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6.03 650mm vs 510mm 6.01

1994 Views 9 Replies 4 Participants Last post by  chachaseeds
Hey guys wanted to get your thoughts on how much a difference I will get in terms of better accuracy at 300ft. The barrels are both from RA tech, I haven't got the 650mm 6.03 barrel yet. I gun im using is my HPA kc02.

here the hpa kc02

and the chrono with madbull .40s

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I have used both, and found that the 6.03mm gave me more consistent groups.
Spacers won't work beyond the outer tip of the main outer barrel because alignment issues.
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