no rifling maks on recover boolits????

[Gun Nut]

ok, i have a few post on her about my 40 s&w leading, but found out my boolits were being swaged down by my lee neck sizer. So got I got a lyman m die and honed out sizer to .402 and that has greatly improved accuracy and helped the lead problem,but when i recoved som of those boolits out of the dirt backstop they have no engravings?? they do have a little lube still left on them.

any ideas why no engravings?:confused:

[geargnasher]

I think Dean D. musta stole 'em when you weren't looking so he could trade Waksupi for some loob grooves, ya gotta watch those mods!

I also think you should shoot into a 5-gallon bucket full of crumb rubber mulch and report back.

Gear

[thx997303]

Measure outside diameter of the fired boolit, and length.

Chances are the boolit is smaller in diameter, and shorter in length than the unfired boolit.

The lead has to go somewhere when it gets reformed by impact.

[odoh]

To show my ignorance, could they have been shot thru a pistol w/o rifling? Like some use polygonal bores?

[geargnasher]

You might have something there, Odoh, those polygonal glocks leave flats on the boolits that are easily obliterated by a dirt berm.

[Bret4207]

Measure outside diameter of the fired boolit, and length.

Chances are the boolit is smaller in diameter, and shorter in length than the unfired boolit.

The lead has to go somewhere when it gets reformed by impact.

Smaller in diameter and longer or larger in diameter and shorter. Smaller and shorter doesn't make sense.

[shotman]

will go with bret on that
You didnt say what kind of gun Glocks dont like lead and if no rifling you better mike bore next is get an after market barrel that is right size

[Gun Nut]

:smile: its a S&W hand gun

[thx997303]

Smaller in diameter and longer or larger in diameter and shorter. Smaller and shorter doesn't make sense.

Really Bret? It doesn't make sense?

Take my recovered 45-70 boolit. Shot through a 6 inch piece of deadfall and recovered roughly a foot into the dirt behind it.

The unfired boolit measured .876" long, and had a diameter of .461" It's nose diameter was .330"

The recovered boolit measured .874" long, has a diameter of .458" and it's nose diameter is .361"

Smaller and shorter. I just left out the part of slight nose expansion.

Oh, and there are barely any visible rifling marks on this recovered boolit. However that may be a function of the marlin's rather shallow rifling.

[Doc Highwall]

The extra lead is in the expanded part. If you had recovered the bullet in a sawdust trap you would find that your .861" length would be longer.

[thx997303]

I know where the extra lead is.

I'm actually curious to see how much the boolit weighs, but I don't have a scale that goes high enough to weigh it.

Where'd you get .861''? I think you been switchin numbers around on me. :bigsmyl2:

[home in oz]

Gun Nut,

Sounds like a non-problem if your actions resulted in good accuracy.

Isnt that what we all strive for?

[44man]

Recovered boolit size and appearance depends on what it was shot into. The medium must not scour off the lead.
They might be fine out of the gun.

[Doc Highwall]

My mistake I meant .876".

[Bret4207]

Really Bret? It doesn't make sense?

Take my recovered 45-70 boolit. Shot through a 6 inch piece of deadfall and recovered roughly a foot into the dirt behind it.

The unfired boolit measured .876" long, and had a diameter of .461" It's nose diameter was .330"

The recovered boolit measured .874" long, has a diameter of .458" and it's nose diameter is .361"

Smaller and shorter. I just left out the part of slight nose expansion.

Oh, and there are barely any visible rifling marks on this recovered boolit. However that may be a function of the marlin's rather shallow rifling.

Yeah, you did leave out the expansion part. So it IS fatter, you just didn;t include that in your figuring. A boolit that is reduced in diameter will always be longer than it was before, and boolit made larger in diameter will always be shorter than before. The only way around those simple facts are forward expansion and shearing or other lead loss.

[thx997303]

Yeah, I guess I should have mentioned the expanded nose portion.

[KYCaster]

I know where the extra lead is.

I'm actually curious to see how much the boolit weighs, but I don't have a scale that goes high enough to weigh it.

Where'd you get .861''? I think you been switchin numbers around on me. :bigsmyl2:



If you don't mind mutilating the boolit, chop it in half with a bolt cutter and weigh both parts.

Jerry