I also have a Rem 700 MR, but restocked into a B&C Ti stock & bedded well; shoots 51gr of RL-15 & 120 TSX into 5/8-3/4".
I seat all Barnes bullets to a very light kiss to .010" off.
But it shoots pretty much everything into 3/4" or better, all loaded to the same throat clearance.
In spite of what some on here claim about the need for seating Barnes bullets with a sizable jump to the lands, in the half dozen or so rifles I developed loads with them for, all have shot just fine kissing to .010" off the lands.
YMMV
MM
I got the range yesterday and using your recommendation of 0.01� off the lands things tightened up considerably. Using the same load of 51.5 grains of RL 15 and the increased COL put 5 shots just within an inch square, which is probably close to the best I can shoot so a better shooter might be able to reduce that. I am more than happy with the results so thanks for the recommendation.
I also loaded 5 rounds out to 0.07� off the lands while 3 out of 5 were very good there were a couple of flyers. There was no discernable velocity variation between the 0.01 and the 0.070 so have to assume no pressure change either. My original plan was to use the RL 17 with the 120 grain TTSX but haven�t been able to obtain any lately and as I had the RL 15 on the shelf it is what I used, also in an older Barnes manual I see the RL 15 was the powder of choice for 120 grain. Currently I am using 140 grain TTSX with RL 19 as my deer hunting round but may change that to the 120 grain given current success.
