On Tuesday I was at the range trying to use Federal American Eagle 230gr .45GAP FMJ in my G39; however, I was getting so many failures to return to battery, that I gave up and switched to my G26 that fires everything I've ever fed it. Just eyeballing the rtb failures, I'd say the slide was about 3/8" short. I had no problems with Double Tap 185gr or 230gr .45 GAP HP's. Has anyone had similar experiences? If so, what was the solution? Thanks! ps I did a search with the terms "Federal Eagle G39" but found nothing.