Informal Cold Bore Challenge

I’ll refrain from turning this post into a love letter to this new 6mm ARC. Took my cold bore shot with it this afternoon at a target that I’ve struggled on when shooting my 223. It’s a 4° uphill angle which doesn’t seem bad until I try to settle in on it. It’s a 10” target at 730 yards. Today’s wind was 1mph. Temp was 19° and I center punched it. The Horndy 103 ‘ELD-X ammo has been very consistent from this box. I still have a lot to practice but I think this rifle is going to be the one I tell the grandkids about.


Rifle build by @Unknown Munitions

- Action: Factory Tikka action with bolt face opened to PPC by Kempfield
- Barrel: 20” Ace barrel, Tikka profile, Chambered in 6mm ARC
- Factory trigger with Unknown Munitions trigger spring.
- Stock: Rokstok
- Scope: Maven RS1.2 2.5-15x44 in Unknown Munitions rings
- Ammo: Factory Hornady 103 gr ELD-X
- Bipod: Spartan Javelin
- Spotter: Kowa TSN-553 with a Wiser Precision Nighthawk on a SLIK 634 PRO CF
- Phone/Adadapter: iPhone with Kapture GearU
 
Just found this thread today, otherwise I would have been all in. Just starting reloading so I've been shooting a bit the last couple weeks.

Gonna out out tomorrow so I'll be sure and film it so I can participate! @YaakRiver standby for a pm, i think we might be in the same neighborhood.
 
absolutely! This isn't about a specific cartridge, bullet, rifle etc. . . It's just about being motivated to get out and get better.

That's a rad muzzleloader! With the exception of being able to use percussion caps, we're restricted to primitive muzzleloaders for hunting here in Montana. I will spare the Rockslide crowd the pain of watching me shoot minute-of-watermelon groups at 100 yards with it.
 
Today was a good day for improvement. Bad day for first round hits lol.

Rifle - ruger m77 mkii .243 win 20" barrel
Optic - leupold vx3 HD 3.5-10 duplex/cds
Ammo - 95 gr Nosler Ballistic Tips 40.5 gr h4350 @ 2954 fps
Trigger - mostly stock, light polish w/ mcarbo spring

Target range is 438 yrds, shooting at a triangle shaped target that's 10" wide at the bottom and tapers up to 4" in the upper third. Prone, cv life harris knockoff bipod, ultralight rear bag.

29ish degrees, can't remember the rest of the environmentals off the top of my head
Wind was mostly calm but varied between 1-4mph from approx 9 o'clock to 11o'clock and possibly more throughout the day.

Held just off the left edge for Wind and missed the cold bore shot. Held center and missed just off the right edge as the wind increased a little. Third shot was a winner, help left edge but on the plate.

Triangles are odd shapes and left lots of room for improvement!

Edit- don't know how to upload videos
 

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