Was wondering if anyone has a "best way" to remove these from
both steel and aluminum molds? Adjustable Reamers?
I have access to a lathe and Bridgeport mill with rotary table. Thanks
Was wondering if anyone has a "best way" to remove these from
both steel and aluminum molds? Adjustable Reamers?
I have access to a lathe and Bridgeport mill with rotary table. Thanks
Lathe would be my first choice though a BP with a boring head might be quicker to setup. In the lathe dial the hole in on the four-jaw chuck and use a stiff small boring bar to remove what you want. In the BP you would center on the hole and dial the boring head out iteratively to get to the diameter you want. Lathe is more flexible IMO because you can go up in and adjust band diameters individually. I don't think a rotary table brings anything to the party unless you don't have a boring head.
Just out of curiosity, why do you want to remove them?
The only amendment the Democrats support is the 5th.
I would agree with gzig5. A lathe, a 4 jaw, and a small boring bar is the way I would go. Assuming I was going to do it, that is.
I’m trying to get away from gas checks and try just powder coating at higher velocities.
I would like to try on multiple cavity molds(6-8) and use a reamer for the aluminum molds.
If I could center it in a mill and bring it down in the cavity that might work.
http://www.hollowpointmold.com Erik will modify your mold to your needs. Nice guy. Perfect work. Quick turn around.
"There's a Fine Line Between Hobby and Mental Illness"!
Thanks Irascible,
I have around nine 6-8 cavity molds to do and having it done for 100.00 per mold wont work.
I'm sure Erik does great work but I have the equipment to get this done. I'm just seeing if there is a shortcut
or someone has done this without indicating each cavity to mill it out.
Less trouble and expense to order a new mould cut to your spec from Accurate.
To paraphrase Ronald Reagan, the trouble with many shooting experts is not that they're ignorant; its just that they know so much that isn't so.
Got that right Dan! I’m going to play around with this on the mill.
If I come up with a short cut I will let you all know.
If the cavity spacing is the same for each of the 6 cavity and each of the 8 cavity molds, you could whip up a jig with a few stops and just walk the mold down the jig to hit each cavity. Then at least you would only have to indicate it once.
Just my thinking, but it isn't necessary to remove lube grooves from a bullet for PCing. I have only been PCing for a few years and I have purchased "no groove" PCed bullets and I have seen no difference in performance. I have loaded them to the same velocities, and during experimentation velocities upwards near max powder charges. I have removed gas check shanks and bevel bases on a couple molds and it was easily done on a drill press using a drill...
My Anchor is holding fast!
^^^^ THIS ^^^^... it isn't necessary to remove lube grooves from a bullet for PCing.
Just take off the GC protrusion in the cavity base(s).
Don't mess with anything further up the shank.
manufactures go to great length's to cut grooves into monometal
bullets,similar to lube grooves,to reduce pressure and bearing surface
seems to me that by PCing the boolit you are accomplishing the same
unless you just want to play with a mill or lathe you may want to leave well enough alone
Hit em'hard
hit em'often
Adding my 2˘ about leaving the lube grooves alone.
A lube groove gives the alloy somewhere to go as a boolit is being squeezed down, while inside the barrel. If there is no lube grooves, the alloy will move toward the top or the bottom of the boolit. If it moves to the bottom, then the bottom will likely become less perfect (distorted) and you may see a decline in accuracy. This is especially true with Rifle boolits.
Now, if you are shooting pistol boolits at 7 rds, you'll be just fine with boolits without lube grooves
~~~~~~~~~~~~~~
“If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun.”
― The Dalai Lama, Seattle Times, May 2001
I’m not too worried about the lube grooves, it’s the gas check shank that supposedly affects rifle range accuracy. I could see how it could do that as my bases are not perfect by any stretch.
Stock Drill sizes are not going to work for me. And I don’t see how you can get a presentable finish without polishing or using a reamer.
Powder coat will not replace a gas check at higher velocities.
Boolits !!!!! Does that mean what I think it do? It do!
PC does, however, significantly raise the pressures & velocities that plain-based/soft-alloyed bullets will stand being pushed.Powder coat will not replace a gas check at higher velocities.
Again, note:http://castboolits.gunloads.com/show...=1#post5001471
Last edited by mehavey; 02-21-2021 at 08:22 PM.
If you are modifying multiple cavities, the mill is the way to go. Indicate the part in for the first cavity and then just go down the line moving the X axis. The holes will have a consistent spacing, because that’s how the mold was made. The spacing is probably in MM.
I had a Lee mold I did that to. I had an old tapered reamer I modified to cut it. The base had a small flare to it but a trip through the sizer fixed it. Shot as well as it did with GC's at lower vel.
I agree with others that you keep the lube grooves. I also believe that the lead needs a place to go when it engraves the rifling.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |