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Underboring

underbore marb marballizer

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#1 TeAreOhWhy

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Posted 30 October 2013 - 08:09 PM

If my field supplies marballizer, would it be safe to underbore with a .679? Assuming it is around 80 degrees and 80% humidity



#2 LUXOR54

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Posted 30 October 2013 - 08:35 PM

can't know for sure, paint is different everywhere. if you can push it through without a ton of resistance then it should be fine. i had marbs that would break being pushed into a .685 last week. 


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#3 Sydarm

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Posted 30 October 2013 - 09:15 PM

Get your hands on the paint before you make the barrel decision.

#4 get.lit.up!

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Posted 30 October 2013 - 11:17 PM

can't know for sure, paint is different everywhere. if you can push it through without a ton of resistance then it should be fine. i had marbs that would break being pushed into a .685 last week.


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#5 TacticlTwinkie

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Posted 31 October 2013 - 12:33 AM

You ideally want to be .003-.005 under the average size of your paint when underboring. A .679 may not work, or it may be ideal. It depends on the paint. I've seen paints that are the same brand that will underbore with a .682 beautifully, and the next batch rolls out of a .679. Thats the beauty of barrel kits. They give you the versatilty to be in the .003-.005 sweet spot all the time.






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