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Rifles, Reloading, Optics, Equipment
Rimfire and Airguns
Long Range 22LR
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<blockquote data-quote="Greyfox" data-source="post: 1472942" data-attributes="member: 10291"><p>Some general rules of thumb that I have found for LR rimfire(25-350 Yards)</p><p>-Match grade ammo at moderate velocity(<1200FPS) is more consistent, and typically performs better(more accurately) then high velocity(+1200FPS)ammo.</p><p>-Chronographing to determine loads with low SD/ES is necessary....I will get good results at SD's of 5-7. Lower is better! Different lots of ammo must be checked for consistency.</p><p>-Ballistic calculators/RF's work very well for elevation/windage given an accurate velocity and BC is determined.</p><p>-Ammo needs to be tested for "cold bore" performance in addition to precision(groups) in a given rifle if used for hunting.</p><p>-Different rifles give best results with a particular load(s). You may have to test several different loads/brands to find the best for your particular rifle.</p><p>-For 300 yard shooting, you will require 20-30MOA bases. My 1170FPS Fed HV load requires 13.3MILS elevation. I use a 20 MOA scope bases with a Vortex AMG.</p><p>Just some of my experiences.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1472942, member: 10291"] Some general rules of thumb that I have found for LR rimfire(25-350 Yards) -Match grade ammo at moderate velocity(<1200FPS) is more consistent, and typically performs better(more accurately) then high velocity(+1200FPS)ammo. -Chronographing to determine loads with low SD/ES is necessary....I will get good results at SD’s of 5-7. Lower is better! Different lots of ammo must be checked for consistency. -Ballistic calculators/RF’s work very well for elevation/windage given an accurate velocity and BC is determined. -Ammo needs to be tested for “cold bore” performance in addition to precision(groups) in a given rifle if used for hunting. -Different rifles give best results with a particular load(s). You may have to test several different loads/brands to find the best for your particular rifle. -For 300 yard shooting, you will require 20-30MOA bases. My 1170FPS Fed HV load requires 13.3MILS elevation. I use a 20 MOA scope bases with a Vortex AMG. Just some of my experiences. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Long Range 22LR
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