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Goosic
Senior Member Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 8792 |
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My information came from a 1968 Norma reloading manual. The pressures were taken from their in house crusher gun with a 1-10" twist. Lyman had a similar example as well. A Lake City article from 1982 showed their chronographed LR,"long range" round with a FPS of 2486 and CUP of 44,200.
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britrifles
Senior Member Joined: February 03 2018 Location: Atlanta, GA Status: Offline Points: 6539 |
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Zed, I’ve got two of these CA 7.62 barrels, I should be able to provide some indication of the chamber dimensions by comparing fired brass with NATO cartridges, and also with published maximum .308 case dimensions. I’ve also got a case headspace gage that I will check fired cases with. The best way would be to make a chamber cast and then measure. The chambers are certainly not “large” such as found in MGs, but not likely “match” tight chambers either. I have F/L sized .308 brass fired from another rifle with regular .308 dies and the cases chambered fine in both my 7.62 barreled No. 4s. |
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Zed
Special Member Donating Member Joined: May 01 2012 Location: France Status: Offline Points: 5585 |
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Thanks for the replies guys. I am hoping to get some time to refine my loads on the L39A1. I have some GGG 7.62NATO surplus Lithuanian ammo to test against. I will chrono it and compare to my loads.
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It's nice to be important, but it's more important to be nice!
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britrifles
Senior Member Joined: February 03 2018 Location: Atlanta, GA Status: Offline Points: 6539 |
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I’m not familiar with the L39, does it have the heavy 4 lb barrel or it is it a standard No. 4 service weight barrel (2 lbs)?
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Zed
Special Member Donating Member Joined: May 01 2012 Location: France Status: Offline Points: 5585 |
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The L39A1 has the hammer forged heavy barrel and is similar to the L42A1 sniper rifle. The advantage of the L39 is that it costs about less than a quarter of the price of the sniper rifle. They were built on No4Mk2's so have the hung trigger; where as the L42's were modified from No4 Mk1T Sniper rifles.
Seen here with the No8 .22 and No1MkIII* |
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FrozenND
Groupie Joined: October 12 2018 Location: Fargo ND Status: Offline Points: 52 |
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Very interesting info from all. I have both LC M118 and Fed Match 168 to try, but based on everyone has written that I better hand load some ammo. Its going to be Memorial Weekend before I can try it out. Thinking on 40.5 of varget and a 168MK.
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NJ
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