I had casted up a bunch of conicals from my new custom LEE mold. The mold was designed for the White rifle, but my interest was really peeked because the weight of the conicals is less then the 500 grains I like, and when reduced should put them somewhere around 430 grains I figured. Which I was then thinking, the other inlines might shoot them or even the 1:48 twist rifles. They actually weighed out around 445.6 grains on average. And I measured them today with my new digital caliper and they are .5050 on the head.
I bought a press from LEE and ordered a custom .504 sizer to make all the conicals uniform. I am waiting on the custom sizer. And I sat there looking at those hundreds of conicals and couldn't stand it any longer. So yesterday afternoon, I tried to see if they would slip down the barrel of the White Ultra Mag. Well they did.
I could not take it anymore, so I grabbed up the rifle and powder and a box of unlubed conicals and headed outside. I smeared some lube on the first one and loaded 70 grains of Triple Se7en 3f. I had no idea where they were going to hit, and also noticed that some of the conicals I was shooting should have been thrown back in the pot.
70 grains was not working. They were sending fliers all over the place. So I dropped the charge to 60 grains of powder and they worked a little better. But I was not happy. So I then jumped the charge to 80 grains of Triple Se7en 3f and they finally started to group. they were hitting a little low and to the left, but they were grouping. All the shooting was done at 50 yards.
I have a lot of things I want to try to make them a great accurate shooting conical, such as different powders, wads, sizing, lubes, etc.. so it should be a lot of fun.
The .508 proved to be a very poor guess on my part, trying to read an old plastic caliper that does not do a good job anymore. The new one shows them as .505.