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Old 10-29-2018, 02:43 AM
foxhunter foxhunter is offline
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Default brain picking on pressure

are the 222 cases weaker than the 223? I have would 222 Remington made from 223 lake city handle more pressure?

222 Remington 50,000---222 Rem Mag 50,000 cup--- 223 Remington 55,000
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Old 10-29-2018, 01:38 PM
ray h ray h is offline
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Bob, just guessing on my part but I would think the head thickness, in new modern brass, would be the same. The company wouldn't have different draw dies for different calibers. The first couple draws on any 222 head dia would be the same, only the draw length of brass would be different. I think I read on Starline that their 5.56 brass has a different brass to make the base stronger. I've been thinking of trying their 5.56 brass for a couple short 17 and 20's.
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Old 10-29-2018, 03:33 PM
foxhunter foxhunter is offline
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do you think Saami specs are just behind the times? I haven't reloaded 222 ammo for over 30 years. I know back in the day 222 brass would expand at lower pressure than 223.
had an interesting experience with rcbs dies I bought this weekend. you could seat the bullets with your finger and pull them back out. measured the expander ball and it measured .226 not the .222 it should have been. rcbs is sending a new one, mean time I'll use my .223 expander rod that measures .222.
I have access to a bunch of lake city .223 brass, might try some.
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Old 10-29-2018, 03:57 PM
Daryl Daryl is offline
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My .222 brass is relatively new, maybe 13 years old. I max. out with 40gr. at 3,600fps from my A1 Sako (get sticky at 3,650fps), while was easy to make 3,650fps from .218Bee in my Ruger #1 with the same 40gr. bullets. Go figure.

The .223 brass might be a good idea, but outside turning will likely be necessary.
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Old 10-29-2018, 05:26 PM
GLWenzl GLWenzl is offline
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Quote:
Originally Posted by foxhunter View Post
do you think Saami specs are just behind the times? I haven't reloaded 222 ammo for over 30 years. I know back in the day 222 brass would expand at lower pressure than 223.
had an interesting experience with rcbs dies I bought this weekend. you could seat the bullets with your finger and pull them back out. measured the expander ball and it measured .226 not the .222 it should have been. rcbs is sending a new one, mean time I'll use my .223 expander rod that measures .222.
I have access to a bunch of lake city .223 brass, might try some.
Until you stated your experience, I would have made a wag that the spec wasn’t outdated but rather made because some companies built their rifles to that lower spec.

I have used and still have a large quantity of lc brass. But I didn’t see a difference. However I can’t remember if I used it for a 222 or not. Mostly only 17 and 20s.
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Old 10-29-2018, 05:31 PM
GLWenzl GLWenzl is offline
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Quote:
Originally Posted by Daryl View Post
My .222 brass is relatively new, maybe 13 years old. I max. out with 40gr. at 3,600fps from my A1 Sako (get sticky at 3,650fps), while was easy to make 3,650fps from .218Bee in my Ruger #1 with the same 40gr. bullets. Go figure.

The .223 brass might be a good idea, but outside turning will likely be necessary.
.
Seems to me that the rim on the bee brass must really help out a bunch. Very impressive but not totally indestructible. Once using a warm fireforming load in the 17 kB. Reloaded the formed cases with the exact same load and I was noticeably over pressure.
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Old 10-29-2018, 05:43 PM
ray h ray h is offline
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Bob 12 years or so ago I was using RCBS Load to do some ''what if'' case design. I started with the 222 and made steps downward in .160 steps and checked the case capacity of the new case. I then substituted 223 and 221 brass for the parent case but used the OAL of the new cases to compare case volume. They were almost exactly the same volume. That lead me to think all cases in the 222 family had the same head design. My 222 on a CZ isn't much better than my 221, velocity wise, using 40 and 50 gr bullets.
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Old 10-29-2018, 06:46 PM
DittoHead DittoHead is offline
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Food for thought:

http://www.saubier.com/forum/showpos...08&postcount=5
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Old 10-29-2018, 10:06 PM
CatShooter CatShooter is offline
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Quote:
Originally Posted by foxhunter View Post
are the 222 cases weaker than the 223? I have would 222 Remington made from 223 lake city handle more pressure?

222 Remington 50,000---222 Rem Mag 50,000 cup--- 223 Remington 55,000
You cannot compare the two by comparing the SAAMI pressures.

Cases in either caliber are NOT made the same.

Some makers have thick webs, and some have thin webs - some makes have hard brass in the head and some have soft brass in the head.

Pick the best (hardest) brass in your calibre and go from there/









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Old 10-29-2018, 11:14 PM
foxhunter foxhunter is offline
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catshooter, I think you just verified what I was talking about. it would be interesting to see what the web measurements were 40 years ago on 222 brass.
I see those cases are all .223 brass. I have a bunch of .204 ruger I am going to make into 300 aac blackout or 20 tactical, I don't have a 204 any more.
as ben franklin said " waste not want not"

good points Daryk and gary.
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