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Question for RL-22 in magnum shooters
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<blockquote data-quote="royinidaho" data-source="post: 72854" data-attributes="member: 2011"><p>Having some funny experiences "I think".</p><p></p><p>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.</p><p></p><p>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.</p><p></p><p>Saturday after I got the dies set up 3 3-shot groups averaged &lt;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.</p></blockquote><p></p>
[QUOTE="royinidaho, post: 72854, member: 2011"] 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. [/QUOTE]
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