.22 Creedmoor Shooters

[ACF]

I have had a 22/250AI and a 22CM and for me, I'd rather just neck down and shoot. It seemed it required two firings to fully blow out the 22/250 case to the AI form.

Anyway, I took a fired unresized Win. case in 22/250AI and it held 50.4 gr. of water. I also took a 22CM case which was Hornadys' case fired and unresized and it held 52.4 gr. of water.

Different brands of cases may hold different amounts of water, but are probably similar.

Chris

 

[JustinP]

I run the Lapua brass and neck it down in 4 or 5 steps to reduce the stress on the brass and have yet to see a doughnut, as opposed to a buddy who does the 6cm in 1 step and is getting doughnuts after about 5 firings in Hornady brass. I tried necking down 6.5 in 2 steps and 6 in 1 step and was never really happy with how it turned out. I have been running this cartridge for 3 yrs and it is by far my favorite round for coyotes, pigs and white tails. In my group, 4 out of 6 of us shoot a 22cm, the 5th guy runs a 22x47L and #6 is a weird cat with a 22 dasher. Three of the 22cm guys are running the 69tmk with 39.0 of varget at 3595 froma 24" 8tw and 3510 from a 22" 8tw and 3500 from a 20" 8tw. The Dasher guy runs the 88eldm and is racking up some nice kills. I run whidden f/l bushing dies, the 80.5 berger, 42.2gn of H4350 & cci450's from Lapua brass for 3393fps from a 22"8tw with an sd of 6. It knocks the stuffing out of coyotes and isn't horrible on fur, but the insides are soup.

We have found that the Alpha brass showed pressure spikes well before the Lapua brass and just wouldn't give the velocity normally found with added pressure. Lapua has been, hands down, the best brass option we have found. There are guys running the 90+ bullets from 7.5tw and showing excellent results, but mine is a critter gitter and the 80.5 fullbores are bada&& on everything that I have shot with them. The Hornady 88gn ELDM's are killing very well also, from a local state coyote hunter. The 80.5 are easy to tune and have no qualms about a jump. Once you get it up and running, you will grab it more often than not for a good time.

Huck75 - are you sizing down the Lap 6.5CM or 6CM brass? Would you mind giving us a rundown on your 4-5 step process to bring it down to 22CM? I’m into a 22CM now and my donor brass choices are currently Lap 6.5CM or Starline 6CM, both small primer. The 6mm stuff I was going to skim turn and then bring down in 2 steps. I’d prefer to use the Lap brass but I don’t know how many steps down to take, and whether I can get away with neck turning once only.

 

[Huckleberry75]

Huck75 - are you sizing down the Lap 6.5CM or 6CM brass? Would you mind giving us a rundown on your 4-5 step process to bring it down to 22CM? I’m into a 22CM now and my donor brass choices are currently Lap 6.5CM or Starline 6CM, both small primer. The 6mm stuff I was going to skim turn and then bring down in 2 steps. I’d prefer to use the Lap brass but I don’t know how many steps down to take, and whether I can get away with neck turning once only.

Running Lapua brass. Also have Hornady. I neck down with the following : .287, .273, .262, .253, expand necks with my Sinclair turning kit's expander mandrel to clean up the mouth flair, then final size down with .252 for Lapua brass or .251 for Hornady brass. OCD, yes, I know. I have not turned any necks and am running a .2575 neck reamer.

 

[JustinP]

Thanks mate - much appreciated. That’s a lot of sizing steps...you must have the patience of a saint. Can I ask at what point and how do you use the expander mandrel to clean up the mouth flare? Sounds like at about .253”? Do you find it gets rid of any flare/belling completely?

 

[Huckleberry75]

I neck down with the following :
.287
.273,
.262
.253
Then expand necks with my Sinclair turning kit's expander mandrel to clean up the mouth flair,
then final size down with .252 for Lapua brass or .251 for Hornady brass. Once it's done this way, there is no flare or bell to the case mouth.

Once I have the brass formed, I run a F/L bushing sizer with the appropriate bushing and NO expander ball for normal reloading.

 

[Matt k]

Anyone try out Peterson 22 creedmoor brass yet?

 

[284winner]

Anyone try out Peterson 22 creedmoor brass yet?

Haven't seen it available. Only announced in April 2019 that they were going to produce it. Doubt we'll see it before mid summer/fall.

 

[Nightraider]

H4831SC with 75s, can't seem to stuff enough in the case. Gave me a little better than .5moa @ 400y.

 

[B23]

I think you'll find RL26 is the winner, with regard to velocity, in the 22-250AI, 22Creed, 22-6mm, 220 Swift, 22-243 and all its variants, when shooting the heavier bullets. That's the good news, the bad news is it has become such a "go to" powder for soooooooooo many different things, it's really hard to find and if you've already got a few pounds of this stuff, you better keep it hidden. lol

 

[Matt k]

Haven't seen it available. Only announced in April 2019 that they were going to produce it. Doubt we'll see it before mid summer/fall.

Horizon firearms shows them in stock on their website.