Originally Posted by Mikecr
I'll declare for you that ammo benders do not work to provide better shooting performance. They also do not work to reduce, or even affect -runout.
Take any loaded cartridge which has been taken to concentric on an ammo bender, and spin it on a Sinclair runout gauge. You will then see that the catridge is not straight, and still has plenty of runout to chamber.
Take any loaded cartridge that measures zero on a Sinclair runout gauge, and spin it on an ammo bender. You will then see that the cartridge is truly concentric as well.
The object of measurement is not to seek a lowest reading. It is to validate what you have.
nheninge is right
It's all declarations, theory & conjecture until the ruler is on the target paper measuring the groups.
I'm going to let the target paper be the presiding judge in this trial.
If, all other things being equal, I see improvement then I've bought a worthwhile product.
If I've been sold a gimmick it won't be the first or likely the last time.
Opinions are a dime a dozen..........let's hear some field reports
by shooters who have actually tried the tool & have or haven't noticed improvements in the performance of their hand loaded &/or factory ammo.