10 shot cold bore test at 890 yds

[Piercision Rifles]

Well I got to do a 890 yard 10 shot cold bore test with my 22" 300 WSM and 215 bergers at 2670 fps. I waited atleast 12 hours between each shot. Sometimes a couple days. Direct thread Silencerco Scythe TI was taken off between each shot and scope was returned to zero. Wasn't dead calm when I would shoot and was in all different directions throughout the test. I had between 1.1 mil left windage and .6 mil right wind for all the shots. This is a 5.5 moa window for wind calls. There was also a 35 degree range in temperatures. The kestral was perfect.

3.5" vertical and 15.75" left and right. 8 out of 10 shots were in a 7" group. 5 out of 10 shots were in a 3" group.

 

[DangerRanger]

Nice, I like the large group over multiple days cold bore thing. Very cool

 

[Piercision Rifles]

Nice, I like the large group over multiple days cold bore thing. Very cool

thanks. i know if i shoot a 3 shot group quickly itll be 2" or less vertical with this gun at 890. I wanted to see how everything including the kestrel and load would react to having it spread out over so many days with varying temps etc. Its spot on if I call the wind correct.

 

[Shō[t]gun]

If you don’t do the cold bore challenge this may turn into a Cold BOAL thread

 

[Slick8]

That impressive shooting sir.

I try to do something similar as we get close to season but it's $15 per day for essentially one shot. Although I typically shoot more once there. I have a 600 yard public range fairly close to the house and on the way home from work.

I'll stop an shoot a couple times after work and then again first thing in the morning on weekends. Giving a 20 degree temp swing and slight difference in wind. The afternoon mirage can be tough but it's also real world experience.

I've also taken 1 shot 2-600 at that range dialing back to zero and chilling my rifle in the truck between shots. My back seat vents will get it so cold I have to cover the scope so it doesn't fog over when I bring it out to the gulf coast humidity.

 

[RMM]

Nice shooting! Side note, what's the brake on the end of the Scythe?

 

[Piercision Rifles]

Nice shooting! Side note, what's the brake on the end of the Scythe?

thank you. Its the 30 cal 3 port anchor brake. I took it off my hybrid 46.

 

[wind gypsy]

I’m using the same brake on my scythe but on a 6 creed. Seems to reduce recoil more but hard to say in a rifle that doesn’t kick much to start. Have you experienced a noticeable different from the 3 port on the heavier recoiling cartridge?

Nice rifle and nice shooting.

 

[RMM]

I’m using the same brake on my scythe but on a 6 creed. Seems to reduce recoil more but hard to say in a rifle that doesn’t kick much to start. Have you experienced a noticeable different from the 3 port on the heavier recoiling cartridge?

Nice rifle and nice shooting.

Have either of you taken note if the suppression level seems to suffer from the 3 port brake? Conventional wisdom would say yes, but I'm curious

 

[wind gypsy]

Have either of you taken note if the suppression level seems to suffer from the 3 port brake? Conventional wisdom would say yes, but I'm curious

Yes, it does.

Look up the TBAC silencer summit results where they tested a sico omega with flat cap and also one with the same 3 port anchor brake. The numbers indicate a clear difference.