After seein several 17 HMR rifles blow up,I am worried about the safety of pushing a .17 faster than that.
A rim has to be thin enough to allow it to crush the primer,and that is the weakness in a rimfire.
After this round blew,I pulled several bullets,and weighed the charges.
Trying to duplicate it,I put as much powder as possible in a case as possible.and pushed a bullet in.
And it held fine.
The only thing I can figure with this one was It may have had WAY too much prime in it.
Notice how the case flowed back into the firing pin hole,part way into the ejector groove,and dang near seperated the case head,while blowing out the bottom.
It was fired in a 77-22 converted to 17,and it totally shattered the magazine,and cracked the wood on the right side.
I put the .22 mag barrel back on it,no one is trying to make a cruise missle out of that round.
As far as the .22 hornet goes,BUY ONE! I own 3 of them.
It is a very versitile round.
I load cast bullets with 3 gr.Unique for Quiet shooting @ critters,and squirrels,and can go up to the ballistic tip bullets.
Its main flaw is a thin case neck,uness you chamfer the inside,you can collapse the case,while seatinf the bullet.
(fixed it for ya Sharkey)