Howdy folks. I’m new here and still feeling my way around. My first ‘search’ has left me a bit puzzled but the 'why' part is none of my business. I recently asked ‘the censored one’ the same .22LR conversion question and he replied with:
“George, over the years I have reworked a lot of .22 LR barrels to either .22 Mag. or one of the Hornets. My favorite of all for prairie dogs especially is a 20" K-Hornet I made with a .223" groove, 1-16" twist .22 LR barrel, and the bullet it shoot best is the .224" Sierra 40 gr. HP, not a "Hornet" bullet. So long as the barrel is throated large enough, you can shoot the .224's just fine.... by large enough, I mean my .22 throater is just barely over .224", cuts about .2241". It is close enough to bullet size that once and only once we ran into some .22 Mags with .2245" bullets that would not chamber of course. Accuracy from the LR barrels is superb. I've run about 3500 rounds through that K-Hornet, close to 1000 were .223's but it still shoots the .224's best.”
$oon as I recover from my latest projects I will be sending out my poorly performing 21” .22LR tapered carbine barrel for either a WMR or K-Hornet conversion and 11 degree crown and see if it works out for me. Just can’t help loving on my Contenders.