87 grain Vmax all day in your gun. I built a 1-8 twist for LR over 500 yards, to shoot where my 62 grain Berger MEF varmint bullets quit expanding in my 6BR at 3500 fps from the muzzle. I chambered the 1-8 in 6mm Rem. AI, and was going to use the 105 Bergers,,,,,, BIG mistake!
The first thing I found was why they don't use anything that shoots faster than 3100 fps for 600 and 1000 yard Bench rest,,, their groups open up beyond that. They won't take the rpm's over 3200 fps, and if you don't use a 1-8, they won't shoot at all because they want stabilize.
Now I had them up to over 3400 fps, but the faster I pushed them beyond 3050 fps, the larger the groups got. Then at 3050 even 3100 they were accurate enough, but now the did the same thing at 500 yards the 62 grainers did in the BR. They turned into drill bits and just poked a .243" hole in and out. So is you don't hit the brain spine or heart, you don't get to kick em!
I went back to a real varmint barrel, a 1-10, and then a 257 for the Ackley Improved Roberts. and running the 88 grain Bibs HPBT @ 3760 fps, and blowing them apart at 600, even big time damage at 800 yards. I also had a 6mm Rem AI with a 1-12 twist that was poison out 600 yards, (as far as I killed anything with it) using 80 grain Ballistic tips@ 3600 fps. But from what I've seen from the 87 grain Vmax, I am sure either bullet is a better Varmint bullet than any 100 to 108 grain target bullet for 6mm users wanting best result at over 500 jobs killing anything! The heavies are best left for killing paper and steel,,, maybe why that was what they were designed for?????
I also will never build another varmint rifle with a twist faster than 1-10, maybe that's why faster barrels were developed for target rifles,,,, big difference between best for targets, and best for hunting!! Trying to make either one the best for both is a compromise,,,, for both, the best for either has nothing to do with the other!