I have shot barnes mono's in my Merkel .375 H&H DR exclusively. I have over 500 shots without any of the aforementioned issues and I will continue using them - they work. From what I've heard, Barnes bullets are slightly under sized and should present no problems in a rifle wiht a perfect bore.

Will I shot them in my 1906 Jeffery 450No.2 - Hell no!

Horses for course of course.