When recently looking for some 308 caliber bullets to stock up on reloading supplies I kept running across 110gr RN bullets for about $0.10 per bullet. It got me thinking if i could use them for 300 BLK because that would significantly reduce the cost of ammo for me. After doing some Googling, I found lots of forum posts of guys saying it probably wouldn’t work in an AR type rifle, and some load data from Sierra Bullets using their 30 carbine bullet for 300 BLK. So i decided to give it a try…