Trying to seat just off the lands


PDA






sean eady
March 19, 2013, 06:05 PM
So I am trying out neck sizing my once fired brass and seating just off the lands of my barrel. I adjusted the neck tension just enough to hold this bullet and chambered it. This is what came out. These are the bulk Hornady 150gn bullets (cheap I know) in Lapua brass being fired from an SPR A5M. My question is should I go to a bullet that does not have a cannelure or is it going to be ok seating these this far back? I am not crimping the rounds.

http://i239.photobucket.com/albums/ff61/seaneady/DECA5E13-D248-4A25-98BF-97216587AF97-413-00000020898EC27A_zps342d7275.jpg

If you enjoyed reading about "Trying to seat just off the lands" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
beatledog7
March 19, 2013, 06:29 PM
As long as you have done the chamber/lands test a few times and get consistent results, and the resulting round will fit in the magazine and feed, the cannelure will not matter.

rcmodel
March 19, 2013, 06:29 PM
Should be fine if they aren't too long to fit in the magazine.

rc

Dave P
March 19, 2013, 06:48 PM
Those are tremendous bullets, very accurate. And once they were cheap, but not anymore. I would be happy to have another 500 at 15 cents each!

xtarheel
March 19, 2013, 07:02 PM
If you really want to seat in a canalure, Corbin makes a device that does that for you. I bought one to put a canalure on 10mm bullets to load in my .38-40 handloads

kingmt
March 19, 2013, 07:20 PM
Use a marker to color the bullet to make sure you are really of the landes.

USSR
March 19, 2013, 07:43 PM
sean eady,

Here is my take on precision reloading for my FN SPR. First, get yourself better bullets; match bullets are a very critical part of a precision load. Second, get yourself a bullet comparator and Hornady O.A.L Gauge. If you want to load your bullets near the lands, keep them at least 0.010" off the lands. Reason? Bullets come off of several machines and ogive location will vary by up to 0.010". Having some bullets off the lands and some into the lands is not conducive to accuracy. Your brass is excellent by the way, the best there is. Good Luck.

Don

Walkalong
March 19, 2013, 08:17 PM
First, get yourself better bullets; match bullets are a very critical part of a precision loadThis.

sean eady
March 19, 2013, 09:47 PM
Thanks to all for their advise.

witchhunter
March 19, 2013, 10:30 PM
Once you find the length for your "at the lands" measure and subtract .010. Your rifle might like in the lands (jammed) or just off the lands. It also might like seating deeper, like .050 off the lands. They are all different. experiment, but if you seat the bullet in the lands, or just off the lands, watch for pressure spikes.

sean eady
March 19, 2013, 11:43 PM
Will do. What are everyone's thoughts on the Nosler Custom Comp 155 hpbt?

If you enjoyed reading about "Trying to seat just off the lands" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!