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Question for RL-22 in magnum shooters

 
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  #1  
Old 06-05-2005, 09:51 PM
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Join Date: Jan 2004
Location: Blackfoot, Idaho
Posts: 8,061
Question for RL-22 in magnum shooters

Having some funny experiences "I think".

Shooting a 338 Win with 75 gr RL-22 behind Sierra 250gr gamekings and FED-215 primers. Velocity is right at 2800 fps. SD is good. COL is 3.35". Pressures "appear" a lot lower than 74 grains of RL-22 and the 225 gr bullets.

The symptom appears in the muzzle blast. When groups are good (less than inch at 200) there is a "certain" muzzle blast. When groups go to pot muzzle blast sends the chrony reflectors like scattered quail. No kidden! Muzzle blast can be seen in the tree branches/leaves about 30 feet away.

Saturday after I got the dies set up 3 3-shot groups averaged <0.6". Velocity spread was tight. Then things went to pot. Muzzle blast blew the plastic reflectors every shot for the next 3 groups. Velocity spread was still good. Groups opened to 4 or 5 inches.
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  #2  
Old 06-06-2005, 03:08 AM
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Join Date: May 2001
Location: Northern Cambria, PA
Posts: 71
Re: Question for RL-22 in magnum shooters

Great powder..shoot it in a 6mm/284, great groups with just about everything else I use it in..only drawback..it's dirty, really makes a mess with all the residue it leaves behind, at least in my bores...just switch over to "H-4350" and end most of the problems..I've found the the "H" versions shoots better in all my magnum rifles..
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