10mm-Auto

10mm Ammuntion => Reloading 10mm ammo => Topic started by: M60 Tanker on September 19 2016 10:04:54 AM MDT

Title: Powder Coated Bullets
Post by: M60 Tanker on September 19 2016 10:04:54 AM MDT
I just started loading for my 10mm this month and go a Lee mold for it. The mold is there 175gr TC mold. I have been powder coating bullets for a good little bit for my other guns. So this weekend I poured some of the 175gr bullets. After powder coating and with my type of lead mix they came out at 179grs. So loaded up some with 11grs of Blue Dot and some with 9grs of Longshot. They were a hand full when fired. No pressure sights and very accurate. No the best thing no leading. Got to love Longshot and good old Blue Dot.
Title: Re: Powder Coated Bullets
Post by: The_Shadow on September 19 2016 11:25:44 AM MDT
Yep M60 Tanker the 175's are a great bullet for target work and some hunting applications...Blue Dot and LongShot are some of the best powders for the 10mm.  I still need to do some powdered paint coatings on my own, just haven't gotten around to doing it!

What method of application are you utilizing for yours, dry powder spray gun? or dry tumble? or liquid transfer?
Title: Re: Powder Coated Bullets
Post by: M60 Tanker on September 19 2016 12:51:44 PM MDT
I have both and for small jobs I do shake and bake and for large I us my powder coating gun. I have been using you load data. I am going to Power Pistol next. I also have a Lee 145gr mold in 40 cal that I was thinking trying. What are some more good powders to try.
Title: Re: Powder Coated Bullets
Post by: The_Shadow on September 19 2016 02:52:25 PM MDT
BE-86, CFE Pistol, AutoComp, Accurate Arms #7 #9, Silhouette, 800X (dense flakes making hand weighing necessary).

Almost all pistol powders will work, but it becomes a balance of how much powder is being used, to obtain performance, staying inside safe pressures.  Bullet weights come into play because of the mass and friction and their length occupies space inside the casing so the powder has less space to do work thus pressures increase.

The uber fast powders like Bullseye, AA#2, TightGroup, HP38 just to mention a few, build pressure very fast and trying to shove heavy bullets and get them moving can cause the casings some stress.  Slower powders build pressures with residual energy to continue even as the bullet starts moving and stress on the casing can be less.

Keeping these things in mind can help with the proper balance for economical loads with fast powders vs. higher velocity performance loads with the slower denser powders.
Title: Re: Powder Coated Bullets
Post by: Pumpkinheaver on October 09 2016 06:37:54 AM MDT
I use the Lee 175 TC bullet as well. Mine weight right at 180grs after being coated. My typical charge is 10.3 grs of Blue Dot. They shoot very well from my Glock 20 with no leading and good accuracy.
Title: Re: Powder Coated Bullets
Post by: gehlsurf on October 27 2016 07:13:50 AM MDT
Sorry to be the new here, bUT are you guys talking powder coat.... like the paint?  What's the advantage?  Kind of home made jacketing?

Thanks for the advice and patience, haha
Title: Re: Powder Coated Bullets
Post by: sqlbullet on October 27 2016 07:43:13 AM MDT
Yes, powder coat paint.

Everything you want to know about it here:  http://castboolits.gunloads.com/forumdisplay.php?184-Coatings-and-Alternatives

Advantages: 
    Better tolerances in the load spec before problems like leading occur
    Less messy than lube
    Faster than lube if you are happy with the as cast diameter
    Rainbow of color lends some style options
    Some think these are better for gas systems

I have become a big fan of powder coating.  In fact, I will probably buy an ES gun the next time Harbor Freight has a good sale on them.
Title: Re: Powder Coated Bullets
Post by: The_Shadow on October 27 2016 07:47:50 AM MDT
The Powdered Polyester paint coatings are tough and some have been found to work well for bullet coatings that do two things.
1st they prevent bullet alloy or lead from being in contact with the barrel bore so there is no leading.
2nd is the frictional coefficient is reduced so there is less heat transferred to the bores.

Not all of the powder paints are good for bullet coatings, depending on their composition.  Some were causing wear (not sure which).

There are several methods to coat the bullets, electrostatic paint gun, dry shake on powder and liquid transfer, then bake at the appropriate  temps and time for the product used...
Title: Re: Powder Coated Bullets
Post by: sqlbullet on October 27 2016 08:02:10 AM MDT
It has been hypothesized by some that certain black colors might increase bore wear since graphite is used to produce the black color.

I read a test report that seemed to disprove that hypothesis, but the author was clear that his test data was limited.
Title: Re: Powder Coated Bullets
Post by: blaster on October 27 2016 04:21:00 PM MDT
I always thought graphite was a lube itself. I wonder why it would cause more wear?
Title: Re: Powder Coated Bullets
Post by: sqlbullet on October 27 2016 09:46:23 PM MDT
I just went back and re-did a bunch of research on this...It was not graphite, it was a product called carbon black that is used in Harbor Freight matte black.

To give you an idea how much I buy into that, I have a lb of HF black and three more lbs of other matte blacks.
Title: Re: Powder Coated Bullets
Post by: gandog56 on October 28 2016 07:13:08 AM MDT
While I do not cast my own bullets, I have been using coated bullets for years as an alternative to expensive jacketed bullets. I am a firm believer in Precision Bullets and shot one of my best ever targets using them in 10mm. I've experimented with a few other brands and pretty much liked them all. I load them all to lower end jacketed recipes as long as I keep them below 1300 fps I get no leading in my barrels. I get some funny colors on my patches when I clean them, but no problems. They are a cheaper alternative to jacketed and usually plated, and really don't cost a whole lot more than regular cast. All I have to do is adjust my Lee powder through expanding die to give the cases a slightly bigger bell so I don't scratch the sides during the seating process.
Title: Re: Powder Coated Bullets
Post by: gehlsurf on October 28 2016 08:54:47 AM MDT
Wow!! This is cool as hell!! I eventually would like to cast my bullets (currently cast everything for my shotguns), very innovative on whoever thought of this!

Different color would be a great way to seperate different loads, subsonic, range, full nuclear, etc.  I currently do this with my shotshells, clear for buck and bird, slugs are always in all green shells.  Helps when carrying multiple loads for hunting multiple game
Title: Re: Powder Coated Bullets
Post by: warzone66 on December 05 2016 04:30:55 PM MST
M60 Tanker, did those lead bullets happen to be round nose? And if so what was the coal, please?

Sent from my SM-G935P using Tapatalk

Title: Re: Powder Coated Bullets
Post by: Benchrst on December 05 2016 07:03:36 PM MST
Warzone

The 145gr LEE mold is a SWC, and the 175gr is a TC.