223 Vs Sheet Metal

Here are a few of the things i have tested myself.

223 vs sheet metal.

This creates more opportunity for malfunctions due to carbon buildup and generally means a rifle shooting steel cased ammo will be less reliable in the long run although there are some exceptions i ll get to in a minute. By contrast 223 remington tends to produce lower chamber pressures between 52 000 and 55 000 psi going by saami specs. Extremely thin sheets are considered foil or leaf and pieces thicker than 6 mm 0 25 in are considered. Go to the scrap yard and get some 3 8 inch t1.

Today i am shooting some 9mm fmj and hp 223 fmj and polymer tip and also some 22lr round nose cci mini mags into a row of drywall treesablowin channel. In bot 1 and 14 all projectiles sailed through all walls. Steel belted tires are no match for 223 rounds either. It will go through the first 3 8 surface but not the second 3 8 surface.

Thus powder charge is the main difference between 5 56 vs 223 cartridges. Steel though cheaper is less malleable and creates a poorer seal and so generally runs dirtier across the board. Therefore 5 56mm nato ammo isn t safe for use in a rifle chambered for 223 remington but 223 is ok in 5 56. Thicknesses can vary significantly.

I somehow overlooked the insulated walls test. There was some keyholing from the 5 56mm which is indicative of energy loss but the only conclusive result was that they would all penetrate several walls. Dirty 223 brass cases. A fmj 223 round will penetrate a jeep grand cherokee brake rotor fired from ruger mini 14 at 100 yds.

At a 100 yards a 223 will go rite through 1 4 inch mild steel. It will hold up better.