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  #11  
Old 08-26-2017, 03:29 PM
milprileb milprileb is online now
 
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Quote:
Originally Posted by H2O MAN View Post
I would like to try 1000 yard shooting someday, but most of my practical shooting is done inside of 400 yards.
Pls contact me if you are up this way, I'd sponsor you to shoot with us.
I am sure you'd like to "stretch your legs " !!
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  #12  
Old 08-26-2017, 03:31 PM
milprileb milprileb is online now
 
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Perhaps the standard Sadlak might be worth a try, so thanks for that idea.
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  #13  
Old 09-04-2017, 07:21 PM
lyman lyman is offline
 
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Mil

think about it this way,

NM rifles shot 173gr M118 ball all day long and twice on sundays,

no fancy gas piston (other then maybe polished a bit,, )

why would you need it ??
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  #14  
Old 09-04-2017, 09:18 PM
Ted Brown Ted Brown is offline
 
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Location: Jacksonville, OR
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We tried slotted pistons on our NG team rifles for a season and switched back to standard after finding that the slotted piston did not have any significant advantage. I've fired many thousands of rounds of 168, 173, and 180 grain match bullets using standard pistons with no issues.
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  #15  
Old 09-05-2017, 08:26 AM
rickgman rickgman is offline
 
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Quote:
Originally Posted by Ted Brown View Post
We tried slotted pistons on our NG team rifles for a season and switched back to standard after finding that the slotted piston did not have any significant advantage. I've fired many thousands of rounds of 168, 173, and 180 grain match bullets using standard pistons with no issues.
Ted, were there any issues with the slotted pistons in any rifles or did they simply perform just like a standard piston? Thanks!
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  #16  
Old 09-05-2017, 08:52 AM
milprileb milprileb is online now
 
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POOOF...there went any notion shooting 175's were tough on a M1A and I needed the Sadlak grooved piston.... I sure got skunked buying that piston ! My experience mirrors what Ted is saying but where we differ is , I found grooved piston gave terrible accuracy at 1000 yds and putting standard piston back in my M1A restored accuracy.

What is missing in this thread are those who believe one needs a grooved piston for shooting 175 gr bullets ...where are they ? They seem to be ducking but about 10 yrs ago, they were squawking you had to go with the grooved piston or I'd shoot my M1A to pieces with 175 gr bullet loads.

Thanks to all for piling in on this discussion and clearing the decks on this subject. I know Ted builds rifles so if he is not in love with grooved pistons , that further closes the issue for me.

I'm only out a few bucks , no harm done so turning the page ...permanently.

Last edited by milprileb; 09-05-2017 at 08:55 AM.
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  #17  
Old 09-05-2017, 12:34 PM
Ted Brown Ted Brown is offline
 
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I'm not saying there is no great advantage to a slotted piston, just no significant advantage. The NG Team rifles still worked fine and there was a slight reduction in felt recoil due to the longer timing curve which results in slower piston movement and bolt velocity. The biggest advantage was between the operators ears as it instills confidence that the gas system is running freely, ie: the piston slide back and forth faster when the rifle is tilted. We were shooting only M118 at the time so no ammo issues.

Commercial rifles are different. I have found that some custom built NM rifles short cycle when using a slotted piston so there is a reliability issue. Ammo is a factor in this.

I think that if your rifle functions reliably and consistently with the ammo you use, it's OK to run a slotted piston. I just don't necessarily recommend them.
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  #18  
Old 09-05-2017, 12:45 PM
milprileb milprileb is online now
 
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Thanks Ted, as said, accuracy flopped when I went to the Sadlak slotted piston...That is enough proof for me.
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  #19  
Old 09-05-2017, 04:07 PM
rickgman rickgman is offline
 
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Ted, Thanks for your explanation.
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  #20  
Old 09-06-2017, 10:46 AM
GM1MAN GM1MAN is online now
 
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Thanks for this post, I had often wondered about the different Pistons!
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