ULUL Stainless/Portless 6x45 16" AR15 Barrel Group Buy NOW CLOSED

[Taudisio]

I already had them loaded from when I was trying different things to get the first barrel to shoot. I windowed a duramag and grooved the lower to get to 2.400” max. I fully understand that different jumps won’t make massive differences, that is what has me a little worried about this second barrel. I have never had a rifle shoot 4” groups, not even during break in. If I can not get below 1.5moa, this thing is useless to me. The Shaw 223 barrel was easily 1moa with the 77 tmk, out of the box.

I understand now. Yea, if a barrel doesn’t shoot, it doesn’t shoot. 4” groups though….. have you checked the assembly and re-checked it?

 

[Jesseb]

With the last barrel, yes. Swapped to a known good scope and mount straight off my 6 arc (Trijicon accupoint) that shoots consistently 1moa. Same assembly with the Shaw 223 barrel shoots consistently 1moa. I will try a few more loads to see if I can get this thing to shoot then swap the Shaw back in there and see if it repeats.

 

[Thegman]

The Shaw 223 barrel was easily 1moa with the 77 tmk, out of the box.

That at least rules out your ability to shoot the rifle. Thanks for laying some groundwork. Like @Taudisio said, if you find a load that works well in your barrel there's a good chance it will work in others.

OTOH, the last batch seemed to be all over the place. Mine didn't shoot nearly as bad as others, but the chamber was -way- oversized.

 

[KyleR1985]

. New barrel was hitting about 18” higher than the original.

I’ve had 4 different barrels on the same upper/optic, 3 different calibers. All had point of impact within an inch or so of the first.

Is it normal to spin on a new AR barrel to an existing upper/optic and have the POI shift that much?

Still haven’t shot my barrel and it may be shit. But That’s the first place I’m looking.

 

[Thegman]

I’ve had 4 different barrels on the same upper/optic, 3 different calibers. All had point of impact within an inch or so of the first.

Is it normal to spin on a new AR barrel to an existing upper/optic and have the POI shift that much?

Still haven’t shot my barrel and it may be shit. But That’s the first place I’m looking.

18" seems to be a lot, definitely on the high end, but 4 all within an inch is probably just as unusual.

 

[KyleR1985]

18" seems to be a lot, definitely on the high end, but 4 all within an inch is probably just as unusual.

Inch or two* sorry typed fast.

None over 2” off in any direction for sure.

 

[passinggas33]

Just reporting back on my first 20ish rounds out of the new barrel. I was shooting the Druid Hill Armory 85gr HP ammo that you can order off their website. Decent ammo with decent ES/SD.

Overall tough shooting conditions tonight where I live especially with it being on an ULUL. Overall though with all of this it was right at 2MOA. Which FOR ME, with that ultralight gun and the SWFA 2.5-10 on it, is about as good as I can shoot. So, long story short, for me, it is an improvement over the original better. Hoping to get more time behind it on a better night that tonight.

 

[The Guide]

Just reporting back on my first 20ish rounds out of the new barrel. I was shooting the Druid Hill Armory 85gr HP ammo that you can order off their website. Decent ammo with decent ES/SD.

Overall tough shooting conditions tonight where I live especially with it being on an ULUL. Overall though with all of this it was right at 2MOA. Which FOR ME, with that ultralight gun and the SWFA 2.5-10 on it, is about as good as I can shoot. So, long story short, for me, it is an improvement over the original better. Hoping to get more time behind it on a better night that tonight.

I Have the 85 Sierra Gameking HPBT and the 75 VMAX coming from them to try. Hopefully they will be accurate enough for this project.

Jay

 

[Jesseb]

Anyone do anymore testing? I noticed my new barrel, like the first one was copper fouling pretty bad so I have some Iosso on the way to try to clean up the bore. Kind of at the point where I am only interested in the 95 tmk for this thing so probably stick there for next tests later this week.

 

[ezwy]

Started today at 24 grains of leverRevolution behind a 95 tmk. Accuracy started good at 2363fps.


24.5, 25, and 25.5 gr opened up a little. Tightened up again for 26grains at 2564 fps 20something SD

These are loaded around 2.375” COAL (someone borrowed my caliper)
Going to work up some loads between 25.8 and 26.4 and try to dial it in. Looking promising. Groups are somewhat limited by me. Light gun in some wind is noticeable.

 

[Jesseb]

Ok, that’s a bit more promising. I tried lever around the 26 mark with 95 NBT’s with the original barrel with poor results but never tried it with the tmk. 2500 or more with the 95 tmk should work. Under 2500 and I might as well stick with 223 and the 77 tmk. TAC, XBR and H335 all gave me best velocity with the 95 tmk, but accuracy was not there….with the original barrel. Looks like I may need to start with lever loaded long and then maybe revisit some of those faster powders. Thanks for your insight, looks pretty good so far!

 

[Jesseb]

Also, what scope, what has been your barrel break in/cleaning procedure, and time between shots? I do notice the barrel heats up pretty quickly. In my mind I am only concerned with accuracy when fired relatively quickly since this is a hunting barrel. Cold bore shot accuracy and maybe shots 2 and 3 fired relatively quickly are about all that matters to me.