I have used the Al. Blazer, without problem. Do not know what an S-Load is though.Has anyone tried using the Blazer aluminum cased S-Loads in an HK USC or USC/UMP conversion? I'm waiting on my rifle from HDPS and want to stock up on ammo that is known to work. Currently this is the best deal for 45ACP ammo I've been able to find.
Back when the ammo came out, it didn't extract well out of 9mm gun with fluted chambers.
To put it as simple as possible, They would crack and get stuck. Gun snobs made a big fuss over cheap ammo acting like, cheap ammo!
1) its ok to shoot cheap ammo at Campbell's cans. if it jams, use your steel barrel cleaning rod to pop it out, and go back to enjoy shooting.
2) cheap aluminum ammo is really frustrating in full autos. its worth the extra buck to shoot S&B or Win White box.
3) cheap aluminum ammo in >$1500 HK shouldn't be your first choice for a home protection load. I recommend premium ammo with nickel coated cases. These resist corrosion and feed/extract with greater reliability.
CCI Blazer runs fine in all my 9mm handguns and HK 94 A3. Sticks, curved or beta c-mag. It leaves a fine dust, but not as messy as the Russian stuff.
Im not an expert, this is just my experience.
HK Dealer 1998-2007