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Long Range Hunting & Shooting
.338 calibers
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<blockquote data-quote="Autorotate" data-source="post: 616624" data-attributes="member: 8073"><p>There's isn't much room for improvment in the Excalibur case IMHO. I know APS keeps there wildcat specs closehold (as they should if they so desire), but that case is already at a minimum body taper @ .0053 TPI....shoulder is already 28 deg...neck is just a shade over a caliber long.....</p><p> </p><p>The load I settled on for my Excalibur looks like-</p><p> </p><p>122 gr H-50 BMG</p><p>F215GM</p><p>300 SMK</p><p>.002 worth of neck tension</p><p>Neck sized only</p><p>3082 fps avg over 8 shots</p><p>ES 16 fps over 8 shots</p><p>31.25" barrel from bolt face to muzzle crown</p><p>Brux 10 twist</p><p> </p><p>But as was stated before....I'd look real hard at the realistic ranges you plan on hunting. IMHO-The performance advantage of the bigger cases/bigger bullets is only seen at ranges that quickly surpass the realistic shot opportunities presented as a result of constraints of enviro conditions, spotter/shooter ability, and ranging/ballistic computing solutions.</p><p> </p><p>Honest tough question for APS and Lazzeroni....not looking to stir anything up-</p><p> </p><p>Does Lazzeroni or APS do pressure barrel testing?</p><p> </p><p>Kind of hard to put a number to pressures without that isn't?</p></blockquote><p></p>
[QUOTE="Autorotate, post: 616624, member: 8073"] There's isn't much room for improvment in the Excalibur case IMHO. I know APS keeps there wildcat specs closehold (as they should if they so desire), but that case is already at a minimum body taper @ .0053 TPI....shoulder is already 28 deg...neck is just a shade over a caliber long..... The load I settled on for my Excalibur looks like- 122 gr H-50 BMG F215GM 300 SMK .002 worth of neck tension Neck sized only 3082 fps avg over 8 shots ES 16 fps over 8 shots 31.25" barrel from bolt face to muzzle crown Brux 10 twist But as was stated before....I'd look real hard at the realistic ranges you plan on hunting. IMHO-The performance advantage of the bigger cases/bigger bullets is only seen at ranges that quickly surpass the realistic shot opportunities presented as a result of constraints of enviro conditions, spotter/shooter ability, and ranging/ballistic computing solutions. Honest tough question for APS and Lazzeroni....not looking to stir anything up- Does Lazzeroni or APS do pressure barrel testing? Kind of hard to put a number to pressures without that isn't? [/QUOTE]
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