The Down Range Forum

Member Section => Tactical Rifle & Carbine => Topic started by: Philip on February 03, 2012, 07:37:14 PM

Title: Defense rounds for my AR
Post by: Philip on February 03, 2012, 07:37:14 PM

I just read a great article in this months G&A that I was wondering a few things about.  I have only shot 55g rounds through my AR - plinking and varmit hunting.  The defense rounds from Winchester are 77g, should I be concerned about running a heavier round through my gun?  I won't be shooting this stuff very often but would like to put a few mags in just to make sure I can run it ok with no malfucntions and then keep them around for home defense.  Just looking for thoughts on the different bullet weight and anything else I should look out for.  Thanks for your time, I really enjoy this forum.  It has lots of good topics and great people. 

Respectfully,

Philip

Title: Re: Defense rounds for my AR
Post by: Big Frank on February 03, 2012, 07:41:10 PM

What twist is your rifling? I say just try them and see if your gun likes them.

Title: Re: Defense rounds for my AR
Post by: tombogan03884 on February 03, 2012, 08:22:08 PM

You can get SD ammo in lighter weights.

http://www.downrange.tv/forum/index.php?topic=18791.msg240678#msg240678

From TW's post:

5) Purchase 40 grain TAP (.223) for CQB work. It is a Polymer tipped spitzer boat tail, part #83256, ballistic coefficient =.200: This bullet offers high velocity even in shorter barreled weapons with reliable functioning in the AR15 weapon system. It also offers rapid expansion, high fragmentation and little retained weight. This round is intended primarily for situations where its' limited penetration, extreme fragmentation and reduced ricochet potential are desired."