Recoil Comparison: SCAR 17S, PTR91 and M1A

[Sturmgewehre]

I thought you guys might find this interesting. In this video we shoot the SCAR 17S, PTR 91 and M1A back to back to demonstrate their recoil impulses.

http://www.youtube.com/watch?v=yyW-SAxLLmI

Questions and comments are welcome.