Looking for load info on Berry's plated 124grn 9mm


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Johnny Lightning
October 21, 2010, 07:43 AM
I will be reloading some 124 grain plated Berrys bullets soon and am looking for some prooven reloads using hp-38, 700-X, and TightGroup. Also what OAL are you using?

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bds
October 21, 2010, 09:15 AM
They are advertised as 0.356", so I use lead load data.

For Berry's 124 gr RN, I use 4.0-4.3 gr of W231/HP38 at 1.125"-1.14" OAL. Use the longest OAL that will feed/chamber well in your pistol and charge that will produce the smallest consistent shot groups. If you want a load that will work in all pistols, 4.3 gr at 1.125" OAL.

Load data from Hodgdon website (http://data.hodgdon.com/cartridge_load.asp):
125 gr. LCN Hodgdon HP-38 .356" OAL 1.125" Start 3.9 gr (1009 fps) - Max 4.4 gr (1086 fps)

sig2009
October 21, 2010, 11:23 AM
Berrys are .355 not .356

SSN Vet
October 21, 2010, 11:45 AM
For Berry's 124 gr RN, I use 4.0-4.3 gr of W231/HP38 at 1.125"

That's exactly what I do.

I've loaded them up to 4.5 gr. with no problems

rcmodel
October 21, 2010, 12:22 PM
5.0 grains Unique seated 1.140" OAL.

rc

Berry's MFG
October 21, 2010, 02:18 PM
We do go to a .356" with the 9mm bullets, all of our pistol bullets are .001" over just like a cast lead bullet. The plating is much softer than a work-hardened jacket so we can do so and not jump pressures.

Johnny Lightning
October 21, 2010, 07:58 PM
"For Berry's 124 gr RN, I use 4.0-4.3 gr of W231/HP38 at 1.125"

That is that load I will start w/ using the HP38. I have been loading Berry's 115 bullets at an OAL of 1.135...any reason I shouldn't go that long w/ the 124 bullets?

bds
October 21, 2010, 08:36 PM
OAL of 1.135 ... any reason I shouldn't go that long w/ the 124 bullets?
You can usually go 1.14" OAL without much problem, but it depends on whether the longer OAL will reliably feed/chamber in your pistol. In general, longer OAL will give you greater accuracy as the bullet will engage the rifling sooner.

I load for several different pistols so I use 1.125" OAL for optimal feeding/chambering in any pistol, but will load my match loads as long as I can.

If you are loading plinking rounds and want to reduce reloading cost, shorter OAL will require less powder charge and Berry's larger .356 diameter lead load requires even less powder than jacketed load. :D

Berry's 124 gr RN has been very good for me and I push them hard - no issue with plating separation even at near max loads.

Johnny Lightning
October 22, 2010, 04:09 AM
got a question bds...how do you know you have made the oal too long for your perticular pistol? lets say i make my reloads w/ the oal set at 1.14 then load one of these rounds into the chamber...if it is too long will the bullet show any mark/nicks of haveing touched the rifling if i remove the round and check it? is there a better way to find what the best oal is for a perticular pistol or even rifle for that matter?

Walkalong
October 22, 2010, 07:15 AM
A pictorial

http://www.thehighroad.org/showthread.php?t=506678
.

rfwobbly
October 22, 2010, 08:26 AM
got a question bds...how do you know you have made the oal too long for your particular pistol?

Because, as Mr.Along alludes to, you first use a test cartridge to measure the maximum bullet/case length in your barrel, then you subtract a set-back number like .015 or .020" from that to get the maximum safe OAL.

From there you can use any published load at that length or shorter. So if your max OAL turns out to be 1.155" and you find a published load for 1.140", you know you can safely use that load at any OAL between 1.140" and 1.155". Follow?

With the Berry RN there will be no issues. The test cartridge always returns a number longer than the SAAMI maximum length of 1.169" in my very tight CZ. I usually use something between 1.140 and 1.150" with a load of 4.3gr W231.

You can also run the 130gr and 135gr Berry RN bullets listed under 38 Super in the 9mm.

bds
October 22, 2010, 09:41 AM
got a question bds...how do you know you have made the oal too long for your particular pistol?
Walkalong and rfwobbly covered the max OAL determination well. If the OAL is too long for your pistol, it won't feed/chamber well from the magazine when you release the slide.

Of course, this is assuming that your reloaded rounds are within specs and falling in freely when dropped into the chamber of the barrel with a "clink".

Taroman
October 22, 2010, 11:03 AM
Just trying the 124s for the first time.
My first load was 7.4 grains of #7.
Chronographed at 1080 f/s out of my S&W 639.
Warm but very accurate.

MrOldLude
October 22, 2010, 11:07 AM
FWIW, don't worry so much about overdriving the plating. For 124 gr, you likely won't be accelerating the projectile fast enough to cause deleterious effects to the plating. Berry's has stated here and other places that 1200 FPS is about the proven safe limit, and most full power 115 gr 9mm slugs aren't that fast.

So start low, and then work your way up as you feel comfortable, naturally.

edit: For my G19, I've had no cycling troubles w/ a 1.135" OAL.

chbrow10
October 22, 2010, 01:16 PM
I load for a G34 to 1.135 as well. I am thinking about going longer, but not right now since I'm headed to a big match and don't want to mess with anything...

Johnny Lightning
October 22, 2010, 02:43 PM
I was just at the range today w/ my last batch of 115grn Berry's w/ hp-38 4.6grns and oal set to 1.135 and they ran through my 34 like butter and were accurate to boot. I am going to try the empty case method to find the OAL of my 17 and 34 and let you know. Thanks for the help!

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