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Rifles, Reloading, Optics, Equipment
Gunsmithing
Custom Rifle accuracy expectations??
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<blockquote data-quote="GNERGY" data-source="post: 555143"><p>The idea you have of working up a load to a certain velocity and expecting it to shoot 1/2 moa should be thrown out the window. The gun is going to select the amount of powder that will make it accurate. You just have to pick the bullet that you want to use and the powder that will get you to the desired velocity, load up starting from a little above recommended minimum in 1/2 grain increments to the max load, or until the bolt gets a little hard to lift. Load 3 or 5 of each one and test them at 300 yds on paper. Pick the best group or 2 and then change seating depth a little and see if groups improve. Use your chronograph for load development and down range ballistics. Forget the extreme spread that everybody worries about.</p><p> You didn't say what caliber or weight bullet you want to use. Some of the heavier bullets don't stabilize ( or go to sleep as they say ) till after 200 yds. </p><p> When I was loading for my 338 Ultra mag the guys on this site to test my loads at 300 yds and not waste my time at 100. I wanted to shoot the Noslers and tried 4 different powders with out any acceptable results. I tried the 225gr. Barnes TTSX and got them to shoot like a laser. Here was some of my testing with a custom build.</p><p><a href="http://www.longrangehunting.com/forums/f17/finally-got-shoot-my-338-ultra-mag-part-2-a-57447/" target="_blank">http://www.longrangehunting.com/forums/f17/finally-got-shoot-my-338-ultra-mag-part-2-a-57447/</a></p><p> </p><p> <a href="http://www.longrangehunting.com/forums/f17/338-ultra-mag-225gr-barnes-results-57973/" target="_blank">http://www.longrangehunting.com/forums/f17/338-ultra-mag-225gr-barnes-results-57973/</a></p><p>Tarey</p></blockquote><p></p>
[QUOTE="GNERGY, post: 555143"] The idea you have of working up a load to a certain velocity and expecting it to shoot 1/2 moa should be thrown out the window. The gun is going to select the amount of powder that will make it accurate. You just have to pick the bullet that you want to use and the powder that will get you to the desired velocity, load up starting from a little above recommended minimum in 1/2 grain increments to the max load, or until the bolt gets a little hard to lift. Load 3 or 5 of each one and test them at 300 yds on paper. Pick the best group or 2 and then change seating depth a little and see if groups improve. Use your chronograph for load development and down range ballistics. Forget the extreme spread that everybody worries about. You didn't say what caliber or weight bullet you want to use. Some of the heavier bullets don't stabilize ( or go to sleep as they say ) till after 200 yds. When I was loading for my 338 Ultra mag the guys on this site to test my loads at 300 yds and not waste my time at 100. I wanted to shoot the Noslers and tried 4 different powders with out any acceptable results. I tried the 225gr. Barnes TTSX and got them to shoot like a laser. Here was some of my testing with a custom build. [URL]http://www.longrangehunting.com/forums/f17/finally-got-shoot-my-338-ultra-mag-part-2-a-57447/[/URL] [URL]http://www.longrangehunting.com/forums/f17/338-ultra-mag-225gr-barnes-results-57973/[/URL] Tarey [/QUOTE]
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