As Stonecreek kindly informed me, the first L46 rifles made for the .222 Remington cartridge were made with barrel blanks that were originally made for the .22 Hornet. Twist rate was one turn in 16" rather than the 12" that became the standard for .222. I checked my wing-safety .222 and sure enough, it had the slower twist. Accordingly, I figured that my rifle would probably shoot well with 40-grain bullets rather than the usual 50-55 grain. So, I picked up some 40-grain Winchester Ballistic Silvertips at a show. Unfortunately, the plastic nose cone of the Silvertip makes it much too long for the magazine of an L46, so I had to single load. The good news is, accuracy was excellent. Next step is to find some 40-grain factory ammo that will fit in the magazine, or find the time to load some myself.