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· Premium Member
3,367 Posts
Lapping the Micro-Groove barrels is the same as with any other rifling configuration. It's tedious and time consuming, but very rewarding, and not difficult in the least.

Brake cleaner is excellent for your cleanup between volleys of lap bullets. However, be VERY careful around your wood stocks! That brake cleaner will flat-out EAT stock finish! Take proper precautions, or you might have to refinish your new Marlin stock sooner than might be anticipated :D

You'll be amazed at the before and after group shooting ability of your Micro-Groove barrel once fire-lapped. The results are worth every minute of the work invested!

Let us know how things progress!

God Bless
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