Author Topic: Powder coated .257 bullets  (Read 5474 times)

mcc1961

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Powder coated .257 bullets
« on: January 28, 2016, 04:06:03 PM »
I tried powder coating some of my .257 bullets today.They came out alright ,how do you think they will shoot?



Monkeydad1969

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Re: Powder coated .257 bullets
« Reply #1 on: January 28, 2016, 04:11:26 PM »
Very nice.  Now I need a .257 barrel so you can send me some.

Joe
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mcc1961

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Re: Powder coated .257 bullets
« Reply #2 on: January 28, 2016, 04:17:07 PM »
Thanks Joe.

Motorhead

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Re: Powder coated .257 bullets
« Reply #3 on: January 28, 2016, 04:55:21 PM »
I tried powder coating some of my .257 bullets today.They came out alright ,how do you think they will shoot?

1st thoughts .... Major barrel fouling ?
But then again no clue on attributes of Powder coating, if it wears easily, melts under high friction etc ???

Sure do look bad ass tho  8) 8)
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mcc1961

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Re: Powder coated .257 bullets
« Reply #4 on: January 28, 2016, 05:05:58 PM »
I thought that it might gunk up the barrel but I watched YouTube vids and it is just the opposite effect .It actually keeps your barrel cleaner.It is baked on at 400 degrees and is very durable.Can't wait to try them out!

nielsenammo

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Re: Powder coated .257 bullets
« Reply #5 on: January 28, 2016, 05:13:49 PM »
I have been coating bullets for about a year now.  I coat my person bullets/slug for my personal gun to reduce leading.

I do not use powder coating because it does not coat even and if you use HP's too much powder gets in there.

Another method that is similar where you bake it on is to use Hi-Tek coating.  You can buy the powder version and just mix with acetone.  Very simple to apply and it makes a much more uniform coating.  I have tried both methods and HI-Tek is a much better option.

Here is where I buy my coating:
http://hi-performancebulletcoatings.com/hi-tek-powdered-coating/

Youtube has plenty of people applying it to see how it is done - less messy than powder coating too.
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mcc1961

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Re: Powder coated .257 bullets
« Reply #6 on: January 28, 2016, 05:29:08 PM »
How do you get the Hi TEK on ,do you use a gun?

nielsenammo

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Re: Powder coated .257 bullets
« Reply #7 on: January 28, 2016, 05:43:11 PM »
I take a squeeze bottle and mix the powder and the acetone as per the instructions in the bottle.  Then I use the squeeze bottle to apply on the bullets.  So once the formula is made up here are the basic instructions for applying.

I use a small bucket - like 2 gallon or smaller.  I put about 200 bullets (or more if small caliber) in there and squeeze a small amount - very small amount on top of the bullets.  Then I mix the bullets in the bucket for about 1 minute.  The sound they make in bucket changes when the solution has dried enough to stop.

Then I spread them on a sheet of wax paper and put a fan on them.  Here in So Cal they take about 10 minutes to dry.  Then I bake them for 10 minutes at 400 deg F in a toaster convection oven.  When done I take them out and let cool.  If I have more going in I put them in while this set is cooling.

I normally do two coats which does not take too long.

Couple of hints:

let completely dry before baking
let completely cool before re-coating
better to have too much acetone than too much coating

also, one coat is probably enough to reduce leading, but two coats make them look better and since I do only for me and not customers I normally do two coats.

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Alan

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Re: Powder coated .257 bullets
« Reply #8 on: January 28, 2016, 06:24:27 PM »
Being one who has used coated bullets before they were even popular (starting circa 1956), they can achieve a few advantages. They do increase barrel life, a fact t I think no one disputes. They also REDUCE velocity, but that can be reversed by a bit heavier loading. Bullet seating becomes more critical, and even bullet to land spacing. If you get it all just right, great. But... If you do not, the negatives far outweigh the positives. As an example, why don't the world's best benchers shooters use some sort of coating? The answer should be obvious, but it is just one more variable which must be controlled.

Now if we look at airguns, the velocity is so low, that any advantage is lost with coatings of any ilk. And, lead if a fairly good lubricant. For example, lead is the main ingredient in babbitt bearings. So why coat pellets? Well, if you can prove (no anecdotal information allowed) beyond doubt, that a coating (whatever it is) increases accuracy, distance, velocity, or any other attribute, then precent the (complete) data, and let the rest of us critique it.
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nielsenammo

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Re: Powder coated .257 bullets
« Reply #9 on: January 28, 2016, 08:33:34 PM »
I only answering to the spirit of the thread and don't care if people coat their bullets or not.  I only coat my bullets to reduce how much lead build up I get and it seems to really help in the big bore rifles.  Since I shoot several times a week a lot of rounds go through my guns because I am testing ammo designs.  I also don't coat every bullet so I have to clean my barrel more often if I don't.

I did some testing hoping for a velocity increase with coating. There was none, although, there was no decrease either.  I have noticed no difference in accuracy, good or bad, no velocity change up or down or any other change.  I do not remember reading anyone complaining of these problems on casting forums where you can a lot info about this.  My mold maker has told me that the bullets being made now days that more and more people are making no lube grove bullets and coating them instead because the coating requires no lube and you get no leading.

One thing I forgot to mention in the directions is to coat the bullets before you size them.  If you size them first the it closes some of the pores and the coating will not cover as well. I size all bullets after I coat them.
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Monkeydad1969

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Re: Powder coated .257 bullets
« Reply #10 on: January 29, 2016, 05:58:06 PM »
Thanks for the info, Nick.
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mcc1961

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Re: Powder coated .257 bullets
« Reply #11 on: January 31, 2016, 01:53:34 PM »
I did another batch today  and didn't size them till after they were coated and they came out a lot better.The first batch were sized before they were coated and they didn't come out with a good coating.

Monkeydad1969

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Re: Powder coated .257 bullets
« Reply #12 on: January 31, 2016, 05:36:53 PM »
Shows us some pics, Mike.  I'd like to see the difference.
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mcc1961

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Re: Powder coated .257 bullets
« Reply #13 on: January 31, 2016, 06:28:29 PM »
These came out better.Didn't touch these without gloves or size them before PC them.

Monkeydad1969

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Re: Powder coated .257 bullets
« Reply #14 on: January 31, 2016, 06:34:10 PM »
Yeah, those came out way better.  Good going Mike.

Joe
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