Ultralight Ultralight Rifles

[Sundodger]

Trying to sort out my extraction issue on my solo 300 in 300 black out.

Scoped the chamber, saw a few rough spots, so decided to remove the barrel and polish it up with some bronze wire brush.

Scoped it after the polish, not perfect, but better.

Took it too the range and extraction was better, but not great. First few shots it took more effort than I wanted to eject a case, but technically worked. Once it started warming up it got worse. Only needed a mallet to tap it out of battery once which is a huge improvement, but still pretty unacceptable. Coupled times I pulled hard enough to get it out of battery that the extractor let go of the case rim before the case could eject, leaving the empty case on top of my mag.

Letting the gun cool for about 15 min, it was back to extracting like it did when I first got to the range (not great, but good enough).

What do you guys think? Anything else to try before I send this thing back to solo 300? Not sure a second or third polishing is going to completely fix this.

Before polishing:

After polishing:

 

[Trackselk]

Trying to sort out my extraction issue on my solo 300 in 300 black out.

Scoped the chamber, saw a few rough spots, so decided to remove the barrel and polish it up with some bronze wire brush.

Scoped it after the polish, not perfect, but better.

Took it too the range and extraction was better, but not great. First few shots it took more effort than I wanted to eject a case, but technically worked. Once it started warming up it got worse. Only needed a mallet to tap it out of battery once which is a huge improvement, but still pretty unacceptable. Coupled times I pulled hard enough to get it out of battery that the extractor let go of the case rim before the case could eject, leaving the empty case on top of my mag.

Letting the gun cool for about 15 min, it was back to extracting like it did when I first got to the range (not great, but good enough).

What do you guys think? Anything else to try before I send this thing back to solo 300? Not sure a second or third polishing is going to completely fix this.

Before polishing:

After polishing:

I'd just send it back to get fixed, unless it's your only rifle for a hunt or something. Please let us know how this works out.

 

[Thegman]

I'd just send it back to get fixed, unless it's your only rifle for a hunt or something. Please let us know how this works out.

That sounds like good advice.

 

[ProRoad]

This thread is amazing, great info and some beautiful builds for sure! So, in my envy, I have just started going down the rabbit hole with my first AR build which has turned into 2 builds.

Build one is a used S&W M&P Sport 2, 16" chambered in .223. I plan to remove the A frame sight and gradually start lightening, probably not to the extent of build two. (maybe not worth it at all)

Build two is new BCA 18" Bolt action upper, chambered in 6mm ARC. (I plan to suppress) I had planned to use a Shield Arms folding lower on this bolt gun but Shield says I should still use the buffer as its proprietary and required in the folding lower. I know they are "light" but in reading this thread, I have not seen one used. I also have an Anderson lower which is an option.

Any thoughts on these builds and gradual first steps toward end case, which would be, light and accurate backcountry, coyote and small game, would be great. (I have a 7.08 and 30.06 for larger game)

Thanks in advance.
Brian