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147 Coated bullets problems

Love both of my Dillon presses, I load 9mm on SDB and 45ACP on a 550. I just received some Precision moly coated bullets in 147gr. I loaded a few to test fire, I used 3.4gr Titegroup powder, Seller&Bellot primers, and an OAL of 1.103" (1.115"is recommended) Crimp is .3805". I went to the club to test these with a Glock 43. The fire nice, but they tumble and keyhole. Any suggestions? I always separate the brass, so i have consistency. Is this a crimp problem or a short barrel issue?

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