29-5 classic question

[blackhawkkid308]

I have a beautiful 29-5 classic full under lug 44 with an 8 3/8” barrel and I shot it yesterday for the first time. I used my standard loads of 250 and 300g LSWC that I shoot in my other 4 smiths and get a little leading in them but this 29-5 was severely leaded for throat to barrel end like I have never seen before I had to wedge the handle of my Lewis lead remover to be able to pull it through and the screen was completely covered with lead. Had to pull it through several times to remove the lead. Never seen this before. Any ideas

 

[stansdds]

A few ideas. First, it could be a velocity/pressure issue with your loads. If the lead is soft, then driving them too fast can cause excessive barrel leading. If they are hard, then driving them too slow or at least with insufficient pressure to make the lead conform to the internal surfaces of the barrel and create a seal will cause excessive leading.

There could also be a constriction in the barrel where it threads into the frame. This constriction is caused when a barrel is over tightened in order to get the barrel rib and front sight into the 12 o'clock position. With a clean bore, inspect the bore looking for this constriction. You may also be able to detect a constriction using a jag and bore cleaning patch.

 

[HamHands]

Shoot 2 cylinder's full of copper jacketed SWC's and leading should be gone...

Hard Casts Keith's never seem to lead my .44Specials or Magnum revolvers due to the hardened lead no doubt. But I've had it on my .38Specials. The aforementioned remedied any remnants of leading.

 

[smithra_66]

I have a beautiful 29-5 classic full under lug 44 with an 8 3/8” barrel and I shot it yesterday for the first time. I used my standard loads of 250 and 300g LSWC that I shoot in my other 4 smiths and get a little leading in them but this 29-5 was severely leaded for throat to barrel end like I have never seen before I had to wedge the handle of my Lewis lead remover to be able to pull it through and the screen was completely covered with lead. Had to pull it through several times to remove the lead. Never seen this before. Any ideas

Two thoughts come to mind. 1. your barrel is rougher on that gun than the other. 2. what kind of lube are you using? If they are commercial bullets, many time the lube sucks. I use SPG lube (made for Black Powder cartridge rifle competitions, but works great with smokeless too).

That stuff has eliminated any leading i get in all my guns, even at magnum velocities.

 

[jcelect]

Powder!

The powder type and amount can cause the leading you mentioned. If your powder is too hot it will melt the base of the bullet and this molten lead then splashes out against the bore and sticks. Using pure lead this will occur at a lower velocity because pure lead melts at approx 600 degs. Alloyed lead is harder and this temp goes up!
jcelect

 

[rays44]

You have two choices.
One: you'll have to go down the rabbit hole to find the problem. I would start with measuring the cylinder throats. Next is to match the lead hardness with the chamber pressure of the load. The rabbit hole can be deep my friend.
Two: Shoot copper plated bullets (X-treme or Berry's). Problem solved.
Good luck.

 

[stansdds]

You have two choices.
One: you'll have to go down the rabbit hole to find the problem. I would start with measuring the cylinder throats. Next is to match the lead hardness with the chamber pressure of the load. The rabbit hole can be deep my friend.
Two: Shoot copper plated bullets (X-treme or Berry's). Problem solved.
Good luck.

Or use powder coated cast lead bullets.