A 585 HE ...shot with moderate heavy load......

https://scontent.cdninstagram.com/t50.2886-16/20404363_470558053312276_3772630570509533184_n.mp4

Here is a 375 HE target gun set up, by Asteroid Precision...

Here is video of it being tested... And with a 350gr bullet about 3450-3475,

bolt opened easily with one finger...And he's just getting started

and is checking on better powder, Ed...........

https://www.facebook.com/AsteroidPrecisi..._location=group