453 210Gr. RF (BD)

Thanks for the link Beagle333.  It appears that BD is not initials necessarily rather it is his handle on the castboolits website.  The history and rationale behind the design was what I was getting at with my question.

Here is the text of two posts (combined) by BD dated 5/21/2009 on the Castboolits website.  I hope this is ok, because this info is relevant to his design and should be archived with it imho.

“There’s a couple of things possibly going on here. The BDacp is a full diameter bullet with a “sharp”.320 meplat. This can lead to feeding issues in a couple of situations.

First: THERE ARE NO POWER TOOLS INVOLVED IN ANYTHING WE
ARE DISCUSSING HERE INVOLVING A 1911. You and your gun will be safer if you put the pistol on the shelf and the dremel in the safe. The amount of metal removal involved is at most a tenth or two of one grain, maybe .5 grain for throating.

One is a feed ramp with annular machining rings evident. because the meplat is “sharp”, it can drag on these rings slowing the slide so that it doesn’t make it fully into battery. in an extreme case a nose down round from the bottom of the mag may hang right up. Evidence of this can be a bump or flat spot on the edge of the meplat. The cure is to polish the feed ramp. There is a ton of info out there on “polishing” feed ramps. I’m NOT going into it here as the best method is pre-determined by the starting dimensions of the pistol in question. If it needs more than 10 seconds with a bit of 600 grit wet/dry paper on your pinky, You will need to think it through.

Another is that the full diameter boolit can contact the lands in a barrel with no throat. I’ve looked down a bunch of 1911 barrels and I’ve seen throats form non-existent to 1/2″, even among guns from the same manufacturer. Evidence of this is a slide that stops very close to being in battery, and can be tapped in. Also, “land” marks on the boolit of an unfired, ejected round. The cure is to throat the gun. Ideally, just to the point that cartridge will headspace on the boolit making for excellent accuracy. Throating a 1911 takes 5 minutes with a hand turned reamer. I have one that I’ve lent to a number of folks, unfortunately it is currently in Maine, with my 1911s, and I am in the PRNY.

The third common problem is the slide locking back prematurely. This is caused by the ogive of the boolit hitting the “button” on the inside the frame back of the slide stop as it comes up from the mag. I suppose you could call the slide stop a “lever”? This is typically cured by stoning down the back of the slidestop a bit to smooth it up. That button is commonly cast from a part made by several passes of a tool. The process can leave a little pyramid or “tit’ in the center of the back of the button. The trick is to stone that smooth without reducing the lip that catches the slide follower when the mag is empty. I also run a small drill bit through the slide stop pin tube, and twist it in my fingers, to put a slight detent on the rear face of the stop for the pin to seat in in order to lesson the chances of this happening, (or me bumping the stop up by accident. I think brownells sells a baby ball end tool specifically for this.

When I designed this boolit I was interested in maximizing the meplat and I went with the dimension that worked in all three of the 1911s I had on hand at the time. In my mind it was better to exclude, or fix, those guns outside of the parameters, rather than reducing the meplat to the point that it would work well in every example of 1911 out there. I never intended to mass produce these for a profit.

Although I designed the BDacp and really like it, I use the H&G #68 design for IDPA. Primarily because the 200 grainer just above major makes a lighter recoiling, quicker back on target, type load for practice and games. It makes a cleaner, easy to score, hole in the cardboard and it uses less lead to make, while using about the same amount of powder to make MPF.

I load the BDacps hotter for killing things, and the nose design helps me keep the two types of ammo seperate. I do take some with me for those occasional stages that involve knocking over a bunch of steel, or shooting through things.

For those who didn’t ask, when carrying concealed in town, I’m carrying Ranger RTs. The BDacp makes an excellant practice round for these, but concerning CC it’s the penetration thing IMHO.

Boy, this makes me want to move back to a free state.”

BD

Thanks for the research. I just wanted one ’cause it was a nice lookin little fat boolit in these pictures I found archived on CB. 

List updated.

List updated.

Did I miss this one?  I don’t see it in inventory, so I’m thinking it hasn’t been produced yet.  Just wondering because the Frankenstein mold is on it’s way to me and it was closed after this one.

Thanks for the reply Al.  I sure don’t want to miss this one.