My first pitch bullet/powder/seating depth try did 10 shots in 1 MOA so I stopped there. 109 ELD - 41 H4350 - .030” off lands. OAL is 2.860”, it fits in M+ mags but not regular M’s.
I've got the same barrel, although I throated mine to seat further out. I'm only getting 2985 with 108s and 42gr h4350. Starline brass. It seems to be a bit slow for other bullet and powder combos too. What brass are you using?
Funny enough, it’s some Hornady brass that I borrowed from a friend when I needed to get this rifle going quickly. After this firing I’ll return it, I have Starline on deck.
You also have an 8 twist barrel and that data shows it for a 10 twist barrel. Your barrel will build pressure faster and be slower due to more friction from the faster twist. Tikka barrels (in general) are slow but accurate. My 20" barrel is around 2900 with 42 grains @ 2.8" in Starline brass.
That is about all you can expect with that combo in 243, but realistically 100 fps more wouldn’t make any difference anyhow
If you’re seeing a bunch of data for higher velocities with 108s out of a 243, I’d be surprised… that is about the top end of where I’d expect to be with that combo. You could punch it AI and sneak it up to 3100-3150 but I probably wouldn’t spend my money on it, after punching out a few factory barrels in the past. Mass produce your load if it’s hammering and get to shootin.
Haha, my star line is on four reloads and some of them are feeling really loose. And, scratch that. Comment on loading it up hot with lap of brass. I told myself I was going to drop my load down to 40 or a little less for practice and longer barrel life
The Lapua brass is really worth the extra
I have heard that, but haven't seen that happen with my brass, at least not with Peterson 284 when I tried it
