Re: 225g RBBT ULD?
The numbers he shared with me, which are estimations provided by the manufactures of his dies, would rival the 240SMK by just a smigion. I was planning to have some tested, but that didn't work out.
There are some who have offered to test them properly by shooting them over a chrony, and calculating a corrected BC, but untill somebody does it, there is no way to know.
Richard isn't sharing his die makers estimations anymore because of a thread I started, but ill email the estimated BC if you really want it.