Show your Tikka ten round groups

[jikkyo]

Factory Tikka 223
75gr ELDM over N140. Around 2870fps on chrono
20 shot group.

Pretty happy with this result.

 

[BLJ]

Factory Tikka 223
75gr ELDM over N140. Around 2870fps on chrono
20 shot group.

Pretty happy with this result.

What length barrel?

 

[jikkyo]

What length barrel?

22”. Stainless T3X lite

 

[NWBLKTAIL]

Factory Tikka 223
75gr ELDM over N140. Around 2870fps on chrono
20 shot group.

Pretty happy with this result.

How many grains N140?

 

[jikkyo]

How many grains N140?

That’s book max at 25grs. I think I had some loaded at 24.5grs too mixed in there.

 

[stan_wa]

Got my dad a tika for Christmas
It’s a 243 with an eight twist in the process of trying different load combinations now first thing we did was test bullets each of us shot groups with the 112 match burner, the 108EDM, and the 108 elite Hunter below is my testing

The first image is 8 x 112 mb, 15x 108 eldm and 12 x 108 eh

The 108 eldm is best with a Mr of .39 for my 15 shot group and .34 Mr for my dads 10 shot group


And here is my dad’s. He shot three groups of 10 one for each of the bullets.

Next step find max pressure for the 108 eldm with h4350, h1000 and h4831sc

 

[Tommyhaak]

Got my dad a tika for Christmas
It’s a 243 with an eight twist in the process of trying different load combinations now first thing we did was test bullets each of us shot groups with the 112 match burner, the 108EDM, and the 108 elite Hunter below is my testing

The first image is 8 x 112 mb, 15x 108 eldm and 12 x 108 eh

The 108 eldm is best with a Mr of .39 for my 15 shot group and .34 Mr for my dads 10 shot group


View attachment 1023797 And here is my dad’s. He shot three groups of 10 one for each of the bullets.

Next step find max pressure for the 108 eldm with h4350, h1000 and h4831sc

Super exciting and cool to get to do with your Dad. Consider using extreme spread (ES) instead of mean radius (MR). MR really doesn’t tell us anything…you need to see the targets to understand that group size. We really only care about our worst rounds when it comes to making a shot hunting. You can also have a great sounding MR with a bad ES, and a great ES with a bad sounding MR.

 

[Mattyq17]

Got an 8-twist tikka 243, shooting factory Federal Premium loaded 95 grain Berger Hybrid Hunters. These are shots 11-20. The last two are the ones outside the main group, damn mirage got me..

 

[SBR Sarge]

I bought some Bone Frog 5.56 loads and took them, and some others to the 100 yard line with my 16” Tikka.

Temp was about 50, mild breeze almost deed behind me. Seated position. Harris bipod with rear bag, NF 2.5-20 scope. Sig SRD556 can, (U.S. OG six-five is enroute.)

The 70TSX was OK but not stellar, with a 10 shot group at 1.24” and a 5 shot group at 1.63”.

I’m not hating the Bone Frog 62gr TTSX loads. In the center group, I did the three lower/right shots and adjusted a bit, then finished the magazine off. Then I shot the 10 round .96” group. These gave 2804fps.

I continue to like the BlackArc NAS3 62gr TTSX loads. I had a superb 4 shot group going until I pulled the fifth. Damn, nobody to blame but myself, I forced the shot. These loads gave 3101fps, 300fps faster than the Bone Frog 62TTSX loads. The bolt handle was a bit tight to open.

One of these 62gr TTSX loads will be my load of choice on my next pig hunt.

 

[JMundy84]

Shots 5-14 on a brand new 16" 223 shooting some 55gr nosler varmageddon

 

[Reece123]

Doing some testing with the new 20” 1:8 243. 100 yard groups using H4831 sc, starline brass, and cci primers
View attachment 1022752

How many grains of 4831?

 

[stan_wa]

Super exciting and cool to get to do with your Dad. Consider using extreme spread (ES) instead of mean radius (MR). MR really doesn’t tell us anything…you need to see the targets to understand that group size. We really only care about our worst rounds when it comes to making a shot hunting. You can also have a great sounding MR with a bad ES, and a great ES with

I don’t think that’s true. We can assume that bullet distance from center or radius is a normal distribution, mean radius will then converge and on the infinite data set result faster than es . Both are helpful
But as a single number Mr is more useful. Mr and standard devistion on the independ radii combined by doing Mr + 2 *sd . Will
Give you the single best number but having done this a bunch of times what your realize is that your sd scales with Mr. So you almost never a Mr go and sd go down ( this would mean a normal looking group vs a group that looks like a ring for example )

And so Mr is great the problem with es is that it doesn’t give you a good idea what most shots do and is very easily driven by shooter error especially with larger group sizes

 

[Castle Rock]

I don’t think that’s true. We can assume that bullet distance from center or radius is a normal distribution, mean radius will then converge and on the infinite data set result faster than es . Both are helpful
But as a single number Mr is more useful. Mr and standard devistion on the independ radii combined by doing Mr + 2 *sd . Will
Give you the single best number but having done this a bunch of times what your realize is that your sd scales with Mr. So you almost never a Mr go and sd go down ( this would mean a normal looking group vs a group that looks like a ring for example )

And so Mr is great the problem with es is that it doesn’t give you a good idea what most shots do and is very easily driven by shooter error especially with larger group sizes

Spoken like a true egg head
It’s the outliers that lose matches and miss or wound game