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Long Range Hunting & Shooting
243/6mm rifle build...thoughts?
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<blockquote data-quote="44-40" data-source="post: 2845058" data-attributes="member: 126985"><p>I built a long action 308 Win. Just to see what is possible with a 308, for 200 to 250 grain bullets, out of a 308 case, on an aluminum chasis and 30-06 mags to feed up to 3.4" cartridges...on a 30" 8 twist throated barrel, in my garage. </p><p>Before introducing the hybrid bimetal cases I was shooting 200 grain SMK at 2856 Ave. 225 eldm at 2675 fps, and 230 Atip at 2620 fps. The Hybrid case makes it possible to add more velocity 2952 fps out of a 308 case with 200 gr SMK, and a reformed 6.8x51 case. So far I like the lapua brass cases well enough and have not yet found the Magic powder for the 308, although incerases in velocities were obviously present.</p><p>So a long action can basically increase case capacity for the long aerodynamic bullets when they way out of the case.</p><p>But fired some more Bimetal hybrid cases in 6.5 Creedmoor with 150 gr at 2980 fps, 153 Atips at 2953 fps, and 147 gr eldm at 2976 fps as a standard acceptable load, this in a 24" factory 6 5 barrel. Not for the average guy who doesn't build his own rifles...but huge gains are possible in certain instances. For most a factory cartridge is the least expensive way to go. The 6mm Creedmoor is fine so is the 6.5 Creedmoor, with factory match ammo available for those who do not reload..they are low recoil for target work and affordable to shoot so you can become an expert...the magnums cost more in ammo & burn up barrels, more practice equals better shooting.</p></blockquote><p></p>
[QUOTE="44-40, post: 2845058, member: 126985"] I built a long action 308 Win. Just to see what is possible with a 308, for 200 to 250 grain bullets, out of a 308 case, on an aluminum chasis and 30-06 mags to feed up to 3.4" cartridges...on a 30" 8 twist throated barrel, in my garage. Before introducing the hybrid bimetal cases I was shooting 200 grain SMK at 2856 Ave. 225 eldm at 2675 fps, and 230 Atip at 2620 fps. The Hybrid case makes it possible to add more velocity 2952 fps out of a 308 case with 200 gr SMK, and a reformed 6.8x51 case. So far I like the lapua brass cases well enough and have not yet found the Magic powder for the 308, although incerases in velocities were obviously present. So a long action can basically increase case capacity for the long aerodynamic bullets when they way out of the case. But fired some more Bimetal hybrid cases in 6.5 Creedmoor with 150 gr at 2980 fps, 153 Atips at 2953 fps, and 147 gr eldm at 2976 fps as a standard acceptable load, this in a 24" factory 6 5 barrel. Not for the average guy who doesn't build his own rifles...but huge gains are possible in certain instances. For most a factory cartridge is the least expensive way to go. The 6mm Creedmoor is fine so is the 6.5 Creedmoor, with factory match ammo available for those who do not reload..they are low recoil for target work and affordable to shoot so you can become an expert...the magnums cost more in ammo & burn up barrels, more practice equals better shooting. [/QUOTE]
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243/6mm rifle build...thoughts?
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