Data needed: 9mm 124 gr RN plated bullet w/ Power Pistol

[coloradokevin]

I can't seem to find any data that matches the bullets/powder I have on hand at the moment, but there ought to be something that will work for this combination. Just looking to see what wisdom you guys might be able to share, or to see if you know anywhere that this data might be written down!

I've got a box of 250 HSM 9mm (.355) 124 grain round nose plated bullets on hand, and about a pound of Power Pistol powder. For the life of me I can't find data for this particular load (it's not on Alliant's website or HSM's site, or in any of my manuals). I also can't reliably find any components in the local stores these days, so this stuff will have to work together for the time being.

Now, my Lyman load manual shows a 130 gr RN FMJ bullet with a COAL of 1.160" and 5.1-5.7 grains of Power Pistol. It also shows a 120 grain RN lead bullet with a COAL of 1.065" and 5.0-5.6 grains of Power Pistol. Since I'm shooting a plated bullet I figure it might fall in between these two.

I also have some loaded ammunition (hand loads) with 4.7 grains of Power Pistol and a COAL of 1.155", which I put together using this bullet based on load data that someone gave me (and I've since lost)... but, those rounds didn't cycle well during my range test (unknown reason, but no pressure signs).

Where would you begin on this problem to come up with a viable load?



I know the 9mm is susceptible to pressure rise with too-deeply seated bullets, so the COAL concerns me more than anything I suppose. Still, I'm thinking somewhere around 1.11" COAL and 5.0 grains of Power Pistol ought to be a safe starting point? I don't normally load without data available, and obviously don't want to play cowboy and end up explosively disassembling a gun (or my hand).

Thanks!

 

[rcmodel]

5.0 is way to light a load with a 115 anything and Power Pistol.

Use Lyman's Starting load for a jacketed bullet of 5.9 grains.

Seat as long as will chamber in your barrel without hitting the rifling.

You will probably need to work up to more like 6.0 or more before you get reliable cycling.

1.11" OAL is going to be way too short for any 115 RN bullet.

Probably 1.150" or so is more like it with a RN 115 bullet weight.
But again, it all depends on the bullet profile of what you are using.
And whether or not it will pass the 'Plunk Test' in your barrel.

rc

 

[Jim Watson]

RC, he's got 124 grain bullets.

MY Lyman 49th shows a 124 gr 9mm JHP at 1.075" OAL and 5.7 gr Power Pistol MAXIMUM for a chamber pressure of 31300 CUP.

I would load that RN to 1.145" like I do all weights of RN and start not lower than 90%, say 5.1-5.2 grains. And be prepared to increase.

Power Pistol is a manly powder with high velocity, loud report, and bright flash.

 

[coloradokevin]

Jim, I've definitely experienced the Power Pistol flash out of my .45 ACP / .45 GAP / .40 S&W in the past, so I totally get what you're saying!

I think we're probably seeing the same data set, though I'm referencing the Lyman 3rd edition pistol and revolver book. I figured that the 125 grain JHP bullet load would give me some guidance for determining the charge weight, but I wasn't comfortable with relying on it for my COAL decisions, since that bullet obviously has a different profile than a RN bullet. The 1.145" OAL you mentioned certainly doesn't sound unreasonable in my estimation.

 

[LeftyTSGC]

Alliant loading guide shows:

1.12 OAL
4 BBL
CCI 500 Primer
Power Pistol Powder
6.4 Charge Weight
1,157 Velocity
SPEER GDHP

Just to use as a reference.

http://www.alliantpowder.com/reload...=1&weight=124&shellid=23&bulletid=26&bdid=951

Lefty

 

[918v]

Pick an OAL your gun likes.

Start at about 5.7 grains of PP.

Work up to an accurate load.

You cannot blow up a 9mm with Power Pistol.

 

[Lj1941]

PP in 9 Plated

I load Berry's 124 Plated round nose using middle of road jacketed data.Start at 5.8 and go from there. Heavy flash is normal IMHO from Power Pistol. Your mileage will of course vary. I previously used Blue Dot and found Power Pistol much more to my liking for high power loads. I much prefer 231 or Titegroup for normal plated loads.

 

[RealGun]

My 5.2 gr PP with 124 FMJ is a really good load, so your 5.0 or a bit less for plated should be fine. For that Zero 124 FMJ, my note says OAL = 1.135.

 

[coloradokevin]

Alliant loading guide shows:

1.12 OAL
4 BBL
CCI 500 Primer
Power Pistol Powder
6.4 Charge Weight
1,157 Velocity
SPEER GDHP

Just to use as a reference.

http://www.alliantpowder.com/reloade...id=26&bdid=951

Lefty

Lefty,

I saw that data, too. I assume that the 6.4 grain max charge weight might transfer to my bullet (though it might be a little bit hot for the plated). But, what about seating depth? I'm using a RN bullet, and their data looks like it's for a JHP. I can't imagine that those bullets are likely to be the same length.

I'm supposing I'm just start with a longer seating length and carefully work my way shorter... don't want any surprises.

 

[coloradokevin]

My 5.2 gr PP with 124 FMJ is a really good load, so your 5.0 or a bit less for plated should be fine. For that Zero 124 FMJ, my note says OAL = 1.135.

Cool, thanks... that helps me narrow down a starting range!

I normally load to published data I have available to me, but at times when resources get scarce (like the past 9 months) I sometimes need to get a bit creative. And, I imagine there's published data out there *somewhere* for the components I'm using, I just simply don't have it!

 

[LeftyTSGC]

There is a link somewhere here in THR that describes how to find your specific pistols OAL. That should provide for a good start point. If I remeber correctly, the Lyman reloading guide (or ABC of relaoding) states the bullet jump should be between .010 -.030 for best performance.

then you just need to find the load that will give you the best performance (velocity & accuracy) But the OAL should not vary to far using this technique.

I have adjusted the OAL on my handgun and a reduction of .010 provided me with an increase of 50+/_fps and did not change accuracy, actually improved it. Just need to figure out your start point and go from there.

 

[Otto]

1.11" OAL is going to be way too short for any 115 RN bullet.

That's incorrect....
Hornady's manual list 1.100" for a 115gr RN.
Sierra's manual list 1.100 as well.
Accurate Powders manual goes even shorter at 1.095".

 

[rope stretcher]

This one works for me, feeds, cycles, and shoots great through all of my 9 mms:

124 gr RN Plated bullet
5.3 gr. Power Pistol
Win or Rem spp
OAL 1.15

1060 F.P.S.

 

[ssyoumans]

I load 5.7gr Power Pistol using Berry's 124gr Plated RNHB at 1.140" and measured 1086fps from a Glock 19. Thought it would have been higher, but wasn't.

 

[2 Horse]

Fresh out of Speer Reloading #14

124 gr TMJ RN (TMJ's are plated) Part No 3993

C.O.L. 1.135

Power Pistol Start 5.6/1033 Max 6.4/1157

Hope this helps

 

[777TRUTH]

This load works great in all my 9's

5.5gr Power Pistol under a Berry's 124gr RNDS or X-Treme Plated bullet. 1.135 C.O.L.