2024 Cold Bore Challenge

Joined
Oct 4, 2015
Messages
364
Finally found some time to get out and get day 1 done!

MER: 600 yards (will extend to 800 if I have time before the end of the challenge)

Equipment:
Zermatt Origin action
Timney Trigger
NX8 2.5-20 Mil-C
XLR Element 4.0MG
24" Carbon Six Barrel in 6.5 Creed
140 ELDM/H4350/Alpha brass @2780
Dead Air Nomad Ti
Ckye pod
Molinator
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Target was at 590

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Weather today was 74 degrees, with a 12-17 mph wind, switching between 5:30 and 6 o'clock, my favorite!

I realized in hindsight that the quality of the video was not great, but, obviously I couldn't reshoot it lol. Ill try to do better for shot 2!



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Joined
Jun 27, 2018
Messages
360
Location
ID
Made it out to do the first shot this morning. This rifle just got a new scope and I added a suppressor, so I had time to take it out last weekend to do a quick 200 yard zero and had not shot any further than that. So, I chose a close MER for this first shot because I wouldn't shoot any further given the situation anyways.

MER = 450 yards (But since I hit my first shot, I am going to push the second shot.)

Browning X-bolt SR in 7prc
Maven RS1.2 Scope
DD LTi suppressor
Backpack front rest and TAB gear rear bag
175gr eldx with 65gr H1000

8" Steel plate

First shot 462 yards and dialed 1.9mil no wind hold. It was gusty, but I shot when it died down - HIT!

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Take Away from the first shot. My zero might not be quite perfect or my assumed velocity might not be quite right. The shot broke clean close to the center of the plate and I was about .1 or .2 low. For my next shot ill add .1 or so.

Day 2. Windy again but it was mostly a headwind. Tired, Headache, and dust in my eyes.
584yards - 3.1 mils dialed and no wind hold. 3.0 was the elevation and I added a mil because I think my zero is a touch low. - HIT!

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Just nicked the outside edge of the 8" plate. I was pretty happy to hit that one with the wind blowing in my face and not feeling super confident in my zero. I'm definitely going to spend some more time confirming zero after this.
 
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Slick8

Lil-Rokslider
Joined
May 8, 2019
Messages
156
I have a new rifle that I’m running a starting load just to get a little time on the barrel.

Alamo Precision Rifles in 338 Edge long throated for 300 Berger’s.
Def An-Ti, Bartline 9.3 twist, Trigger Tech, SSR gilled brake in a Manners Pro Hunter.

I’ve ran about 25 rounds through her, seeing about 1.5 inches at 300 yards from the bench and fired a few rounds last week in extreme heat and mirage to validate at 600.

I arrived a bit late this morning to a crowd at the public 600 yard range and asked the guys to not shoot a particular steel target. No such luck.

I did 1 cold bore from my tripod using my day pack for rear support at the paper. The video is from my phone as I don’t have a phone scope. If this is not suitable, please let me know, there's no hard feelings. I’ll try again next weekend for a follow up shot.
I’m going to try positioning my phone vertically and a bit farther back to get me in frame. This is a first attempt so a bit of a learning curve.

MER is 600 yards.
Conditions;
*Shot 1; temp 90 and wind was 8-10 from the 7 o'clock.
Load; starting load, 89 grains of H1k, Fed 215m and a 300 Berger.

The target is 3 inches in diameter and I added a paint can for scale.

Thanks,
Craig

The music was an accident, I didn't hear it playing in the background but I do like how the crowd cheered when I shot. 😀



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ljalberta

WKR
Joined
Dec 7, 2015
Messages
1,529
Squeezing in this year since I missed the last one.

The Rifle:
Barrett Fieldcraft - 6.5CM 18"
Murphy Custom Rail
Farrell Rings
SWFA 3-9
Weight: 6.85lbs

The Ammo:
CE 125 Lazer
H4350 43gr
Lapua SRP Brass
CCI 450
Velocity: 2820 FPS

Conditions:
23*C
Winds 6-12 km/h blowing from in front and the left
Pretty good mirage

My MER in a hunting scenario is probably 450 yards with this setup, although I stretch it out further at the range. That being said, I've been really challenged by the fact that the vast bulk of my shooting is from prone or from the bench, and when it comes to backpack hunting, that's not always possible. I wanted to challenge myself (embarrass myself) by either stretching the prone MER to 600, or doing a 450 MER, but shooting it from an awkward field shooting position. I chose the latter as I figured it will really show me how bad I might be at shooting from unfamiliar positions.

Target is a 10" metal gong set at 456 yards.

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Shooting position is from the top of this stump that is the awkward height of being too short to take a standing shot, but too tall to kneel behind comfortably. If I leaned too far into it, it would start to shift as well. As such, I was setup in a tall kneeling position, and where I would normally use my pack rested on the ground to take up the negative space under my right shoulder, the pack was about 10" too short. I only allowed myself the items below that are normally in my pack anyway (or in the case of the custom shooting log, were found on scene).

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Support Equipment:
Pack
LS 2-5 Shooting Bag
Foam Butt Pad
Custom Shooting Log

Day 1 Result - Clean Miss. I held .2 mil during a slowing in the wind with 2.3 mil dialed up in elevation. Wobble zone was too large from this position, and I felt very little confidence in getting a hit once I got behind the rifle and couldn't get a decent shooting support built up.


What I learned is I need to spend more time practicing building out actual field support shooting positions. Not only was it incredibly slow, but I really didn't find a super supportive position. I might try the second shot from some trekking poles, or maybe I'll head back to this stump for more punishment. Either way, I think a lesson is more time spend shooting in the field, and less from the pure prone position or at a range bench for me.
 
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Stephmae

FNG
Joined
Apr 12, 2020
Messages
11
Maximum range 445 yards
Tikka 7 s a u m
180 Hornady

Full disclosure…. My husband puts me up to this every year. I don’t practice much so I look forward to it. I still rely on him for distances and where to hold in the wind. Both of my shots landed within 1” so I’m happy. And I shot better than my husband!!!!

Day 1
Strong wind from the right, held 6” right
mid day
Temp 70ish

Day 2
Still strong wind. Held same spot
Mid day
Temp 70ish
 

Juan_ID

WKR
Joined
Feb 25, 2012
Messages
1,510
Location
Idaho
Nothing like waiting til the last minute ehh?
This thing snuck up on me and I was definitely not as prepared as I should have been.
MER for the moment is 575, shot 1 was at 550. I will push it to 575 or 600 for day 2.
Gear:
Tikka t3x 20” preferred barrel prefit 22GT suppressed w/ cgs Hyperion k

Load:
Alpha Brass
88 eld
34.7gr H4350
cci450
2975fps mv

KRG Bravo
Leupold Mark4 6-24x52 w/UM tikka rings
MDT lightweight ckye pod

Day 1: overall pretty calm day, about 80* with very little observed or felt wind. Held about .1 left, impact was low. Not sure what that’s about but I’ll try and adjust for it tomorrow morning.

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Day 2: Was pretty windy today and I’d guess 70* setup at 593 yards. When setting up the plate I guessed 10 mph wind from 3 o’clock. Plugged in 10mph into the revics and it said hold 1 mil but it felt a little stiffer than my initial guess so I decided to hold a little more. I also dialed an additional .1 of elevation and still hit a little low. I am not sure if my zero isn’t perfect or I just suck. I’ll try to diagnose the rifle shooting low later this week.
Not sure why it uploaded as a “short” and also accidentally recorded it in slow-mo and decided to keep the shot slow for dramatic effect. 😂
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Antares

WKR
Joined
Jan 13, 2021
Messages
1,834
Location
Alaska
Realistically, my MER is about 400 yards, but in the spirit of this being a "challenge", I set up a plate at 628 yards this year. Shot was -3° across a little valley that leads up into a bowl. (Spoiler: I missed both shots.)

Tikka 6.5CM 18"
NXS 2.5-10x42
KRG Bravo
CGS Hyperion
140 ELDM factory load

Shot 1: MISS
6:45 am; 39F
Wind was about 5 mph and switchy at the shooting position, coming in from one side, dying off, then coming in from the other. I decided to hold 2 MOA right, then chickened out and decided to wait for a lull and shoot straight at it. The lull came and I missed left.

Shot 2: MISS
9:00 pm; 61F
No wind at shooting position. Missed left (and maybe low?).

(Side note: I'm real jealous of guys that get splash on the ground for spotting misses.)

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Shot 1:

Shot 2:
 
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Joined
May 16, 2023
Messages
2
I’m shooting my dad’s rifle. It’s a 7 short action ultra mag.


We shot at 445 yards while camping.


The first day it was warm and sunny and the wind was blowing from the right. The second day was similar.


I aimed 3 inches right the first day.



The second day I forgot and aimed right at the white dot.
 
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