bore consistency: uberti vs. chaparral

[leadhead]

I've read on another sight that someone has had a problem with bore being inconsistance in chaparral 76 rifles to the amount of 1.5-2 thousands.   Has anyone else heard this or seen it.

[Doc Sorebones]

My Chapparal 45/60 slugs at a very consistent .458"
.I mold a 350 grain,gas-checked R.C.B.S. projectile and size at .459". Over xmp4755 powder this produces very tight groups.Doc.