.22 br

Jory45acp

New Hide Member
Mar 10, 2018
38
14
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#3
What do you consider heavy? I'd have to dig mine out of the back of the safe to look at twist rate on barrel. Been awhile since it's seen range time.
 
Feb 14, 2017
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#4
Worked up 88 eld's with varget and reloder 16 in a 21" Shilen 1-7".

Varget didn't seem to wanna shoot good anywhwere near like 16 but velocity was a little better.

2,950 with a case load of 16.

Need to chrony and check es/sd
 

steve123

Lt. Colonel
Mar 16, 2008
7,552
375
83
Flagstaff, AZ
#5
Thanks for the report!

I made up a 22BR case this weekend with a 88 in it just to see it. As well as a 22PPC.

As much as I'd like doing a factory case/Norma 22PPC, there are other hurdles to deal with, mostly having to buy another bolt face for my Mausingfield and the modifying of mag lips, so I guess I'll put that project behind me until I have my AR rebarreled.

Here I go again doing another wildcat - 22BR.

Would you give us specifics on your load and OACL please?
 
Feb 14, 2017
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#6
88's touch lands @ 1.767" bto

32 grains of 16 is going 2,930 or so and is barely compressed if at all.

30 gr Varget went 2,996 with an es/sd @ 24/7 but groups were not great.

I will anneal and get neck tension to chill out and post more later this week.
 

steve123

Lt. Colonel
Mar 16, 2008
7,552
375
83
Flagstaff, AZ
#7
DB, was that you posting on AS with another alias about a Shilen 22BR?

Lapua brass? What's the measurement on a loaded round on the neck and how much neck expansion do you have going on, as well as at the shoulder and .200 line? Dies - factory or custom?

I ordered an action wrench today and a Bighorn barrel nut to start. Prefit 22BR as soon as I get some things figured out.
 
Feb 14, 2017
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#8
Lapua. Measured necks go .251" with seated bullet.

Shilen opened neck up to .253"

I have no idea what a .200 line is.

Diameter at shoulder is growing .004" on forming.
 
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steve123

Lt. Colonel
Mar 16, 2008
7,552
375
83
Flagstaff, AZ
#9
The 200 line is where the benchrest guys measure the web of the case. Virgin as compared to fired and resized compered to fired.

I'm more so looking at how much expansion at the 200 line on sized vs fired. No more than 1.5 thou and no less than .0008"

Same with the shoulder, fired vs sized, 1 thou to 1.5.

Less work on the brass if tolerances are smaller but not so small to cause problems - bolt click. Brass lasts longer as well.

The reason I'm asking is I'm trying to decide whether to order my own reamer or stay with a more common one.

Which dies are you using?
 
Feb 14, 2017
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#10
If there's any growth at the base, my calipers aint showing it.

I'm using a Redding fl Type S. Doesn't seem to be doing much at the base.

Fired brass sizes down .0015 thou at the shoulder.

You seem rather in tune with what you want a reamer to do and where, so I'd suggest ordering one exactly how you want it.

And then let me borrow it a couple times. :)
 

Codiekfx400

Sergeant of the Hide
Jan 29, 2018
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103
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#12
I would like to know what the advantages are of a 22br vs a 223wylde. I would assume 150 fps and better standard deviation but that is a guess as I have never fired a 22 br but I want to. The 223at less than 400 yards works very well but I am getting vertical stringing when taking it out to 600 yards and beyond.
 
Feb 14, 2017
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#14
I would like to know what the advantages are of a 22br vs a 223wylde. I would assume 150 fps and better standard deviation but that is a guess as I have never fired a 22 br but I want to. The 223at less than 400 yards works very well but I am getting vertical stringing when taking it out to 600 yards and beyond.
A lot more than 150 fps can be had. I wanna say Steve123 was pushing 88's in a .223AI @ 2,800 in a loooong bbl.

Varget was pushing 3,000 fps in my 21".

Brass is killer, oal is short enough to do whatever you want, aics mags work great and single feeding on top of empty mags kicks a .223's ass!

Love the .223AI and have another coming, but damnit if I aint having second thoughts.

Still more to shake out and will keep you guys in the loop.
 
Likes: 260284

steve123

Lt. Colonel
Mar 16, 2008
7,552
375
83
Flagstaff, AZ
#15
I would like to know what the advantages are of a 22br vs a 223wylde. I would assume 150 fps and better standard deviation but that is a guess as I have never fired a 22 br but I want to. The 223at less than 400 yards works very well but I am getting vertical stringing when taking it out to 600 yards and beyond.
First off 22BR is a wildcat cartridge so necking down is necessary.

Approx 5 - 6 grains more powder capacity.

Plenty of room to seat the heaviest bullets above the neck/shoulder junction and to chase the lands during wear.

The 6mmBR case has the .059 flash hole. Lapua brass is high quality and very tough stuff with a long neck. Many records were set with the cartridge.

In my 223AI I've got a long barrel and very long throating, 2.614" OACL, but it's a light load at the low node.

The reasons I want to do a 22BR is to have a light recoiling repeater (more so - low rifle upset) with good barrel life, good brass life, and the 88's using 30gr of powder are cheap to shoot compared to the 43.1 grains of 4831sc and 105 hybrids I'm currently running.

I will experiment with the coolest running ball powders for play on steel and save the temp stable powder of choice for matches. High node for the temp stable powder and low node for the ball powder.

What got me going in this direction is how well my 223AI does in the wind, it's one click more out to 600Y than my 6x47L, 2 clicks at 1000Y. My 223 with 15" barrel and 70 grainer pales in comparison.

With 6BR the windage needed will be the same as my 6x47L if I use the 95 SMK! Only 1 click more with the 88's at 1000Y.

Finally, I hate walking around between stages all day with a 19lb rifle. This next barrel will be a medium contour and 4" shorter, 2-3 lbs lighter, and the rifle will balance much better.

Man, I'm long winded today, lol.

Your vertical stringing most likely can be tuned out.
 
Likes: Codiekfx400

260284

Sergeant
Feb 15, 2017
453
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#16
I know a guy getting 3050 fps with the 88 ELDM and Varget. I believe he is running a 7 twist 24" barrel suppressed. SDs less than 5 and accuracy under .2, just running the virgin brass thru a Redding fl sizer. I am considering this for a comp rifle. Very little recoil and the same bc as a 105 hybrid. I am going to give H4895 a try.
 
Likes: steve123
Feb 14, 2017
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#17
Went and played in the wind today.

88's in a .22br are a damn fun ride.

1.5" vertical at 600 yards with 32 grains of Reloder 16 and a 2,940 launch.

18-20mph gusts.

Dope tracks right with my 6 Dasher out to 1,300 yards and runs $13 cheaper per 100.

 

260284

Sergeant
Feb 15, 2017
453
46
28
#19
88's touch lands @ 1.767" bto

32 grains of 16 is going 2,930 or so and is barely compressed if at all.

30 gr Varget went 2,996 with an es/sd @ 24/7 but groups were not great.

I will anneal and get neck tension to chill out and post more later this week.
Watch out for the carbon ring with the 16. It bit me in my 6.5 Creedmoor. I pay a lot more attention to the throat now. A little CLR makes short work of it.
 
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