I picked up a few boxes of the CCI Christmas polymer-coated ammo from MidwayUSA and am thinking about trying them out for smallbore cowboy rifle matches. When I bought them, the listing on MidwayUSA said they were standard velocity, but I could see on the side of the box that it said 1235fps like Mini-mag solids. Midway corrected their listing after I reported incorrect product information for it, but after they had sold out of them.

https://www.midwayusa.com/product/372102



I'm wondering if these would be as clean shooting through a Marlin 39a as the polymer-coated pistol rounds are through typical pistols. I have a buddy who loads polymer-coated lead bullets in his action pistols and never cleans the bores, even after thousands of rounds. I know a lot of people use Mini-mag solids for smallbore cowboy rifle matches. These things might be as good, or even better.

I think that irrespective of how cleanly the projectile travels down the barrel with its polymer coating, the residue of powder/priming compound will still be there as with all other 22RF ammo. And the next projectile glides over that dross. Yes, some of it is a little cleaner than others but never as clean as a good center-fire load.
No matter what ammo I use, the barrel still gets a good cleaning regime.

My .02

49er

The Christmas ammo shot well through my Marlin 39a yesterday. I shot a 37/40 in the match and the three misses were due to the shooter, not the ammo.

sounds like a winner!

It seems to be cci mini mags with a polymer coating on the bullet.