Bore bar vs reamer in 22lr

Ive never done it, but ive heard of people messing with it.

Resizing dies (some) are done this way, and are excellent.

Personally, theres too many options for me to concider. Theres a load of 22lr reamer specs.. find one you like, roll with it.
22-LR-Chart-PTG-768x1029.jpg
 
I have 2 barrels chambered with a boring bar that are lights out! No tooling marks at all. The ones with reamers from top smiths have tooing marks.

Most of the time the tooling marks don't matter.

They can do some trick stuff to minimize the tooling marks in CNC, but they're not gone. A lot of the scratches you see from a reamer are because of chips. You can make a chamber look very pretty with a reamer doing more flutes and full coolant flush.


At the end of the day the attention to detail and getting things centered up and the right size matters most.
 
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