Racing
12-21-2019, 11:36 AM
I´ve recently come to play around with paper patching a bit,and was recommended a given boolit length for a approx 40cal carbine of Wesson style.
That got me thinking a bit though,looking at the actual boolit. As for length vs rifling twist,wouldn´t the operative word here be the actual load/bearing surface of the boolit and not the actual total length?
Ie; a given twist will take a given boolit bearing surface length? When paper patching this of course comes out a tad different vs a grease groove setup seeing that the patch first of all "builds" diameter,and at that the patch often extends into the ogive.
With a GG boolit it´s just plain..what you see is what you get.
Just a thought..but wouldn´t this be a more correct n proper manner in which to advance this?
CG of a boolit of course comes into play,as does BC and what not,but in reality that´s a matter after the slug has left the muzzle. The actual spin we put on it though,just me thinking out loud here,would be imposed due bearing length right? Or more to the point,the limitations thereof.?
Yeees..i´m all familiar with the given formula et al,it´s just that i wonder if what i´m proposing here wouldn´t be a more correct way to regard it all?
That got me thinking a bit though,looking at the actual boolit. As for length vs rifling twist,wouldn´t the operative word here be the actual load/bearing surface of the boolit and not the actual total length?
Ie; a given twist will take a given boolit bearing surface length? When paper patching this of course comes out a tad different vs a grease groove setup seeing that the patch first of all "builds" diameter,and at that the patch often extends into the ogive.
With a GG boolit it´s just plain..what you see is what you get.
Just a thought..but wouldn´t this be a more correct n proper manner in which to advance this?
CG of a boolit of course comes into play,as does BC and what not,but in reality that´s a matter after the slug has left the muzzle. The actual spin we put on it though,just me thinking out loud here,would be imposed due bearing length right? Or more to the point,the limitations thereof.?
Yeees..i´m all familiar with the given formula et al,it´s just that i wonder if what i´m proposing here wouldn´t be a more correct way to regard it all?