Powder coating Lee c309-200r

[weeple2000]

I understand that the Lee c309-200r is a bore rider. If I powder coat it I might have issues. If I load a dummy round, will I be good to go if it chambers?

[SvenLindquist]

With my NEI borerider I have found that you cannot PC the nose or it won't chamber. I float the PC on water and dip the back of the boolit in. Set aside, let dry, then bake.

https://i.imgur.com/X2OHhdj.jpg


Some 9.3s I did that way for a tight throated Ruger No. 1 in 9.3x74


https://i.imgur.com/TedtAuX.jpg

[Bama]

Explain how the float procedure works. First time heave heard of this procedure

[bmortell]

Ya my heavier weight bore riders i also powder coat and when you chamber and take one back out you can see the start of the rifling where it dents the PC about a thousandth deep. Only thing you would need to take note of is if it engraves so much that it stays there when unchambered but thats usually not the case and its fine.

[SvenLindquist]

Explain how the float procedure works. First time heave heard of this procedure

You put 1" of warm water in a pie pan and sift the PC powder (it floats) on to the water. You p/u the boolit by the snout and dip it straight down into the water as far as you want the PC to be up. Pull it straight up and the PC adheres to the wet part of the boolit. Set on some wax paper, let dry and bake.

[bmortell]

I should have also said check if it pushes the bullet in the case when chambered. if it don't seat the bullet further and it don't stick in the riffling when unchambered theres no need for further action imo.

[weeple2000]

Is tumble lube a better option for a bore rider then?

[bmortell]

I meant further action as in trying something else. slight engraving on the bore ride portion is fine unless It causes the two possible problems I said. just make some and check I wouldn't discount it without trying first.

[44Blam]

You put 1" of warm water in a pie pan and sift the PC powder (it floats) on to the water. You p/u the boolit by the snout and dip it straight down into the water as far as you want the PC to be up. Pull it straight up and the PC adheres to the wet part of the boolit. Set on some wax paper, let dry and bake.

That's a cool technique.

[SvenLindquist]

With any boolit I have tried (30, 35, 9.3, 40 & 45) that is a true bore rider, IF you PC the nose, it will not chamber in a SAMMI spec chamber.,

[Sig556r]

You put 1" of warm water in a pie pan and sift the PC powder (it floats) on to the water. You p/u the boolit by the snout and dip it straight down into the water as far as you want the PC to be up. Pull it straight up and the PC adheres to the wet part of the boolit. Set on some wax paper, let dry and bake.
Whoa! taking hydrodipping to the next level...thanks for the info

[Kraschenbirn]

Trust me, whether or not you can PC the Lee 309-200R depends upon the chamber/throat of rifle you're loading for. That boolit, PC'd and sized .311 is the 'go-to' for my 30-40 Krag but won't chamber in any of my 'modern' .30 cals. On the other hand, I have another bore-rider design...the Arsenal 309-188PC (196 gr. from #2 alloy)...that, with its .299 nose, was designed to be coated and shoots near-MOA from my Savage M10.

Another option would be to get an NOE push-thru sizer with .298 and .301 nose bushings and size the bore-rider nose before applying powder coat and, then, again after baking.

Bill

[Dieselhorses]

Could adjusting the seating depth compensate for the "bore hugging" without compromising pressure? I know the closer you are to rifling the better groups you get. BTW that is a cool work around SvenLindquist!

[Joby]

That’s a great procedure. I must have been living living under a rock again. I’m trying that method right now.
Thanks much. JS

[weeple2000]

So I attempted to chamber a dummy round. It didn't go. I will try another dummy using the float method. The boolit in question is the Lee 200 in the OP.

[weeple2000]

Reading about this a bit I think that there are a couple things going on. A bore rider bullet is one that has the bands in the groove and the nose sits within the bore. So I think there are probably other bore rider designs where the boolit won't sit out far enough to have issues chambering. In fact, if I look at the Lee designs for 309's from 150-200 grains, the noses all look to be the same relatively speaking. I suspect that the front of all of those bullets will ride the bore. Won't they? Now if you PC them and they chamber, you'd have PC riding in the grooves, but not actually lead, for the nose of the boolit.

The tl309-230-5r and c312-155-2r on the other hand appear to be tapered designs that wouldn't be bore riders.

Let me know if I'm missing something here.

[alfloyd]

I had the same problem.
I built a sizing die for my RCBS sizer that had a dia of 0.300 inch.
I then size just the bore riding part of the slug to 0.300 dia inch.
It is an extra step, but it works.

Lafaun

[d4xycrq]

As Bill mentioned, it all comes down to the rifle's throat. I bet most rifle throats are too tight for the LEE 200 powder coated - my Savage 110 won't even think about chambering these, even with deep seating.

As an experiment, I cast up and powder coated a couple hunnert of these 200 grainers to see if I could get a M1 Garand with a trashed bore to shoot better. (Pie Plate size groups at 100 yards). This Garand is a Blue Sky Korean return with a sewer pipe bore. Throat like the Holland Tunnel. The Koreans used corrosive ammo. My Garand swallows these powder coated critters no problem. So how does it shoot? Welp, if winter ever ends here in SE PA, I'll be the first to know.

Ray

[weeple2000]

I guess the next thing I'll do is load a dummy round before powder coating just to make sure it chambers. Then I'll try to PC just the bands using the water dip method.

[popper]

I tried this with HF red and it didn't work, ( the PC settled on the bottom) Smoke's poly may work better. Several methods have been tried, spray only the bands, tape over the nose & s&b, mix with acetone and dip, cover nose and dip in jig coating rig. Someone even coated with adhesive and dipped. Others have used VHT ceramic high temp paint on the nose portion of the cavity. What ever works for you. My solution is a mould that is proper size.

[weeple2000]

So I was able to chamber a dummy. I didn't PC it or lube it at all. I just wanted to know if it would chamber. Beforehand I tried to stick the front of the boolit, the bore riding part, into the bore of the barrel. The nose didn't entirely enter the barrel.

Well, when I chambered the dummy round, it was a bit snug. I was able to close the bolt but it took some ... encouragement ... to get it closed. It did extract when I opened the bolt, a bit easier than when it went in.

I would like to avoid purchasing a more expensive mold if possible. I am just getting into casting right now. Am I asking for trouble if I load up a ladder and look for an accuracy node? I am going to try the float method to PC the bands only. Otherwise I will use BLL.

I took a pic of the boolit. As expected the rifling is engraved on the nose.

237488

[weeple2000]

I reread the thread and realized that the answer to the last post was earlier in the thread. That I should be good to go. I have some hydro dipped boolits drying now, I will bake them tomorrow.

[Walter Laich]

wonder if you can bake them while still wet? All you be getting is a bit of evaporation and possibly some steam

[weeple2000]

I did try dipping some. I was impatient and didn't wait for them to dry. I am not sure if that was the cause, but the coats weren't completely even on all of the boolits. Some had a side that didn't coat very well.