357, unique and 125gr lead load?


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Cranky CJ
August 29, 2011, 09:53 PM
I purchased some hsm 125gr semi wadcutter bullets, lead, using unique powder. The hsm site says to use comparable load data for lead bullets. So I loaded some; 7.3-7.5 gr unique for a .357 load- based on my lyman book. the book says for a 120gr starting load 7.2, max load 9.4

Now I'm second guessing that they may be too hot. any opinions on this? I haven't shot any. Opinions?

thanks.

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3leggeddog
August 30, 2011, 08:36 AM
My book shows a 125gr. lrn for Unique : 6.0 grs [769fps] to 7.8 grs [1290fps] I'd guest you may have trouble with barrel leading when using 7+ grs.
For just shooting targets why not try using 6.2 to 6.5?

Snowbandit
August 30, 2011, 09:12 AM
Your Lyman books reads a whole lot different than mine does. For 121 grain bullets of several styles mine shows a min 4 and max 8.5 grains Unique. The upper charge weights are running velocities that almost guarantee problems with leading in short order. I'm going to agree with 3leggeddog here. That 6.2 - 6.5 grain load should shoot pretty nice and anything over 7 is likely to cause leading.

Cranky CJ
August 30, 2011, 10:40 AM
thanks. you guys are saying what i've been reading elsewhere. looks like I'm going to pull some bullets and have a re-do party.

3leggeddog
August 30, 2011, 11:16 AM
My data was taken from the NEW "Lyman Pistol+ Revolver" 3rd Edition hand book. You may want to check your data against the powder manufacture!
Mold # 358093 125 gr. Linotype Aol 1.585"
He ask about a 125 gr LEAD bullet NOT a 121 !!!!

Snowbandit
August 30, 2011, 11:28 AM
My data was taken from the NEW "Lyman Pistol+ Revolver" 3rd Edition hand book. You may want to check your data against the powder manufacture!
Mold # 358093 125 gr. Linotype Aol 1.585"
He ask about a 125 gr LEAD bullet NOT a 121 !!!!
And he was using data from a 120 grain, so what's your point?

Published data isn't always available for all possible load variations and sometimes you have to work something up. Guys that have been around reloading a while can usually do this pretty safely by starting with something close. I thought that's what we were doing here.

3leggeddog
August 30, 2011, 12:01 PM
Snowbandit: You said " And he was using data from a 120 grain, so what's your point?

Published data isn't always available for all possible load variations and sometimes you have to work something up. Guys that have been around reloading a while can usually do this pretty safely by starting with something close. I thought that's what we were doing here. "
3leggeddog says:
My point is to post Correct data , the max for the 121 you posted Is a lot Higher than the 125 gr max! by the book. 125gr = max of 7.8. 120 gr max =9.1 for the lrn......

No offence ment, I didnt mean to be so hard on Snowbandit!

Cranky CJ
August 30, 2011, 01:53 PM
This is my first time loading lead bullets. While I have the processes down pretty good, I am still developing the judgement to work up my own loads (only been doing it 6 months or so). I started reading about leading with hotter loads or higher velocities. I began second guessing myself it appears rightly so. This sub forum has worked as my security net when I'm not sure of what I'm doing. I don't have any friends that reload so what I'm doing I learn on my own with the help of this forum. I appreciate the information sharing. Thanks guys.

rcmodel
August 30, 2011, 02:03 PM
He ask about a 125 gr LEAD bullet NOT a 121 !!!! Lyman lists it's bullet weight "as cast".
That means before sizing and lubing.

Bullet lube will easily add the missing 4.0 grains, making the 121 grain "as cast" bullet weigh 125 or so after it is sized & lubed.

They are also talking about Linotype bullet alloy with that load data.
Linotype is very hard, and those bullets can be loaded much hotter without leading then typical commercial cast bullets made from softer alloy.

rc

Shaky
August 30, 2011, 02:54 PM
The data in the op sounds about right for max 357 loads. My alliant flyer shows 6.0 of unique for std 38 spl loads for a 125 gr lead bullet. Most of the lead bullet data out there is for soft or swaged bullets, which will lead your bbl something fierce if they're pushed hard at all. If you're shooting a hard cast bullet with bhn of 15+ you'll blow the gun up before the bullet causes leading at least with Unique (undersized bullets/obstructed bore, etc will likely give you leading regardless of velocity).

Those 7.X loads should have you in the 1200 fps range, with the max around 1600, depending on bbl length.

DC Plumber
August 30, 2011, 08:21 PM
I load 6.5g or Universal with 125g JHP bullets in my .357 for light target loads.

Now.......I know he asked about Unique and 125g wad cutters, so I'm only listing my load as another reference, since it is a light target load.

I'd think 7+ grains might be a little fast for a soft lead wadcutter. I'd try and find a 38 special load for the same bullet and start with the max load if loading it in a .357 case.

But that's just me.

Hoppe
September 2, 2011, 08:47 AM
Just remimber not all lead is the same if you have softer lead you need to slow them down some, if it's harder you can run them a lil hotter.

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