Biammo Posted May 13, 2014 Share Posted May 13, 2014 I was told that if you seat a bullet closer to the rifling in the barrel then you will have better accuracy. And yet on the other hand got blown out of the water by a supposed expert that I am playing with fire because the bullet is not seated down to the cannelure. Which is it? Thanks. Link to comment Share on other sites More sharing options...
Jakobi Posted May 13, 2014 Share Posted May 13, 2014 Cannelures are for convienence. You're not hurting anything by not seating to the cannelure. -Jake Link to comment Share on other sites More sharing options...
jrb06 Posted May 13, 2014 Share Posted May 13, 2014 Just remember that the term expert means: ex is a has been and spert is water under pressure Link to comment Share on other sites More sharing options...
bobonit Posted May 13, 2014 Share Posted May 13, 2014 Some rifles shoot better groups when the bullets are seated close to the lands, some don't. There is no danger in not using the cannelure, just use what shoots better in your rifle. Link to comment Share on other sites More sharing options...
deadarrow Posted May 13, 2014 Share Posted May 13, 2014 I've been seating mine like that for years now. Like you I was leery but no problems. Just make sure they fit in the mag tho. Link to comment Share on other sites More sharing options...
Biammo Posted May 13, 2014 Author Share Posted May 13, 2014 Thank your for confirming. I have shot these loads successfully with know issues. This is the message I got from some random guy: "Shiny doesn't mean high quality! Why are the bullets not seated to the cannular? What barrel length gets 3300 something fps. Thats dangerous out of an AR-15." Link to comment Share on other sites More sharing options...
Youngeyes Posted May 13, 2014 Share Posted May 13, 2014 I don't use bullets with a cannelure. No issues. I set the OAL for my gun not by a mark from the manufacturer. Link to comment Share on other sites More sharing options...
RDA Posted May 14, 2014 Share Posted May 14, 2014 Thank your for confirming. I have shot these loads successfully with know issues. This is the message I got from some random guy: "Shiny doesn't mean high quality! Why are the bullets not seated to the cannular? What barrel length gets 3300 something fps. Thats dangerous out of an AR-15." Is random guy the expert? There are acceptable 223 Remington loads close to 3,900 fps within 55,000 psi and I am certain there are 5.56 loads at 4,000 fps that can be shot out of a 16" AR15 without consulting any guides. Link to comment Share on other sites More sharing options...
Chills1994 Posted May 14, 2014 Share Posted May 14, 2014 I mistakenly trimmed a bunch of brass to 1.73, and using Montana Gold's 55 grainers with their cannelure (which actually was all over the place) I didn't have any problems. Then the next time I loaded them, I set the OAL to whatever and the cannelure was definitely exposed then. Just an FYI... The RCBS X die instructions say to trim 20 thousandths under max length... Not 20 thou under the trim to length. Surprisingly enough, I didn't see a change in accuracy.... Weird? Link to comment Share on other sites More sharing options...
RPatton Posted May 27, 2014 Share Posted May 27, 2014 If for some reason you wanted to add a crimp then that is what the cannelure is for. OAL is up to you. Just remember that bullets touching the lands will cause pressure to spike. Link to comment Share on other sites More sharing options...
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