.380 100grn RNFP need help

simon_rook · Jun 14, 2011

This headache started when I got some HSM HC 100grn RNFP .356 dia. I wanted to load in my 380. Most of the data I find for RNL shows a Coal of .975 These need to sit at .965 to function in my pistol. I was wondering if anybody here has loaded these and what worked best. On hand I have all kinds of pistol powders so I'm flexible there.

RidgwayCO · Jun 15, 2011

I load Hornady's 100gr FMJ-Encapsulated bullet to .960" to ensure 100% functioning in all my .380 Auto pistols.

I usually look for about 925 fps with this bullet,to duplicate factory energy levels (about 190 ft-lbs). The following powders and amounts get me close:

VV N310 - 2.7gr
Accurate #2 - 3.0gr
TiteGroup - 3.0gr
VV N320 - 3.4gr
VV N330 - 3.7gr
VV N340 - 4.0gr
Unique - 4.0gr

Notwithstanding my infatuation with the VihtaVuori products, my favorite powder in the .380 Auto is Accurate #2. Meters like water, burns very clean, and can provide single-digit numbers for standard deviation and extreme spread. What's not to like?

Hope this helps.

Overkilll0084 · Jun 15, 2011

I run them at .940" without issues. Honestly, I could probably go a bit shorter. I tend to run them as long as I can get away with. They work ok in my wife's Walther PPK/S. FWIW, I use 2.9 gr of Bullseye.
Edit-This is the bullet we are talking about, right?:

simon_rook · Jun 15, 2011

Edit-This is the bullet we are talking about, right?:

My packaging was different. Brown box only said HSM on it and an orange upc sticker.They used a different lube on mine too, its a dark red. But from where I'm sitting the profile looks the same. Mine are hard cast. If those are soft lead that might explain it.

I usually look for about 925 fps with this bullet,to duplicate factory energy levels (about 190 ft-lbs). The following powders and amounts get me close:

Thats all I'm looking for too. Thanks for the loads. I have some No.2 I been waiting to try, gonna open it up now. Are thease starting loads or should I back off 10% and work up?

RidgwayCO · Jun 15, 2011

The loads I listed aren't maximum, so I'd back off maybe 5-7% to start.

Overkilll0084 · Jun 15, 2011

They are hard cast. How hard I couldn't say, but they do fine. When I use these up, I have a box Missouri Bullets 95 gr I'll be switching to. I simply grabbed these because thats what was there.

simon_rook · Jun 15, 2011

I simply grabbed these because thats what was there.

lol, yep same here

The loads I listed aren't maximum, so I'd back off maybe 5-7% to start.

Will do, Thanks!

.380 100grn RNFP need help

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