tcurtis
04-03-2008, 10:27 PM
I've been casting my own .45 bullets for about a year or so now using the Lee 200 grain SWC tumble lube bullet. I have been loading them with the bullets seated so the case just covers the last lube groove. My standard load is 4.9 grains of Bullseye. I seated the bullets in this manner because I didn't want any of the lube grooves exposed, nor did I want to risk the possibility of malfunctions due to the casing being crimped into a lube groove. I alternate between Rooster Jacket and LLA, though I prefer the Rooster due to ease of handling. I have yet to experience any leading. Bullets are cast from straight wheelweights.
The above loads shoot extremely accurately in my S&W M&P .45 and my S&W 945. I have not had any malfunctions and there are no signs of excessive pressures.
With most everything I load I try to load the bullet as long as possible to ensure OAL related pressure is kept to a minimum. When I started working with this bullet I just assumed that it should be seated with the top groove covered. The catridge OAL is around 1.190 give or take a couple thousandths up or down.
My question is to what depth do those of you with more experience with this particular design seat the bullet? Specifically do you cover the last groove or leave any of the grooves exposed?
Any information would be greatly appreciated. I've been lurking here since shortly after I started casting and have gained quite a bit of insight into the hobby.
Tom C
The above loads shoot extremely accurately in my S&W M&P .45 and my S&W 945. I have not had any malfunctions and there are no signs of excessive pressures.
With most everything I load I try to load the bullet as long as possible to ensure OAL related pressure is kept to a minimum. When I started working with this bullet I just assumed that it should be seated with the top groove covered. The catridge OAL is around 1.190 give or take a couple thousandths up or down.
My question is to what depth do those of you with more experience with this particular design seat the bullet? Specifically do you cover the last groove or leave any of the grooves exposed?
Any information would be greatly appreciated. I've been lurking here since shortly after I started casting and have gained quite a bit of insight into the hobby.
Tom C