The old Hornet has been a different kinda, unique round for generations. Early writers were using pistol primers with powders of the day. I've read Mic Mcpherson's stuff, Ross' stuff and others, all very interesting.
I'm in the JB camp using CCI 450 primers, Lil gun and now mainly Pw Pro 300 MP powder. I even opened my Hornets to K-Hornet and like that version better. It's easier to get enough powder in the case vs. the std. Hornet. That's just me, others will have different opinions,, which is pretty typical for this round. I rented a reamer and did it myself. I was careful and the chambers in two guns are identical.
Once you try 450's with Lil Gun or 300 MP, doubt you'll go back. The older guns were pretty slow twist, which is another challenge. 16, 14 or 12 twist makes a difference. And the mag length is limiting. I was able to alter my CZ mag, adding .1" COAL. That helps.
The Hornet is an interesting and challenging round. I've enjoyed working with mine.
DF.
