steven765 Posted March 23, 2011 Posted March 23, 2011 So I was at the range with some friends 3 weeks ago. Temp was about 12f. Anyway the bolt was occasionally getting stuck 95% recoiled. Just a tap on the handle and it'd continue forward and grab the shell fine. Time to switch to 0w-30 for the winters? But seriously is there an oil formulated for colder temps as such? Quote
steven765 Posted March 23, 2011 Author Posted March 23, 2011 Winchester universal's 1,1/8oz 2.75 shells, I believe. I also had a box of 1oz remmi's. Which i forgot about until now. I bet those were the cause. I wanted to see how they fired. In the beginning nothing phased it. So I forgot about them, and the colder it got the more shells mixed as I wasn't taking my gloves off and just dumping boxes. I bet it iced up a bit from the heat of the earlier rounds and at those temps it just wasn't enough to cycle it later. File this one under oops. Quote
StrangerDanger Posted March 23, 2011 Posted March 23, 2011 What is the round count on the weapon? Newer M4's should be broken in with a 100 - 200 high brass rounds. The cold weather could affect the cyclic rate depending on what oils you're using. I couldn't recommend a cold weather lube since I'm from Arizona... I use this oil. It claims it's good to -100 degrees. http://stores.homestead.com/Laruetactical/Detail.bok?no=128 Quote
steven765 Posted March 23, 2011 Author Posted March 23, 2011 Hmm never heard about the break in comment before. Mine are all low brass. Do you have any links to info behind the break in theory? I'm cautious because of the 'break in' people ( low end manufacturer's) try to push on AR's to lower the useful life of the barrel, and finish cleaning it out for them. I assume that's not as big of a deal with a shotgun? Quote
sonny27 Posted March 23, 2011 Posted March 23, 2011 I was told the m4 doesn't like low brass... High brass only Quote
heckler&kochp2000 Posted March 23, 2011 Posted March 23, 2011 Use strong EQ Dram it's not really a bird gun it likes to blow heavy wads . But then again what the heck do I know! Quote
steven765 Posted March 23, 2011 Author Posted March 23, 2011 other than that one incident it's had no problem with low brass so far (135 rounds) brand new. It will even cycle the 2" shells. Those trip up about 1 in 10, but I expected that. Quote
StrangerDanger Posted March 24, 2011 Posted March 24, 2011 Most of the initial break in theories come from this site. With proper lubrication, it should run 99% with low brass value pack crap. I've fed mine about 9000 rounds of it. Quote
Wcvose Posted April 19, 2011 Posted April 19, 2011 I compete in 3gun matches and recently used my new m3 it seemed to have a hard time cycling low brass birdshot. Is this normal can the gun be adjusted ? Quote
kingarmory Posted May 7, 2011 Posted May 7, 2011 Any new gun is going to have a break-in period before it will run smoothly (and eat lower power loads). The surfaces have to smooth out and the springs have to take a set. As far as ammo goes though, use Federal bulk-pak, its a little hotter and runs in most semi-autos very well. Winchester ammo is usually a bit doggy in gas-operated semiautos. Quote
dark knight Posted May 7, 2011 Posted May 7, 2011 I had this problem with my VERY first M4. One of the ones with the US flag on it. I just shot my new one AND IT WAS GREAT no FTF Quote
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