.4520 push throuigh sizing die - recommendations?

[kenn]

I have a .4525 lee push through sizer. It works quite well in that it consistently puts out a .4525 perfectly round boolit. Problem is, my Sig 1911 is very tight and occasionally the round won't "plunk" even if I crimp it heavily with a lee FCD. I thought it might just be powder fouling the throat and causing rounds to not seat completely but it happens only 100 rounds in or so. I'm shooting 200gr SWC lead both lubed with 45/45/10 and powder coat and both behave the same way. I get clean feeds for the first couple mags and as soon as there is ANY soot in the throat at all, rounds don't slide in easily as as my shooting session nears an end at 200 rounds or so, 1 out of every mag will not seat all the way. OAL is 1.24 or so and that doesn't seem to be an issue. I'm seating deep enough to get a clean plunk most of the time but with some brass (thicker wall) it's a tight fit.

Does anyone make a sizer that pushes through at .4520 that is reasonably cheap? Optionally, it seems buckshot is a great option as I got a .460 from him and it sizes EXACTLY at .460...

[Bullwolf]

On the inexpensive side, buy a Lee .451 sizer die, and hone it out with a split dowel, wet/dry paper, and some oil. It wont take much, so go slow. I would start at 220 or 300 or so and check often, finish with 600-800, or even a finer paper (1200) if you so desire.

I have done it often, and it's very easy to do yourself. You will end up with a smooth polished die when finished as well. When you get to the desired size, be sure to label or mark it.

For a more quality job, contact Buckshot instead of going through the hassle of doing it yourself.


- Bullwolf

[mdi]

I'd get a .451" die and try that with a few bullets. Shoot some. If it sizes too small, you can always open it up via Bullwolf's method...

[BD]

Slug your barrel. There are a lot of newer 1911 barrels out there that will slug .4505 or under. A .451 sizer may be just right.