Too much crimp?

[EMR]

Too much crimp?

...Don't worry about the base measurement.

[RiskyBusiness]

Use wbunning method above your last post, to set die.
Don't worry about the base measurement. Use the above method for setting your die. You should be at .469 to.471 at the mouth. You should be OK at .472. Do a PLUNK TEST:https://www.youtube.com/watch?v=s80P2j02YnM to see if the round drops easily into the barrel, if not, slightly tighten up.
Really all you want to do is straighten out the bell in the case mouth. Have the flare set just enough to accept the base of the bullet, and you should be good to go.

thanks going to take out the barrel so it'll be easier then entering it through the magazine. Plunk test is done without adding the crimp correct? you mentioned not to worry about the base measurement but its the entire diameter of the bullet thats effect by the crimp. This would cause gas cutting if the bullet is smaller than the bore.

[RiskyBusiness]

havent yet adjusted backing out the crimp die so maybe it'll leave the diameter alone this time when i set it properly.

[EMR]

thanks going to take out the barrel so it'll be easier then entering it through the magazine. Plunk test is done without adding the crimp correct? you mentioned not to worry about the base measurement but its the entire diameter of the bullet thats effect by the crimp. This would cause gas cutting if the bullet is smaller than the bore.

The plunk test is with your crimp. Basically to see if your final product fits.

[RiskyBusiness]

The plunk test is with your crimp. Basically to see if your final product fits.

oh okay because in the video he continues to seat deeper and do the test without crimping after every adjustment. If i were to crimp after every adjustment and seat deeper im sure it the case mouth will dig into the lead.

[EMR]

oh okay because in the video he continues to seat deeper and do the test without crimping after every adjustment. If i were to crimp after every adjustment and seat deeper im sure it the case mouth will dig into the lead.

[PatC415]

I agree, but if he's over crimping and then pulling the bullet to measure the diameter, he's going to get that kind of measurement.

OP, where are you getting the .450 measurement, are you pulling the bullets after the case is crimped?

Not sure how he would get a measurement of .450 if he was at .472 crimped.

[EMR]

I agree, but if he's over crimping and then pulling the bullet to measure the diameter, he's going to get that kind of measurement.



OP, where are you getting the .450 measurement, are you pulling the bullets after the case is crimped?



Not sure how he would get a measurement of .450 if he was at .472 crimped.

Ohh gotcha! [emoji1360]

[wbunning]

oh okay because in the video he continues to seat deeper and do the test without crimping after every adjustment. If i were to crimp after every adjustment and seat deeper im sure it the case mouth will dig into the lead.

[otteray]

It looks like you are you using a Lee Factory Crimp Die for a 45 ACP? Not needed or wanted for this caliber in an auto.

All you need is a very slight taper and a "plunk" test, as stated earlier.

I think that over crimping like this, that the round is headspaced incorrectly ... Are these new cases that were never trimmed?

[RiskyBusiness]

I agree, but if he's over crimping and then pulling the bullet to measure the diameter, he's going to get that kind of measurement.

OP, where are you getting the .450 measurement, are you pulling the bullets after the case is crimped?

Not sure how he would get a measurement of .450 if he was at .472 crimped.

im getting the .450 at the base and at the top before the bullets head starts to take shape. It's consistently crushing the bullet even with the die as loose as you can make it.

https://www.youtube.com/watch?v=YWnw0sTBO8w&t=370s

at 6:25 he explains during extraction from the die sizes the case. im going to pull some of my fmj reloads and see if those were sized to .450 as well.

[RiskyBusiness]

It looks like you are you using a Lee Factory Crimp Die for a 45 ACP? Not needed or wanted for this caliber in an auto.

All you need is a very slight taper and a "plunk" test, as stated earlier.

I think that over crimping like this, that the round is headspaced incorrectly ... Are these new cases that were never trimmed?

i gave it the slightest crimp with the adjustment stem not even giving it any pressure once i feel the case mouth. Im going to measure the length of these bullets because if im losing on diameter, that lead is going elsewhere.

[bruce381]

get rid of the lee die buy a "taper' crimp die the lee die will size down the base and you will get gas cutting on the small base and lead the barrel you do not need the LFC die.

[RiskyBusiness]

get rid of the lee die buy a "taper' crimp die the lee die will size down the base and you will get gas cutting on the small base and lead the barrel you do not need the LFC die.

this die does apply a taper crimp, just sucks that its also sizing down my bullet like why is that even a thing? lol

do you think the lead is too soft? im going to try to seat and crimp a plated bullet and see if it does the same. Ordering a taper crimp right now $16... what a bust if i knew this i would've opted for the cheaper 3 die set from lee instead of the 4 which i just found out doesn't even make a decent fleshlight

[bruce381]

yeah its a tapper crimp also but the body of the die is like a sizer die and knocks down any bulges but that includes bullet bulges too.

The bullet does not bounce back as the case will and the bullet is now undersize with a lead bullet in a 45 that's equals barrel leading.