Lapco bigshot 12"

I have had really good success with that barrel.

So check to make sure there is no scratches or junk on the inside of the barrel.

Also make sure that the paint isnt old and doesnt have dimples or soft spots.

i put a ball in and it went like an inch, then i tyed to blow, but the air just went around the sides of ball, and i couldnt get it out,  so i had to puch it back out from other end.

but i thought PMI was the right size paintballs for lapco bigshot

the paint isnt old, the barrel is complety smooth,  

well i wasnt shooting fast,  i think the ball broke in barrel

D-ballz wrote: i put a ball in and it went like an inch, then i tyed to blow, but the air just went around the sides of ball, and i couldnt get it out,  so i had to puch it back out from other end. but i thought PMI was the right size paintballs for lapco bigshot...

The paint is a bit small for the bigshot if that's the case. Since it's small and air can get around it easily, it's not unlikely that accuracy is lost. If the air can get around the ball it can mess with the trajectory and throw it way off target. You also won't get consistent velocities or range between shots because of the poor seal the ball makes with the barrel. If you can find some bigger paint you'll probably see better results. My bigshot works extremely well with most paint but there are some brands that even the bigshot doesn't really work well with. RPS paint is generally good but the different types vary in size so some are better than others. I like RPS paint for the strong shells and consistently sized paint but it is kind of small, I'd rather use them on my flatline where small paint is desired. I used to use proball until the stores around here stopped selling it and then I started using draxxus midnight and blaze a lot. I also use PMI premium sometimes. When I use the flatline though I almost always go for marbs.