I have both and I have yet to see the difference in accuracy. They do say that the chrome lined barrels require less cleaning. If the extra cost for the chrome lining isn't going to be a problem, I say go for it. But that's just my opinion.
not necessary to have a chrome lined barrel and bore but it doesn't hurt to have it either. accuracy will only be effected when shooting over 600 yards where you want to squeeze every ounce of accuracy you can out of your rifle for anything at our around the 100-300 yard range you will not notice the difference
as mentioned it makes cleaning up a lot less time consuming as well.
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