All right all right all right , got a lil time today so LOAD TESTING!
So since this thing runs faster out the gap then 95% of my lil arsenal I'm just gonna go with the book and work my way up. With AR's unusual start middle or upper lower end and work my way up due to the gas system and usually shorter barrels taking a lot of juice ..but .. again then thing is running like 3600 at the staring load so


So gonna start out with gonna run the 40gr vmax one , become eveyone and there mom says 35-45 GR is where it's at for .22-250....aannnd two I have three boxes for some reason lol
And next for a 55gr SP for anyone who wanted to see that comparison, for ... science I guess lol

Running accurate 2460 and honestly... I usually really hate anything other than a stick powder ...but something about this I kinda like .. stuff meeters like dang water .

Not a lot of case fill though .... Wild S-D are coming I can tell already lol

And a close up of the powder itself

And like I said in one of my earlier posts worked out a customer COAl/ C TO...found where the bullet was roughly hitting the rifling , backed it up 0.003" and then some more to facilitate an ease of un chambering. So now we're like 0.006 off the lands .more jump then I like but prefer a lil jump vs possibly getting a chamber full of powder because the bullet was too close for caught in the lands and popped out ..been there done that. And loving this lee micrometer

And since it's going in a AR10 with. I much bullet actually int he neck....check it not much at all

I gave them just a light kiss of a crimp..just to keep everything in place.. tried to measure and got like .002-.003 worth of crimp
.... Swear those lil red tips seated out kinda long...SEXY LOL


And the set up...same as usual, bipod rear bag bench
And yes I'm running the Magento. Yes I doing load development with it . I do more of the Cortina method where my velocity takes a bit bigger if a role then group size . Also testing for factory shows this gun isn't super finicky with it so there that. Anyhow I need to my numbers and if something looks really good velocity wise but not group I'll pop it off and revisit it


Ok ok running straight from the mag

Was actually super curious if my reload would finally give me some feeding issues so racked the first one dropped the mag carefully took the round jour and inspected it...aannnd nothing I could see

And shooting , shots where made in groups of five @100yd...no real rhythm or anything just squeezed when I felt good about the shot. After five rounds I'd left the bolt open and go load the next five got a consistent 3:30-4:30 ejection pattern and the recoil was STUPID light ! I mean make a no sense lol.
Can see the brass at the lower right here


Anyway groups



Now I don't get a velocity on the very first group because I was still getting the Chrono tuned in but with our 20" barrel we where getting roughly 250-300fps less then what the book said Soo I'd say our start load was probably 3300fps... Which I gotta say is kinda crazy that , THAT is counted as slow lol. But yeah there test rifle was a 26" bolt gun soooo


Also I did switch to smaller targets on the second set. Went for 2" orange stickers to 1" . Thought it might help a lil


O and finally made a lil stand instead of messing with cardboard boxes lol



Also on my last two groups ..d
Idk what happened with the first shots . I squeezed them off and they both just felt wrong. Like I was watching bullet impacts on all the others but those two ....idk
Anyhow I tossed them as flyers but here's what the groups look like with them....who with us information what you may lol

Again man I have no clue if I got a lemon or if I'm just doing something no one else is so ...idk I think....it's the mag possibly

Ok last deal for a while . Decided that thought there cool.... Super fast lil bitty varmint bullets don't really do much for me . I don't really do anything like shooting ground squirrels or prairie dogs soooo something a lil less.... explode_y would be better lol. And with he 1:14 twist I'm about topped out with 55gr bullets... THOUGH apparently people have luck with 60's .
Anyhow my two options are

And decided to go with he slick slider one ... because....idk I like how non cannulated bullets look


Also going with the other powder I got for this project


Case fill is till below the shoulder a bit.. and staring out with a hight charge for starting just because where loosing an average of 300fps from book



And custom cbto/COAL



And same deal as before


Aanndd


I'll do ballistic x in a bit but currently wrangling my wife and someone else in New Orleans so just wait lol

enjoy the big easy , get some seafood and listen to some music.

I bet your brother would be fun to bring there with his trombone and play pickup with some street musicians

It would be interesting to run your bore scope down that bore again and see what that gas port looks like now.

Ok got a bit while the woman folk do there makeup they wanna go bar hop on Bourbon Street.... Y'all pray for me I'm be wrangling a complete light weight and a Canadian who loves to drink

Anyhow go to do the ballistic X and



But... Also did a mag test. Most of the people with problems ( WHO ACTUALLY POSTED PICTURES) seemed to be using these straight SR25 style mags. Picked one of these up at bass pro



Thought this could be the problem because it was kinda a common issue with 6.5 Grendel and 7.62 x39 till the started making the slightly curved mags.
And as you see my PMAG is kind curved


And a side by side of the two


Now not the best test because I can't fully load the mag up with 10rd... because I only give five rounds left soooo.... But it's something


O also the way the bullets sit in the mag



As far as the test just loaded up my staring load because I had everything set up still and raked the bolt









And it takes all five rounds no issues...


....so ...idk what to tell ya I legit been trying to make this thing not work , not feed annnnd it just keep chugging along so

Ya know I meant to do that last night but I was so dang exhausted I forgot

So anyone. Got any bullet suggestions?

Any thing in particular you want to use it for? I tend to use a Swift more than the 250 but generally speaking 50-55 grains are my choice. I save 40 grainers for things like the .222. You will find most varmint style bullets in the 50-55 grain range will completely disintegrate themselves within most ranges when run at the top of the velocity range for your gun. I dont have any experience using things like the 55 grain soft points that you loaded in that round but I do use it for deer crop damage out of the 223. If I'm wanting something that does come apart very rapidly Vmax's have generally fit the bill. I tend to have the best overall accuracy out of Sierra's but that could just be coincidence and its minor in the grand scheme. If I want something a little less volatile my absolute favorites are Nosler BT's. No experience with anything heavier. If I want that I swap guns

Hi........My name is Wolfie..and Im an addict. Love it Wolfie. You go in depth. Very captivating indeed.

It seems to like a little speed, I'd push it a little harder, check the bore again, and maybe cut back on the caffein the day of the next test.
While you are doing accuracy tests, because it is a semi auto, put an extra round in the mag, on the bottom, after doing a measurement for OAL. then fire your five shot group, then measure OAL on the sixth round to compare OAL from first measurement to determine if you have enough crimp on the bullet in your recipe. You might also consider loading single rounds, in the same mag while testing, to see if your rate of fire is causing the shape of your groups to change from heat/ barrel movement.
As for bullets, might check on some of the "Factory Blemish" bullets, suppliers like Midway USA sell. If you find one you like, then wait for one of there 30-50% sales and buy a couple thousand. Most blemishes are cosmetic, and you can weight sort them for consistency. Like stated above, at those velocities, they are like bombs on impact anyway.
Looks like you got a good buy, can't buy much in the way of a rifle barrel for that money anymore.

wolfie, don't crimp, try 38.0 gr of H380 behind those 55's.

Glad to hear really try to give these deal a fair test. Always annoyed me reading peoples comments about stuff and its obvious they never really tired. Do these posts hoping it might help someone down the road....or at least be better reading then all the magazines and random arm chair "experts"

Like I said earlier on ...I'm not even sure what the heck I'll use this thing for :Di don't do the usual 22-250 deal like blowing up prairie dogs or wood chucks ....not that I have either anyway.and most of the bullets in the 30-55gr range are those "explosive types " and not the most useful for anything bigger than fox from what all the experts said so
So guess a lighter bullet a guy could use for up to deer.... Though I know A LOT of folks who run .22 center fires for deer and pigs and just use whatever they can get.... Though there neck shooting 90% of the time ...


Idk like I said I WISH this was a 1:7 twist because be running. 63-90's in this sucker but o well

Yeahhhhh I've never been the best at shooting paper lol. No matter what I do unless I just in a really chill mood ..... I'm just not the best a shooting paper..steel , bottles ,dirt clods , line game . everything else different story.... That lil dot in the paper yeahhh...

Anyhow you sure about the speed deal ? Was thinking I seemed to like the slower loads ...but that just the way I'm looking at it might be missing something

And glad you mentioned that ! I should have bought 100 pieces of brass to do that seating test to see what recoil would do , but only did 50.... But I need to order more anyway so we can try when I get more in

As far as the single round.... I've done it before but I have mixed feelings about that honestly because even though I'm not thinking I'm going to need to be burning though mags or something... I really feel I should be able to get a load that can keep a good five round group without much fuss you know . I don't shoot super fast with these groups, but no super slow either.

And I still haven't gotten into blemished bullets or components yet , I really need to buy the possibilities with them drive me nuts lol

60 gr nosler partitions will shoot in a 14 twist, as will the 64 gr nosler bonded.