breathing will do it man! especially if your heart is pumping. i can see the scope bounce with my heart pulse when i am breathing hard

when ever i miss whith my shotgun (witch happens ever shot ever time i shoot it) i say it isnt sited in thats makes them laugh, but with my rifle i say that...well iv really never mised with my rifle yet,but with my bow i say the wind blew my arrow or that im shooting a new broad head

I just tell them what really happened. It always works best.

my barrel was bent

I never miss...sometimes the deer just don't bleed and we can't pick up the trail...

the scope was off.

its funny cuz i missed a 8ptr. with a gun that my buddy said was right on then i nailed a doe with a regular
shotgun.......and the bead was off 3inches.[&:]

I SUCK!!!

The only time i miss is and im not bragging is when i see a buck with 10 or more points.Yep you guessed it buck fever.been hunting for about 20 years and them big ole bucks still get me sometimes.

Gravity

Thats what I get for wasting a shot on a living animal.