I just picked one up, only have had a chance to fire 1/2 of ammo through it.  I love it so far.  Anyone have any thoughts or opinions on this gun?  Any problems?  Any helpful mods?

I had one of these with a boss system that did not have the ports ( due to being able to hear again after you shot it ).  Thats the only mod i had and it held a sub 1/2" group at 100 yards.  You will really enjoy being able to reach out and touch them with a lot of knock down.

What ammo where you using?  The I've only had a chance to shoot off 1/2 box of Remington 180gr Core Lox.  My primary use for this gun will be elk / moose / bear.