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Post by nvcaller on Jun 27, 2019 8:30:44 GMT -5
I don't make my own bullets , so when I purchase them I buy hard cast bh18 fired at 1100fps. My 315gr at 1330 I use gas checked bullets to be safe. If I go coated can I forget the gas check? And if I go coated will it ruin the sharp edge cutting a hole.currently I don't have any leading problems , just looking for pro's and con's hunting and performance as well as velocity.
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Post by nvcaller on Jun 27, 2019 8:40:39 GMT -5
Sorry forgot to ask powder coating how does it effect load and pressure?
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Post by oddshooter on Jun 27, 2019 9:30:32 GMT -5
It sounds like you don't have a problem, but are interested in options. My experience with powder coating has been good. I still enjoy doing a batch. Clean, shiny barrel after shooting.
Your specific question is about leading at 1330fps if you go to powder coating and drop gas checks. I can only imagine that trying it is the only way to find out.
I've had leading at slow speeds and I've run 1600fps soft lead without gas checks and saw no leading on those either. Critical dimension matching seems to be the key to all good shooting. Small diameter pills going through larger diameter cylinders and barrels always seem to lead on me.
That 1330fps speed and above could see some leading without gas checks. You've proven that gas checks work, not that they are required. Lately, I've run powder coated 180g 327FedMag up to 1550fps without gas checks, but with powder coating, and saw no leading. Your pills are almost 3x that size in a different gun so I don't know if I can even use that data and extrapolate. I've done 180g 357max naked lead and got away with it. That's not my usual style, but was done for kicks and giggles. I think that one has perfect matching dimensions.
Prescut
Try one and then look for leading. It's not a catastrophe. Just hard to clean.
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Post by oddshooter on Jun 27, 2019 9:43:32 GMT -5
I haven't changed any powder loads because of powder coating. There are some folks who tested barely higher speeds with PC claiming better lube and cleaner barrels the reason for the increase.
I believe I do get better obturation (filling the grooves) with PC because I have increased the diameter of the bullet. I have even used multiple coats on .451 bullets to bump them to .454 diameter. I've had medium success with that technique. I didn't think it would work at all. PC also has allowed me to reduce hardness. I'm running under 15bhn most of the time now.
And if any of the above is correct, that would increase pressure slightly as well. Exactly how much is out of my territory.
Prescut Maybe Sixshot will be cruising through who has some real world experience.
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Post by bradshaw on Jun 27, 2019 10:09:53 GMT -5
I haven't changed any powder loads because of powder coating. There are some folks who tested barely higher speeds with PC claiming better lube and cleaner barrels the reason for the increase. I believe I do get better obturation (filling the grooves) with PC because I have increased the diameter of the bullet. I have even used multiple coats on .451 bullets to bump them to .454 diameter. I've had medium success with that technique. I didn't think it would work at all. PC also has allowed me to reduce hardness. I'm running under 15bhn most of the time now. And if any of the above is correct, that would increase pressure slightly as well. Exactly how much is out of my territory. Prescut Maybe Sixshot will be cruising through who has some real world experience. ***** Prescut..... I second your doubt that multiple bakes of POWDER COAT will improve the bullet. Thickness of coating may start to very, introducing a slight flywheel effect. Another negative, increasing thickness of powder coat way weaken the skin, inviting abrasion in forcing cone, etc. Note , I have not tested the idea, nor yet seen any reason too. David Bradshaw
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Post by nvcaller on Jun 27, 2019 11:57:42 GMT -5
I really am new to this powder coating do you lube the PC bullet? Or can you lube it after?
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Post by leftysixgun on Jun 27, 2019 12:21:21 GMT -5
No lube on a PC bullet.
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Post by sixshot on Jun 27, 2019 12:51:38 GMT -5
With or without gas checks, you are always rolling the dice. Sometimes you can get great accuracy without them & sometimes best accuracy comes by using them, whether it's a powder coated bullet or a lubed bullet. I always try to get by without gas checks but there's no denying the fact many times a gas checked bullet will out shoot a non checked one. I hot rod my 327's & my 357 Maximum so I use gas checks 99% of the time. Could I get by without them, I do sometimes but if the bullet style calls for a gas check I use it. The Bradshaw/Martin that I need to get back to testing is a prime example! I'll state it again, I am truly amazed at how fast I can shoot a soft, powder coated bullet, I'm still in shock after about 6 years, I just keep going softer. My alloys have changed several times & are still changing. The 2 targets I posted a while back are a prime example of a soft, fast PC 44 bullet, just not possible with a lubed bullet. Both were at 25 yds, rested off the knees. No need for multiple coatings of PC, if you need a bigger bullet just powder coat & then don't size it, you will get better results. Works for me at least. Also as mentioned, no need to lube a powder coated bullet, you've already lubed it! Good shooting to all.
Dick
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Post by nvcaller on Jun 28, 2019 7:42:34 GMT -5
Is there a type of powder coating that stands out ? I have seen several types an a lot of bad reviews of the moly type . Seams like the high tech coating is popular with 3 companies is it any good?
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Post by wheelguns on Jun 28, 2019 15:17:07 GMT -5
I use smoke’s powder with the shake and bake method. If you go on cast boolits forum, under vendor sponsors, you will see a guy named smoke4320. He has a pretty good tutorial on the process. He also sells high quality powder. If you go to mp-molds, they also have a very good article on powdercoating. The hi tech is a good coating. I have shot hitech coated bullets, but have not applied it myself. I think, not sure, that it is a little harder to apply and must be sprayed on.
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Post by matt56 on Jun 29, 2019 11:50:14 GMT -5
I use smoke's clear and the shake n bake method also.
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Post by sixshot on Jun 29, 2019 12:12:00 GMT -5
I use the shake & bake method & started out with Harbor Freight Red & for me it's worked fantastic, sure wish they hadn't discontinued it! A couple of forum members have sent me some so I'm in good shape for a while. I've also used Smokes4320 in the Jet Black for a long time & it's also worked great. Just bought another 3 lbs from Smokes. You can also set up a spray system using a box but I've never tried it, the shake & bake is simple & works very well, whether it's in a plastic bottle or in the tumbler. Also the toaster ovens are cheap. Anyone not powder coating probably has a lot of lube on hand, and I'm one of those guys that has a lot of lube on hand. I'll do something with it someday but I'll never go back to conventional lubing, ever. One of the biggest reasons is how soft you can run a plain base HP & not get leading, even at quite high velocities. I'm doing it & it still surprises me. Just not possible with regular lubes. On deer, if you want expansion, you need it to come fairly quick, a deer isn't very thick or hard to kill. So, that bullet needs to lean towards the soft side. Of course you can go too far & fail to get penetration & we all know that penetration rules but with powder coating you can get both expansion & penetration without leading. All this with a plain base bullet. With the bigger calibers expansion really isn't necessary most times, the caliber kills.
Dick
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Post by sheriff on Jun 29, 2019 14:18:38 GMT -5
I started with HF red and bought up a good amount.. Never saw the need for any of the others. Kinda grown fond of the 'red' bullets.
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Post by Markbo on Jun 29, 2019 17:21:32 GMT -5
I have heard Harbor Freight has discontinued the red PC. Smoke is contactable on castboolits.gunloads.com
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Post by nvcaller on Jun 29, 2019 19:34:30 GMT -5
Just shot today and was wondering glock 45 hard cast do they shoot PC bullets? I have a 41 in 45acp . Looking at lone Wolf barrels for hard cast.
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