RE: "Klein nut driver"

Actually looking at a picture of the "Klein nut driver"
I see 5/16 or .3215 is one of the extension options.
Clever, so what is the OD of the 5/16th extension and do you believe it enters the chamber concentrically ..?

TIA

rj


gunlaker wrote on Dec 24^th, 2022 at 9:50am:

Chris,

Thanks for the explanation...
Good idea I'm sure.
In your experience have you ever breech seated a bullet out further than the top of the case?

TIA
RJ

Also do not hesitate to also try engraving the bullet just beyond its base. 
It also does matter just how far it sticks out beyond the mouth of the case.
Myself personally I have found increased accuracy by doing just this and even if takes seating the bullet 3/8 of an inch beyond the mouth of the case. 
Every chamber can be very different and for me personally and all though it has always been highly recommended.
Engraving the bullet half way through the baseband has never worked all that well for myself. 
This also holds true for another popular rule and that being 1/16 of an inch beyond the mouth of the case. 
Bullet design , shape, chamber dimensions and etc. can also leave a bullet just barely being engraved. 
One also needs to think about is when a bullet is seated is it actually providing a 100% positive gas seal. 
And just importantly is it also being seated directly in line with the bore. 
These are just things to also think about to achieve the very best of accuracy that your rifle can actually provide for yourself.

In the targets I posted the base of my bullet was .151" past my .32 RKS case mouth and my bullet base had more than half of it engraved by the rifling.

In other words the bullet base is fully inserted past the leade in front of the case mouth.

It was fully inserted with a Weber adjustable seater so the entire bullet was completely inserted into the rifle's bore.

Most importantly the base was inserted far enough for a complete gas seal preventing any gas starting to cut around the side of the bullet before it starts moving down the bore.

A fully inserted bullet ensures the bullet is better aligned concentrically (which results in much better accuracy).

This is the minimum depth you need to seat your bullet.

You can increase your case volume more by slowly moving the bullet further outwards - this allows you to fine tune your powder load as indicated in the four targets where I resulted in different group sizes by adjusting my Weber seater.

Smaller volume cases (.32 Miller short) benefit more from fine tuning your load than do larger volume cases (.32 RKS).

Smaller volume cases are more sensitive to powder volume changes and require more fine tuning whereas the larger volume cases are not as sensitive to minor powder volume changes.

JLouis, am I correct thinking that, sometime ago, you wrote of a range session during which you gradually seated a bullet more deeply into the rifling until optimum results were obtained? If so, a reprint of that experiment would be timely.
Thanks, and Happy 2023!
Regarding use of a floral foam wad - I shoot a .32-20CPA (much shorter case than .32-40) and find a wad helpful in holding powder in place. Wet floral foam works for me.

I have also shared my own and very successful CBA experiences along with the ASSRA and ISSA's in the past with folks here and they never appreciated it. 
So now I will only share it in an email with only those who might also want to accomplish / achieve the same themselves.

Hey guys, the OP hasn't been back in over 3 months. Did we scare him off?