I always match or slightly underbore on closed bolts to prevent rollouts. Bore size less important on open bolts if detents are up to scratch, but I still only go up a little on size.
Underboring with fragile paint
- Thread starter Orion3
- Start date
For the perceived and actual benefits it's really not worth the risk.
If you underbore and break paint, you've wasted the extra few shots gained from lowering pressures by having to "shoot through" the break and clean your barrel again. Markers are so efficient now it's really academic. I personally try to guarantee the paint actually leaves my barrel by
1 - using good paint in the first place,
2 - slightly overboring
3 - shooting an Angel, which has broken less balls in 2 years than anything I remember.
If you underbore and break paint, you've wasted the extra few shots gained from lowering pressures by having to "shoot through" the break and clean your barrel again. Markers are so efficient now it's really academic. I personally try to guarantee the paint actually leaves my barrel by
1 - using good paint in the first place,
2 - slightly overboring
3 - shooting an Angel, which has broken less balls in 2 years than anything I remember.
From what I've read and from my limited experience (I've had no breaks shooting 3 cases of claymore) underboring shouldn't break anymore paint than overboring.
I've just never done it with tourney grade paint and wondered if anyone had?
When I finally get my hands on a new shaft 4 kit I'll give it a go; and if the lack of breaks continue I shall underbore going forward. Purely from consistency standpoint - not overly fussed about efficiency as I'm currently using an Ego.
So far, what I have found is that when underboring my shot-on-shot consistency is better than when I overbore. My assumption is that underboring seems to reduce the ball to ball variation (all the balls are larger than the barrel) whereas when I overbore some balls fit snugly whilst others have some room to spare as they are shot and some have even more space between the ball and the barrel.
I've just never done it with tourney grade paint and wondered if anyone had?
When I finally get my hands on a new shaft 4 kit I'll give it a go; and if the lack of breaks continue I shall underbore going forward. Purely from consistency standpoint - not overly fussed about efficiency as I'm currently using an Ego.
So far, what I have found is that when underboring my shot-on-shot consistency is better than when I overbore. My assumption is that underboring seems to reduce the ball to ball variation (all the balls are larger than the barrel) whereas when I overbore some balls fit snugly whilst others have some room to spare as they are shot and some have even more space between the ball and the barrel.
Changed barrel from 691 to 687; reduced the operating pressure a little, more fps consistency, slightly quieter, rarely broke a paintball in the barrel. Believe tournament players go for overboring to reduce/avoid wasting time cleaning the barrel during play...
following these discussions the past few days i underbored very slightly with rps premium last night and it was getting pretty nippy, had one barrel break but even at that it cleared pretty quick.
long story short: it works
long story short: it works
recently i was playing super5ives with a .689 bore on tournament grade paint . 1st game, i had over 10 chops , changed it to .693 , = no chops so its what i use now
Chops or barrel breaks?
When you got back off the field and cleaned up properly was there paint inside the gun (before the barrel)?