Heavy for Caliber 380ACP Load

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markr6754

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I always considered the top end for 380 ACP to be 100gr, and have many rounds of experience with 100gr FMJ and 100gr Plated RN.

I recently picked up Nosler 9th edition and was surprised to find only one load listed under 380ACP...a 115gr JHP. I had to change the specs in Reloaders Workshop to even permit me to use these in 380ACP, as the specs for the cartridge max out at 100gr.

One powder I recently acquired, merely due to a lack of anything else, Hi-Skor 700-X was one of the listed powders for this heavy projectile, with loads from 1.5gr to 2.5gr.

My original plan was to fire these from my RIA Baby Rock M1911A-380, my only steel frame 380 ACP. I made up a small ladder in the middle with 10 rds each from 1.9gr to 2.1gr. using 115gr JHP RN bullets from Everglades, along with TulAmmo SPP.

Well, you know the old adage about plans. While preparing for a range session with my son I just grabbed boxes of ammo off the shelf, mostly 9mm and 380ACP. Between the 150 rds of 9mm I shot, and the 60 rounds of Winchester factory in 350 Legend, I was spent. My son wanted to continue, so he picked up the box of 115gr 380 ACP, fired all 30 rounds...never said a word. It didn't come to my mind, either as he was firing away...but I noticed that some of the cases were ejecting over the wall and landing in the adjoining empty stall. I was chasing the spent cases, noticed they were all nickel, but even that, and the strong ejection pattern, didn't clue me in that these were my test loads.

I realized the next day while I was cataloguing the fired ammo that he fired these off in one of his plastic, striker fired pistols. After my queries he reported that everything fed and cycled well, no indication of excessive recoil...in fact, the only remarkable thing he noted was that at 7 yards he couldn't see where any of the rounds landed. I wasn't spotting, so I don't know where they hit, either.

In the end, it appears that one can load 115gr JHP projectiles in 380ACP, shoot them, and live to tell the story...even if the bullets vaporize immediately on exiting the barrel.
 
I load 120gr in my .380. They do fine.
1 - Where do you get 120gr bullets?
2 - Where did you find load data for that heavy a pill?
I was concerned about trying to push a 115gr out of a thin 380 ACP case...I don't know that 5 more grains would be that big of a deal...but it's not something I'd like to do on a regular basis.
 
120gr .380 data is in Lymans Cast Bullet Handbook #3. I cast my own 120gr. Lee TC .358 bullet (which I size to .356 for .380 use).
 
There was a fellow in here named Clark that was loading 158gr in 380 AACP with some success.

I recommend sifting through the archives to read some of that, and his other ambitious adventures!

hope he's doing okay... haven't seen him around here in a while
 
In the past, I have loaded 115 gr .380 largely because I did not want to buy 100 gr bullets for only one gun.
Now my 9mm bullets are 124 gr with a long nose so I just keep some 100s for the .380.
 
Got it...I'll be sure to avoid shooting in my Bersa Thunder. Not at all worried about my 1911ish pistols, which is the bulk of my 380s.

Pressure is pressure regardless of bullet weight so your Bersa won't have any problems if the load is within spec. Calculate the energy and in many cases the heavier bullet in 380 will have less energy also. Here are the two different heavy bullets listed from Lyman's P&R load manual. Your 115 JHP is probably very close to the length of the JHP in the manual, so if your oal is close to the listed .956" oal then you're safe. I load a Sierra 115JHP in 380 at .920" with Power Pistol and HS6 in the low to mid range charge and they're less harsh than any 90gn bullet I've loaded to max.

380heavy.jpg
 
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I loaded 124 gr. Lead bullets in a 380 w a listed safe pressure load. The slide battered the leading edge of the frame rather badly. Also, lager bullets in that case hit the taper of the case wall. It defroms the bullet somewhat. Was an interesting experiment, but standard common loads are that way for a reason. A 380 just dosent have a lot of flexability.
 
Going below about 600fps or so in any caliber is a good way to get a bullet stuck in a bore.
That's a concern of mine, for sure, when reloading as I neither have a chronograph, nor access to one. I've made up some loads (not heavy for caliber) that the brass merely fell out of the ejection port. Of course the next time out was to avoid that charge for future loading. I guess that's why we test. My challenge is too many firearms, with each having their own unique characteristics, and I don't have space to store unique loads for each handgun.
 
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