9mm cast bullets tumbleing....

[hoytinak]

I ordered some 9mm lead bullets reloaded them and they are keyholeing in every 9mm I own (6 different ones) from all different ranges. I measured some and they are all .353". Shouldn't lead 9mm bullets be .356"? Would this cause the tumbleing? If that's not it anything ideas on what else it might be? Thanks

 

[txpete]

oh...yea that sure would cause it and some good leading I am sure.I cast my own and size .356 and no problems with them keyholing.
keyholing is caused by
under sized bullets
out of round bullets
pressure being to high
bullets being to soft

I make my own alloy of wheelweights and linotype. mixed 9 lbs ww to 1 lb of lino.bhn runs 12-14 bhn.
pete

 

[Polkwright]

Keyholing is caused by an unstablized bullet. This can be from a couple of reasons usually related to how much the bullet is spinning and at what velocity. An undersized bullet would cause it as it would not engage the rifling enough to get sufficient rotation. In addition velocity could also be affected. Those bullets suck. You should complain.

 

[Nicholst55]

It isn't uncommon for commercial cast bullets to be undersize. When I buy some, the first thing I do is mike a random sample of 10 bullets, and then weigh them. Both exercises can be very enlightening. Mind telling us who made them?

 

[Polkwright]

It isn't uncommon for commercial cast bullets to be undersize. When I buy some, the first thing I do is mike a random sample of 10 bullets, and then weigh them. Both exercises can be very enlightening. Mind telling us who made them?

I've never really run into it. I guess I've been lucky....and I've bought many tens of thousands of cast bullets over the years. Go figure.

 

[red442joe]

They can be salvaged.

Joe

 

[Reinz]

They can be salvaged.

Joe

Like this 16 year old thread…

 

[no2gates]

This qualifies as the longest dead necro-thread I've ever seen.

 

[red442joe]

LOLz
I dint even notice!
Holy dead-cow Batman!

Joe

 

[kbaxter60]

This qualifies as the longest dead necro-thread I've ever seen.

TGT is timeless.

 

[hornetguy]

The problem is real, my friends....