Originally Posted by canebrake
RTFM, or better yet, call the manufacture. What they tell you will speak volumes about both the company and their products.
IMHO, hot loads are not needed when using the BIG & SLOW 230gr .45 ACP round.
It works just like John Moses Browning designed it over 100 years ago.
Quoted for truth, + 1000
But to address the question, they probably are, but yes, you should read the manual or call them up. They seem to be pretty decent guns, haven't heard any complaints about them myself.