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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Internal ballistics frustration.
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<blockquote data-quote="Michael Eichele" data-source="post: 132859" data-attributes="member: 1007"><p>[ QUOTE ]</p><p> Sometimes they go quick and sometimes they gradually fall off. But believe me, pushing 95 grains of powder down a 30 caliber hole will be hard for any barrel and it will probably be done sooner rather than later! </p><p></p><p>[/ QUOTE ] </p><p></p><p>Amen to that!!</p><p></p><p>I was a bit sckeptical about getting such an overbore caliber at first due to this fact. That and the cost of powder and the ability to load it into the case with a shovel, plus the recoil. I had been a die hard 308 finatic. I still am. But the trade offs are worth it when I have a 1500#+ critter in the crosshairs at 650 yards. This rifle has as much energy at 600 yards as my 308 has at the muzzle. For the reason that the barrels burn out so fast is why I had it set up as a switch barrel. I also have an ABS barrel in the works and hope to get some loads developed and I think after some initial testing and verification, I will for the most part quit shoting that barrel. I will then get another Lilja to replace the one I have for the amount of shooting I do. He?? its only money right! /ubbthreads/images/graemlins/grin.gif</p><p></p><p>Also, that .002" expansion at the base that I cannot get rid of with my die, my chamber is .5479 and the cases are .547. After FL resize, the chamber and extract perfectly before they are fired. My question is this. Scince I started bumping the shoulder back less, the problem is starting to iron itself out. Why would bumping the shoulder .005" back and then firing it cause this?? I would have thought it would generate less pressure. I do know that some time ago, I set some back .025" and after firing the first one, it literaly blew the case in half around the case head. In other words there was complete case head seperation. The funny thing was, the chrony read a lower than normal velocity. This too seperated my extractor. ARRRGGG!</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 132859, member: 1007"] [ QUOTE ] Sometimes they go quick and sometimes they gradually fall off. But believe me, pushing 95 grains of powder down a 30 caliber hole will be hard for any barrel and it will probably be done sooner rather than later! [/ QUOTE ] Amen to that!! I was a bit sckeptical about getting such an overbore caliber at first due to this fact. That and the cost of powder and the ability to load it into the case with a shovel, plus the recoil. I had been a die hard 308 finatic. I still am. But the trade offs are worth it when I have a 1500#+ critter in the crosshairs at 650 yards. This rifle has as much energy at 600 yards as my 308 has at the muzzle. For the reason that the barrels burn out so fast is why I had it set up as a switch barrel. I also have an ABS barrel in the works and hope to get some loads developed and I think after some initial testing and verification, I will for the most part quit shoting that barrel. I will then get another Lilja to replace the one I have for the amount of shooting I do. He?? its only money right! [img]/ubbthreads/images/graemlins/grin.gif[/img] Also, that .002" expansion at the base that I cannot get rid of with my die, my chamber is .5479 and the cases are .547. After FL resize, the chamber and extract perfectly before they are fired. My question is this. Scince I started bumping the shoulder back less, the problem is starting to iron itself out. Why would bumping the shoulder .005" back and then firing it cause this?? I would have thought it would generate less pressure. I do know that some time ago, I set some back .025" and after firing the first one, it literaly blew the case in half around the case head. In other words there was complete case head seperation. The funny thing was, the chrony read a lower than normal velocity. This too seperated my extractor. ARRRGGG! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Internal ballistics frustration.
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