Lyman 223 Rem Rifle 2 Die Set (5.56-Mm) - $22 + FREE Shipping over $35

Lyman 223 Rem Rifle 2 Die Set (5.56-Mm) - $12.20 + FREE Shipping over $35

Just saw this in the November issue of American rifleman. Looks pretty cool, anyone have any feedback on them?

Title says it all! Except I meant to write 5.56mm lol. Kel-Tec SU16 Tavor Your turn.

Product Warning and Recall Notice: Winchester 5.56mm M855 62 grain | The Daily Caller

Winchester Product Warning and Recall Notice

LAKE CITY/TWIN CITIES 5.56mm M196 Tracer Rifle Ammunition 820 Rounds Reloadable Brass - $293.94 Shipped Hornady 223 Cal 52GR BTHP Steel Match Ammo Mfr. Part: HDY83262 20 rounds - $7.49 + Free Shipping over $99

Federal Cartridge 5.56mm, 55gr. 500 rounds - $143.49 + ~$12 S/H phone orders only, shipping is around $12

Federal XM855 5.56mm 62 gr. FMJ-Boat Tail Ball 1000 Round Case - $369.99 shipped

Federal Ammunition 5.56mm 55GR FMJ 1000rd Case - $300 + shipping

Federal AE XM193 5.56mm NATO 55gr FMJ 20 Rounds - $6.99 + $5 S/H over $99

Federal AE XM193 5.56mm NATO 55gr FMJ 20 Rounds - $6.99 + Free Shipping over $99

Federal AE XM193 5.56mm NATO 55gr FMJ 20 Rounds - $6.99 + Free Shipping over $99

FEDERAL 5.56mm XM193BK 1000 Rounds - $264.96 shipped

2 x 420-Round Ammo Can 5.56mm 62gr. (840 rounds total + 2 ammo cans) - $282.93 Shipped

FEDERAL 5.56mm XM193BK 1000 Rounds - $282.94 SHIPPED

FEDERAL 5.56mm XM193BK 1000 Rounds - $299.99 + Free Shipping

I just ran some velocity comparisons between a 14.5-inch barrel and a 20-inch barrel on AR platforms. I used an Oehler 35P chronograph with a 4-foot spacing. Each test included 10-rounds fired. Following are the results: M193, 55-grain ball (Lake City) 14.5” Average Velocity = 2,948 fps 20.0”...

Based on your experiences, what are the performance differences between Remington .223 and 5.56mm? I already know that you can safely fire .223 ammo out of a 5.56 rifle (but I heard with degraded accuracy) but shouldn't fire 5.56 ammo out of a a .223 rifle. Would you recommend I get an AR-15...