The 22UM

[khuber84]

Ran 73gr hammer absolutes to 3700 from a 22" 8tw creedmoor(very full case of rl26), they shot well, killed well, but bc sucks.

 

[bradgrace]

How much more velocity are you expecting over a 22 creedmoor?

 

[atmat]

Just out of curiosity: what actions are you (@Ryan Avery and @Formidilosus) going to run your 22UMs off?

 

[Formidilosus]

Just out of curiosity: what actions are you (@Ryan Avery and @Formidilosus) going to run your 22UMs off?

Tikka.

 

[atmat]

Tikka.

My man.

 

[The Fish Box]

It will be interesting seeing what bullets make it to the target after you get 200 ish rounds down the bore. I need to go back and look at some threads in the 22-284 to compare.

 

[NSI]

What’s the theory on BC vs velocity for danger space calculation?

IIRC, going high BC to minimize horizontal dispersion due to wind calls was the biggest single improvement in hit probability.

In that vein, how does the faster and lower BC 22UM danger space compare to the slower (lol) and higher BC 6UM danger space in a 5-10mph wind?

Drop is math. Wind calls are art. Seems like minimizing the impact of the art would be … most prescient.

-J

 

[longrange13]

@Formidilosus @Ryan Avery Any velocity numbers available yet or still waiting on tooling etc?

 

[Ryan Avery]

@Formidilosus @Ryan Avery Any velocity numbers available yet or still waiting on tooling etc?

Still waiting on the reamer.

 

[amassi]

@Formidilosus @Ryan Avery Any velocity numbers available yet or still waiting on tooling etc?

The straight 22 saum or 220 redline was shooting 70gr Barnes tax at 3900 fps.
An improved +p 22 um probably capable of 3700 with an 88.


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[longrange13]

The straight 22 saum or 220 redline was shooting 70gr Barnes tax at 3900 fps.
An improved +p 22 um probably capable of 3700 with an 88.


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Thanks for the info. That would be a gun to own. I’d love to see some impacts on bone and see how the eld handles it at those speeds. Behind the shoulder and its lights out.

 

[Ryan Avery]

Thanks for the info. That would be a gun to own. I’d love to see some impacts on bone and see how the eld handles it at those speeds. Behind the shoulder and its lights out.

Just a guess, but I am gonna bet it will be just like the 6.5-300W with 147 ELD-Ms. I've seen two elk shot in the shoulder, one at 90 yards and the other at 150 yards. It was devastating and DRT.

 

[longrange13]

Just a guess, but I am gonna bet it will be just like the 6.5-300W with 147 ELD-Ms. I've seen two elk shot in the shoulder, one at 90 yards and the other at 150 yards. It was devastating and DRT.

That’s killer performance. Going to be really cool to see. Not to mention you could have 3 rounds of 22 um in an elk before it knew what’s up.

 

[Ryan Avery]

That’s killer performance. Going to be really cool to see. Not to mention you could have 3 rounds of 22 um in an elk before it knew what’s up.

Probably best to stay off the shoulder under 300 yards with the 22 UM or 6UM if you like meat

 

[longrange13]

Probably best to stay off the shoulder under 300 yards with the 22 UM or 6UM if you like meat

Haha you don’t like fist sized holes in your steaks!? You are right tho, probably an unnecessary question. I’d imagine anyone building a 6um or 22um is proficient enough at shooting to put it behind the shoulder at any distance.

Down here in southern Utah folks are shoulder shooting elk with 243 win varmint loads and wondering what went wrong.

 

[Xbow hunter]

Any sign of the reamer showing up?

 

[B23]

FWIW, I'd keep an eye on your brass length and be mindful not to get it to short. These overbore cartridges like a 22UM and brass that's a bit short tend to build carbon rings very quickly.

 

[ZWA]

@Ryan Avery are you sure you are not a Texas boy? Fetish for fast 22’s runs deep here in the south lol. Been running 88’s in a 22-250 for a couple years now.

 

[Muledeerfanatic]

Haha you don’t like fist sized holes in your steaks!? You are right tho, probably an unnecessary question. I’d imagine anyone building a 6um or 22um is proficient enough at shooting to put it behind the shoulder at any distance.

Down here in southern Utah folks are shoulder shooting elk with 243 win varmint loads and wondering what went wrong.

People in southern Ut also drink tequila with mountain dew
just sayin

 

[amassi]

People in southern Ut also drink tequila with mountain dew
just sayin

Ngl that sounds delicious


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