What oddball AR-15 calibers you shooting?

6mm DTI.
L: 223 Remington 55gr FMJ @ 3200fps
R: 6mm DTI 55gr NBT @ 3550fps
from 22" barrels
20180427_104446.jpg
 
not shooting this one but what about 17-5.56 don't even know it's worth the effort .

kakindustry.com

17-5.56 AR15 Barrel, 18", HBAR, Fluted

Elevate your AR-15 build with our precision-crafted Custom Barrel in 17-556 caliber, boasting an 18" length, SPR profile, and fluted design for enhanced accuracy and aesthetics.
kakindustry.com kakindustry.com
 
This is my kind of thread! Hopefully I don't forget one!

Currently have:
22lr
204
223AI
6.5 G
2) 30 RAR
American 30 (6.8 necked up)
3) medium frame 243 W
large frame 300 Saum

Have had:
22 Nosler
243 lbc/ 6 predator
20 prac
17-223
6x6.8
22x6.8
260 R
308
25 Wssm
243 Wssm

I probably forgot something along the way. Each one has been a learning experience, some more than others, especially the wildcats. My favorites depend on the use. For small furries or feathered varmints the 204 is VERY hard to beat, especially where you don't want a big bullet bouncing around like cattle lots or shooting pigeons off of grain bins. The 30 RAR is just cool and puts 300 Savage performance in a small frame AR but it's pretty much dead. The 300 Saum just makes you grin to pop steel at longish ranges and it hits hard. The 17-223 was an absolute Lazer and vaporized everything it hit. Way fun. The 6.5 Grendel hits out of it's weight class and ammo is cheap from PSA now.

But, my DPMS G2 243's are the workhorses for anything above pdogs. One is set up with thermal, and the others are my day coyote rifle and my daughters everything rifle, both wear Burris Eliminators and they're all just deadly accurate to 500 at least. They are a few ounces heavier than an AR-15 but much smaller than an ar-10. Just killed a big ol alpha male coyote as a target of opportunity while deer scouting yesterday evening at 365 yds in a stiff wind. That was with my girl's rifle that I just set up, I think it's its first kill.

Hopefully that's not more info than you were asking for lol!
 
Sgt_Mike said:
not shooting this one but what about 17-5.56 don't even know it's worth the effort .

kakindustry.com

17-5.56 AR15 Barrel, 18", HBAR, Fluted

Elevate your AR-15 build with our precision-crafted Custom Barrel in 17-556 caliber, boasting an 18" length, SPR profile, and fluted design for enhanced accuracy and aesthetics.
kakindustry.com kakindustry.com
Click to expand...
Honestly it's super easy once you get few things down .
Really the hardest part for me was forming brass .
Found out the easy path is to take a .223 full length die but it , run your bras though that first THEN though the 17-5.56 die will get near about prefer forms 100% of the time vs a 30-50% crush rate without it ....and it's cheaper then the whole bushing die thing
 
204 AR said:
This is my kind of thread! Hopefully I don't forget one!

Currently have:
22lr
204
223AI
6.5 G
2) 30 RAR
American 30 (6.8 necked up)
3) medium frame 243 W
large frame 300 Saum

Have had:
22 Nosler
243 lbc/ 6 predator
20 prac
17-223
6x6.8
22x6.8
260 R
308
25 Wssm
243 Wssm

I probably forgot something along the way. Each one has been a learning experience, some more than others, especially the wildcats. My favorites depend on the use. For small furries or feathered varmints the 204 is VERY hard to beat, especially where you don't want a big bullet bouncing around like cattle lots or shooting pigeons off of grain bins. The 30 RAR is just cool and puts 300 Savage performance in a small frame AR but it's pretty much dead. The 300 Saum just makes you grin to pop steel at longish ranges and it hits hard. The 17-223 was an absolute Lazer and vaporized everything it hit. Way fun. The 6.5 Grendel hits out of it's weight class and ammo is cheap from PSA now.

But, my DPMS G2 243's are the workhorses for anything above pdogs. One is set up with thermal, and the others are my day coyote rifle and my daughters everything rifle, both wear Burris Eliminators and they're all just deadly accurate to 500 at least. They are a few ounces heavier than an AR-15 but much smaller than an ar-10. Just killed a big ol alpha male coyote as a target of opportunity while deer scouting yesterday evening at 365 yds in a stiff wind. That was with my girl's rifle that I just set up, I think it's its first kill.

Hopefully that's not more info than you were asking for lol!
Click to expand...
I have a Gen 2 and have been thinking about doing an upper in 243.
 
In the AR15/AR10 platform I have the following:

.223/5.56
6mmx45
22 ARC
6mm ARC
TAC 30/.30 HRT
.50 Beowulf
.458 SOCOM
6.8 SPC
6.5 Grendel

.308 Win
.358 Win
.338 Federal
7mm-08
.243 Win
 
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Here's what I currently have:

22LR
204
221 Fireball
222
223
224 Valkyrie
22 Nosler
22 ARC
6 ARC
6.5 Grendel
350 Legend
 
Last edited:
Nonnieselman said:
6x6.8SPC w/ 85gr Sierra BTHP
Click to expand...

Running a 6x6.8spc incarnation called the 24 Varminter here. I've shot a lot of coyotes and other critters with it. It's accurate and effective.

My only complaint with the 24 varminter is the initial trimming of brass. Seems like a lot of unnecessary brass shavings removing neck length that could have been left alone. If I was to do it again, I'd want a version that is simply a necked down 6.8spc and leave the neck long similar to the 222 remington.

The New Rebranded 24 Varminter Rifle Cartridge with Mad Dog Weapon Systems | Varminter Magazine

www.varminter.com www.varminter.com
 
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