Breech Seating

[JKR]

For a bore diameter PP bullet seated shallow in a case I personally see very little advantage breach seating the bullet with a breach seater below in the photo.
It is a different story if you breach seat a groove diameter PP or GG bullet or a jacketed bullet like some Schuetzen shooters use with their .32-40 rifles or what ever centerfire rifle.
Using a breach seater with the groove diameter PP bullet the bullet is seated without runout using a proper fitting tool. Also that bullet does not get kneaded like dough expanding in the chamber and swaged back down as it enters the bore.
Using a breach seater with say a .32-40 or .38-55 and smokeless powder. The shooter will have a shell charged with smokeless powder and the shell will have a cork of some sort in the case mouth so the powder won't spill when transporting them or they will charge the shell at the range. Some will use the same case for the whole match if time allows.

You don't need to use a tool like mine for breach seating. You can use a Pope type of seater that is a palm pusher with a case filled with lead and push a bullet into the bore.

I just made a simple breach seater for my long freebore chamber so I could use a DD PP bullet that did not fit against the throat and I didn't want the patch to unravel while just using my finger to load it in the chamber and push a loaded case with a wad flush with the case mouth, it's not the best thing to do with a dry wrap PP bullet.
But you need a stop bushing on the shank so you don't push a straight shanked PP bullet in too far ahead of the case when the case has a wad over the powder. Some of the smokeless powder breach seater shooters will tune the load adjusting the seated bullet ahead of the chambered case.

Kurt

Thanks for that good explanation,Kurt. The picture of the one you’ve made up for your 38-50 gives me a good picture of what to do if I want to play with this in my 38-55.
Jim