Sierra Heavy TMK 6MM Testing

[philcox]

16" or 18" barrel?

18” 6CM. First shots down a new tube.


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[Chris in TN]

18” 6CM. First shots down a new tube.


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Thank you. That's encouraging. I want to hit 2800' with an 18". Sounds like it'll be easy-peasy to do so and still be below maximum.

 

[jonnyviceroy]

Thank you. That's encouraging. I want to hit 2800' with an 18". Sounds like it'll be easy-peasy to do so and still be below maximum.

You will be able to forsure. I have a 16.5” 6cm and well below pressure I’m at 2850. Worked up to pressure at about 2940, you’ll make it easy!

 

[IrkedCitizen]

Blue collar has 88s

Sierra 22cal 88gr Tipped MatchKing

Product Information Caliber: 22 cal Bullet Diameter: 0.224" Bullet Weight: 88 Grains OAL: Bullet Style: Tipped MatchKing G1 BC: 0.525 G7 BC: 0263 Part Number: 7188 or 7188C Quantity: 100 or 500

www.bluecollarreloading.com

 

[Porthunter]

Loaded up a ladder of N555 with the 116’s. 41 grains - 43.5 grains. 20 thou off the lands. 43.5 grains shot 2800 out of 18” barrel. It’s a new barrel with only a few shots in it. No pressure signs at 43.5. Gonna load up 20
at 42 grains and shoot them at 100 and at distance to see how they shoot. Looks like they are gonna shoot awesome!

Alpha brass SRP
Cc 450 primers
2.89 col

Tikka action chambered in 6 creedmoor with Bartlien 18” barrel 1:7.5” twist.

This is exciting. Have a Tikka being re chambered to a 6creed with the exact same plan for load.

Did you measure what that is for jump in your chamber? Assuming SAAMI chamber?

 

[justin davis]

This is exciting. Have a Tikka being re chambered to a 6creed with the exact same plan for load.

Did you measure what that is for jump in your chamber? Assuming SAAMI chamber?

Yea they were 20 thou off the lands Fits in mag.