Quote Originally Posted by mark5pt56 View Post
I've been running this (130 Speer #2007) from two BO pistols, shoots great, 100% reliability from either Magpul or Lancers. Seated to cannelure with a Lee FCD and using H110.

http://www.speer-bullets.com/ballist...ail.aspx?id=85
Those short bullets can run well, and run better in Pmag's than GI. But they don't always. Remember the original Remington UMC supersonic with the short bullet? It was basically a .308 sized AK bullet. Reliability was fine if you loaded and fired it, but went to shit if you loaded the mags and bounced them around in mag pouches for a while. Remington had to pull all that ammo back and spend time and money making a longer hollow tip bullet design.

I'm not claiming this 150gr is the best or lightest bonded load possible, just that there are significant design constraints involved in making 300 BLK ammo the right way.

All of the proper 300 BLK lighter bullet designs have a large hollow tip or are made of all copper. Fusion bullets can't be made that way.