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240 Sierra Match King
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<blockquote data-quote="Fiftydriver" data-source="post: 227830" data-attributes="member: 10"><p>I have not used the 240 gr SMK alot on game but have tested it extensively for long range accuracy in my 300 Allen Xpress. As far as easy to get 30 cal bullets, its the highest BC bullet out there that is an expanding bullet.</p><p> </p><p>That said, its a heavy bullet. Much heavier then it really needs to be for the BC you get out of it. You could easily get this same BC with a 220 gr bullet if designed properly but the industry is laging a bit on the 30 cal bullets for high BC, I mean those with +.7 BC.</p><p> </p><p>Anyway, I have tested it in my 300 AX in two different rifles, both 1-8 twist which is more then needed in many cases but they did prove to hold up to the RPM levels produced by my rifles which are very high.</p><p> </p><p>In a 31" Lawton 1-8 barrel, they could be driven to 3200 fps easily using H-US869. And when I say easily, I mean a faint ejector mark was the only sign of pressure and primer pockets lasted as long as you wanted to shoot the cases.</p><p> </p><p>My current rifle, wearing a Lilja 30" 1-8 barrel will also get 3200 fps but shows a bit more pressure sign with that level of load so I have topped that rifle out at 3175 fps for a max working load with the 240 gr SMK.</p><p> </p><p>This spring I went on an exotic big game hunt down in Oklahoma and Texas and used the 300 AX with the 240 gr SMK to take three head of game. This was a pretty good test.</p><p> </p><p>It was hot down there so I toned her down a bit and used Retumbo for powder because its more stable in a wider range of temps. THe load produced 3130 fps which was extremely comfortable. For those that like energy numbers, thats over 5200 ft/lbs of muzzle energy from a very mild load pressure wise.</p><p> </p><p>First test was on a big corsican ram at 655 yards. THe shot was a bit far back, impacting at the back of the lungs and a bit high, in the middle of the top third of the back. This can be a bad area to hit a big game animal if your bullet does not expand well which was one of my concerns using this bullet.</p><p> </p><p>The ram ran 25 yards and fell over dead!!!</p><p> </p><p>Second test, a big bodied texas dall ram at 820 yards. This was getting out there where it would test the bullets expansion ability with lower velocity. The shot was a difficult one, severe angling away from us. The bullet impacted just ahead of the right ham and exited just off center to the right on the rams neck, penetrating a good 25" at least. The exit wound was roughly 2" across so there was obviously good expansion still.</p><p> </p><p>The third test was certainly not long range, around 120 yards is all on a big axis buck. Full penetration even at this close range was not a problem, there was a huge exit wound however but with this much power at this close range in a relatively thin skinned critter, that is to be expected.</p><p> </p><p>After that hunt, I took some potential customers out to do some long range shooting. They all shot the 300 AX that I took down south. Those that shot it at the 720 yard gong easily rang steel consistantly. Several shot at a water filled milk jug at 940 yards but we thought no one hit it but dirt flew so close to the jug for each shot it was hard to complain as all three shots would have easily killed even a yote size critter.</p><p> </p><p>When we went to pick up the targets however, the jug was nearly empty of water and there were three bullet holes in the jug, 30 cal in and 30 cal out......</p><p> </p><p>Had I not witnessed what I did on Oklahoma and Texas, I probably would not have used this bullet on big game but I know they expand well on game and they shoot great as well. They are just overly heavy for what you get in BC.</p><p> </p><p>Hopefully someone gets this figured out and gets us a lighter weight bullet with a high BC that will consistantly expand on big game and not cost $1.50 to $2.00 each so we can go out and practice a bit without breaking the bank.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 227830, member: 10"] I have not used the 240 gr SMK alot on game but have tested it extensively for long range accuracy in my 300 Allen Xpress. As far as easy to get 30 cal bullets, its the highest BC bullet out there that is an expanding bullet. That said, its a heavy bullet. Much heavier then it really needs to be for the BC you get out of it. You could easily get this same BC with a 220 gr bullet if designed properly but the industry is laging a bit on the 30 cal bullets for high BC, I mean those with +.7 BC. Anyway, I have tested it in my 300 AX in two different rifles, both 1-8 twist which is more then needed in many cases but they did prove to hold up to the RPM levels produced by my rifles which are very high. In a 31" Lawton 1-8 barrel, they could be driven to 3200 fps easily using H-US869. And when I say easily, I mean a faint ejector mark was the only sign of pressure and primer pockets lasted as long as you wanted to shoot the cases. My current rifle, wearing a Lilja 30" 1-8 barrel will also get 3200 fps but shows a bit more pressure sign with that level of load so I have topped that rifle out at 3175 fps for a max working load with the 240 gr SMK. This spring I went on an exotic big game hunt down in Oklahoma and Texas and used the 300 AX with the 240 gr SMK to take three head of game. This was a pretty good test. It was hot down there so I toned her down a bit and used Retumbo for powder because its more stable in a wider range of temps. THe load produced 3130 fps which was extremely comfortable. For those that like energy numbers, thats over 5200 ft/lbs of muzzle energy from a very mild load pressure wise. First test was on a big corsican ram at 655 yards. THe shot was a bit far back, impacting at the back of the lungs and a bit high, in the middle of the top third of the back. This can be a bad area to hit a big game animal if your bullet does not expand well which was one of my concerns using this bullet. The ram ran 25 yards and fell over dead!!! Second test, a big bodied texas dall ram at 820 yards. This was getting out there where it would test the bullets expansion ability with lower velocity. The shot was a difficult one, severe angling away from us. The bullet impacted just ahead of the right ham and exited just off center to the right on the rams neck, penetrating a good 25" at least. The exit wound was roughly 2" across so there was obviously good expansion still. The third test was certainly not long range, around 120 yards is all on a big axis buck. Full penetration even at this close range was not a problem, there was a huge exit wound however but with this much power at this close range in a relatively thin skinned critter, that is to be expected. After that hunt, I took some potential customers out to do some long range shooting. They all shot the 300 AX that I took down south. Those that shot it at the 720 yard gong easily rang steel consistantly. Several shot at a water filled milk jug at 940 yards but we thought no one hit it but dirt flew so close to the jug for each shot it was hard to complain as all three shots would have easily killed even a yote size critter. When we went to pick up the targets however, the jug was nearly empty of water and there were three bullet holes in the jug, 30 cal in and 30 cal out...... Had I not witnessed what I did on Oklahoma and Texas, I probably would not have used this bullet on big game but I know they expand well on game and they shoot great as well. They are just overly heavy for what you get in BC. Hopefully someone gets this figured out and gets us a lighter weight bullet with a high BC that will consistantly expand on big game and not cost $1.50 to $2.00 each so we can go out and practice a bit without breaking the bank. [/QUOTE]
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