Well I never used a lead sled.

I have some problems with Burris products. I do not mean to anger anyone, and my experience with Burris is limited, butyears ago, my friends on their centerfires went with Burris scopes. I went with a Tasco World Class. We all shot 7mm mags and both their scopes went bad after a year or two. Now granted we shot a lot back in those days, and some were hot loads. My friends both went to Leupold after that. My 7mm mag STILL has that same Tasco on it, and it still shoots great.

Lets hope that Burris has a great customer service...