I would settle for a 77 tmk. Just sayin......1-8” will generally work for the 88’s in a 22-250, but a 1-7” or 1-7.5” is better.
And we need a 90+ grain TMK.
Randy
I would settle for a 77 tmk. Just sayin......1-8” will generally work for the 88’s in a 22-250, but a 1-7” or 1-7.5” is better.
And we need a 90+ grain TMK.
What are the barrel lengths on those rifles?I have multiple 223AI’s to be honest, built on Sako/Remington/Kimber rifles.
With the latest one (Remington) and 88’s I’m at 2740 fps. I could probably get more speed but I basically did load “development” by finding pressure and then backing off some and making a handful to confirm. First five shots made one ragged hole so called it good enough and shot the rest at 800 to get an idea of velocity for the dope.
With the Kimber and moly’d 75’s I’m at 2980 fps. Brass life isn’t spectacular though, maybe 5 reloads on average with Lapua brass and no annealing. The 1:9 twist is on the bubble for stability though I think.
Remingtons and Kimber are 22”, Sako is 24”. (The Sako is 1:14 so it doesn’t get shot at all and needs to go down the road, but it spits moly’d 40’s at 3800+ and 45 gr TSX at 3750.)What are the barrel lengths on those rifles?
That makes me hopeful. I’m cutting my 223 down to 16” and I’m going to AI it and shoot the 77 TMK. I want to be around 2600fps at the muzzle so I’m above 1800fps around 500 yards where I hunt. I think I should be able to get that.Remingtons and Kimber are 22”, Sako is 24”. (The Sako is 1:14 so it doesn’t get shot at all and needs to go down the road, but it spits moly’d 40’s at 3800+ and 45 gr TSX at 3750.
Not sure how much extra the AI will buy you, but I have a Ruger American Ranch at 16.5" and it gets a bit under 2600fps with the UM factory 77tmk (@ AR mag length, loaded with XBR 8208) ...I think you'll break 2600.That makes me hopeful. I’m cutting my 223 down to 16” and I’m going to AI it and shoot the 77 TMK. I want to be around 2600fps at the muzzle so I’m above 1800fps around 500 yards where I hunt. I think I should be able to get that.
Getting 2640fps with 75 amax's outta the same rifle. They are loaded a bit further out thoughNot sure how much extra the AI will buy you, but I have a Ruger American Ranch at 16.5" and it gets a bit under 2600fps with the UM factory 77tmk (@ AR mag length, loaded with XBR 8208) ...I think you'll break 2600.
You might be in kissing the lands with those, just check when you get them. In my factory chamber those would be .020 into the lands. Assuming your talking a tikka.
It is a tikka. My newbness is shining through today! Solid points on the wind calls past 350/400. I still have a lot to learn in that department and don’t plan on slinging rounds at game just because the gun can do it. I’ve walked away from 500 yard shots before so I’m sure I can do it again if need be.You might be in kissing the lands with those, just check when you get them. In my factory chamber those would be .020 into the lands. Assuming your talking a tikka.
Is that small hole at top left an exit? Looks like the bullet impacted at quite a steep angle.