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Jerby wrote:
It can due to the ball bouncing around in the barrel. I would not be a big problem, but you will notice a slight inconsistency in your shot placement.
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Not necessarily, the smaller the bore size on a barrel will but more pressure on the ball allowing it to exit the barrel with more force, hence, slightly farther range and somewhat tighter shot placement.
With a larger bore size, you are allowing for more space for the ball to travel in, there will be less force behind the paintball but this doesnt make a significant differece.
There are pros and cons for each:
If paintballs are larger than the bore size you are using, it may put too much pressure on the ball, leading to a barrel break.
Overboring, or choosing a larger bore size (0.691 for example) allows for larger paint sizes or paint that has expanded while laying in the heat. But also means your not getting the most out of your shots. This is why there are Bore Sizing Kits that come with multiple bore sizes for the perfect match for the paint your using.
I may have missed a couple of points, but this is the basic info behind bore sizes.
Hope this helps
