Well, because hardly anybody ever shoots 80 shot groups at 300 yards, it’s difficult to know. My wild guess is that 3MOA, 80 shot group even if you exclude five or 10 outliers would be pretty damn good.

Same thing with standard deviation: the habit of the entire gun community is to do repeated trials with tiny sample sizes and then hand pick the best ones to place in their mind or online as representative of their group size or standard deviation.

If people recorded mean radius of every single shot out of their gun as well as standard deviation, we would get a better (and BIGGER ) picture of reality.

Having said that a standard deviation of 36 seems pretty high

Also, did you realize you burned up 10% of your 22 Creedmoor barrel with this little test?

The reason your issue happens is that if that barrel in the turret isn’t oriented correctly it won’t engage the pin on the housing. Instead it acts as a stop and keeps the turret from rotating all the way.


I managed to find an old pic showing what I’m talking about. That u shaped notch needs to be turned so it can pick up the pin.
Come to think of it, when I get home I’ll see if I have the instructions I made years ago for just this issue.

open to any offers

open to any offer

open to any offers

Sandhog308 said:

Jay Leno looks like death warmed over. One foot in the grave , the other on a ‘ Naner peel type shit .

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in his defense , hes been full time caretaker for his wife who has dementia for the last year or two. im sure the days are pretty long having to dress and feed and adult.

personally, I think he looks ok for what he's going through

I got into long range shooting in the late 2000's. Bought a Rem700 SPS 308 in a Hoge stock with a Super Sniper fixed 10x scope. Got ahold of some once fired FGMM brass off a member on here snipershide, picked up some 175gr SMK pulls from a other Hide member and away I went with my load development. Spent a year working with this rifle and load as everything was new to me. The following summer, a local range about 45 min away was having a woodchuck shoot offering $ for top 3 shooters. There was hunter class and then everything else in the other class. 3 shots at 100yds, 300yds and 500yds.

My buddy and I had shot this range many many times and had tried and true dope cards. We decided to camp there Friday after work as the match was Saturday at noon so we could get some practice in. We were shooting at 8pm as the sun was going down, I couldn't understand why my gun was hitting 5 inches high over and over. So, I changed my dope card so I was ready for the match the next day. I get X ring at 100, X ring at 300yds...Then ... 500yd group was 5 inches low and costed me the win. Tightest group of the day, just 5 inches low. My first experience with mariage from sun up/sun down. Took me months to figure out what happened. Needless to say, this will never happen again!

I recently shot 100 or so rounds of 180 ELD – M through a nine twist barrel and they shot fine at 5500 feet density altitude. Run through the calculator with your environmentals and see what the stability is. Even if it is a marginal stability it won’t explain a 2 1/2 MOA group.

This is one of those Pennywise and pound foolish scenarios, and I know you didn’t have much of a choice with the barrel you say, but with several more boxes of ammo shot, you’re gonna be up to the price of a new replacement barrel.

80% of accuracy comes from barrel, bullet, shooter. You can eliminate bullet as the variable by trying a Ciara or a burger bullet hand loaded with a go to powder like H 1000 at near book Max. Or different factory ammo if you can find it.

Personally, I draw a line at $150 worth of ammo maybe 250, and then I would stop wasting money and switch out that barrel.

doubloon said:

Woot! A whole ~$2.50 off and still only ~$0.50 cheaper than the regular price at the gun mag warehouse.

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Half a buck is half a buck…but that wasn’t my point.

BillZ said:

Mike I have a V22 gen 3 and the V22s gen 3 bothe withe the same TT diamond trigger and have been struggling with adjusting the firing pin on the V22s, currently 4 turns out after initial indexing which is about 3/4 of a turn, 20 lb spring. Center x works great, Tennex will have a few fail to fire. Checked the head space with the Whidden head space gauges look like the HS is .042-.043. What is the correct procedure for adjusting the firing pin?

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Hey, Bill,
If you have a 64 tpi firing pin at 4.75 turns, you've moved the cocking piece just over .074", which seems excessive for optimal results unless your trigger is really jacked up. One of the reasons I need to do a video is due to the garbage info that came out of VGW.

Proper ignition is based on consistent energy management and how/where the energy is focused on the case rim and the trigger is a big part of this equation.

Are you having trouble with the bolt not closing smoothly?

MB

Yes.

LMT MRP with a 16" Bartlein barrel from Craddock Precision. This is my favorite AR platform rifle that I own. It did not shoot great with the factory barrel, but it is now the most accurate semi-automatic rifle I've ever shot.

I was shooting a smallbore prone match many years ago. I was dialed in and just hammering 50 yards, 50 meters, 100 yards and 200 yards. My next to last shot at 200 I looked through my scope, the mirage looks the same but I can now feel a slight breeze on my face which I hadn't felt all match. My brain said don't shoot but my finger said shoot. It was wide right out of the X ring but still a in the 10 ring. I tied for high score but lost the match on X count by one X.

pm sent

Great rifle, but good Lord that price tag!

I also don’t understand why they would completely neuter the rifle but cutting off the other nut. 50BMG was designed By JM Browning for a 45 inch barrel and the industry standard 29” gives up a lot of horsepower. 27 inches for a 50? Is it a close, quarters battle rifle? The AX50-Eunuch

Bump

Didn't matter the shooter was in the school book depository.

Prayers for all.............

P320 mags on sale at Brownells.

E.S of 30-40 is pretty good

E.S of 100 pretty bad.

It depends on what you are doing with the rifle if it matters.

A point blank zero coyote rifle. Not much diffrence.

A rifle set up for shooting 700+ yards, you are gonna want to be in the pretty good category or batter. SD will give you better idea of likley dispersion vs E.S that can be effected by one large outlier.