Originally Posted By: Walkingthemup
Both .30 carbine and 30-06 are the same bore size. .22 LR and .22 centerfires are different bore sizes.

Will it work - Yes. Is it the best - No. Apart from accuracy issues, you'll also have a leaded barrel to ultra clean before putting .223 through it again.

Why not do the job properly and simply buy a .22 LR, or .22 Mag, barrel for it?


Economics. A pair of adapters to accommodate both cartridges in my current barrel is about $40, compared to two new barrels each at $250-$350.

Formerly TN Lone Wolf

"We are only as strong as we are united, as weak as we are divided." - J.K. Rowling