If the 30 carbines were not so shaky, which causes accuracy problems, and were properly loaded I believe it would have generated a lot more interest among shooters. I got one for my tiny wife, Judy, back in the 60's and she killed quite a few deer with it. But I took the junk off the foreend so the barrel would float and attached the action to the stock with a screw the way "rifles are made". It immediately became a rifle. Very accurate. She never cared if the deer were running or standing, one shot and she dropped them, and I mean dropped. The hollow point winchester factory ammo we used then acted like varmint bullets and took out most of the chest cavity contents, but never went through.
Sorry, I don't have a picture to the carbine bullet, but meplat is a little smaller than the FN, the ogive is longer and more graceful, and it performs best with 130 gr. It should be gas checked for your use, by which I mean you should send them out with all promptness, which will be a pretty well full case of 296 or H110, with velocity in the area of 2200 fps. Make the bullets hard, so they don't expand, i.e. water quenched ww or Lino. If you use lino, or other commercial casting alloy with advertised hardness of 16 bhn plus, add a small amount of ww at least, to get some arsenic, to make it heat treatable. Then water quenching from the mold will up the hardenss of these rich easy to cast alloys.
If a bullet this light expands it will go to well over double diameter and act like a varmint bullet, which isn't what you want for defense purposes. The Carbine bullet loaded to at least 2000 fps will punch something on the order of a one inch diameter hole through a deer or 'similar' sized 'dear creatures', which will quickly terminate your need for self defense in that particular situation.
When loading for power, watch it that the cases aren't getting battered, which indicates too fast a bolt action, or max potential for the action. I've driven this bullet at 2400 fps from Judy's carbine, with excellent accuracy, no leading and perfect functioning, but am not recommending that as a steady diet, though I don't think it would really hurt the gun. At 2000 fps the gun will live long, which is more important and a bit more power.
With all gas piston operated autos watch closely for lead buildup in this area, if if you are getting ANY, change the load so you don't. This is the reason I recommend a gc bullet, but also use LBT bullet lubricant and if you get any leading anywhere in the barrel or gas piston, lap the barrel. Judy's little gun had to be lapped when I started loading cast for it, as the bore was cloudy, which is in fact fine rust bumps, and lap out quickly, using the LBT lap kit. (Gas operated rifles which have just a rearward facing gas port which blasts into a cup on the operating rod aren't as suseptable to lead build up as the piston type. This includes the SKS and Ruger Ranch rifles. But don't allow lead in them either, as continued lead blast will build up in time and can only be removed chemically from the vertical part of the gas port. The horizontal part is easily cleaned with a proper size high speed drill bit.
