Intercooler and I have been swapping info about various bullet designs. The Mountain Mold company has a online design program which you can design your own mold. Here is what I came up with as I manipulated the design parameters.
http://www.mountainmolds.com/ (http://www.mountainmolds.com/)
200 grain PLAIN BASE two lube grooves
Diameter 0.4020"
Total bullet length 0.6300"
Olgive Length 0.2650" (that should have the bullet seated with that much outside the casing with a C.O.A.L. of 1.2500"-1.2550" based on a casing length of 0.9900")
Meplat 0.28944"
(http://i1086.photobucket.com/albums/j441/_The_Shadow/10mm200grainPlainBaseBullet345bullet_zps7250f932.jpg)
(http://i1086.photobucket.com/albums/j441/_The_Shadow/10mm200grainPlainBaseBullet345bullet_zpsa0a14d98.jpg)
I thought the magic number was a Meplat >.300"?
0.3000" Yea kind of... This one is not that far from that and may feed better. But if you want 0.3000" you just increase to 75%.
0.4020" X 0.75 = 0.3015"
We want meplat we want meplat yeah!
200 grain PLAIN BASE two lube grooves
Diameter 0.4020"
Total bullet length 0.6270"
Olgive Length 0.2650" (that should have the bullet seated with that much outside the casing with a C.O.A.L. of 1.2500"-1.2550" based on a casing length of 0.9900")
Meplat 0.3015"
Ok here you can see there isn't much difference...0.4020" X 0.75 = 0.3015"
(http://i1086.photobucket.com/albums/j441/_The_Shadow/10mm200gr75meplatbullet_zps64317785.jpg)
(http://i1086.photobucket.com/albums/j441/_The_Shadow/10mm200gr75meplat_zps43b403d6.jpg)
Veryl (sp?) says and cuts his molds with a 90% of bore diameter meplat
http://www.lbtmoulds.com
I will have to take some measurements on my mountain mold 205 grain pills, but I think they are pretty close to your specs:
(http://fellingfamily.net/images/MM_205_FRN.jpg)
I still want 225-240gr :P
I would like to find a cast bullet 200 and 220 gr with no lube groves ( making it shorter - more room for powder - with a shallow hollow point in it ) than I could powder coat it. Dont want much do I ;D
Doug
They can be made that way, those would be very easy Nose profiled 0.4000" drill bit and drill your own mold blocks or even older worn or damaged blocks... :D
Like the man says, just drill 'em out.
http://www.mscdirect.com/product/details/01075696
I also want a "Cup/Dish" nose. Since the plan is to use them for Deer, Elk, and Feral Hogs. It helps broaden the wound tract without losing penetration.
NoNoNo - I don't want to get back into casting bullets again - I'm too lazy for that again - I'ed rather buy them and cut out the hard part all together. To be truthful, I hated casting with a passion. I did it for years back in the 70's - moved toGa in the 80's got rid of all my casting equipment when I moved down south, I gave my friend about 600lbs of lead bars and all my equipment, swore I;d never get back into it again.
Doug
I recently bought this 210 gr TC mold made by Palmetto.
(http://i58.tinypic.com/23vf909.jpg)
Very Nice looking mold, If you wanted just a little more weight you could have the bevel base cut to make it a squared base.
Just a thought Shadow - would a 180gr devastator hp mold with the lube groves cut out come up to about 200 grs ( kinda like thous bullets you sent me only in 180gr - if there is such an animal?)
(http://i283.photobucket.com/albums/kk296/SDS47/10MM/40-hp-401-a.gif) (http://s283.photobucket.com/user/SDS47/media/10MM/40-hp-401-a.gif.html)
and no I don't know where to find one :( do you? the 180 mold hp that is - I'ed be tempted to buy one and give it to someone to doctor up if they would make the bullets for a far price to sell to me hint hint Shadow ;D
Doug
The Lyman 40 cal/10mm Devastator was their 175 grain TC, with the HP pin giving it the big open HP, making it 156 grains in weight. Now "Obsolete", Why Lyman decided to quit selling that one is a mystery. They still sell a 9mm, 44 and 45 Devastator mold, no more 40/10mm.
So cutting the lube groove out of that Devastator Mold would be like taking a chisel to Michelangelo's "DAVID" :o
(http://www.wga.hu/art/m/michelan/1sculptu/david/david.jpg)
I'd have considered having a custom mold made at about 205 grains or 210 grains WFN, no lube grove (this will keep it shorter and be specifically a poly powdered paint coating), adding 0.333" long tapered 0.250" to 0.125" HP pins (this would be about 185 gr. or 190 gr). This will be one of those back burner projects... ::)
I went with the Lee 145gr SWC for my 10mm and the 115gr RN for the 9mm . Little over 4 weeks from major back surgery and I hope I can get some casting done. Plan on using dry spray Moly with Lee ALOX thinned and put over the Moly. I have about 150 lbs of #2 alloy and just about stole it I only have $50 in the 150lbs. I should be able to push these at decent velocities with this lube combo. I used to push hard cast 240gr 44 mags at around 1300 fps using 24grs of H110. I guess we will find out when I get a decent amount of bullets cast and ran through the chrono and check for leading.