Since I’m sizing afterwards, is there any issue doing two coats of PC? My reason is some uneven coverage on one batch. I think the answer is no, but before I mix the double coated in with others I thought I’d ask a captain obvious question. Thanks.
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Since I’m sizing afterwards, is there any issue doing two coats of PC? My reason is some uneven coverage on one batch. I think the answer is no, but before I mix the double coated in with others I thought I’d ask a captain obvious question. Thanks.
I have double coated plenty of times. If you’re mixing them with single coated you’ll likely have minor variances in weight. For pistol I doubt you’ll be able to tell the difference.
Thank you very much, these are big 220 grain 323471s for my 8x57. Have a great day.
Quote:
Originally Posted by TyGuy
1 and done with me. I have never had the need or requirement to double coat. It could lead to unbalanced weight? Or the sun rising in the west?
Who knows?
But if you do not see any deviation in performance with 2 coasts....go for it.
OOC: what caused your uneven coating ?Quote:
some uneven coverage on one batch
Only half cure the first coat so that the second coat bonds to the first
I coat as thin as I can, I add powder as I shake to get an even coat. but it's not pretty as your car paint. If it has thin spots, it's OK, the polymer is still there. Putting heavy coats on a bullet does not ensure the coating is even, it can make the bullet somewhat out of round. I coat to get a covering, but no more.
I double coat when using Harbor Freight paint. No problems at all doing so.
I’d test some as is before doing more work.
I usually try and knock any loose powder off and get as thin and even a coat as possible. It’s worked even in 450 Bushmaster at 1700 FPS. Occasionally a bullet will slip through that has thick coverage on spots or covering half. I’ve never noticed any difference in performance.
Most important for me is to take my time with coating the bullets. I make sure there is as even a coating as possible, particularly with bullets for rifles, not so much for handguns. And make sure there is no powder on the bullet bases. I quench in a bucket of ice cold water to bring up the BH number. Lube with Imperial wax then size.
I tested PC on or not on base, no difference. PB or GCd.
No issue with 2 coats then sizing. Works for me.
No problem with two coats. However the boolit enters the chamber, it comes out of the muzzle round.
I do the shake and bake PC coating. No matter how careful anyone is with this process, it has its issues with accuracy, mostly for long range. That has to do with the non-uniformity of the powder coating, particularly on a grease groove bullet. I think it will be a bit better with a ppb slick. I don't think these coatings are as good as a high-tech coating, and all will be hard to beat a paper patched or lubed bullet. IMHO.