98Z5V Posted March 9, 2022 Report Share Posted March 9, 2022 Here's another bit of information: https://taskandpurpose.com/gear-tech/762x51-vs-308-difference/ Any differing opinion should be taken up with the editors of Task & Purpose. Tell them that they're wrong. Quote Link to comment Share on other sites More sharing options...
PNMRED Posted March 11, 2022 Author Report Share Posted March 11, 2022 On 3/4/2022 at 8:10 PM, Armed Eye Doc said: I hope your back is improving. Post a picture of the feed ramps and chamber. It could be a tolerance stacking issue causing the misfeed. It could also be a magazine issue. Thank you for the kind words, i'm actually waiting for insurance so I can schedule surgery. I used to move furniture for a living for 13 years and have enjoyed recreational power lifting for about 18. Chickens finally coming home to roost. I'll get photos as soon as i'm able Quote Link to comment Share on other sites More sharing options...
PNMRED Posted March 11, 2022 Author Report Share Posted March 11, 2022 On 3/8/2022 at 7:03 PM, FALPhil said: You understand incorrectly. But, you are not alone. This myth has been perpetuated by people who have repeated what they have read in gun rags where zero research was done. SAAMI actually says that the two are interchangeable. You can check it on their website. Meanwhile, you can read some referenced research. Thank you for the info! Quote Link to comment Share on other sites More sharing options...
PNMRED Posted March 11, 2022 Author Report Share Posted March 11, 2022 On 3/8/2022 at 11:08 PM, 98Z5V said: Read this first before you want to pin that, for all the ages to come... https://sofrep.com/news/whats-difference-308-winchester-ammo-7-62-nato-not-think/ Will do! Quote Link to comment Share on other sites More sharing options...
PNMRED Posted July 21, 2022 Author Report Share Posted July 21, 2022 HEY OOOOOHHHHH! Apologize for taking forever to update but I was recovering from spinal surgery. Finally got the rifle running like a dream! Combination of factors, 1) EA1095 spring + opening up gas port. 2) The lower receiver I was using had the mag catch sitting .5mm lower than all my b other receivers. I after I was able to get the rifle to lockback consistently on an empty mag, I was then having trouble getting it to chamber a second round after firing. I initially thought it was too high of bolt speed since I opened gas port to max spec and the bolt would run over the subsequent round. SO I used an adjustable gas block to tweak but I couldn't get a setting where it would want to lock back on an empty mag AND cycle through a full mag. Finally pulled out the mitutoyo calipers and measured everything and sure enough the mag catch was lower. I swapped the lower for a noreen and it ran beautifully. Even swapped back to standard gas block and still runs great. Now after i got it running I swapped another upper onto it ( BA 18" rifle length barrel and Aero M5 upper) and it seems under gassed so I'm going to open that port up a bit Because I do know that its waaay under what max spec is purported to be. Thanks for the help everyone! Quote Link to comment Share on other sites More sharing options...
Armed Eye Doc Posted July 21, 2022 Report Share Posted July 21, 2022 4 hours ago, PNMRED said: HEY OOOOOHHHHH! Apologize for taking forever to update but I was recovering from spinal surgery. Finally got the rifle running like a dream! Combination of factors, 1) EA1095 spring + opening up gas port. 2) The lower receiver I was using had the mag catch sitting .5mm lower than all my b other receivers. I after I was able to get the rifle to lockback consistently on an empty mag, I was then having trouble getting it to chamber a second round after firing. I initially thought it was too high of bolt speed since I opened gas port to max spec and the bolt would run over the subsequent round. SO I used an adjustable gas block to tweak but I couldn't get a setting where it would want to lock back on an empty mag AND cycle through a full mag. Finally pulled out the mitutoyo calipers and measured everything and sure enough the mag catch was lower. I swapped the lower for a noreen and it ran beautifully. Even swapped back to standard gas block and still runs great. Now after i got it running I swapped another upper onto it ( BA 18" rifle length barrel and Aero M5 upper) and it seems under gassed so I'm going to open that port up a bit Because I do know that its waaay under what max spec is purported to be. Thanks for the help everyone! Glad you are doing better and that your rifle functions as well. Quote Link to comment Share on other sites More sharing options...
PNMRED Posted July 30, 2022 Author Report Share Posted July 30, 2022 On 7/21/2022 at 3:49 PM, Armed Eye Doc said: Glad you are doing better and that your rifle functions as well. Thank you! Definitely relieved on both fronts! Quote Link to comment Share on other sites More sharing options...
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