Muzzle Flip of 75gr 5.56 vs 130gr 6.5G?

[LRRPF52]

There's a noticeable difference to me between the two, especially when standing. Here are some videos I did, but the 5.56 is with 55gr, and the Grendel is with 100gr NBT's. Using a modern aggressive gunhandling technique, you'll be able to control muzzle climb well, but there's definitely an increased perception of recoil. A stout 130gr load in the Grendel will feel a lot more punchy than a 75gr 5.56.

[video=youtube;vK2Y1hiUAPQ]http://www.youtube.com/watch?v=vK2Y1hiUAPQ[/video]

[video=youtube;qApXp7sH9QQ]http://www.youtube.com/watch?v=qApXp7sH9QQ&feature=BFa&list=ULTS_pwM3IPAs[/video]