75gr bergers in mag.

[ig25]

zip the front out of a PMAG with a dremel, and watch this video and you'll see the lil tiny spot on the underside of the UPPER that needs a tweak. (at 5:30)

I've been doing it for my WSSM AR for years now.
The WSSM "VLD" PMAG - YouTube

thanks for the info c_bass

 

[rdsii64]

Have you considered the 70g TTSX? I followed this thread when you first asked the question but you got advice from Kevin and he knows more than most. I have been running the 70g TTSX in my AR for hunting for about 8 months now. Very accurate bullet and does a number on game.

I have been thinking about the 62 grain TTSX. How well has the 70 worked for you.

 

[battlestick]

So you make a VLD mag and can load to 2.37, how much performance gain does that give you, any idea?

Say 2 more grains of powder case capacity? 100-150 fps? Can you laod an 80 Gr 223 AMAX?

Basically, will it get me much more than I have now, or is it only a marginal gain?

If I can only load a 75 Gr AMAX to a lower velocity, it won't get me any more than a 75 BHTP. Now, If I can load a 75 Gr AMAX and still push 2700 fps from it, we are talking.