PTR44 locking shoulder damage

Pete, a friend of gun lab, Sent me some pictures of a rifle that has come into his shop for repair. When he tool it apart and check out all the components he notice the condition of the locking shoulder. In the following pictures you can see the damage that has occurred to the PTR-44 […]



During our recent trip through the mid-west I had an opportunity to stop in and chat with John D.,a metallurgist, and Joe P.,a heat treating professional. I ended up taking a number of pictures and John was nice enough to do a write up for me concerning what we looked at, what it does […]


I am not going to do a library post today. Instead I am going to post about my day yesterday.

I had the opportunity to chat with a great design team that has been working on some new magazine and weapon designs that unfortunately at this point I can not go into. However, what I […]

Library Thursday

First off you can see that we changed the title for the Thursday post from book review to library. This was done because I wanted to add more then just book reviews. I wanted to add information to the Gun Lab library that I thought would be useful to you.

So this first post is […]