Question Has anyone tried the new Lee micrometer adjustment screws?

[guncurious]

These: https://leeprecision.com/micrometer-adjust-screw-2

On a few of my loads (.223, 45 colt, 45-70) I switch between a few different bullets pretty frequently. These are supposed to make it easy to quickly go back to the correct depth for each bullet type assuming I take good notes. I'm wondering if anyone has used them and if so do you like them or no? All of my dies are Lee.

 

[Warpspeed]

I haven't used the Lee version but the Redding ones work as advertised. They are very repeatable and accurate. I don't see why the Lee ones would be any different, they are after all just micrometers.

For $ 20, it is certainly worth a try.

 

[ChestnutBleach]

Once I find the bullet seating depth I’m looking for, I mark my bullet seating dies with hash marks. Even when going back and forth between significant calibers (ex 38 Special/357 Magnum, or 44 Special/Magnum), I can get back to my preferred seating depth pretty easily.

Only benefit, to me, with these Lee micrometer seating dies is to more quickly dial in a new, preferred seating depth. With normal Lee seating dies, I’ll seat a bullet, check for COL, turn the dial, and repeat. But with the micrometer markings, if I’m off 0.020”, it’s easy to turn the knob 0.020” down. With non-micrometer dies, might take a few tries.

Since I don’t experiment that much, I wouldn’t find it worth it.

 

[AR15barrels]

These: https://leeprecision.com/micrometer-adjust-screw-2

On a few of my loads (.223, 45 colt, 45-70) I switch between a few different bullets pretty frequently. These are supposed to make it easy to quickly go back to the correct depth for each bullet type assuming I take good notes. I'm wondering if anyone has used them and if so do you like them or no? All of my dies are Lee.

If you already take good notes, you can simply measure the overall length of your seating die adjustment for each different bullet seating length you want to be able to use.
This measurement would be the outside of the seating die, top-to-bottom.
That measurement will correlate to a specific overall cartridge length with a specific bullet.

After you have your notes for each bullet/seating length configuration, you dig out your notes when you switch bullets and adjust the seating length accordingly.
As a methodology, it's just as accurate as using a micrometer adjusting seating stem without any extra cost assuming you already have calipers for measuring OAL of cases and loaded ammo anyways.
Having the micrometer on the die saves a few seconds but you are probably going to have the calipers in your hand to check the overall length of the first round you load and make adjustments anyways so you have to decide of those few seconds are worth the price.

 

[AR15barrels]

Once I find the bullet seating depth I’m looking for, I mark my bullet seating dies with hash marks. Even when going back and forth between significant calibers (ex 38 Special/357 Magnum, or 44 Special/Magnum), I can get back to my preferred seating depth pretty easily.

Only benefit, to me, with these Lee micrometer seating dies is to more quickly dial in a new, preferred seating depth. With normal Lee seating dies, I’ll seat a bullet, check for COL, turn the dial, and repeat. But with the micrometer markings, if I’m off 0.020”, it’s easy to turn the knob 0.020” down. With non-micrometer dies, might take a few tries.

Since I don’t experiment that much, I wouldn’t find it worth it.

You can make adjustments exactly with a standard seating stem by simply measuring the die overall length.
So in your process, you seat a bullet long on purpose, measure and then determine you need to seat it 0.020" deeper.
Rather than turning the seating stem a little and seating again, simply turn the seating stem down 0.020" as measured with calipers.
Doing it that way, the next bullet you seat should be right where you want it.
After that, write down the seating die OAL in your notes and then next time you go back to that bullet style, you can adjust the die right to the length you want before you seat the first bullet.

 

[brass slinger]

Let say you reload 9mm 115,124, and 147 with different ogive profiles. You can easily check and set your seating depth setting with the micrometer screw to each bullet. For the $17 I paid for it, it installed in my 35 year old Lee die perfectly. Besides it looks cool!