I had HCR rebarrel a 7mm WSM to .350 Rem Mag, and a .30-06 (IIRC) to .280 Rem.
I was less than impressed, but I used them one last time to do a 7mm Dakota off a stainless Winchester 70 originally in 300 Win Mag.
When I got it back it would not feed. I had to send it out to Penrod to get it straightened out.
I would not recommend them. Call Lex Webernick at Rifles, Inc and be happy.
