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Old 04-30-2017, 09:23 PM
LEGION27 LEGION27 is offline
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Default .40 smith and wesson loads

hey all
im currently loading cfe pistol with speer tmj 165gr
min oal in my lee manual state 1.25 lyman is 1.20
ive started at min and worked up to 2grains under max
where id like to stay
my question is my oal is starting to variate im within .005 of min oal under now that im approching max so im worried do you guys think this is a issue or am i ok ? my loads variate between 1.310
and 1.270 where i like but some are 1.120 cant undertstand why they variate my dies are 4 die carbide lee and are set up properly
prob the bullets? thanks for all imput
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Old 04-30-2017, 10:04 PM
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scattershot scattershot is offline
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Could be the bullets, but check the seating stem. Sometimes they come loose.
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Old 04-30-2017, 10:13 PM
LEGION27 LEGION27 is offline
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thank you i will
but these still safe pressures ? not that much deeper then min
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Old 05-01-2017, 12:23 PM
rsrocket1 rsrocket1 is offline
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Quote:
Originally Posted by LEGION27 View Post
hey all

ive started at min and worked up to 2grains under max
where id like to stay

my question is my oal is starting to variate im within .005 of min oal under now that im approching max so im worried do you guys think this is a issue or am i ok ?
Something doesn't seem right with your statements.
Are you 2.0 grains under max or are you approaching max charge according to the load data?

if you are at max charge AND 5 mils shorter than min, then it's likely you are approaching max SAAMI pressure. You still have safety margin but there is no need to go that high if your gun requires a short cartridge length (which is why I'm assuming you need that short length) AND cycling problems if you feel you can't reduce the charge.

If you don't have feed problems with longer COL's or you don't have cycling problems with slightly lower charges, then simply do one, the other or both and you'll get back your safety margin. 5 mils is not going to make a difference with handgun loads at short to medium range. Now if you are good enough to see a difference at 50 yards, then you should probably find more consistent bullets.
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Old 05-01-2017, 12:23 PM
STORMINORMAN STORMINORMAN is offline
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Uh, if you "worked up to 2grains under maximum" using CFE Pistol per HODGDON'S data you are at least a grain & 1/2 under the MINIMUM...

Better recheck your data...?

CHEERS!

P.S. Unless OTHERWISE SPECIFIED I use 1.125" for just about any "normal" bullet in 40 S&W.
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Old 05-01-2017, 03:22 PM
iouri iouri is offline
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I guess 2 grains was a typo, because the whole range from min to max for CFE-P is 0.6 grains according to hodgdon.
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Old 05-05-2017, 11:38 PM
LEGION27 LEGION27 is offline
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yes sorry typo .2 grains from max
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