dpete

Yup. Mine too. Plus the subsonic BLK bullets designed specifically for hunting do scary things inside deer. Subsonic hunting is like bowhunting with a rifle, close in and quiet. You hear the shot, then a fraction of a second later hear the bullet hit the side of the deer. It sounds like someone slapping a pair of leather insulated mitts together.

Hurt? These things are varmint bullets and even at lower BLK speeds they basically explode after entry. Getting hit in the chest would result in everything in there turning to mush.

@BrianK I got to the range today to do some velocity checks with the 4 Blackouts that I have in the house. Bullets were 110gr Varmageddons and all were 5 shot groups. 16" barreled Ruger American Ranch bolt action averaged 2502 fps 10.5" pistol AR averaged 2270 fps 8" SBR AR averaged 2176 fps This 5" pistol AR averaged 1858 fps Bullets were randomly grabbed out of an ammo can and loaded into 1 30 rd pmag. It was interesting to watch the velocity drop as the barrels got shorter, which was completely expected.

Welcome from WI. Careful with Grendels! If left to their own devices they try to spawn themselves into more like them if you have any extra parts stashed away.

I found a 28 footer similar to that sitting in a field last spring. No furniture, worn out carpet, just side rails and a falling apart steering console and drivers seat. 40 hp Force outboard. I asked the owner about it and he said if I wanted it I could have it. Come take it away. The motor started right up on the first attempt. I sold the motor, stripped off the side rails, motor mount, and steering console, and now its a 28X8ft floating pier at our lake cottage. This year its getting a deck extension, rub rails to protect the boats tied to it, and new carpet. Its not a party barge but its sure big enough to be a party pier.

Ok another one in WI. This boat has a story that I still find hard to believe. It starts in 1986 when I bought a model very similar to this one from the same company. After marrying my 1st ex and moving to KY we sold that boat and got a newer but different model in about 1988. At that time I was actually a rep for the company and when it came time to sell the boat, the company president Tony Portincaso had a buyer in Illinois where he was based. Boat is sold, life happens, two kids are born, divorced, remarried, etc. etc. Flash forward to 2018. I'm driving through Eagle River WI which is about 25 miles from where I am and go past one of those spots where people park cars and stuff to sell and I see a grey figerglass v hull for sale. The hull is rather unique and I look closer and a light bulb goes off in my head. Thats a Tony Boat! I wheel around to take a closer look and sure enough its the same model that I had 30 years before. 17' long, same open floor plan, even the same trailer from the company that made the one I had. I call the number on the sign and talk to the guy who owns it. He wants to move the boat BAD. They're selling the cottage, not fishing like they used to, and staying closer to home in Illinois. We talk for a while and it turns toward hunting and shooting. I ask him if he would be interested in a trade and he says possibly. We end up making a deal, I traded him a 16" barreled 300 BLK AR for the boat, motor, and trailer. The boat needed its interior replaced and the trailer needed new wiring. Here is where the twilight zone kicked in. This was the same model as I had in 1988, same layout, same everything. The trailer was from the same company that mine came from. No big deal, Tony probably started using those trailers for all his boats. As I begin to tear out the old interior and remove things I didn't want I begin to notice odd details and start having deja vu. Two screw eyes mounted into the front of the splashwell, and sets of screw holes under a non-skid pad I removed got me thinking. I pulled out the paperwork the guy gave me with the boat and in with it was the invoice from Tony Portincaso Boat Company. The guy bought it from Tony directly in Illinois. I called him back and asked him if he had installed the screw eyes in the splashwell or if they were already there. He said they were already there and asked why I was asking. I told him I knew who had put them there. ME! The boat we turned over to Tony to sell in 1988 had somehow returned home and was once again sitting in my driveway in 2018. The trailer under it was the exact same one we had. I rebuilt the interior to match the original model I had in '86 and added a few more modern touches but the hull is still as solid and stable as it ever was. I think I'll have this one until I die!

I'll second the 5 round ASC mags. https://gunmagwarehouse.com/asc-ar-10-308-7-62x51-5-round-stainless-steel-magazine.html Out of stock right now.

UPDATE I went to the range again today but this time for an accuracy test. This build was never intended as a long range precision piece but I had hopes of decent accuracy. It has achieved that. The Fastfire III has a 3 moa dot which pretty much covers a 2" square on the target with my eyes. With about 75 rounds through it so far, it is minute of baseball at 50 yards with bullets loaded for my 8" BLK sbr. So far it is living up to the hopes I had when thinking about building it, a rifle round coming out of a package that is about the same size as an H&K MP5.

First outing is a success! The adjustable gas block arrived this morning and I had it installed shortly after. @98Z5V It ran like a top with the gas block wide open. First shot with 1 round in the mag had bolt hold open on empty. Next mag with 3 rounds all fired and ejected perfectly. Then I commenced shutting down the gas. First two clicks, had BHO. 4 more still had BHO. 4 more still had BHO. I kept shutting down the gas until finally I had no bolt movement, I assume gas was shut off completely. Two clicks open and BHO again. Ejection was right at 4 o'clock with empty cases landing about 3-4 feet out. I'm guessing that I have it two clicks above fully shut off and have perfect function. This is with a 3.0 oz carbine buffer and standard spring. Shooting subs with the gas set for supers had no BHO, and I didn't play with it to determine how far it needed to go to get there. The recoil is a smooth push, not a sharp punch like I expected, although I did use my original Sig brace for testing purposes. It was a cloudy day and the birdcage flash hider did its job, there was no noticeable muzzle flash when observed from 20 ft to the side. Shooting it you don't really realize how close the muzzle is to your face compared to a 16" carbine. Next up is some accuracy tests at 25 and 50 yards.

Parts have arrived and she is put together...mostly. I'm still waiting on the adjustable gas block that USPS says is supposed to be here tomorrow. I'm thinking more likely Saturday or Monday considering where tracking says it is right now. If I get anxious over the weekend I may put the standard gas block on it just to see how it runs unrestricted. 23" of pint size blaster 300 BLK

Greasing the spring ends the twang. Just sayin'

Have you shot this rifle in its original gas and recoil system form? If not, do that first to see if it runs. Thinking this or that might be wrong is only waisting brain power until you actually shoot the thing. There is an adage that runs around here that applies to these large frame guns, "DON'T COMPLICATE $HIT WITH COMPLICATED $HIT". Go out and shoot it as it is before you start throwing money at a problem you might not have. If you have a problem come back here with it and folks will get it sorted out for you provided the advice given is listened to.

^^^ That right there will fix you up.

@98Z5V I've got an adjustable block incoming hopefully this week. Just in time for the lower and the rest of the parts to get here. I'de be tempted to put the block and gas tube I have on the upper and mount it on my SBR lower just to give it a test but at 17* outside I'm going to pass on that idea.

All the upper parts showed up yesterday and I'll be putting it together today as soon as I return from getting the BCG from my local gun pusher. With the birdcage flash hider, and KAK pistol tube this thing is going to be 23" long. @98Z5V The gas port is only 3" from the front flat face (front of pic rail) of the upper, and measures .109" in a .75" journal. With the back of the bullet travelling under two inches from inside the case to going past the gas port I'm thinking an adjustable gas block wouldn't be the worst idea. Your thoughts? There is going to be a lot of gas going down the gas tube hitting the BCG unless its tuned down. Mocked up for visualizing. Nothing tightened down.

An option to the birdcage or can is a flashcan to direct all the blast forward. The can I have is a Form 1 that I built with quieting a 308 AR in mind. Its 10+ inches long. It works great on my 8" barrel BLK with subs but it goes against the short concept adding that much length to this little thing. I've looked at the Law folders. Very nice and very pricey. One review I saw stated that it adds about 10.5 oz to the overall weight. Not something I'de like to do. It would be slick to have the folding option but for practical purposes it might save 30 seconds over grabbing the upper and lower from the case and popping the pivot and takedown pins in. I have a laptop case that has been laying around for several years that I'm going to try to use. Yes I've got a chrono and several flavors of 300BLK reloads to put to the test.

It seems to me that when I discovered the differences in the tubes you were busy out at the SDTF up to who knows what kind of shooting and other shenanigans. A bit busy in other words.

@98Z5V Its going to be a bit unique because of using the KAK Sig brace buffer tube. I held it up to one of my other rifles with a standard 7" ID tube and the KAK is 2" longer! I thought WTF, never gave it a second thought when it was installed before and it worked just fine. Tonight I pulled out a tape measure and found out what is up. The tube is 9" end to end exterior length, and 7" interior length. The thing has a 2" long aluminum plug in the back of it. WTF solved. Being as long armed as I am I might just add a bit to it before sliding the foam pad on. Lord knows I've got enough solid aluminum at the back for a screw to grab on to and hold my homegrown extension in place.

Thanks! I also have a SBR lower I can slap this little bugger on for those super short rifle moments. I might have to break down and camo another AR so this one matches the others I have.

Definitely not a human baby, I'm way to old for that nonsense. A micro 300 BLK pistol build. 5" barrel w/micro gas, 4" handguard, KAK round pistol buffer tube that will get either a foam pad to start, or my original Sig brace later. Sights will be the Burris Fastfire III I already have with Magpul flip ups front and rear. Everything in between will be standard AR15 fare. All the parts are inbound right now. The big question mark right now is muzzle device. A standard birdcage flash hider is what I'm starting with, but I might get a flash hider I can thread my suppressor on to. This thing should come in somewhere around 22" total length and hopefully will turn into a fun little blaster and truck gun. I'll see how it does with the 110gr Varmageddon loads I have for my other BLK or I can always make up some special loads for it. An almost life size picture of what the upper will look like.

Sounds good! As long as the turbo encabulator doesn't overcharge the tubular gas re-energizer enough to blow up and become a gonadal emasculator. That would be BAD, VERY BAD!

Is that like splicing in a flux capacitor?

Yeah. We don't help people spend time but we sure can help spend money. Especially when its someone else's. Welcome from WI.

Some know a little, just enough to give wrong info. A lot of folks at M4C are still "if it ain't Colt or BCM its crap" kind of guys. I generally skip the AR15 threads and check the Beyond 5.56/.223 section a few times a week. Usually not much new there but once in a while there is a post looking for help on a large frame so I send them over here.

That might have come from me. I've sent a number of people over there to here. Welcome!