BB tipped boolits

[Blammer]

Ok, I've read about a few who've done it.

Drop a BB into the mould to plug the HP then cast and get a BB tipped HP.

Lets see some pictures.

[R.M.]

BB's float. How do they stay in the bottom of the cavity?

[Hanzy4200]

What is the practical purpose of this? Surely has no bearing on accuracy, and anyone who would do this to a self defense round is asking for trouble.

[Pb2au]

Many years ago, I drilled out a cavity in a maxi hunter and drove a bb into it. I really didn't notice anything spectacular.
And yeah, wouldn't the bb float to the top of the mold? Physics still work right?

[Echo]

I'm guessing that the alloy will set up before the BB has much of a chance to move. Whatever - I'm not going to do the experiment!

[Larry Gibson]

I'm guessing that the alloy will set up before the BB has much of a chance to move. Whatever - I'm not going to do the experiment!

That is exactly what happens. Back when I had a 311410HP mould I cast a lot that way. Also still do with the 311041HP, 323471HP and a 257283HP. Note all of my moulds used had/have tapered noses that touch the sides of the BB and keep it centered over the HP. I'll see if I have any around cast.

Larry Gibson

[geargnasher]

Nothing like experience trumping theory. :drinks:

How did they shoot, Larry? Any BC or trajectory improvement that you noticed?

Gear

[Larry Gibson]

Blammer

Found a 323471.

Larry Gibson

9468294683

[Larry Gibson]

Nothing like experience trumping theory. :drinks:

How did they shoot, Larry? Any BC or trajectory improvement that you noticed?

Gear

How did they shoot.......you tell me?

I used them to 600 yards because the HPs are cast softer for hunting. Never did a side by side comparison. Probably will get around to measuring the BC one of these days but have to cast some more. All this was done before I acquired the Oehler M43. So much to do......so little time.........

Was aiming at bottom 1" square diamond to zero rifle (Yugo M24/47 w/Leupold 6x) top 2 shots and then made scope adjustment and shot 5 shots. Data is for the 7 shots; 31 gr IMR (milsurp) 4895 with a 3/4 gr Dacron filler, 1865 fps, SD 7 fps, ES 18 fps.

Larry Gibson

94684

[JSnover]

For a while you could buy "ball-assisted" ammo for 25acp. The little hollowpoints didn't do much. Engineers thought the ball would help expansion when it was smashed into the bullet on impact. As I understand... They still didn't do much

[geargnasher]

Looks good to me! Thanks for the reply, that might be the solution to a little problem I'm having.

Gear

[Shiloh]

What would be the purpose??

Shiloh

[bhn22]

Nothing like experience trumping theory. :drinks:

How did they shoot, Larry? Any BC or trajectory improvement that you noticed?

Gear

Except.... I tried it with a 311041 Lyman, and a 358156 Ideal, the the BBs floated for me. I also had serious misgivings about doing this with any bullet intended for a tubular magazine.

[Blammer]

well, instead of a BB, you could use a piece of buckshot. pure lead, tadaa instant soft nose. :)

[jaysouth]

Hey, hold my beer n' watch this. I knew someone who glued .22 CB caps into the cavity of a .45 ACP HP. The rim/base was exposed and was supposed to detonate on contact and provide violent expansion of the soft lead HP. Apparently the trick did not work as planned. So much for retards playing with guns.

My .45 ACP loads of Saeco 085 at 850 fps hit hard enough so that no expansion is necessary.

[C. Latch]

well, instead of a BB, you could use a piece of buckshot. pure lead, tadaa instant soft nose. :)

Couldn't you just mash a lead BB into the HP of a bullet you'd already cast?

[Larry Gibson]

Except.... I tried it with a 311041 Lyman, and a 358156 Ideal, the the BBs floated for me. I also had serious misgivings about doing this with any bullet intended for a tubular magazine.

They worked with my 311041HP mould with the few I cast. Note I mentioned the importance of the cavity ogive at the nose has to be smaller than the BB. The BB has to fit tight in the cavity nose. Otherwise the alloy gets under it and pushes it over and up. I cast several thousand 311410's for use in my M1 Carbine. Purpose for me was simply to plug the HP hole so casting can go faster with the one mould I had. Same with the shown 323471; just an easy way to cast a solid with the HP mould. Wasn't difficult and the rejection rate was quite low. I didn't use them to "enhance expansion" as why? Already had the HP mould which enhances the expansion.

Larry Gibson

[shaune1022]

I've drilled an 1/8" hp using the lil foster jig on a Lee 124 9mm and 175 10mm. Drilled 1/2 way down then used a larger (9/64"?) bit to countersink a hole for a 177" BB. Test fired straight down into a 55 gal drum filled with water, front half of boolit frags and back half even had a bit of a mushroom to it! BTW the alloy was 50/50 coww and soww wd.

[JSnover]

... knew someone who glued .22 CB caps into the cavity of a .45 ACP HP. The rim/base was exposed and was supposed to detonate on contact and provide violent expansion of the soft lead HP. Apparently the trick did not work as planned. So much for retards playing with guns.

Never saw that but I remember a buddy of mine drilling out a .357 magnum HP, dribbling in a pinch of 2400 and pushing a LP primer down on it. It worked, sort of, blasting a slightly larger hole in an old stump. Interesting but not very impressive.

[guicksylver]

I know it is cabin fever time but really!