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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.308 SMK Report on Texas White Tail
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<blockquote data-quote="Rheinhardt" data-source="post: 94866" data-attributes="member: 5142"><p>I am new to the forums and figured this was as good a place as any to say hi. I have only been into the longrange varminting/paper punching scene for maybe 5 years now. Up here in New York we don't have a many big game shots much beyond 50-200 yards in most realistic hunting situations in the Northern Tier but since the Southern Tier is now allowed to use the rifle I have spend alot of time researching this forum and others trying to get some good information. Like anyone infected with the accuracy bug I spend alot of time trying to get some opinions about what works and what doesn't. This forum seems like a really good repository of very valuble experience. I guess I just wanted to put forth my own comments from my limited experience and maybe ask a question or two if I could without hijacking the thread. </p><p></p><p>My comments regarding the bullet chart POP posted: The matchking definately appears to break apart in the medium. Whether the medium used in this experiment is appropriate for simulation of game animal tissue can be debated but it still seems to me that the matchking construction is unlike any of the other test bullets: no other bullet exhibits the matchking behavior. However whats more interesting is the penetration. I have yet to see anyone mention it but despite the SMK appearing totally fragment it still yields an average penetration depth equal to other bullets propelled at that velocity. Strange for a bullet that looks like it is breaking apart on impact to come anywhere close to the depths indicated. I can only surmise that the fragmentation of the SMK only occurs AFTER the bullet has passed signifcantly in the medium and then breaks down once it has decelerated. If thats the case, and I am getting a solid 15-19 inches of penetration before that baby fragments what you should have is a bullet that pierces the hide then fragments once its in soft tissue. And from some of the photos I have seen posted on these forums, thats exactly what seems to happen when everything works out right. I would be very intrested to see the medium used for testing cross-sectioned so we can get a better 3 dimensional picture as to whats going on.</p><p></p><p>Another comment I wanted to make was comparing the 30 caliber SMK to larger caliber SMK. From what I have seen and read in the forums there are few who question the .338" diameter and up. Most of what I would consider the insanity pictures (you know the ones where the deer have a whole in their side big enough to toss a cat thru it) were all shot with a 338 or larger bullet. Seems like this topic really flares up when anyone using a 30 caliber or smaller. I was curious, does anyone have the internal matchking dimensions? I was just curious as to wall thickness, hollowpoint cavity, etc. If there is a real proportional difference between the various calibers.</p><p></p><p>Another point regarding this picture POP posted: Check out *reliable* expansion on most of these bullets. Looks like around 1200-1000 ft/lbs of energy most bullets cease to expand reliably, most stop expanding at all. Does this not negate the real *advantage* to using a hunting bullet versus a match bullet, especially considering in this forum we are talking about hunting at such long ranges? Seeing the Remington Core-Lokt stops expanding at 500 yards why would I opt to use it when I can get an SMK with what I would consider to be superior consitency and long range aerodynamic performance? In my very humble experience long range shooting its my belief that the hardest challenge is actually connecting with your target.</p><p></p><p>Just my 2 cents: Load a Sierra 175 SMK and a Sierra 180 RN. Keep both in your pocket. Point of impact should be the same or at least close enough so if your zero at 200 yards with the SMK your **** close enough with the RN it wont matter. If your taking a stroll thru the thick pines load a RN in the chamber. You see that big buck out at the edge of the hedgerow when you exit, swap cartridges. And don't hand me that crap you dont have enough time. If you have time to set up a 600 yard shot, you have time to swap the cartridge. /ubbthreads/images/graemlins/grin.gif</p></blockquote><p></p>
[QUOTE="Rheinhardt, post: 94866, member: 5142"] I am new to the forums and figured this was as good a place as any to say hi. I have only been into the longrange varminting/paper punching scene for maybe 5 years now. Up here in New York we don't have a many big game shots much beyond 50-200 yards in most realistic hunting situations in the Northern Tier but since the Southern Tier is now allowed to use the rifle I have spend alot of time researching this forum and others trying to get some good information. Like anyone infected with the accuracy bug I spend alot of time trying to get some opinions about what works and what doesn't. This forum seems like a really good repository of very valuble experience. I guess I just wanted to put forth my own comments from my limited experience and maybe ask a question or two if I could without hijacking the thread. My comments regarding the bullet chart POP posted: The matchking definately appears to break apart in the medium. Whether the medium used in this experiment is appropriate for simulation of game animal tissue can be debated but it still seems to me that the matchking construction is unlike any of the other test bullets: no other bullet exhibits the matchking behavior. However whats more interesting is the penetration. I have yet to see anyone mention it but despite the SMK appearing totally fragment it still yields an average penetration depth equal to other bullets propelled at that velocity. Strange for a bullet that looks like it is breaking apart on impact to come anywhere close to the depths indicated. I can only surmise that the fragmentation of the SMK only occurs AFTER the bullet has passed signifcantly in the medium and then breaks down once it has decelerated. If thats the case, and I am getting a solid 15-19 inches of penetration before that baby fragments what you should have is a bullet that pierces the hide then fragments once its in soft tissue. And from some of the photos I have seen posted on these forums, thats exactly what seems to happen when everything works out right. I would be very intrested to see the medium used for testing cross-sectioned so we can get a better 3 dimensional picture as to whats going on. Another comment I wanted to make was comparing the 30 caliber SMK to larger caliber SMK. From what I have seen and read in the forums there are few who question the .338" diameter and up. Most of what I would consider the insanity pictures (you know the ones where the deer have a whole in their side big enough to toss a cat thru it) were all shot with a 338 or larger bullet. Seems like this topic really flares up when anyone using a 30 caliber or smaller. I was curious, does anyone have the internal matchking dimensions? I was just curious as to wall thickness, hollowpoint cavity, etc. If there is a real proportional difference between the various calibers. Another point regarding this picture POP posted: Check out *reliable* expansion on most of these bullets. Looks like around 1200-1000 ft/lbs of energy most bullets cease to expand reliably, most stop expanding at all. Does this not negate the real *advantage* to using a hunting bullet versus a match bullet, especially considering in this forum we are talking about hunting at such long ranges? Seeing the Remington Core-Lokt stops expanding at 500 yards why would I opt to use it when I can get an SMK with what I would consider to be superior consitency and long range aerodynamic performance? In my very humble experience long range shooting its my belief that the hardest challenge is actually connecting with your target. Just my 2 cents: Load a Sierra 175 SMK and a Sierra 180 RN. Keep both in your pocket. Point of impact should be the same or at least close enough so if your zero at 200 yards with the SMK your **** close enough with the RN it wont matter. If your taking a stroll thru the thick pines load a RN in the chamber. You see that big buck out at the edge of the hedgerow when you exit, swap cartridges. And don't hand me that crap you dont have enough time. If you have time to set up a 600 yard shot, you have time to swap the cartridge. [img]/ubbthreads/images/graemlins/grin.gif[/img] [/QUOTE]
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.308 SMK Report on Texas White Tail
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