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Posted: 9/17/2008 5:41:20 AM EDT
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Anyone have one? I've found lots of info on the net, but looking for the actualy military data sheet to confirm. TM43-???? |
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everything... that data sheet.... powder, OAL, Vel, etc..... you know.. the data sheet. I don't want a "collected off the internet" version of the information. I am looking for a copy of the actual data sheet. From a military technical manual. Things have a way of getting distorted on the internets... |
Why? Whats the point? use a 77gr bullet and go for accuracy. MK262 is not that accurate it just happens to be fast but it is approaching the dangerous levels when it comes to pressure. you can work up something just as good that may be a few FPS slower but more accurate. Why beat the hell out of your rifle and brass for a few FPS? |
AGAIN - I AM NOT LOOKING TO COPY THE MK262. I am looking for the DATA SHEET! I am not looking to discuss accuracy or wear on the rifle. I am looking for a copy of the data sheet for the ammo. Not someone's thoughts on the Mk262.. i am looking for the DATA SHEET. Copy is being used to be put into a shadow box for a presentation for someone.... thank you. |
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Be patient, I'll look for the information tonight if someone else doesn't give you a copy. All my stuff is on different computers, one is 15 miles East and the other is 20 miles West. MK 262 is not included in the 1994 revision of TM 43-0001-27. Why? I have no idea, we're talking about a world class bureaucracy. Most of the posters that cruise through here requesting that information want to build clones down to the surplus powder and primer sealant. That's the reason for the commentary. You could have headed that off with more information about the reason you want the information, although I suppose it's nobody's business. I have no idea why MK 262 information is so difficult to uncover; there might be a reason, but I'll bet it doesn't hold much water. |
Yeah i'll bet it doesn't either. Thanks for the help! |
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I remeber the problem for a formula for this load came from the exact powder used to make M262 and M262A . Lots of pictures seem to indicate Tac in which I use 23.2 gr and the 77 MK or 77 nosler CC  I believe the name of the company (pardon my CRS) is ST.Pauls as contrated by major ammunition companys so an exact match would be difficult to find! Most ammo companys use non-canister grade powders not available to the public  Having excellent accuracy loaded close to max with 24.0 RL 15 or Varget using winchester or federal primers and winchester cases to come very close to TAC. Tac being easy to measure is my favorite. Now this info is at least 1 year old and more research may uncover a source for this powder  Somewhere there are threads showing pictures comparing TAC andPulled M262 although simular in weight and appearance are not the same powder. Maybe someone can find the thread. Velocity measurements are hard to establish because of the M4's short barrel being compared to the National Match Service rifles being a 20 inch barrel and the distance of the chronograph to the muzzle (I thing they use several yards from the muzzle) Hope this gives you some starting point  Remember the M262 while accurate is still an OTM bullet and is lacking in penetration, but still seems to be close to the ideal 556 round  Later - John |
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