User Panel
Posted: 9/19/2017 12:26:21 PM EDT
@bluefalcon tests Lake City M855 from an 11.5" 1/9 SBR.
Lake City M855 SBR Ballistic Gel Test |
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Serious question: is there any reason to favor M855 over M193?
Or any particular situation where you would, if not in general? |
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Why isn't Molon doing these videos?
I do like how the guy in the video looked right then left after his shot! |
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View Quote |
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As far as accuracy goes, I zeroed my ARX-100 using some of my 2005 stockpile of LC M855 last month at one of those digital Olympic zeroing ranges. Averaged around 1.5 MOA from a benchrest out of a 16" 1/7 CL CHF ARX barrel. Not bad at all for a non-match fighting round out of a non-match fighting rifle. That'll get the job done.
M855 gets too much hate, IMO. |
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Good vid, please keep doing more with more ammo / barrel combinations!
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Thanks for the vids....could you please shoot some various 556 rounds at 100 yards+ out of the SBR to see if the terminal effects change with distance and less velocity since they are already so close to the 2500fps magic number.....
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Nice video, I have been enjoying the series. You have put a lot of effort into these videos and it shows.
I would love to see a table of the various 5.56/.223 ammunition that you have tested with the neck, temp cavity, and any fragmentation notes along with the velocity and rifle used in the test all in one place. It may not be scientific enough to satisfy the haters, but it would be a damned useful resource to have as a real world reference. Keep up the good work! |
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I never tire of watching AR ballistic tests.
Thanks for taking the time to do these. |
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Thanks for the vids....could you please shoot some various 556 rounds at 100 yards+ out of the SBR to see if the terminal effects change with distance and less velocity since they are already so close to the 2500fps magic number..... View Quote |
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Nice video, I have been enjoying the series. You have put a lot of effort into these videos and it shows. I would love to see a table of the various 5.56/.223 ammunition that you have tested with the neck, temp cavity, and any fragmentation notes along with the velocity and rifle used in the test all in one place. It may not be scientific enough to satisfy the haters, but it would be a damned useful resource to have as a real world reference. Keep up the good work! View Quote |
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Thank you. Testing at longer distances is problematic. I have to lug 30lbs of gel downrange along with the table and cameras, then race back before it warms up and gets out of calibration. On top of that, I have to not only hit the face of the block in the right spot, but align the shot so that it passes through in the right place in three dimensions. I may simulate longer distance with a reduced charge if there is enough interest. View Quote I would be very interested to see how 855 and 193 do on gel in 100fps increments down to as slow as you're comfortable doing. Shouldn't be too much work |
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Thank you. Testing at longer distances is problematic. I have to lug 30lbs of gel downrange along with the table and cameras, then race back before it warms up and gets out of calibration. On top of that, I have to not only hit the face of the block in the right spot, but align the shot so that it passes through in the right place in three dimensions. I may simulate longer distance with a reduced charge if there is enough interest. View Quote Down loading will give you part of the equation but won't factor in the rate of fleet yaw at distance |
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That would be cool. I mean we're just talking about velocity at impact right? Should be easy enough to simulate and the results should be applicable. I would be very interested to see how 855 and 193 do on gel in 100fps increments down to as slow as you're comfortable doing. Shouldn't be too much work View Quote View All Quotes View All Quotes Quoted:
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Thank you. Testing at longer distances is problematic. I have to lug 30lbs of gel downrange along with the table and cameras, then race back before it warms up and gets out of calibration. On top of that, I have to not only hit the face of the block in the right spot, but align the shot so that it passes through in the right place in three dimensions. I may simulate longer distance with a reduced charge if there is enough interest. I would be very interested to see how 855 and 193 do on gel in 100fps increments down to as slow as you're comfortable doing. Shouldn't be too much work |
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Serious question: is there any reason to favor M855 over M193? Or any particular situation where you would, if not in general? View Quote |
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I crack up at the hate it gets. I guess all those dead people from m855 didn't get the memo that it sucks.
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Paul Howe, who has killed a lot of folks for this country, doesn't think much of it.
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As always.. Thank You BlueFaclon.
I enjoy these videos, the M855 bullet is a decent inexpensive round. |
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Great video, thanks.
As others have said, would love to see gel performance at a little longer range so the velocity is lower. |
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I like how people will argue that it doesn't kill people, like the US Military picked a totally ineffective round for use on people.
I've always wondered about the wound channel coming out of my SBR, looks like it's pretty good. :D |
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@bluefalcon tests Lake City M855 from an 11.5" 1/9 SBR. https://www.youtube.com/watch?v=mOJdv38Fypg View Quote I would have preferred the shorter barrels that he has done tests with before. Also, the silencer increases velocity, so that's kind of counter productive to keep on there for the nature of the test. |
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I would have preferred the shorter barrels that he has done tests with before. Also, the silencer increases velocity, so that's kind of counter productive to keep on there for the nature of the test. View Quote |
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Thanks for the vids....could you please shoot some various 556 rounds at 100 yards+ out of the SBR to see if the terminal effects change with distance and less velocity since they are already so close to the 2500fps magic number..... View Quote Because thats how you get shot up chronographs..... |
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So would these results point to M855 is to some degree less velocity dependent than XM193?
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Makes me want to have a 50 yard 556 rifle. Get a 1:12 twist barrel and shoot m855 out of it and keyhole my "soft targets"
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Well--is the lower velocity limit for fragmentation with M193 2700 feet per second, or 2500?
I have seen people interpret this chart as meaning "M193 will fragment reliably in soft tissue down to 2700 f.p.s. and sometimes but not 100% of the time down to 2500 f.p.s., below which it yaws but does not fragment in tissue." At least for the specific lot of M193 that was tested to produce those results. I will guess that jacket thickness, jacket material (copper vs. copper washed mild steel), cannelure depth, and so on, have varied a bit from plant to plant over the past fifty years. That's even before we start talking about M193-ish ammunition produced outside the US. I'd ask the same question about the heavy OTM type bullets. One of the charts on this page appears to say that the 77gr Nosler and similar bullets can fragment in ballistic gelatin at velocities below 2100 f.p.s., but the chart above says 2300. |
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I would have preferred the shorter barrels that he has done tests with before. Also, the silencer increases velocity, so that's kind of counter productive to keep on there for the nature of the test. View Quote View All Quotes View All Quotes Quoted:
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@bluefalcon tests Lake City M855 from an 11.5" 1/9 SBR. https://www.youtube.com/watch?v=mOJdv38Fypg I would have preferred the shorter barrels that he has done tests with before. Also, the silencer increases velocity, so that's kind of counter productive to keep on there for the nature of the test. |
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