3rd Annual 2017 - My Black Rifle shoots sub-MOA groups all day long challenge!

Trinimon

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Wow, we're now on our 3rd annual challenge!

Earn some CGN bragging rights on your black rifle(s).

You may download and print out one of the targets below or your own (see rules below).

MOA Challenge 1MOA Diamond Targets
MOA Challenge 1.5MOA Diamond Targets
MOA Challenge 1.5MOA Square Targets
MOA Challenge 1.5MOA Circle Targets

Rules:

1. Shooters may download and use any one of the above targets OR they may use their own provided the target has marked 1" grids such as scope sighting in targets etc. Home made targets will not be accepted.
2. Targets are to be set no closer than 100 yards. Shooters must indicate yardage if they are beyond 100 yards in their entries.
3. Shooters must complete five 5rnd sequential groups preferably on a single target during one sitting ie no multi-day or "best of" combined shots.
4. Four of the five groups MUST be 1MOA or better to enter.
5. Shooters may use any means to stabalize/assist their rifles ie bipods, sand/bean bags, packs, squeeze bags, a block of wood, lead sleds, tripod etc.
6. Shooters must include a clear photo of the FULL completed target showing MOA calculated groupings, the rifle used, a brief description of the rifle's specs (brand, barrel length, optics etc) and ammo used ie factory type/brand, caliber, bullet weight or reload info if you feel inclined to share.
7. Shooters can have their name moved up to the next level if they improved on their last successfully completed entry using the same firearm.
8. Shooters can have their name in different levels by submitting entries for different firearms.
9. Challenge ends and final entries submitted before 6pm EST December 31st, 2017.

Shooters who have completed this challenge successfully will have their name posted in the leader board below.

- If your rifle shoots 3/4MOA to 1MOA on ALL five groups, your name gets added to the gold star list.

- If your rifle shoots 1/2MOA to 3/4MOA on ALL five groups, your name gets added to the double gold star list.

- If your rifle shoots 1/2MOA or better on ALL five groups , your name gets added to the triple gold star list.

- If four of your five groups are sub-MOA, your name will be added to the honourable mentioned list.

- If three of your groups are sub-MOA, please try again on your next range session.


<<<<<LEADER BOARD>>>>>


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- Successfully Shot 1/2MOA or better -
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- Successfully Shot 3/4MOA or better -
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- Successfully Shot Sub-MOA -
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SQR See Post #6
SpinalMath See Post #22
Redshooter See Post #26

~ Honourable Mention ~
Redshooter See Post #15

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Sorry folks, got to retract the free prizes as I'm now unemployed. Strictly bragging rights this time around.

By definition: 1MOA = 1.047"
A circle with a 100 yard radius (distance from the center to the edge) would have a circumference of approximately 628.32 yards or 22,619 inches (100 x 2 x pi = 628.32 {pi is about 3.1416}). Dividing the circumference in inches by the number of minutes in a full circle gives a value of about 1.047 inches (22619 / 21600 = 1.047). Thus, changing a sight's elevation setting by 1 minute of angle changes the bullet's impact point by 1.047 inches at 100 yards. And the bullet's impact point would change by 2.094 inches at 200 yards (1.047 x 2) and change by 3.141 inches at 300 yards (1.047 x 3).
 
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I've been waiting for the update, your timing was great, my shooting not so great. I pulled a bunch of V-Max I loaded for a 22-250 I never bought (kinetic pullers and bare feet are a bad combo) just for this purpose and just before I hit the range Trinimon updated the challenge...I thought it was a sign from the Gods, but no, 4 groups from 1.3" to 1.5", one was 2.25". I need more bullets.
 
Well anyways I have given it another 100 yd shot, no pun intended. Here is a target from Feb 28th with my 30 Herrett AR,

20" Jury Custom Barrel - rifle gas system ( target crown, no muzzle device note: rifle jumps and not good for follow up shots)
NEA billet receiver set
CMMG Semi Auto BC
6.8 SPC bolt
ASC and CP 6.8 SPC Magazines
HIPERTOUCH® 24C Trigger
Seekins Ambi Safety
Yankee Hill push/pull take down pins
BAD lever
LuthAR Stock
JP Silent Captured buffer Spring System
DiamondHead rail
CMMG charging Handle
Nikon 308 scope- 4/16
P.E.P.R mount
Weaver AntiCant level
Cheap UTG bipod......yes I am looking for a better one.

Receiver is lapped and was re-torqued after 200 rounds. Cam pin head has rounded corners for clearance.

.308 110 Sierra Varminter pushed by 28.3 gns (not max load at 2608 FPS average) of I4198 and CCI Mag Large Rifle primers in Remington 6.8 SPC brass cut to 1.575", No crimp.

The barrel has 500 rounds through it and is just shooting itself in.

Top right, I had an outstanding first four shots then I became unglued and had a mini panic attack (I could see it was a good one)....Realized I pulled it as soon as the shot went off. Bottom right was after walking 100 yards after a new shooter asked for a target change. It would be nice if I was alone to get the Kadence down pat and consistent barrel temperatures.

All five shot groups.

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(Note: the rifle pictures are from last month)
 
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Doesn't the 30 Herret use the rimmed 30-30 case? Do you mean 6.8spc neck up to 30? Very nice set up and groups..
Might have to give my new SA20 a test run for this challenge.

Herret rimless tactical,HRT. Google came through for me. Interesting round
 
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Doesn't the 30 Herret use the rimmed 30-30 case? Do you mean 6.8spc neck up to 30? Very nice set up and groups..
Might have to give my new SA20 a test run for this challenge.

Herret rimless tactical,HRT. Google came through for me. Interesting round

The old Thompson Center Contender vintage cartridge is a 30/30 parent case that the 30 HRT and the 30 Herrett AR from ARPerformance.com are derived from. We all know a rimmed case will not work so the identical 6.8 SPC case demensions will lend itself perfectly for an AR round. I have the 30/30 in this picture to compare it with the number of bullet weights I have used in the 30 HAR along with a 5.56, 6.8 (parent case), 2 x 7.62 and a .308 for comparison.

9f9a797c9e0a46f76cd64ffd5de0fc18_zpsp6xwnore.jpg
 
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Damn, missed the 3/4MOA group by a single pulled shot! Damn fine shooting. Congrats! First entry into the 2017 leaderboard has been entered. :)
 
Edited...

I've been playing with OnTarget on and off since this afternoon. I'm now confidant I've managed an Honorable Mention.

The Rifle is a 20" Colt HBAR Upper, and Spikes Lower. The Scope is an old Bushnell Scopechief 1.5-4.5X24. Load is 75gr Hdy HPBT, and 23.0gr H4895.

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Here's my original measurements...it's difficult to figure out the edge. I see why people use software, anything other than OnTarget?
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I think it's safe to say my 1.5-4.5X24 Scopechief is holding me back. Time to scrap the van and sell the Xterra. Perhaps I should try gofundme...
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I'm waiting for decent weather (ie - non hurricane like) and time to get to the range on a weekend to have a go at this. Load testing has given me a number of sub-MOA loads with one well under 1/2" so we will see what happens when I shoot for groups.


Mark
 
got a few rifles to test soon
dpms g2
apc
swiss arms

if they dont cut it ill try again this year with my noveske maybe ill do better than an honorable mention this year
 
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