Slugged the 45-70 now for the questions
So i slugged the barrel on the Henry 45-70 (octagon) I'm gettin .457.5 groove dia.
i will cross check this with another measuring tool
Does this sound normal for a Henry?
If this measurement holds true then for lead i should use a projectile sized to .458 right?
If i use a gas checked projectile do i stay the same, size up, or size down?
I am planning on a 405gr at hopefully moderate speeds depending on what the riffle likes
i only load straight wall revolver rounds so this is a new area for me but i assume will be similar
thanks for any info or advice i will check back tomorrow later to see what i can learn