Another tikka tinkering project

[brockel]

What made the 6 more appealing than a 25?

I like the lower recoil mainly. The 25 and 6.5 are so close with 140 in 6.5 and 134 in 25
I think Sierra will keep the 6mm cal bullets kept up in production because demand for the 6 will be a lot higher than the 25 cal bullet demand. Same for Berger. Hammer bullet option will always be there but I hate paying the prices and I like a bullet that destroys more tissue than what copper bullets do.

Can also use the hornady 243 seating die I already own so saves me a little there too

 

[Sheltowee]

I like the lower recoil mainly. The 25 and 6.5 are so close with 140 in 6.5 and 134 in 25
I think Sierra will keep the 6mm cal bullets kept up in production because demand for the 6 will be a lot higher than the 25 cal bullet demand. Same for Berger. Hammer bullet option will always be there but I hate paying the prices and I like a bullet that destroys more tissue than what copper bullets do.

Can also use the hornady 243 seating die I already own so saves me a little there too

Any concern that you’re going to overspin a lead core to the point of coming apart?

 

[brockel]

Any concern that you’re going to overspin a lead core to the point of coming apart?

Shouldn’t have issues. Even if i drop down to a 107 grain I should still be right around 300,000 but planning to stick around the 115-116 area of bullets

 

[Sheltowee]

Shouldn’t have issues. Even if i drop down to a 107 grain I should still be right around 300,000 but planning to stick around the 115-116 area of bullets

Very interested to see how this project turns out. Please keep us posted!

 

[brockel]

Very interested to see how this project turns out. Please keep us posted!

Well just got email that the barrel shipped. These 80% prefits shipping within 4 days of ordering might become a problem

 

[noharleyyet]

Well just got email that the barrel shipped. These 80% prefits shipping within 4 days of ordering might become a problem

...am sure you meant another problem.

 

[BAKPAKR]

What made the 6 more appealing than a 25?

The new Sierra 116 gr TMK!

 

[Sheltowee]

The new Sierra 116 gr TMK!

Interesting. Weird that Sierra hasn't published a BC for the 131TGK coming out next month. Wonder how it compares to the 116.

 

[BAKPAKR]

Interesting. Weird that Sierra hasn't published a BC for the 131TGK coming out next month. Wonder how it compares to the 116.

I have been watching for info on the 131 myself.

 

[mtmuley]

I have been watching for info on the 131 myself.

Me too. mtmuley

 

[brockel]

...am sure you meant another problem.

 

[brockel]

The new Sierra 116 gr TMK!

Had the throat opened an extra 0.04” just for that

 

[brockel]

Interesting. Weird that Sierra hasn't published a BC for the 131TGK coming out next month. Wonder how it compares to the 116.

I just searched TMK on sierras website and the 25 cal one is the only one that doesn’t show up anymore. Wonder if they tabled the idea?

Sierra Bullets

The Bulletsmiths®. Reloadable bullets for rifles and pistols designed for precision target shooting, hunting, and defense. Crafting a tradition of precision since 1947.

sierrabullets.com

 

[Sheltowee]

I just searched TMK on sierras website and the 25 cal one is the only one that doesn’t show up anymore. Wonder if they tabled the idea?

Sierra Bullets

The Bulletsmiths®. Reloadable bullets for rifles and pistols designed for precision target shooting, hunting, and defense. Crafting a tradition of precision since 1947.

sierrabullets.com

25 CAL 131 GR Tipped GameKing (TGK)

The Bulletsmiths®. Reloadable bullets for rifles and pistols designed for precision target shooting, hunting, and defense. Crafting a tradition of precision since 1947.

sierrabullets.com

Must be a website issue, I'm seeing it if you sort under .257 caliber.

Edit: I think I see the problem. The .25 is a TGK, not a TMK.

 

[brockel]

25 CAL 131 GR Tipped GameKing (TGK)

The Bulletsmiths®. Reloadable bullets for rifles and pistols designed for precision target shooting, hunting, and defense. Crafting a tradition of precision since 1947.

sierrabullets.com

Must be a website issue, I'm seeing it if you sort under .257 caliber.

Edit: I think I see the problem. The .25 is a TGK, not a TMK.

Well there was originally a .25 TMK in the works too

 

[Sheltowee]

Well there was originally a .25 TMK in the works too
View attachment 403297

Iiiinteresting. I've got a couple boxes of the 131 tipless SMKs laying around but I haven't loaded them in anything yet. The 134 ELD-Ms were pretty impressive out of my 25-7 and I didn't really step on the gas with them.

 

[brockel]

Very interested to see how this project turns out. Please keep us posted!

Well here’s three different powder charges with h1000 and 107 Sierra tmk seeing where pressure is. Looks like she’s going to be easy to please. Will load up 10 and see if it holds true.

 

[Sheltowee]

Well here’s three different powder charges with h1000 and 107 Sierra tmk seeing where pressure is. Looks like she’s going to be easy to please. Will load up 10 and see if it holds true.
View attachment 403608

That dog'll hunt.

 

[brockel]

That dog'll hunt.

10rounds of 107tmk at 3100fps. Only 18 rounds down the barrel so will speed up still

 

[Sheltowee]

10rounds of 107tmk at 3100fps. Only 18 rounds down the barrel so will speed up still
View attachment 403663

I would guess you have plenty of speed to go if you really want to step on them. My 25-6.5 gets a tick under 3500 with H1000 under the 95gr. Hammer HHT. The 6mm 89gr. Hammer HBC has a similar BC to the TMK and you'd probably easily be in the 3600 range, if you are so inclined. Hammer's 104gr. HHT even posts an estimated G7 BC better than the TMK but that seems... optimistic.