That's a good barrel, I run one myself
Ok first off with your barrel kit I need to go over paint matching. Three methods here
1) overbore
2) "just right"
3) underbore
1) overbore is when there is still space around the paint, the insert you have chosen still allows for some space, sometimes it's enough to allow roll outs, sometimes a little shaking will get one out.
+Often better consistency
+Allowes for inconsistency in the paint
-not the best efficiency (still typically far better than something like a stock barrel)
2) the just right or "perfect fit". Select an insert where the paintballs will not roll out of but if you put the insert to your mouth and blow the paintball will come out
+Typically better efficiency
+Easy to figure out which insert to use
-inconsistencies in paint can cause problems
-not the best consistency as some paintballs seal better than others
3) underbore, find the insert that is the "just right" size and then go one size down from there.
+Eliminates a lot of inconsistency from the paint as you are squeezing each ball
+Typically best efficiency (very small gains over the other two methods)
-can cause problems if the paint is bad quality, lots of barrel breaks
-a small underbore at the start of the day can become a large underbore as the day goes on and things warm up
Dwell tuning, first, READ YOUR MANUAL. know how to program your board before starting this
Ok, get your chosen insert in your barrel, grab a bunch of paint and head to the Chrono
First set your velocity, I'll just use 285 for a reference point, I'm not sure what your field uses. Likely you'll have to turn it down after switching to that barrel. After this DO NOT ADJUST THE REGULATOR
Velocity set, fire a few shots and find your consistency number. Let's say it goes like this
Shot 1) 283
2)278
3)285
4)281
5)280
So the highest is 285 and the lowest is 278. Difference of 7fps. Just keep that in mind
Next get the board into programming mode and get to dwell. Let's say the factory setting is 40ms. I'd say chop 5ms off just to start, typically they are set pretty conservative from the factory. Fire a few over the Chrono (sometimes you have to exit programming mode, sometimes you don't) chances are your velocity will be the same
What you are looking for is a drop off in velocity. Let's say 30ms works fine but it's shooting at 260 once you go to 25ms. The drop off needs to be larger than your consistency gap. So if 25 is definitely drop off territory I would bump it back to 30 or 33. You want to leave a little wiggle room in there because the next time you go to the field conditions and maybe the paint will be different
That's pretty much it. You will be getting better efficiency. On my vanguard Creed I managed to cut the dwell almost in half from the factory setting. Granted it's a different design than your rize but I can shoot over a case on a full full
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