2026 Cold Bore Challenge

Justin Crossley

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Location
Buckley, WA
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Welcome to the 4th annual Rokslide Cold Bore Challenge

This challenge is designed to test your realistic Maximum Effective Range. The Challenge will start Saturday, June 6th, at 6:00 am MTN time on this thread. The challenge will run for five weekends and end on July 5th at midnight Mountain Time.

You shoot one shot each day of the challenge with no warm-up or follow-up shots and no practice between days. This is the Cold Bore Challenge. We want it to simulate what you experience when hunting for your BOAL.

We are limiting the challenge to the first 100 qualified participants.

Below are the rules. READ THEM ALL, OR DON'T PARTICIPATE.

We delete ineligible posts without notice. If you have questions or comments, post those on the Q&A thread here so this thread stays clean.

Once again, we are requiring video of all shots. See rule 10 below.

1) Start a post in this thread (one post per shooter) on your first shooting day. You can’t reserve a post slot unless you’ve shot and posted a video. You don't have to start on day one, but you do have to be done by July 5th to qualify for prizes. That gives everyone five weekends to complete the challenge.

2) Call the range you think is your REALISTIC maximum effective range (MER). You must shoot your personal MER, so if it’s 600 yards, you can’t shoot 100 yards because that's all you have at your range!
Minimum range for this challenge will be 400 yards. Push yourself a bit and make an effort--that's the spirit of the challenge.

3) With no warm-up shots, shoot one cold bore shot each day of the challenge at your MER. You do not have to shoot two days consecutively, but there is NO PRACTICE between shooting days.

4) Post a video of your bullet hitting or missing the target. Target size is set at a 10” circle. If your target is bigger than that, paint or mark the 10” diameter so you know whether you’re in the vitals. It's a two-day/two-shot challenge, so post a video each day in your original post, so both shots appear in one post. (Just use the "edit" button—bottom of your post on full-site, or if on Tapa Talk, hold your finger on your post for a few seconds to see the Edit option)

5) If you believe your MER is over 600 yards, you will need to qualify to shoot farther by first hitting the target between 575 and 625 yards per the rules above, both times. If you are able to hit both of the first two shots, you get to move out to your MER beyond 600 and shoot two additional days at that range. The same rules apply here as in rules 3 and 4 above.

6) Be sure to mention the conditions, like wind direction and speed. And give us a quick summary of your equipment. This is a gear site; we all want to know what our buddies are shooting.

7) To qualify, you must be a member posting on your own account. If you want your kids to shoot, they must post on their own accounts. (Sorry, just too messy for the judges to figure out what’s going on.)

8) We reserve the right to change or adjust the rules as necessary to achieve this challenge's intent. Remember, this is not a shooting contest. It’s a challenge to determine your MER with your hunting rifle and hunting gear.

9) The gear rules will be as simple as possible. You must shoot your big game hunting rifle with the gear you hunt with. That means no benches or Lead Sleds. Tripods, bipods, rear bags, and the like are allowed if that's how you hunt.

10) All shots must be recorded on video, meaning you must use a Phoneskope, target cam, or similar device so we can see your bullet hitting or missing the target. We don't need videos of you walking all the way to your target with a shaky cell phone. Please keep these videos short and to the point so we don't have to manage hours of video. All videos must have 'Rokslide Cold Bore Challenge' in their title.

How Points are Counted:

--Every qualified participant who shoots and posts videos of their two shots gets one entry. (regardless of hit or miss)

--Every qualified participant who claims an MER beyond 600 yards, hits their first two shots (between 575 and 625), and completes the two additional shots at their MER beyond 600 yards will get an extra entry. Hitting the farther target is not required for the extra entry. If you miss one of your first two shots, you won't be eligible to shoot the farther MER, but you'll still get one entry like everyone else.

--For every member with at least 300 posts (on the day we qualify you), we'll double your entries.--it pays to be an active member!

--So, sub-600-yard MER gets 1 point. Two sub-600-yard hits AND two over-600-yard shots will get you 2 points.
Members with more than 300 posts receive double points, bringing their total to up to 4 points.


This is not a competition, but because we're generous and have some great sponsors, we’ll be DRAWING for killer prizes for our qualifying members (Rokslide staff and family members can shoot but can't win the prizes)

Our staff will watch the thread to ensure entry rules are followed. If you don’t fix your post in a reasonable amount of time, we’ll delete it (sorry, we don’t have time to chase!)

We will draw from those who complete the challenge in accordance with the rules posted above.

@robby denning @Ryan Avery @realunlucky
 
Perk of being on the east coast is we can start earlier I guess. Had to work at the office this morning so I stopped at the farm on the way in to get my shot done for the day. 73 degrees and zero wind. 575 yards with my home built 7 Sherman Short. Built the gun last year with parts that I picked up here and on Longrangehunting. Its a proof 20" carbon barrel on a blueprinted 700 long action in a christensen stock with a triggertech primary trigger, beast CF brake and a Vortex diamondback tactical 4-16x44 moa scope. Ammo is handloaded 175gr Hornady ELDX over H4831sc doing 2790. MER is 750 so my first shot today was 575. I'll weedwack in front of the target when I stop back this afternoon so my kids can do their shots.
Shot 1- HIT

 
Push yourself a bit and make an effort--that's the spirit of the challenge.
Ha, I’ll do my best.

The gear:
New 6GT Barrel on an old t3 action. 18”.
Seems to be doing well with 116 TMK and 33gr Varget. Velocity is stabilizing between 2725-2736 fps.
Was hoping I’d have my Rokstok lite before the challenge. Unfortunately not yet. So the gun sits in a krg bravo, and has a 4-16 mil-r atacr for glass. OG65 rounds out the package. Everything but the barrel was hunted last fall.

I sewed myself an XL denim game changer, filled with about 2lbs of git-lite.
Rangefinder: Revic Binos.
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Day 1.
This gun should stay above 1800fps out to 750yds.
I’ll try for a 700yd MER
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Well loved 10” gong.

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Wind conditions driving out today.

Starting with 578yds:
Hit.😎 Big breath of relief
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Day 2
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Day 3
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Day4
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I'm calling 750 my goal this year.

Tikka .243AI shooting 116TMKs
Rokstok
LRHS 3-12
AB Raptor 8

Pack and a light weight rear bag
50 degrees, 5700', no wind to speak of. Pretty perfect morning for shooting.





Day 1, Shiny new 10" plate, first bullet ever pointed at it was a good center hit at 602. @Bridger1115 is the other impact this morning
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Day 2

Day 3 (?)

Day 4 (?)
 
I’m in on day 1. Going to eventually attempt an MER of 1018 yards. It’s been super windy lately, so I’m not holding my breath. But all in good fun!

Gun is a custom 6.5-7 PRC
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Currently just getting the first firing on the virgin brass with a light charge of N570.

144 Berger LRHT
66gr. N570
3120 fps

Day 1. 608 yards. A little overcast, wind at 10-15mph from 1-2 o’clock was my guess.

Mixing it up with some scope cam footage.

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Day one. I’m going to call my MER this year 850 yards. First two shots will be at 604 yards at my 10” plate.

Gun setup:
tikka T3X 6.5 creedmoor
Krg Xray chassis
Arken SH4J 6-24x50mm scope with Arken rigid mount
Area 419 pick rail
Form 1 8” suppressor
Dauntless bipod/home made rear bag with spex lite
Weighs right around 12 pounds
Hand loads:
140 midsouth black poly tips
43.5 grains Staball 6.5
Hornady brass
CCI 200
2740 fps with an SD of 7.4 and ES of 19
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Day 1- impact, 3.7 MILs up and held straight up
Minimal 2-3 mph wind sunny and calm
 
Day 1 MER 400 yards
Decided to push to 450.
Shooting 6.5 prc Springfield waypoint with maven rs 3 scope
Shooting factory Hornady 147 eldm’s
Aziak backcountry tripod with Swarovski spotting scope and ollin phone scope adapter. Shooting prone off a backpack and bino harness as rear rest.
 

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