22 ARC + 75ELDM?

coldboremiracle

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For those that might be loading the 22 ARC, what powder is giving the best velocities with the 75 class bullets. I'm seeing data showing 3000+ with some of the newer powders like CFE223 and Leverevolution. But I've got a ton of some other older powders and would prefer to use what I have if I can.
 
I have a 22 Arc bolt gun with a 22" barrel.
I would like to load for max velocity w/ Hornady 70 gr CX copper.
I see Hornady has load data for both gas guns and for bolt rifles.
The max pressure in their load published data almost looks like a C.Y.A. Play to prevent damage to the gas guns.
Why is the pressure so low in comparison to other cartridges?
And might anyone have a favorite worked load for these CX bullets?
 
I just started shooting factory Hornady Black 75 grain Eldm in a new Howa 22" barreled rifle.
So far, with only 14 rounds through it on the first outing, it's liking the 75 Eldm and shot 1/2 moa out to 300 yards in 3 shot group and averaging 2975 fps.
Not bad for a pencil barrel with Scythe suppressor hanging off the end.

Didn't load anything yet as I'll be firing factory ammo for brass.

I did pick up a box of 62 ELD-vt to try as well… but will hopefully settle on the 75's
 
I just started shooting factory Hornady Black 75 grain Eldm in a new Howa 22" barreled rifle.
So far, with only 14 rounds through it on the first outing, it's liking the 75 Eldm and shot 1/2 moa out to 300 yards in 3 shot group and averaging 2975 fps.
Not bad for a pencil barrel with Scythe suppressor hanging off the end.

Didn't load anything yet as I'll be firing factory ammo for brass.

I did pick up a box of 62 ELD-vt to try as well… but will hopefully settle on the 75's
I don't think that is fast enough to use with those CX 70 gr Hornady bullets..
The Black , I think, refers to loads comparable with the AR rifles and are not loaded for max chamber pressure.
But man I love that accuracy!
 
I'm going to start playing with my 22 arc again. I was running the 80.5's with 4895 excellent accuracy out of a 20' barrel. 2985-3050. I'm gonna try 4895 with the 75's this week IMG_1121.jpeg
 

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Good to know that the "Black" is gas gun loaded.
I bought what was available and on sale for $24/box.
I'm really liking this rifle, cartridge and its accuracy so far.
If it can be loaded a bit faster and still hold it's accuracy…I'll love it!

I already put it in a B&C stock with a Jefferson hinged floor plate before I even shot it! 😂😂
I also did that with my 6.5 Grendel years ago.
 
Good to know that the "Black" is gas gun loaded.
I bought what was available and on sale for $24/box.
I'm really liking this rifle, cartridge and its accuracy so far.
If it can be loaded a bit faster and still hold it's accuracy…I'll love it!

I already put it in a B&C stock with a Jefferson hinged floor plate before I even shot it! 😂😂
I also did that with my 6.5 Grendel years ago.
Do you know what the maximum length bullet that your magazine will work with? Hornady sells a tool that will tell what overall length bullet your chamber will accept. Rosie's video #2 on Hornady web site shows how that works but I may be the only one needing the tutorial.
 
Do you know what the maximum length bullet that your magazine will work with? Hornady sells a tool that will tell what overall length bullet your chamber will accept. Rosie's video #2 on Hornady web site shows how that works but I may be the only one needing the tutorial. But watching Rosie ain't a terrible way to spend a few.
 
I have a 22 Arc bolt gun with a 22" barrel.
I would like to load for max velocity w/ Hornady 70 gr CX copper.
I see Hornady has load data for both gas guns and for bolt rifles.
The max pressure in their load published data almost looks like a C.Y.A. Play to prevent damage to the gas guns.
Why is the pressure so low in comparison to other cartridges?
And might anyone have a favorite worked load for these CX bullets?
I wouldn't consider 60-62k psi low pressure.
IMG_9331.png
 
Do you know what the maximum length bullet that your magazine will work with? Hornady sells a tool that will tell what overall length bullet your chamber will accept. Rosie's video #2 on Hornady web site shows how that works but I may be the only one needing the tutorial.
I don't know yet.
I didn't measure max mag length yet, nor did I measure base to ogive touching the lands since I'm still shooting factory ammo.
However, the 75's are hanging out the case pretty good … looks nothing like the factory 22-250 or 223 ammo with bullets barely sticking out the case.
It's a pretty good looking little cartridge!
 
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