Roll Crimping Tumble Lube Bullets

QBall45 · January 13, 2010, 03:53 PM

I'm looking to order a mould to cast 357/38. I've been happy with Lee's Micro Band Tumble Lube mould that I have for my 45.

I am wondering about roll crimping this type of bullet design. I know that many bullets are designed with a crimp groove. How does it work with the Micro Band design? There is really no "crimp" groove.

DavidAGO · January 13, 2010, 11:08 PM

I cast and load the 148 gr wadcutter tumble lube and the 158 gr SWC tumble lube. I have started crimping with a fairly light crimp in the topmost groove. In the case of the wadcutter, that means about 2 mm of the bullet is above the crimp, it is not flush with the top of the case. Shoots very nicely. Obviously, check the OAL with your load.

DavidAGO

res45 · January 14, 2010, 12:00 AM

The crimp grooves for the Lee TL 38/357 SWC is right under the front driving band thats where I crimp mine. Shoots very accurately in my Ruger BH.

If your 38/357 pistol case are different lengths and your roll crimping you might have a problem hitting that groove exactly each time.

QBall45 · January 14, 2010, 12:31 AM

Thanks guys.
Now I just have to make up my mind & decide which bullet weight/design I want. Whichever it ends up it will be one of the tumble lube designs.

res45 · January 14, 2010, 12:58 AM

Here is some I cast,you can see how they look.

Bones507 · January 14, 2010, 03:28 AM

Thats a nice looking bullet there, Res. Whats the mold you used ?

QBall45 · January 14, 2010, 07:14 AM

Thanks for the pic.

January 13, 2010, 03:53 PM	#1
QBall45 Senior Member Join Date: April 5, 2008 Location: South Central Minnesota Posts: 584	Roll Crimping Tumble Lube Bullets I'm looking to order a mould to cast 357/38. I've been happy with Lee's Micro Band Tumble Lube mould that I have for my 45. I am wondering about roll crimping this type of bullet design. I know that many bullets are designed with a crimp groove. How does it work with the Micro Band design? There is really no "crimp" groove.

January 14, 2010, 12:00 AM	#3
res45 Senior Member Join Date: September 15, 2007 Location: NC Posts: 753	The crimp grooves for the Lee TL 38/357 SWC is right under the front driving band thats where I crimp mine. Shoots very accurately in my Ruger BH. If your 38/357 pistol case are different lengths and your roll crimping you might have a problem hitting that groove exactly each time. __________________ The Reloaders Network discord Channel https://discord.gg/Nafuzht

January 14, 2010, 12:58 AM	#5
res45 Senior Member Join Date: September 15, 2007 Location: NC Posts: 753	Here is some I cast,you can see how they look. __________________ The Reloaders Network discord Channel https://discord.gg/Nafuzht

January 13, 2010, 11:08 PM	#2
DavidAGO Senior Member Join Date: October 7, 2008 Location: Magnolia, AR Posts: 340	I cast and load the 148 gr wadcutter tumble lube and the 158 gr SWC tumble lube. I have started crimping with a fairly light crimp in the topmost groove. In the case of the wadcutter, that means about 2 mm of the bullet is above the crimp, it is not flush with the top of the case. Shoots very nicely. Obviously, check the OAL with your load. DavidAGO

January 14, 2010, 12:31 AM	#4
QBall45 Senior Member Join Date: April 5, 2008 Location: South Central Minnesota Posts: 584	Thanks guys. Now I just have to make up my mind & decide which bullet weight/design I want. Whichever it ends up it will be one of the tumble lube designs.

January 14, 2010, 03:28 AM	#6
Bones507 Senior Member Join Date: January 18, 2007 Posts: 132	Thats a nice looking bullet there, Res. Whats the mold you used ?

January 14, 2010, 07:14 AM	#7
QBall45 Senior Member Join Date: April 5, 2008 Location: South Central Minnesota Posts: 584	Thanks for the pic.