Restart the rebuild

Thanks RB, I dont have dychem, so I tried using a sharpie. No luck with easily seeing the seating area. Anyway in 1st pic is the orange area the throat? Or in 2nd pic is that orange area the throat?
I do have snap bore gauges.
Thanks.

View attachment 1716038242

View attachment 1716038243

Both. I measure the throat right under the bottom cut. So both of those is where I’d measure.