I'll throw a wrench into the mix on this old post as I was one of the responders to it in 2015. I tried LT30 and it never worked for me. Just could not get the consistency I get with H4198. I also tried VV n130 same issue but VV n120 seems to work better. Go figure! I've been getting better results with more neck tension. As for those 125 grain Speer TNT working you'll have to do a lot of sorting both by weight and base to ogive measurements. You'll have a lot of culls to get rid of. Save your time and buy a custom bullet.