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Old June 14, 2011, 11:03 AM   #1
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.380 projectiles in 9mm?

i dont know much about .380 but i saw somewhere its the same diameter as the 9mm .355, i found some cheap projectiles listed as 90gr 380 projectiles... can i load this in 9mm?
My Calibers- 9mm, .38spl, .357 mag, .45 acp, 30/06, 303 brit, 7.7 jap, 7.5 french.
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Old June 14, 2011, 11:06 AM   #2
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as long as they're .355 you can.
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Old June 14, 2011, 04:22 PM   #3
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If there is reliable load data for this particular bullet, it is ok.
Otherwise, you will be experimenting.
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Old June 14, 2011, 04:49 PM   #4
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Yes, as stated above, you can do that with the proper data. I've gone both ways - bullets meant for .380 in a 9mm and bullets for a 9mm in a .380.

The Lyman manual has the loads you're looking for. It's a good manual to have on hand for many more reasons than that.
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Old June 14, 2011, 04:52 PM   #5
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I occasionally load Berry's 100 gr HBRNs backwards in 9mm (as a hollow point), for a plinking/target load. Berry's considers it a ".380" bullet. In the past, I have also loaded various 90-95 gr HPs.

Some pistols can't be made to run reliably with the light bullets. Some can. You just have to experiment, and see if it works for your firearm.
(As an aside - my load with the 100 gr HBRN seated backwards is unlikely to feed in most pistols. Yet, it does just fine in my P95 and several Hi-Powers... but they also feed empty cases without issue.)
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Old June 14, 2011, 07:09 PM   #6
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I've played around with 90gr Hornady XTP bullets. I was mainly looking to develop a higher velocity load especially for my HiPoint 9mm carbine. I think I used Blue Dot for that.

Hornady publishes data for 90gr XTP and 100gr FMJ RN for 9mm Luger, .380 and even .357 Sig.
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