I bought some of Matt's Bullets to Load in 44 special .
They are the 250 Grain Hollowpoint Plainbase that has a Big Hollowpoint ,Basically the same bullet as a Lyman .429640 but Plainbase and I ordered mine in .432
The Bullets I am told are 20:1 and I noticed when making up a few dummy round's that first off the Expander on the Lee 3 die set that I have that the case expander was not opening the case enough or deep enough so I will be ordering a larger one to solve that problem.
I also Noticed that the seating stem is making the Hollow point smaller as Pressure is applied to start seating the bullet.
I figure that at least some of this is caused by the expansion on the cases not being enough and when I get the new case expander a lot of that may go away.
However I may decide to go with an even softer lead hollowpoint say a 40:1 or may even try just a so called pure lead bullet.
I would like to know how yall modify the seating stem from a round nose to a round nose Flat Hollow point bullet shape ?
I remember Modifying the seating stem on another set of dies 30 Plus years ago for use with Bullets I cast from an LBT WFN mold ,I think I remember that I used some form of JB weld(either the putty or the regular JB)and the bullets were much harder(Water dropped clip on wheelweight's)But dont know if that Modification for the flatpoints will work for the soft Hollowpoint's .
I bought these bullet's for the Huge HollowPoint and so dont want the seating of it to lessen the size or shape of the Hollowpoint as I want all the expansion I can get at the 900 to 1,000 FPS that I will be shooting them from my Rossi 92 16 inch Carbines Barrel.