Just developed a load in my .308 @2450fps. with 3 coats of BLL for lube.
Shoots under an inch @105 yds if i weigh bullets, 1.5" or less if i don't, usually much less.
I've used nothing but BLL for over a year now with the same performance i get with Ben's Red.
There's a thread here in the lube section where Ben used Lundmark liquid wax for a substitute for the BLL. I haven't tried it as i have plenty of JLW on hand, but if Ben says it works....it works.
I've run BLL much faster in my rifles as far as speed and have never had a leading problem. It doesn't gum up my dies like straight alox will and is so easy to make and use, and dries so fast, i've gotten addicted to it.
I usually give it 2 hrs. to air dry between coats, but a fan will get it done in 10 to 20 min. between coats.