to explain the tests to you or better yet go visit. I'm sure he'd relish the discussion. And yes, he'd be ok with me making the offer. If you'll PM me I'll give you his telephone number and call ahead for you to prearrange the discussion. You might learn something from this old man.

Martin,  You are of course correct. I can only offer the hour of my post as an explanation. I was still at work, obviously a little  . Thanks for the refresher.

[quote author=JDSteele "BTW, ARE you a gunsmith? "
No

"You've asked for our real names, what's yours?"
Joseph F. Brennan Jr.

"I'd be curious to know just how much expertise & experience you have in this field, how about giving us a rundown?"

Here's what I wrote here in the past:
I don't claim to be a great or even good Schuetzen shooter. I'm certainly not a good offhand shooter. 
In 1983 I was only 17th at the Coors match. 
I've won many bench matches at Old Colony, shooting at least 2 250's at 100 yards, and many groups under .5", some few in the .2XX's. Once I can recall a group under 1" at 200 yards for 5 shots. 
At Western New York I don't recall ever leaving without winning a match, with some pretty fair 100 and 200 yard bench group and score results. 
We shot once in CT., won some sort of big bowl for group shooting. 
Went to Long Island a couple of times, won there too. 
At the Palmisano range in PA I remember talking to Dr. P at great length, and winning a bench ?RF? match. That's where we met Dick Norton. 
In April I drove 350 miles to Palm Bay, had trouble with my rifles (Kroil), left just after lunch on the first day, and at 200 yards shot a 1.7XX" 5-shot group. They allow 2 targets for each match, that's the extent of re-entry. 
Palm Bay is the closest range where anybody does Schuetzen shooting. 
I've been to E.G. twice, don't recall winning any match but I think I remember being in the money.   
Wednesday, at the Trail Glades Range in Miami, with an M54 Winchester in 30WCF, at 100 yards, I shot groups of .9", 1.3" 
.8", .975" and .9"-all measured to the closest .025". This rifle has a 24" light barrel, 10# trigger pull and was made in 1928. 
1-2 sighters and two 5-shot groups were shot during each 15 minute relay. 
My interests are in experimenting and collecting data on shooting, every trip to the range is to perform a set of experiments. I also like to write about shooting. 
I have little interest in the ASSRA bench competition with unlimited re-entry and 2 days to shoot. This proves nothing except that anybody can get lucky now and then. It is more a test of stamina and resistance to boredom. I wonder what scores and groups would look like if an ASSRA match was held under the "Original PA 1000 Yard BR Club" routine, or like the old time bench match at VT. 
I am greatly interested in the SS guys that compete in CBA matches and group and score better than many shooting all classes of bolt guns.   
That's it, Pete-I never set the world on fire, and never will. But I can tell the difference between BS and the real world, and enjoy pointing the difference out. 
joe b.   

We've been married 43 years, have 5 kids and 7 grandkids.
I've written articles for the ASSRA Journal and The Fouling Shot, and wrote "Cast Bullets For Beginner And Expert", published by the CBA.I'm now working on the second edition of the(damn) book.
I have a B.S. in Industrial Management, an M.A. in Economics, and one year postgrad study in Urban Transportation. I graduated college at 33 with 5 kids.
My trades are carpenter/builder, my son has the business now, and Industrial Engineer.
My scholarly interest is in Economics, and particularly the application of statistical tools to real-life questions. See my fairly recent article in the Journal on Statistics and Shooting.
I worked for several private companies and my last 16 years at work were with DoD in procurement-buying those $300 hammers.
We've been retired and living in Marathon, on the Keys, since Sept. 2000.   

"I suspect you already know about Charlie Dell's expertise (so why do you doubt his work?)."

I doubt almost everything, it's paid off big time for the last 45 years. I approach each topic for the book with doubt. The relationship between BHN and chamber pressure has been established and written about by several well-respected members of the shooting community. There are maybe a dozen references. After working on the subject for months, we found the whole notion to be false. All BS. Doesn't mean that the writers were lying, just that they were wrong. We can all be wrong. Even, sob, me.
Came time to approach the chamber ringing topic for the book. Looked up and at all the references I could find. Couldn't get copmfortable, wasn't convinced. Went to the forums for data, stories that substantiated the theory. Here we are.


I started shooting and reloading in 1960, when I got out of the Air Force.

"So it's impossible for me to credit the chip-in-the-reamer theory as being the cause of so many instances of chamber ringing after shooting. I hope that you aren't seriously going to suggest that all those barrels had chip-caused rings, and that this occurred only with the folks who used Dacron wads?"


"so many instances of chamber ringing after shooting."
Where are they? They are what I'm looking for.

Are you sure that the Winchester, Savage, Remington and other commercial makers don't turn out guns with reamer-chip chamber rings?   


Is this enough, or do you need more detail?
joe b.

I registered just so I could put my two cents in.

Do you fellows have a different Chapter 17 in your Charlie Dell book than I do?

My book says Mr. Dell got chamber ringing with no wads. He surmised air compression at the base of the bullet caused ringing. His additional test showed that Dacron was the least effective in reducing ringing. My copy of Mr. Dells book doesn't say any wads caused ringing.  Am I reading that wrong?


DD

As per Charlie Dell;
When the wad is seated .100"-.200' off the powder, it reduceds the ringing force to the point that it is no longer a danger to the barrel. Powder, when slumped, does not cause the perpendicular pressure wave that causes ringing.

Charlie made up a wad seater that accomplished what he had found was necessary  (seated the wad .100"-.200" off the powder) and used it religiously. It is easy to do and eliminates the potential problem. Seems like a plan to me...

Dale53

Cat_Whisperer;
There is no picture of a wad seater in the book. I don't have a picture to show you. However, you can make a very serviceable wad seater from a brass bolt of an appropriate size with two nuts on it (making a jam nut). Seat a wad down on the powder (I use floral foam 1/4" thick), measure, then make your tool .100"-.200" shorter. This will seat your wad the requisite distance away from the powder. I also use a .060" wad at the mouth of the case to protect the bullet base from the powder kernels (the floral foam vaporizes at ignition). I prefer either LDPE or vegetable fiber.

Dale53