jayhkr Posted February 12, 2014 Share Posted February 12, 2014 I have a few pieces of brass I picked up from the range that has this ring around it. Just curious to what it is and what the purpose of it is/was? Link to comment Share on other sites More sharing options...
ghost21 Posted February 12, 2014 Share Posted February 12, 2014 It called a cannelure, groove. Not really sure what its there for, but you will find it a lot on Remington brass. Link to comment Share on other sites More sharing options...
jayhkr Posted February 12, 2014 Author Share Posted February 12, 2014 Ok, thank you. Link to comment Share on other sites More sharing options...
Youngeyes Posted February 12, 2014 Share Posted February 12, 2014 They are there to help support the original bullet. Link to comment Share on other sites More sharing options...
ghost21 Posted February 12, 2014 Share Posted February 12, 2014 I thought as much, just for support, But wasn't sure! Link to comment Share on other sites More sharing options...
Justsomeguy Posted February 13, 2014 Share Posted February 13, 2014 Yes... it's there to prevent "setback" and the resulting high pressure that could occur. Link to comment Share on other sites More sharing options...
BSeevers Posted February 13, 2014 Share Posted February 13, 2014 I always understood it was a military thing for sub guns preventing setback.. Open bolt slamming on rounds Link to comment Share on other sites More sharing options...
thermobollocks Posted February 13, 2014 Share Posted February 13, 2014 It's also helpful for anyone who might chamber/unload the same round over and over again. Link to comment Share on other sites More sharing options...
johnsons1480 Posted February 13, 2014 Share Posted February 13, 2014 I have been wondering this for a long time, and now I know Link to comment Share on other sites More sharing options...
RammerJammer Posted February 13, 2014 Share Posted February 13, 2014 I thought it was the full line for powder. I guess I have to start weighing charges now... Link to comment Share on other sites More sharing options...
theblacknight Posted February 14, 2014 Share Posted February 14, 2014 You will find it this ammo, IF you can find it LOL http://media.midwayusa.com/productimages/880x660/Primary/174/174101.jpg Link to comment Share on other sites More sharing options...
JimmyZip Posted February 14, 2014 Share Posted February 14, 2014 I thought it was the full line for powder. I guess I have to start weighing charges now... SO wrong. Link to comment Share on other sites More sharing options...
Steve RA Posted February 14, 2014 Share Posted February 14, 2014 It may have been a facetious statement, who knows ??? Link to comment Share on other sites More sharing options...
Systemstooge Posted February 14, 2014 Share Posted February 14, 2014 I thought it was the full line for powder. I guess I have to start weighing charges now... SO wrong. I LOL'd Link to comment Share on other sites More sharing options...
JohnnyD Posted February 14, 2014 Share Posted February 14, 2014 I've really only ran into them on Aquila and Federal cases. I'm sure there are a variety of brands that do this though on certain runs of brass. Link to comment Share on other sites More sharing options...
JimmyZip Posted February 14, 2014 Share Posted February 14, 2014 It may have been a facetious statement, who knows ??? I thought it was the full line for powder. I guess I have to start weighing charges now... SO wrong. I LOL'd Definitely a facetious statement, but just too funny. So wrong, another way of saying that it was a twisted and funny statement. Link to comment Share on other sites More sharing options...
Therealkoop Posted February 14, 2014 Share Posted February 14, 2014 I bought a few thousand rounds of Aguila 124g 9mm and they had this cannalure. I load it up and shoot it just like anything else. Link to comment Share on other sites More sharing options...
Graham Smith Posted February 14, 2014 Share Posted February 14, 2014 I thought it was the full line for powder. I guess I have to start weighing charges now... Beat me to it. Link to comment Share on other sites More sharing options...
grapemeister Posted February 15, 2014 Share Posted February 15, 2014 Yeah, me too. Damn it. Link to comment Share on other sites More sharing options...
tacticalCOWBOY Posted April 25, 2014 Share Posted April 25, 2014 Good info thanks Link to comment Share on other sites More sharing options...
Rick88 Posted April 25, 2014 Share Posted April 25, 2014 I really like this brass, went to the range to practice one day and someone left a huge pile of it all in one spot. I normally dont pick up range brass but this was all once fired new stuff all head stamped Aquila no one was around to claim it so I had to pick it up. Doing my part to keep the range clean :-) but anyway after a short time cleaning loaded some up for major 9 and they went through the press slick as snot sized easy deprimed easy reprimed easy, now I wish I had more... Link to comment Share on other sites More sharing options...
kevin c Posted April 25, 2014 Share Posted April 25, 2014 I've seen Aquila brass with and without the cannelure. With the particular bullet I use (147 Precision) at the OAL I like (1.130) I would get a nasty bulge right at the cannelure line, often to the point where the round would not case guage. It really looked that the case wall was giving way there. No problems with the noncannelured Aquila cases, or with Federal/other brand cannelured brass. I check for and scrap the Aquila now. Link to comment Share on other sites More sharing options...
RDA Posted April 25, 2014 Share Posted April 25, 2014 I've seen Aquila brass with and without the cannelure. With the particular bullet I use (147 Precision) at the OAL I like (1.130) I would get a nasty bulge right at the cannelure line, often to the point where the round would not case guage. It really looked that the case wall was giving way there. No problems with the noncannelured Aquila cases, or with Federal/other brand cannelured brass. I check for and scrap the Aquila now. Were you seating the base of the bullet beyond the cannelure (therefore forcing the wall of the case out)? That would explain your issue if so. Link to comment Share on other sites More sharing options...
Grump Posted April 25, 2014 Share Posted April 25, 2014 More often, the *case* cannelure is cosmetic, not deep enough to help resist bullet setback, and sometimes not even near the base of the seated bullet. Used to visually identify different types of loads by the manufacturers. Years ago, I think it was Remington put one of those marks about .20 inch from the case mouth on their .38 Special full wadcutters. Regardless of which load, there were others with the cannelure well back from where the bullet base lay. In college, I could pick out different types of .22 match ammo that was loose in the bottom of the can that way, but I don't remember any more which ones had the marks where. In both CF and RF rounds, I have seen TWO cannelures. Definitely for identification. In a factory-loaded, round, look how DEEP the cannelure is. Only the deep ones are used to resist bullet setback. Link to comment Share on other sites More sharing options...
danman00 Posted May 2, 2014 Share Posted May 2, 2014 I've seen Aquila brass with and without the cannelure. With the particular bullet I use (147 Precision) at the OAL I like (1.130) I would get a nasty bulge right at the cannelure line, often to the point where the round would not case guage. It really looked that the case wall was giving way there. No problems with the noncannelured Aquila cases, or with Federal/other brand cannelured brass. I check for and scrap the Aquila now. Ive had these as well especailly with 147gr. Link to comment Share on other sites More sharing options...
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