Lee TL356-124 700x load for 9mm

[guncheese]

im to lazy to work this one up
was thinking 3.5 or 3.7 gr of 700x
im guessing that would be about 1050fps maybe 1100 with a powder coated boolit
here they are all lined up and ready to load
110465

what say ye !!

i wish i could bring myself to dip into my bullseye for 9mm but i just cant
its 700x or bust !!!

[tazman]

The IMR data site shows 3.4 for a max at a little over 1000fps using a125gr lcn(lead conical nose).

[runfiverun]

I use a couple of clicks over 3 grs of red-dot to make my plain base 9m boolits make the steel go ding down at our local range.
700-x is right close in burn rate and fluffiness to red-dot, so I'd start there if I wanted to burn up what little 700-x I have in the 9.

[guncheese]

digging into some data even IMR cant make up their mind (heavier and deeper seated with more powder
almost looks like the -20% lawyer got a grip on the data before publishing
found some IMR data from 2001
110483
110484
110485
even then it seems goofy
but by that data and some others ive seen
i would think that im good with the 124gr of .580" length seated to 1.100" at 3.5-3.7gr
that gives me .234" or so bullet base in the case which gives .040" more usable case than the 147gr xtp which they have at 3.7gr max

[runfiverun]

that's because the xtp seats so much deeper than other bullets.
if you sub the xtp for another bullet and use the same powder charge you just created a proof load at minimum.
all the xtp data is lower in the 9m for this same reason, it takes up more of what little room there is in the case.

[guncheese]

it takes up more of what little room there is in the case.

yup thats why it doesnt scare me to use that as a touchstone for this load
heck 3.5 - 3.9gr would seem safe for the 124 by the heavy bullet #s

why dont i just go back to loading .45 you just cant screw that up!

[runfiverun]

you'll be fine with the numbers you come up with.
like I said I only use 3 and some to make things go.
if I have a doubt about one of my boolit/load combinations I always check seating depth [operation] first then figure case capacity from that.
book oal means nothing to my gun, but pressure does.

[guncheese]

because im a dipper
and i had one that did 3.3 (a trimmed down .5cc)
and a .5cc (those toss 3.7gr of 700x perfectly)
so i did 100 of each
i know they are both safe
and im pretty sure the 3.3 will run the gun
will test during the Monday morning session :Fire:

[guncheese]

both of those loads worked fine
the 3.3gr is very light the brass lands right at my feet
i know in the winter it wont cycle well
the 3.7gr tossed the brass a bit further
both of them seemed to as accurate as the other
what i most likly will do is setup a 3.5gr dipper
and call it a day
the primers on the 3.3gr load showed not much of anything (to be expected)
the 3.7gr load did push against the breech a bit bit didnt look as bad as most factory loads

[runfiverun]

sounds like a simple easy plan.
I dip 3.5 grs of 700-x with a 380 case slightly modified with a grinder and a paper clip.
it's my 32-20 load in the ruger 30 carbine revolver.