First range trip today with both the Chiappa Spencer carbine in .45 Colt and the Magnetospeed barrel-mounted chronograph.
cartridge overall length and bullet shape. While this rendered it a no-go with Federal 225gr SWC-HPs (and I checked with both those and Blazer GDHPs), it was 100% smooth sailing with Magtech 250gr LFN cowboy ammo. This was just function-firing; accuracy work will have to wait 'til next week. Ejection is controlled by how vigorously you work the lever and is slightly to the left-rear. Low-cut tops are definitely not advised.
Anyhow, look for more stuff on both the carbine and the chrono soon.