Ultralight Ultralight Rifles

[packgoatguy]

Thats my thoughts. Honestly an SBR or pistol build makes way more sense for my style of hunting, but heck with the lightweight components as light as they are might as well make it as ULUL as practicable.

i think semi auto functionality makes a lot of sense in my area, and would be worth the weight penalty compared to a straight pull.

Ive killed probably close to 20 game animals with a rifle and i cant think of a single shot ive had over 100 yards.

I do the straight pull for two reasons: it's quieter with my suppressor, and saves some weight. Otherwise semiauto would be the ticket. However, with the side charger on the left, my rate of fire for follow-up shots is almost as fast as with semiauto. Just takes me some practice.

 

[ACHILLES]

Still working out the kinks with my 22ARC 12.5” gasser and the Tna lower. But I was able to get some velocities with 3 Hornady factory ammo options.

Superformance 70gr CX
Avg 2640fps

Black 75gr eldm
Avg 2590fps

V Match 62gr eld vt
Avg 2790fps

 

[KyleR1985]

Still working out the kinks with my 22ARC 12.5” gasser and the Tna lower. But I was able to get some velocities with 3 Hornady factory ammo options.

Superformance 70gr CX
Avg 2640fps

Black 75gr eldm
Avg 2590fps

V Match 62gr eld vt
Avg 2790fps

Do you reload?

 

[ACHILLES]

Yes Sir

 

[Hardly_Hangin]

Not other than coyotes with the 223 77tmk. But out of a pile of elk, deer, bear with the 140eldm and 108eldm, we usually find the bullet in the off-side hide with a cup/core bullet like that. Even with higher impact velocities. It dumps all its energy inside the body cavity. Haven't had anything go further than 100 yards, and all but a couple dropped where they stood. But none of the shots had an impact velocity lower than 2000fps.

If you are looking for exits, then a bonded bullet probably is a better bet than what I'm using.

Its not a necessity, just a curiousity. The internal damage caused by heavy for caliber fragmenting bullets observed in the 223 thread is impressive and what i want to experiment with. Just curious how lower impact velocities correlate to exit wound likelihood.

 

[Hardly_Hangin]

Yes Sir

I searched the thread and could have missed it but do you have a build list?

 

[ACHILLES]

I searched the thread and could have missed it but do you have a build list?

Have slowly been putting it together and was going to wait until it was finished to post details but here’s the list.

YMM upper Receiver
Tna poly lower receiver
DS Arms low mass bcg
Jag ultralight handgaurd
Closed shoulder smoke composite stock
V7 Ti grip screw
Hogue 15* grip
Tacom ul buffer
Superlative Ti adj gas block
Kak bbl 22arc 12.5” mid 7twist
NFA LPK

Should finish out around 4.8-4.9lbs with Sig Romeo 5 red dot and Tbac ultra 5.
Going to SBR it but wanted to make sure I was okay with the poly lower first. Just using a brace for now. But having some issues with the lower so I’m glad I waited. It’s running fine with a PSA lower receiver but with the Tna receiver the bottom of the aluminum bcg is getting caught on the trigger hammer.

Have all parts but the handgaurd and UL buffer.

Noticed parts didn’t line up that well in the poly lower. Also shot 4 10 shot groups with the poly lower that were 3.5-4moa with factory black 75eldms. Switched to the palmetto aluminum lower receiver then shot another 10shot group and it dropped to 2moa. Also with the poly lower receiver I can barely cycle my steel or aluminum bcgs. No issues with the palmetto lower receiver. So trying to figure out what’s going on there.

 

[ACHILLES]

Well I see why the DSA bcg is getting caught up now. Looked at another lower of mine with a Rock river arms trigger and the top of the hammer is much smoother. The one I’m using now has a sharp edge. The steel bcg seems to slide right over it but the Aluminum is soft enough to catch. Will have to swap these when I get a chance to see if that’s all it is.

 

[Thegman]

Well I see why the DSA bcg is getting caught up now. Looked at another lower of mine with a Rock river arms trigger and the top of the hammer is much smoother. The one I’m using now has a sharp edge. The steel bcg seems to slide right over it but the Aluminum is soft enough to catch. Will have to swap these when I get a chance to see if that’s all it is.
View attachment 813526
View attachment 813527

That's a Schmid built trigger. Not sure, but I don't think my Schmid hammer is cut like that. Explains a lot though; I don't think I've seen a hammer like that before.

Sounds like your TNA might be a little out of spec though, as well?

 

[ACHILLES]

That's a Schmid built trigger. Not sure, but I don't think my Schmid hammer is cut like that. Explains a lot though; I don't think I've seen a hammer like that before.

Sounds like your TNA might be a little out of spec though, as well?

Interesting, I’ve never had issues or noticed until now.

The saftey selector was the most noticeable. Take down pins seemed to line up well. Although I was having issues with my steel bcg using that lower too. Might not be anything wrong, will have to switch trigger and go from there.

 

[robtattoo]

BOOOOOOO!!!!

 

[Taudisio]

View attachment 813956

BOOOOOOO!!!!

I got the same email

 

[Piker73]

I just sent ER Shaw and email, specifically mentioning BCA’s new bolt action. I doubt it will do anything, but worth a try.

 

[C Bow]

I got the same email

 

[Piker73]

I got the same email

Did you mention BCA’s new bolt action?

 

[Hoosker Doo]

View attachment 813956

BOOOOOOO!!!!

That's disappointing, but now I don't feel so bad about letting @ezwy talk me into ordering one on sale from X-caliber.

 

[Taudisio]

That's disappointing, but now I don't feel so bad about letting @ezwy talk me into ordering one on sale from X-caliber.

6x45?

 

[Hoosker Doo]

6x45?

Yes

 

[Taudisio]

Yes

I haven’t regretted mine for a second. I want a second one for the inevitable day I burn my throat out.

 

[Hoosker Doo]

I haven’t regretted mine for a second. I want a second one for the inevitable day I burn my throat out.

Awesome. Just out of curiosity, what twist did you go with? I went 1:7.7"