One of the things I have enjoyed with the Dillon 550 is changing things to improve loads or improve productivity. Until now I had my charging powder die in position two, so also had chargemaster scale on my left , powder checker cop in position three, so was seating my bullets for PRS rifle loads in position four, which was less than ideal but workEd
so I came across an article about using a Dillon powder check die from the 650 / 750 on a 550. This requires modification of 550 tool head by drilling a hole in it. I modified the first tool head by following instructions, which placed powder check die in position 3, powder dispensping die in position two. It worked, a small clearance problem with LED light in center hole, but fine. That is probably the set up I will use going forward on .223 where I use standard Dillon powder drop system and I am not manually dropping the powder. However looking at that set up, it was clear that if I moved the powder check die to position 2 the clearance issue at center of tool head would go away.
So I modified another tool head, as shown in photo. Manual powder drop in position one, powder check die in position two, seating in position three. I also relocated my chargemaster to right side of press. Everything worked out better for a right handed person. (A BL 550 would be even better, likely my next press)
I then processed two groups of 20 6.5 CM cartridges (experimental loads) and by the end of first 20 had the powder check die adjusted so it was not giving false signals.
Then I started a batch of 200 of my standard recipe for 6.5 CM. On the first 100 I had one false signal. Lower ram a little and back up and all good. On the second 100 I got another false signal on one, and then I got a real signal on case 61. I’ll cover that in another post.
So bottom line, with what I produced today I have enough 6.5 to get me through initial practices and two matches. Plus another 400 PCs of brass prepped and ready to go.
The powder check die did exactly what I wanted confirming powder or not without removing brass from press ( it gets tough to see powder level in a necked rifle case without removing case from press, especially as you get smaller to .243 and .223 diameters. You might be able to see it well with younger or better eyes, but I’ve been using bifocals for sixty years so even my young eyes sucked.)
Moving the powder check die to position 2 almost didn’t work due to interference with lever to advance shell plate. If I modify another tool head I may try to drill another location.