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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 VODKA
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<blockquote data-quote="Calvin45" data-source="post: 2035992" data-attributes="member: 109862"><p>Next on the agenda shall be the .30-408 cheytac or a shorter version of said cartridge no doubt. Overbore is a subjective word subject to change. There was a time when the 270 win was slow to be accepted because it was an impractical overbore hot rod and "what possible need is there for that kind of meat ruining muzzle velocity". </p><p>I actually entertain this possibility. I keep wondering when then ultra slow triple base powders used in cannons and military application will go commercial and redefine overbore again. (Nitroguanidine being the third, nitroglycerin and nitrocellulose being the familiar two - the third currently only found in trace amounts in "flash suppressed propellants")</p><p></p><p>couple this with either the crazy heavy brass the OP, swamp lord, has designed or the new steel/brass hybrid design pioneered by sig in their 277 fury, and 80000 psi might soon be the new 60000.</p><p></p><p>Add to this what we've learned about hexagonal boron nitride and it's ability to seriously slow barrel erosion while allowing greater velocity at equal pressure , or hammer bullet style geometry, or gs custom drive bands...</p><p></p><p>we haven't hit the limit yet.</p><p></p><p>we had some time ago, I know Kirby Allen tried a .30-408 and it just plain didn't work, too much room for even the slowest powders available.</p><p></p><p>I think this is going to change.</p></blockquote><p></p>
[QUOTE="Calvin45, post: 2035992, member: 109862"] Next on the agenda shall be the .30-408 cheytac or a shorter version of said cartridge no doubt. Overbore is a subjective word subject to change. There was a time when the 270 win was slow to be accepted because it was an impractical overbore hot rod and “what possible need is there for that kind of meat ruining muzzle velocity”. I actually entertain this possibility. I keep wondering when then ultra slow triple base powders used in cannons and military application will go commercial and redefine overbore again. (Nitroguanidine being the third, nitroglycerin and nitrocellulose being the familiar two - the third currently only found in trace amounts in “flash suppressed propellants”) couple this with either the crazy heavy brass the OP, swamp lord, has designed or the new steel/brass hybrid design pioneered by sig in their 277 fury, and 80000 psi might soon be the new 60000. Add to this what we’ve learned about hexagonal boron nitride and it’s ability to seriously slow barrel erosion while allowing greater velocity at equal pressure , or hammer bullet style geometry, or gs custom drive bands... we haven’t hit the limit yet. we had some time ago, I know Kirby Allen tried a .30-408 and it just plain didn’t work, too much room for even the slowest powders available. I think this is going to change. [/QUOTE]
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