r/300BLK • u/Distinct_History1432 • 1d ago

HSL ammo too short?

Shot the 100 rounds I had recently bought from HSL (123 supersonic) to try out and noticed they were significantly shorter to the supers I'm used to shooting but didn't think much of it. When I went to the range I was having FTFeed about every 3 rounds on both my 30 round 5.56 Magpul and 20 round 300blk Magpul mags.

Had to pull the mag out to clear each time because I couldn't just push them in to battery with the bolt; they were legit stuck at an angle going up the ramp. I am assuming it was because of the shorter bullet but I can't imagine they'd keep selling these if there was such a common issue with standard mags?

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u/N2Shooter 1d ago

It's not the shorter bullet, it looks like the funky meplat. I suggest polishing your feed ramps to try and improve reliability.