Winchester Components 350 Legend .355 Diameter 180 Grain 100 RDs Power-Point Projectile
On the 5.56 brass question – you can expand the necks out to 35 cal as has been done long before the Legend, and when fired in the 350 Legend they expand to fit the chamber just in front of the case web, looking about the same as fired brass from some of the looser hunting rifle chambers I’ve used. However, after trimming the brass to square up the case necks, the brass ends up about .050″ too short for the Legend chamber – no go, can’t use it that way.
Winchester Components 350 Legend
Again, Seems Winchester is underloading their factory stuff and the Hornady loads seems HOT. With this info I assumed ~2200fps as a safe max for the 180 PP. The Hodgen data lists Lil Gun starting 23g (2049fps) and max 25.5g (2213fps). I loaded up 24g (2257 fps), 24.5g (2288fps), and 25g (2359 fps). I only shot one round of 25g as I had the primer cratering around the firing pin and velocity was through the roof .
Winchester Components 350 Legend
I dropped back to the starting load of 23g and got velocities noted in the picture below. I have never loaded a cartridge so sensitive to seating depth both in terms of accuracy and velocity as is evident by the groups.
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