meh77gmc 386 Posted April 4, 2019 I am curious if it is possible to pull down factory ammo (ammo in question is Fed GMM 77grain in .223) and re-seat the bullets to change the distance to the lands in an AR that I will be hand feeding (not from a magazine). Or will the factory crimp give me problems? I don't have reloading equipment, but I have a friend that has it all. Are there problems or considerations I haven't thought of in this regard? This possible project will be used in a BHW 24" 1-in-8" tube. Thanks for allowing a noob question. Mike Quote Share this post Link to post Share on other sites
gshayd 3,435 Posted April 4, 2019 It has been a while since I reloaded. I would rather start with fresh components than jacking around with factory loaded ammo. Quote Share this post Link to post Share on other sites
TomJefferson 3,184 Posted April 4, 2019 You could try a vice mounted puller to pull it out some, higher than needed, then reset to length. Its whether it buys you anything I doubt, not whether it can be done. That type thing more often than not adds more variance than it fixes. Quote Share this post Link to post Share on other sites
andy2205 191 Posted April 4, 2019 Something to think about. If you pull the bullets out and re-seat them, you run the chance of changing the neck tension on the bullet. This possible change in neck tension might counteract any benefit you get from seating the bullets with a shorter jump to the lands. Quote Share this post Link to post Share on other sites
meh77gmc 386 Posted April 4, 2019 Ok. Scratch that experiment Quote Share this post Link to post Share on other sites
