I've gone 20" and it was a brand new Tikka 7-08 barrel that Jaco reamed.
First two groups once I got it hitting paper.
2800fps from factory 175 ELDX after 10 rounds.https://uploads.tapatalk-cdn.com/202...acde300f89.jpghttps://uploads.tapatalk-cdn.com/202...82985866c5.jpg
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