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Post by Deleted on Aug 20, 2015 16:49:27 GMT -5
Kash? That's not even MOA if you count all three! You know who you're talking to here right?
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Post by kash913 on Aug 20, 2015 17:12:41 GMT -5
Kash? That's not even MOA if you count all three! You know who you're talking to here right? You're right what was I thinking? ??
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Post by Deleted on Aug 20, 2015 18:56:45 GMT -5
Let me clear up something here.. The chamber in my 416 is cut to hold 125 grains of 4350. We wanted to try a 110 grains of 3031 but to be sure it was safe I loaded it and removed the plug to see where the bullet was in relationship to the chamber before I fired it off.. Now after looking at it I decided it would have been perfectly safe to have shot it but I was getting late and as you know all the powder stuck to the threads in the barrel and I did not have an air compressor to blow it out so it was quitting time for the day.. The 110 grain load and the 300 barns will be tested some other day... Thanks for the tip on making a duplicate powder chamber for checking charge weights.. I'll be making one for my 416 soon... Jeff myers, I think you are a little low on the Quickload calc. I figured 81,542 psi for a 300 grain bullet .416 bullet with 110 grains of IMR 3031 powder. Anyways... it's between 77,000 and 81,000 psi... give or take a little... But it's only ~ 68,800 psi with 125 grains of H4350 and a 350 grain bullet....that what he posted before as a bullet and load he shot. And why are the LRM guys using huge payloads of very fast burning powders in the smaller caliber guns?... because they have to, to get them to work efficiently.... As for the powder chamber test: 110 grains of IMR3031 is ~ the same volume as 115.1 grains of H4350. If I did the math correctly...
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Post by Deleted on Aug 20, 2015 19:06:52 GMT -5
Care to share a combo that will make 4100fps in a 32" 416?
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Post by Deleted on Aug 20, 2015 19:17:09 GMT -5
Care to share a combo that will make 4100fps in a 32" 416? Bullet weight and powder type? With a LRM ignition system... I'm guessing a crazy amount of super fast burning powder, with a PSI North of 75,000 psi, (OK, my guess is the PSI is way higher than that)
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Post by Deleted on Aug 20, 2015 19:22:18 GMT -5
So here is my question.....Why would we be going to a smaller caliber and then looking to up the bullet weight? I was under the impression when some guys went to the .40's that their intention was to shoot lighter bullets (maybe a little faster than from a .45, but reduce recoil. I see here a bullet weight up to 350 gr.? Would it be the longer bullet "might" be more accurate? Hmmmmmmm? The longer bullet and weight would also mean a faster twist which relates to more torque? I dunno, maybe I'm missing something? Are chambers being put in these rifles? I saw at the Challenge where Jeff put a bullet down (I think) a .416 and it went too far and dropped below the shoulder? Not good. Sounds like load and bullet really have to be coordinated so that does not happen. Could be just we are looking for the Holy Grail? Have fun........carefully! Richard Because I don't want to shoot a 3 MOA group, at 100 yards, with a .45 and a 29 cent bullet.
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Post by Deleted on Aug 20, 2015 19:30:31 GMT -5
So here is my question.....Why would we be going to a smaller caliber and then looking to up the bullet weight? I was under the impression when some guys went to the .40's that their intention was to shoot lighter bullets (maybe a little faster than from a .45, but reduce recoil. I see here a bullet weight up to 350 gr.? Would it be the longer bullet "might" be more accurate? Hmmmmmmm? The longer bullet and weight would also mean a faster twist which relates to more torque? I dunno, maybe I'm missing something? Are chambers being put in these rifles? I saw at the Challenge where Jeff put a bullet down (I think) a .416 and it went too far and dropped below the shoulder? Not good. Sounds like load and bullet really have to be coordinated so that does not happen. Could be just we are looking for the Holy Grail? Have fun........carefully! Richard Because I don't want to shoot a 3 MOA group, at 100 yards, with a .45 and a 29 cent bullet. ROLMFAO
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Post by Deleted on Aug 20, 2015 19:37:12 GMT -5
I heard 200gr bullet and 140gr powder but it can't be confirmed. I used those numbers and found that only h4350 will get you to 4100 at ~90,000psi. Seems like a crappy thing to do to 25 friends standing inside the blast radius. Over and over and over again.....
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Post by Deleted on Aug 20, 2015 20:09:01 GMT -5
Good shooting as usual.!! Still don't why your shooting a sub caliber. They won't shoot. Looks as your generic 40 cal SST's held their own at 300 yards, October 17 we will fling some of those and some 240 CEB's at 300 and 400 yards and see how we do. Along with some 416 and 375 cal guns, should be fun and interesting.
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Post by hankinsrfls on Aug 20, 2015 20:32:02 GMT -5
I heard 200gr bullet and 140gr powder but it can't be confirmed. I used those numbers and found that only h4350 will get you to 4100 at ~90,000psi. Seems like a crappy thing to do to 25 friends standing inside the blast radius. Over and over and over again..... Like I said.. This was a purpose built rifle and I'd say I was a little over your 90,000 psi guesstimate,, however,, everyone was behind me when I shot that load... Don't try it on you gun...
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Post by Deleted on Aug 20, 2015 20:39:32 GMT -5
Jeff I hope you value yourself enough to never pull the trigger on that load again.
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