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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
If you could design a cartridge from scratch
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<blockquote data-quote="Calvin45" data-source="post: 2840851" data-attributes="member: 109862"><p>If money were no object it'd be fun to try and see just how hard one could push the envelope. Not for any practical reason, just fun, in the name of SCIENCE <img class="smilie smilie--emoji" loading="lazy" alt="🤣" title="Rolling on the floor laughing :rofl:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f923.png" data-shortname=":rofl:" /></p><p></p><p>I do know some larger military arms use TRIPLE BASE powder - nitrocellulose, nitroglycerin, nitroguanidine. The latter is found in small amount in some consumer "flash reduced" powders. It has all at once a slower burn rate than either of the former but higher total gas expansion velocity at lower temps with lower flash. Too slow to be useful in most any sane "small arms". </p><p></p><p>Pair it in conjunction with a modern "precision falling block" action made tough as nails and allowing a longer barrel for given rifle length. See if carbon wrapping a truly thick and long pipe adds rigidity worth noting. </p><p></p><p>Experiment it polygonal rifling (a very small number of rifles do use this, HK makes some, as well as glock pistols). Gain twist and VERY slight "gain squeeze" going down the pipe maybe. nitride treated. No less than 34 inch pipe, probably longer. </p><p></p><p>Revisit the .30-408 cheytac that [USER=10]@Fiftydriver[/USER] experimented with in the early days of APS rifles with erratic results and bullets that couldn't take it, now with monos and this ultra slow progressive powder. Some hammer grooves might not hurt <img class="smilie smilie--emoji" loading="lazy" alt="😁" title="Beaming face with smiling eyes :grin:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f601.png" data-shortname=":grin:" /> or drive bands or bore riders etc. HBN treated. </p><p></p><p>See just how dang fast we can go with a 30</p></blockquote><p></p>
[QUOTE="Calvin45, post: 2840851, member: 109862"] If money were no object it’d be fun to try and see just how hard one could push the envelope. Not for any practical reason, just fun, in the name of SCIENCE 🤣 I do know some larger military arms use TRIPLE BASE powder - nitrocellulose, nitroglycerin, nitroguanidine. The latter is found in small amount in some consumer “flash reduced” powders. It has all at once a slower burn rate than either of the former but higher total gas expansion velocity at lower temps with lower flash. Too slow to be useful in most any sane “small arms”. Pair it in conjunction with a modern “precision falling block” action made tough as nails and allowing a longer barrel for given rifle length. See if carbon wrapping a truly thick and long pipe adds rigidity worth noting. Experiment it polygonal rifling (a very small number of rifles do use this, HK makes some, as well as glock pistols). Gain twist and VERY slight “gain squeeze” going down the pipe maybe. nitride treated. No less than 34 inch pipe, probably longer. Revisit the .30-408 cheytac that [USER=10]@Fiftydriver[/USER] experimented with in the early days of APS rifles with erratic results and bullets that couldn’t take it, now with monos and this ultra slow progressive powder. Some hammer grooves might not hurt 😁 or drive bands or bore riders etc. HBN treated. See just how dang fast we can go with a 30 [/QUOTE]
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If you could design a cartridge from scratch
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