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  #31  
Old 10-13-2014, 04:18 AM
Bayou City Boy Bayou City Boy is offline
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Originally Posted by ab_bentley View Post



I see the O-Rings. Look at the cases.....




Adam
Yes, Adam..... They're very visible on the two cases on the right and also on a few of the cases in the cartridge box.

That said........Without a false shoulder to hold the entire length of the cartridge in place in the rifle chamber there is little to keep the case from stretching in the web area. Especially on a thin case like the Hornet.

Granted the Hornet head spaces on the rim, but when fire forming to a new cartridge design, any case has the potential to stretch excessively lengthwise if not supported fully lengthwise by the new chamber.

The OP may get by just fine with his idea. I'm sticking with the false shoulder approach. But I'm only me...........

-BCB
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  #32  
Old 10-13-2014, 04:53 PM
Daryl Daryl is offline
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Brass longevity will be the final test on the O rings. I'm on my 6th firing using RP Hornet brass in my .17AH, after 14 as .22 Hornet with 40fr. making 3,340fps.
That's 20 loading so far and none lost to case web separations or expanded primer pockets.
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  #33  
Old 10-13-2014, 05:21 PM
Dick Kohles Dick Kohles is offline
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Default 0 rings

Ok. Got it.
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  #34  
Old 10-13-2014, 10:20 PM
Bayou City Boy Bayou City Boy is offline
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Originally Posted by Daryl View Post
Brass longevity will be the final test on the O rings. I'm on my 6th firing using RP Hornet brass in my .17AH, after 14 as .22 Hornet with 40fr. making 3,340fps.
That's 20 loading so far and none lost to case web separations or expanded primer pockets.
Did you use o-rings or a false shoulder for head space purposes?

-BCB
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I miss mean Tweets, competence, and $1.79 per gallon gasoline.

Yo no creo en santos que orinan.

Women and cats will do as they please. Men and dogs should relax and just get used to the idea.

Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it.

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  #35  
Old 10-14-2014, 10:41 AM
Daryl Daryl is offline
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Originally Posted by Bayou City Boy View Post
Did you use o-rings or a false shoulder for head space purposes?

-BCB
Always head spaced off the shoulder, otherwise there is too much chance of the case lengthening just ahead of the web, thus shortening case life, ie: case head separations.

I do believe most of us do it this way as the case cannot stretch above the web and the shoulder simply blows out to fit the chamber as the case is heald rigidly between the chamber's shoulder and the bolt face.
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  #36  
Old 10-14-2014, 12:42 PM
Dick Kohles Dick Kohles is offline
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Default O Rings

Fireformed approximately 7000 Cases w/o the O ring, never had a problem with the headddspace.
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Last edited by Dick Kohles; 10-14-2014 at 12:45 PM. Reason: grammer
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  #37  
Old 10-14-2014, 12:53 PM
ab_bentley ab_bentley is offline
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Dick, did you still have crush fit on the shoulder?


Adam
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  #38  
Old 10-15-2014, 12:14 AM
Bayou City Boy Bayou City Boy is offline
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Quote:
Originally Posted by Daryl View Post
Always head spaced off the shoulder, otherwise there is too much chance of the case lengthening just ahead of the web, thus shortening case life, ie: case head separations.

I do believe most of us do it this way as the case cannot stretch above the web and the shoulder simply blows out to fit the chamber as the case is heald rigidly between the chamber's shoulder and the bolt face.
My feelings exactly............

-BCB
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I miss mean Tweets, competence, and $1.79 per gallon gasoline.

Yo no creo en santos que orinan.

Women and cats will do as they please. Men and dogs should relax and just get used to the idea.

Going keyboard postal over something that you read on the internet is like seeing a pile of dog crap on the sidewalk and choosing to step in it rather than stepping around it.

If You're Afraid To Offend, You Can't Be Honest - Thomas Paine
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  #39  
Old 10-15-2014, 03:44 AM
bburrell bburrell is offline
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Quote:
Originally Posted by montdoug View Post
This is a CZ 452 in .17 Mach2 I picked up new in the box for $360.00ish.
5 shot group at 100 pretty typical 100 yrd group.


Left side buttstock.


Right side with smacked rat!


Keep Fat Cat outta my Kool-Aid, I don't want him looking for em in gun shops too .
Did I show you guys the picture of my .17 Hornet? ("Wink-Wink")

Dean I agree with ya on the Calhoon followers, also the fact that in some ways they are a little course. That said I'd rather slick up the bolt which always comes around, fix the 452 triggers; 3 to a $15.00 kit and have the accuracy nearly always outstanding than buy something a little less course only to work like crazy to try and find accuracy and hope it comes around.

Just kidding, everyone get's to like what they like and not like what they don't, no argument here!
Fat Cat you ole sly bones, you knew you'd get a rise oughtta the "Kool-Aid Boys remark didn't ya? Didn't ya? Come on now fess up LOL.

Doug, I hope that you were not posting the pics of your 17m2 to impress us with your shooting ability. As I see it, you missed that dime with every shot!
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  #40  
Old 10-15-2014, 07:15 AM
montdoug montdoug is offline
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Looks like I got the safest pocket change in the country .
Seems like I can't hit a dime fer a plugged nickle .
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