308kiwi Posted October 8, 2017 Report Posted October 8, 2017 (edited) A 243 Win upper has been in the pipeline for a while, at last I've finally got all the bit's together. Aero M5E1 upper & bolt group, BAT Machine 308 barrel extension, Syrac adjustable gas block, Barrel is a 1:10 6mm that I salvaged from a re-barrel on an F class bolt rifle, guy I did the work for said "it's had 300 rounds through it, it's toast", OK I said, I'll get rid of it for you Turning and threading the tenon for the barrel extension... Chambering and headspacing.... Made the forend from some 56mm carbon fibre tube, this stuff is hard on cutters, 3 x 8mm carbide cutters later... Had to machine up a spacer to adapt the carbon tube to the upper... Time to load up some rounds and see what it'll do... 95gr RBTHP's that a friend here hand swages from Berger jackets Not so sure this barrel is "toast" just yet :-) Pretty happy with how it turned out..on the bench with it's (possibly now redundant) 308 upper beside it. Edited October 8, 2017 by 308kiwi
98Z5V Posted October 8, 2017 Report Posted October 8, 2017 Your skills amaze me, man. That is awesome work.
jtallen83 Posted October 8, 2017 Report Posted October 8, 2017 18 hours ago, 308kiwi said: Had to machine up a spacer to adapt the carbon tube to the upper... What do you have going on with the gas tube as it enters the receiver? Never seen anything like that, something to dissipate heat?
98Z5V Posted October 9, 2017 Report Posted October 9, 2017 52 minutes ago, jtallen83 said: What do you have going on with the gas tube as it enters the receiver? Never seen anything like that, something to dissipate heat? Aero M5E1 setup - that's the way they make them, brother.
jtallen83 Posted October 9, 2017 Report Posted October 9, 2017 11 minutes ago, 98Z5V said: Aero M5E1 setup - that's the way they make them, brother. Need to take a closer look, local gun pusher has a set, I avoided picking it up knowing how hard it is to put stuff back on the shelf........
unforgiven Posted October 9, 2017 Report Posted October 9, 2017 3 hours ago, 98Z5V said: Your skills amaze me, man. That is awesome work. Hell ya. Wow
308kiwi Posted October 9, 2017 Author Report Posted October 9, 2017 6 hours ago, jtallen83 said: What do you have going on with the gas tube as it enters the receiver? Never seen anything like that, something to dissipate heat? Cheers. Yeah, not sure of the exact purpose of the 'slots', possibly for cooling of the gas tube, being in an enclosed space, not sure, but yeah like 98Z5V said, that's the way it came, the 'slots' are actually squared off at the top where they are designed to locate in the Aero forend, I mounted the upper in the lathe and radiused them to the same ID as the carbon tube, which is why they look shiny in the pic. As soon as we get home from holiday it's getting suppressed
308kiwi Posted October 9, 2017 Author Report Posted October 9, 2017 FWIW, dunno if you guys want to add this to the "gas port dia thread", AR 243, 20" barrel, Rifle gas system, gas port dia .095" Works a treat
survivalshop Posted October 9, 2017 Report Posted October 9, 2017 (edited) copied it to that thread , thanks for the info . Edited October 9, 2017 by survivalshop
ARTrooper Posted October 9, 2017 Report Posted October 9, 2017 15 hours ago, 98Z5V said: Your skills amaze me, man. That is awesome work. Yeah I was thinking the same, that is far more than just assembling a rifle... and with amazing precision. props with a bit of jealousy.
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