I have been buying and making parts here and there for my 1st real long range rifle, and I finally got everything and am getting ready to have it put together! It's going to be a .300 RUM. I ordered the barrel from Hart in a 1-11 twist, thinking I wanted to shoot 210 vld's, but now finding out here about the 215 hybrids I'm kinda kicking myself. Berger recommends a 1-10 to stabilize them, I have used their twist calculator and its close to being stable. Does anyone shoot these out of a 1-11? This is my 1st post, but I have been lurkin around for some time and I love this site. Thanks.