Agreed. Shaving the fsb is the best option as it's already match drilled to the barrel. I've seen a few drilled like yours, OP. It should perform just fine.
Agreed. Shaving the fsb is the best option as it's already match drilled to the barrel. I've seen a few drilled like yours, OP. It should perform just fine.
Those are deep. Driving in a pin might cause a bulge in the bore. Contact the maker and see if they can help you out.
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Old Bushmaster barrels were known for having taper pins drilled to deep just like on the OPs barrel.
This can't be a Bushmaster barrel though because it's finished under the FSB.
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