Lyman 452424 dropping light?

[Miata Mike]

I bought a used Lyman 452424 from a member here a while back and just got around to loading up a few to test. I never bothered to weigh any since they looked so good. Today I weighed a few sized and lubed bullets and found them to be 232 or 233 grains instead of 255. They shot just fine with 8.5 grains of Unique, but I wonder what the deal is? The alloy was probably wheel weight with some solder added.

Any insight would be appreciated.

[gimling]

did you do a BHN test?? also did u weigh them prior to the size??

[btroj]

Moulds often don't cast at the spec weight.

I take what I get and move on

[Miata Mike]

I have no method for testing hardness, and I didn't think to weigh them prior to sizing. Mighty purty boolits. :D


did you do a BHN test?? also did u weigh them prior to the size??

[Ben]

Lyman has used a wide variety of cherries during past years, particularly with the 424' series of .45 cal. pistol bullets.

Like btroj says above, if it shoots well, move on.

Ben

[MT Gianni]

If they are consistent that is more important than stated weight. In a worst case you may have to shoot the charging grizzly bear three times instead of twice.

[runfiverun]

http://castboolits.gunloads.com/showthread.php?202613-New-made-Lyman-452424
scroll down here and you'll see why there are discrepancy's.

[Miata Mike]

I doubt I will be hunting with this Redhawk. It is a harder to find 5.5" stainless. I will cast up some more tomorrow if I get some time and see what I come up with. It is my only .45LC and is only going to be a paper puncher. Didn't group all that bad for my first time out. 10 out of 12 within 4" at 25 yards open sights.


If they are consistent that is more important than stated weight. In a worst case you may have to shoot the charging grizzly bear three times instead of twice.

[Miata Mike]

I just posted on that thread. I love that hollow point boolit that Ben has posted!


http://castboolits.gunloads.com/showthread.php?202613-New-made-Lyman-452424
scroll down here and you'll see why there are discrepancy's.

[Miata Mike]

I poured 32 this afternoon. Kind of looks like the bottom driving band is thinner than it should be like someone may have milled down the top of the mould a hair? Weights of boolits ranged from 228.2 to 230.2 with most in the low 229 range.

I used the rest of the hot lead to cast a slew of 452460 200 grain SWC and they averaged 202.2 grains. I re-calibrated my scale today before weighing.

73572

[btroj]

That bottom band is WAY thin.
Either that was a improperly cut mould to begin with or someone took the top of the blocks off.

Looking at the side of the mould is the handle slot centered or isn't closer to the top than the bottom? That might help determine if the blocks were altered by a previous owner.

No more doubt on why that mould drops light.

[Ben]

WOW ! !

That bullet has way more lube groove and crimp groove than it does drive bands .

I'm with you Miata Mike , that rear drive band certainly looks very thin to me.

Ben

[Miata Mike]

I took a calipers to the handle grooves. Unscientific I know, but slot was .586 from top edge and .595 from bottom. Not sure if being .01" off center is normal or not. Top face of die blocks and sprue plate look perfect, so I have to assume they may have been redone.

I notice a couple of boolits in GLL's picture in the other thread have a narrow bottom drive band also.

They don't seem to shoot bad, so I will learn to live with them unless someone wants to trade me for a heavier weight Keith or SAA 270. :D