Ontarget Posted September 24, 2021 Share Posted September 24, 2021 I would like to hear your thoughts on the Lee U die. Do you like it? Do you use it? Thanks. Link to comment Share on other sites More sharing options...
RangerTrace Posted September 24, 2021 Share Posted September 24, 2021 Highly for 40 or 9mm. Once I started using one, I could have stopped case gauging ammo. And now I only check match ammo. Link to comment Share on other sites More sharing options...
IHAVEGAS Posted September 24, 2021 Share Posted September 24, 2021 I use one for 9mm revolvers that tend to encourage bullets to walk out of brass. The only downside I know of is that it requires a bit more force on the handle so it can make long reloading sessions less fun. Never found a need for one in 40, if I did I would try this one first https://www.egwguns.com/undersize-reloading-die-40-s-w-10mm . Link to comment Share on other sites More sharing options...
RePete Posted September 24, 2021 Share Posted September 24, 2021 I have one and it worked well, to a degree. I found that on the 1050 the case neck would strike the bottom of the die and crush it. I now use a CasePro100. Link to comment Share on other sites More sharing options...
Furrly Posted September 24, 2021 Share Posted September 24, 2021 That's all I use for 40cal, 9mm and 9mm major Link to comment Share on other sites More sharing options...
EEH Posted September 24, 2021 Share Posted September 24, 2021 YES. Link to comment Share on other sites More sharing options...
open17 Posted September 24, 2021 Share Posted September 24, 2021 Little spritz of One-Shot and U dies in 9mm and 40. Link to comment Share on other sites More sharing options...
Southpaw Posted September 25, 2021 Share Posted September 25, 2021 Yes Link to comment Share on other sites More sharing options...
cbrussell Posted September 25, 2021 Share Posted September 25, 2021 Absolutely recommend the Lee U die. Use it for my 40 as well as other calibers. Best die going. Link to comment Share on other sites More sharing options...
bulm540 Posted September 29, 2021 Share Posted September 29, 2021 Yup Link to comment Share on other sites More sharing options...
zzt Posted September 30, 2021 Share Posted September 30, 2021 (edited) I don't use one. I use the Lee Factory Carbide Crimp Die in 9, 40 and 45. I have it set to crimp only. For straight walled cases like 40 and 45 it completely eliminates any Glock bulge missed by the sizing die. For tapered cases like 9mm it is not as effective, because only the top of the case is sized. Edited September 30, 2021 by zzt Link to comment Share on other sites More sharing options...
twodownzero Posted September 30, 2021 Share Posted September 30, 2021 I have been using it in both 40 and 9mm because they were on sale a while back. I didn't have a lot of problems before I started using it but I have basically none now. If you have a 650 it's a no brainer, put a normal sizing die in station 1, the u die goes in station 2 with no decapping pin and enjoy! Link to comment Share on other sites More sharing options...
Cuz Posted September 30, 2021 Share Posted September 30, 2021 I used it in 40 many years ago. I just got one last month in 9mm and processed some cases with it. When I went to load them I think it was causing my powder measure to stick and I didn’t like that. I don’t know for sure it was the U die, but I removed it from my processing toolhead and don’t use it anymore, for now. Link to comment Share on other sites More sharing options...
Kilrb Posted October 7, 2021 Share Posted October 7, 2021 I use on .40 and 9 , used several these have been the best Link to comment Share on other sites More sharing options...
kellymc Posted October 7, 2021 Share Posted October 7, 2021 i had problems [2 out of 100] before I got one . Now its been 800 rounds without a issue in 40sw. I was using a 3 die setup before I added the U die Link to comment Share on other sites More sharing options...
Yeti Posted October 24, 2021 Share Posted October 24, 2021 On 9/24/2021 at 6:13 AM, Ontarget said: I would like to hear your thoughts on the Lee U die. Do you like it? Do you use it? Thanks. Yes, I like using the LEE U-Die for 40 for jacketed loads. Reduces number of case gauge failures in batches. Works nicely. Link to comment Share on other sites More sharing options...
michael b. Posted October 27, 2021 Share Posted October 27, 2021 Yep! I process all my .40 brass through a Lee APP with a U die, then run it through a wet tumble. Sets me up with like-new brass and helps weed out any split, or otherwise bad cases. Link to comment Share on other sites More sharing options...
dogdoc1 Posted October 28, 2021 Share Posted October 28, 2021 No downside as I have used one for years Link to comment Share on other sites More sharing options...
ima45dv8 Posted October 28, 2021 Share Posted October 28, 2021 For .40, I don't consider it a convenience but a critical piece of safety equipment. If you're ever around when someone fires a .40 that has suffered setup into the case, you'll know why I say that. It's a high pressure round to begin with. Let the bullet set back enough and it's a .40 caliber hand grenade. I'm sure someone will tell me I'm wrong, but I know what I've seen. Link to comment Share on other sites More sharing options...
ltdmstr Posted October 28, 2021 Share Posted October 28, 2021 11 minutes ago, ima45dv8 said: For .40, I don't consider it a convenience but a critical piece of safety equipment. If you're ever around when someone fires a .40 that has suffered setup into the case, you'll know why I say that. It's a high pressure round to begin with. Let the bullet set back enough and it's a .40 caliber hand grenade. I'm sure someone will tell me I'm wrong, but I know what I've seen. Well, since you asked for it. . . . To start, .40 SW isn't a high pressure round. At 35k psi per SAMMI spec, it's the same as 9mm. Maybe not a powder puff like .45 ACP, but nothing close to what would be defined as high pressure. As for the U-die, it overworks the brass, and in most cases, sizes it excessively. While that's certainly more desirable than not sizing it sufficiently, there are better alternatives. One is the Redding Dual Ring, which sizes the case opening correctly, without undersizing the bottom half. So, no setback and no Coke bottle effect. It also makes for less work if you're cranking them out by hand, as most of us are. And if you're like me, and load a couple thousand or more at a time, that makes a big difference. Link to comment Share on other sites More sharing options...
Nolan Posted October 29, 2021 Share Posted October 29, 2021 On 10/28/2021 at 11:14 AM, ltdmstr said: Well, since you asked for it. . . . To start, .40 SW isn't a high pressure round. At 35k psi per SAMMI spec, it's the same as 9mm. Maybe not a powder puff like .45 ACP, but nothing close to what would be defined as high pressure. As for the U-die, it overworks the brass, and in most cases, sizes it excessively. While that's certainly more desirable than not sizing it sufficiently, there are better alternatives. One is the Redding Dual Ring, which sizes the case opening correctly, without undersizing the bottom half. So, no setback and no Coke bottle effect. It also makes for less work if you're cranking them out by hand, as most of us are. And if you're like me, and load a couple thousand or more at a time, that makes a big difference. It is a high pressure round if you're running a 180-200gr jacketed bullet with a fast powder like Clays, which was a very popular USPSA Limited Major load for at least a decade. Fortunately, there are now some more forgiving powders. Nolan Link to comment Share on other sites More sharing options...
ltdmstr Posted October 29, 2021 Share Posted October 29, 2021 24 minutes ago, Nolan said: It is a high pressure round if you're running a 180-200gr jacketed bullet with a fast powder like Clays, which was a very popular USPSA Limited Major load for at least a decade. Fortunately, there are now some more forgiving powders. Nolan That's pure speculation on your part. There are no published figures for those loads, so you have no idea what the numbers are. Link to comment Share on other sites More sharing options...
Nolan Posted October 30, 2021 Share Posted October 30, 2021 On 10/29/2021 at 11:54 AM, ltdmstr said: That's pure speculation on your part. There are no published figures for those loads, so you have no idea what the numbers are. You are absolute correct, but when it is almost a full grain over the published max load.....ehh. I think you can safely (Excuse the pun) consider that a high pressure load. Nolan Link to comment Share on other sites More sharing options...
ltdmstr Posted October 31, 2021 Share Posted October 31, 2021 1 hour ago, Nolan said: You are absolute correct, but when it is almost a full grain over the published max load.....ehh. I think you can safely (Excuse the pun) consider that a high pressure load. Nolan And the .045 - .065 longer OAL effectively increases case capacity, which should decrease pressure compared to a typical .40 SW round. So, like I said, pure speculation. Link to comment Share on other sites More sharing options...
workingmanjeff Posted November 10, 2021 Share Posted November 10, 2021 On 10/28/2021 at 1:24 PM, dogdoc1 said: No downside as I have used one for years This, I use the egw version for 40 and 9 Link to comment Share on other sites More sharing options...
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