Two diameter GG bullets

[Kurt]

Richard.

It's best if you want to shoot a GG bullet to have what ever design you feel you want to shoot that you go with a reduced driving bands then go with a bore rider like say a Government .457-125. The 125 is a good bullet but it has a lot of dry lead ahead of the front driving band that might leave a lead smear in the bore. A postell type of bullet with some front bands reduced so the bullet that is riding tight in the bore is lubed to minimize the chance leading the bore. It would take a mould from Brooks or another custom mould maker.
Or use a PP bullet.

Kurt