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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrle Length...
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<blockquote data-quote="shortgrass" data-source="post: 559689" data-attributes="member: 24284"><p>Now I'd like to see a test done using the .22 Hornet! Would, no doubt, make for an easier to evaluate test. And for the sake of discussion, I remember from an earlier post, a statement made to the affect that "muzzle pressures would drop but velocity would increase". Just can't go there. What about a 'squib' load, for example, where the bullet never exites the barrel? Also, a reference to "going on a vacuum". I'm not sure that is possible. I know of no breeching system used today in sporting/target/tactical rifle that is 'air tight'. The brass case acts as not only the container for the propellant, primer, and bullet, it also acts as the 'gasket' to seal the breech end. And, it only remains a 'gasket' as long as there is sufficent pressure to expand that brass for a 'gasket' type fit. Even then, we've all seen some 'leakage' at one time or another. So, it is not perfect, but the best we have. There may be just way too many variables for any test to be completely valid, or, maybe I'm just not thinking about it in the right way or just plain <em>not smart enough! </em>I do believe a smaller case using its' smaller propellant charges would be easier to see results from. No bash intended on Dan Liljas' test.</p></blockquote><p></p>
[QUOTE="shortgrass, post: 559689, member: 24284"] Now I'd like to see a test done using the .22 Hornet! Would, no doubt, make for an easier to evaluate test. And for the sake of discussion, I remember from an earlier post, a statement made to the affect that "muzzle pressures would drop but velocity would increase". Just can't go there. What about a 'squib' load, for example, where the bullet never exites the barrel? Also, a reference to "going on a vacuum". I'm not sure that is possible. I know of no breeching system used today in sporting/target/tactical rifle that is 'air tight'. The brass case acts as not only the container for the propellant, primer, and bullet, it also acts as the 'gasket' to seal the breech end. And, it only remains a 'gasket' as long as there is sufficent pressure to expand that brass for a 'gasket' type fit. Even then, we've all seen some 'leakage' at one time or another. So, it is not perfect, but the best we have. There may be just way too many variables for any test to be completely valid, or, maybe I'm just not thinking about it in the right way or just plain [I]not smart enough! [/I]I do believe a smaller case using its' smaller propellant charges would be easier to see results from. No bash intended on Dan Liljas' test. [/QUOTE]
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