Poly coated bullet ???

[Smokee]

What are the benefits of 10mm poly coated bullets? Drawbacks? Do you do it yourself and if so, how? What company sells these?

Thanks!

[The_Shadow]

Well the premise for ploy coating is to prevent leading of the bore, and it can be effective for that.
The cast bullet are very cheap especially if you have access to alloy supply for next to no cost...
That being said the bullet size is very important with respect to bore size, there are 10mm guns with bore sizes from 0.3990" to 0.4020" and as such bullets should be sized 0.001" or 0.002" over that of the bore size.  I have used my cast bullets (older wheel weight) sized for 10mm @ 0.4015" with quality lube without issues in the S&W and Glock factory and aftermarket barrels.  This is why I haven't jumped on to the Poly band wagon yet.  I probably will make some with poly in the near future for some applications!

Now obdurate is a process where the bullet bumps up it size as the pressure pushes on its base to fill the bore...this is also why most guys used faster burning powders that spike pressures quickly using pure lead to harder cast alloy.

There are several methods to apply the poly powdered paint coatings and some brands and colors do work better than others...

[Trapper6L]

I'm using the Missouri Bullets in .357 148gr DEWC for plinkers over 4.2grs of 231. My Pythons and one of the SW Stainless 38's love them. There's virtually no cleanup and certainly no grease or wax crap all over everything. I'm also shooting their 180gr  in my 10mm. Groups are around 1 1/2" at 25 yds. No mess, no fouling, and no lead all over my hands when loading them. I'll never shoot a naked lead bullet again. I'm a fan for a plinker style bullet. My next project will be plinkers for the 7.62x 39 which they have a coated bullet for that too.
http://missouribullet.com/results.php?category=20

[Smokee]

The coated ones I found so far look like soft lead BN12 plinker type bullets.

I'll stick with a hardcast wide meplat type bullet. I'd like to find a 200gr WFNGC bullet but so far no luck.

[sparkyv]

The coated ones I found so far look like soft lead BN12 plinker type bullets.

I'll stick with a hardcast wide meplat type bullet. I'd like to find a 200gr WFNGC bullet but so far no luck.

Mr SR1911 likes coated 195gr with BHN of 13 for plinking.  For something more serious, it shoots the Double Tap 200gr WFNGC Hardcast well.

[bigboredad]

Montanabullets.com has a excellent 200gr wfn . Arsenal molds makes a 200gr wfn that looks like a perfect copy.  It feeds great in my Ruger and  is super accurate.
When powder coating be careful of what is in the powder. Harbor freight Matt black is said to have aluminum oxide in it. I'm not sure if it does or doesn't but I now have a .45 smooth bore from using it and a friend of mine has a .40 and 9mm smooth bore. At least they shoot snake loads much better now

Sent from my SM-T377V using Tapatalk

[Caboose]

I like poly coated mostly because 1) they're reasonably priced and 2) they smoke less than cast bullets. I've been using The Blue Bullets for several years now in 9, 40, and now 10mm. Drawbacks? I can't think of any other than they do tend to dirty up a barrel more than jacketed in my experience. Sometimes it's a little tricky to get your flare/seat/crimp right without scraping the coating.

[gandog56]

I've been usinf Precision Bullets .40 cal bullets for years in both .40 Cal S&W and 10mm with great results. I am not sure what they are coated with but they just do not lead up the pistols. I have also tried Blue Bullets and SNC coated bullets with no problems except pulling some strange colors out when I clean the guns.