Lower than the original Winchester OSM 147gr Q-whatever cartridge we began the program with? That stuff had practically NO discernible muzzle flash, unless it was absolutely dark (i.e., no flashlights on).
If you'll recall, that ammo left little yellow particles all over the internals, part of the firing residue. It was freaking people out, until Rick called Winchester and was told it was anti-flash 'additives', don't worry about it.
What I remember most about dim light shooting was when we couldn't get the OSM load anymore, went to first generation Hydra-Shoks, and man… what a difference. But it still wasn't bad enough to change ammo again over. And, in fact, now that I think about it I don't remember any other significant problems with excessive 9mm muzzle flash. However, I never used any of those Remington GS rounds when they were the issue item. IMO they were loaded way too long (and still are), and the few I shot in your G34 seemed rather obnoxious, recoil-wise. So I continued to carry Hydra-Shoks, since I had a few stock-piled…
These days, its HST all the way for me. But you're right, I haven't shot any of the 124gr+P in dim light; or the 230gr +P, for that matter. That's easily rectified; I just might do it tonight after Baker closes up.
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