since you seem to like buying your paint @ walmart
Visible impact there (2000 $37.47)
Walmart.com : Visible Impact Paintballs, 2000-count : Outdoor Play
RPS Marballizer (yeah there $69.95 for 2000)
Walmart.com : RPS Marballizer Paintballs, 2000ct. Black/Gator Green : Outdoor Play
If you were shooting monster balls (or any be) paintballs @ me the last thing you would feel is me knocking you out. (dont take this personaly monster balls are just crap)
decent paint when shot @ a tree should break not bounce off our local field has banned the use of monster balls because they break face masks because the balls dont break.
as far as barrels go a barrel kit would be your best bet simply put it will be the cheapest route and most effective route to get a barrel to paint match.
here is an empire kit for ($109.95)
Military Paintball: Empire Revolver 7 Piece Barrel Kit - Autococker, Barrels
sp freak ($150 shipped)
Smart Parts Full Freak Barrel Kit 16"
wgp kaner ($199.99)
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Update 5-12
I bought some visible impact from walmart today 2000 rounds for $37 (my wife works @ wal mart so i get a 10% discount) and after 2 hours of play I like to say be should just stop making paintballs all together.
For about $10 more you can get better paint that actually breaks on contact.
I was shooting my vl maxis my bro was shooting his 98.
The guys we were playing against were using be t-storm with monster balls needless to say me and my bro didn't lose a single match plus were were making shots in up wards of 100 feet with ball breaks on charlie.
I barrowed a whole hopper of monster balls and i have to say they go every where.
Consistancy is the key to winning a paint ball game PERIOD.