This chart shows the measured bore sizes of various types of aftermarket barrels that one can purchase for your marker. This information should either be used to buy the right size paint according to the size of your barrel, or decide which barrel to buy depending on which type of paint you prefer to use. A list of the paintball bore sizes can be found here. These measurements may differ from the ones the company advertizes--in which case I suggest that you should disregard the company's measurement. Each barrel was measured at both ends (breech and effective). If these two measurements are different, one should pay attension to the effective bore size and not the breech bore size. Also note that with almost all two-piece barrels, the second stage of the barrel is a larger bore, because the first stage is the only effective section of the barrel. All of the following measurements were done using a mil-spec fuel line bore gauge which is accurate to ±0.0005 caliber.
Single-Bore Barrels:
These barrels have a set bore size and cannot be adjusted in any way to a different bore without switching to a completely different barrel. This includes one-piece and two-piece barrels. in the case of two-piece, the effective bore size is the size of the barrel back.
Multi-Bore Barrels with Inserts:
These barrels use specially-designed inserts that fit within the barrel backs to allow for an adjustable effective bore size, depending on how many inserts you have (the sizes of the inserts available are listed in the next cell).
0.689, 0.691, 0.693, 0.695 |
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Multi-Bore Barrels with Different Backs:
Instead of swapping out inserts, these barrels instead swap out the entire barrel back. Again, depending on how many backs you have, you can use a variety of different bores. Most kits that come with all the necessary backs (and cost considerably more as a result). The sizes of the different backs available are listed in the next cell.
Customizeable Single-Bore Barrels:
These barrels can be purchased in any of the sizes listed in the next cell, however the point isn't to purchase them all; rather to purchase the barrel in the single most useable bore size.
Adjustable Multi-Bore Barrels:
This type of barrel's bore size can be adjusted by simply twisting and locking a section usually toward the back of the barrel (this is allowed through the use of a unique form of internal linear rifling and a system of bearings). The sizes available to adjust to are listed in the next cell.