So I got out in the paddock today with some loads. I know Arthur you said go straight to 26gn of AR2207, and you were right, but couldn't help myself lol. Did a short ladder test per below. I did not get to change the lube on the Walker Cast bullets. There was no noticeable smokiness and the velocities and 26gn group were pretty adequate. i will try your recipe however next lot I get and see what diff it makes. Re the crimp and bullet movement issues, I had done the roll crimp as per post above with the Lyman die before the Lee FCD came to hand. Then, when it came, I ran them all thru the FCD at max crimp setting. I had the AR2207 loads plus some Trail Boss, some Red Dot and some Vhitavuori Tin Star. I started off with just 3 loaded in the mag with 2 when first shot was fired. Then progressed to 5 and 6. None of the bullets showed any sign of moving in the case which is promising. As above, I seated the bullet so the case mouth when crimped was up against the forward edge of the crimp cannelure.
I am only posting the AR2207 results. The Red Dot (actually not Red Dot but a close analogue) had good consistent velocities but very poor groups. The Tin Star I only loaded in 2's to gauge velocity as I was running out of projectiles at that stage. It seemed promising - up around the mid-1300fps. And it fills the case as much as the AR2007 so will do a proper range test of that down the track.
The Vortex Scout Scope is a new piece of kit for me and was really nice to use. The rail is a Pearson's TacRail specifically for the Rossi Puma 92.
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