If you really think about it the fact that it hits 4000 makes it sweet, and anything over that is a bonus.
What are some of the combos you have or were looking into.
Dean
I have a little .17Predator that'll make 4100 with a 30gr Gold from a 24" barrel. A friend had a variant of it that clocked 4500+ thru two chronos, front to back! Started "poof"ing 30s real quick, but he had the photo proof to back it up...
I also presently have a fast twist .22-243AI that smokes 75s @ 3600+. They're running right at 3500 in the cold months. This combo is just about ideal for me, wicked flat, low recoil, easy to load, great brass life....and hateful on a coyote!
I know close to a dozen coyote hunters who've adopted a fast twist .22-243AI since a friend & I split a reamer & built ours. To a one, they have nothing but praise for it! Some run 75s, others prefer 80s in the 3500 fps range. Some Amaxs, some VLDs...cool thing is, its great to be able to draw from their collective experience, as well as my own! Same reamer, same smith, just different guys around the country runnin' the same little demon and pounding coyotes in the dirt with them...
In hopes of making a great thing even better, I'm just about ready to experiment a bit more with the .22-243AI. Building a second rifle (a switch barrel rig) with another 1:8 twist for the heavies, and a 1:12 twist as well. Have a bunch of 60gr JLKs (.339bc) to mess with from the slower twist, hoping they'lll go 4100+ from a 26" tube. If so, that'll beat my current favorite by a few inches out to 400yds. And the recoil should be slightly less than the mild snap that the 75s allow. Really lke being able to see the coyote drop in the scope, that is a high criteria for what I want in a coyote rifle...
This project is what piqued my interest in knowing how fast you were pushing that 85. Similar b.c. & likely similar MVs, but I can only guess without asking first???
Have other buddies with some varmint hotrods that'll raise an eyebrow, too. One has a .243Catbird 6-270 Improved) that throws 70B-tips @ 4050. Another has a slow twist 6-284 that launches 55Btips @ 4350! Both are hell-on-wheels coyote destroyers. But both are getting into an area where recoil & muzzle blast is more than I'd care to endure on stand...
Anyhoo, was just curious to see how & where your 'hotrod' fit amongst those!
When this switch barrel rig is done, I'll have my Magnetospeed V3 handy & snap some pics of what each will do. Best way to prevent the BS flag from being thrown is to have the honest proof at the ready...
Have fun!
