I met with a home designer the other day and he ended up being all into wildcat calibers. He is a machinist on the side, and his dad is a machinest... He had dummy rounds for all kinds of stuf he had come up with and built some of them to shoot... 300 win mag brass straightened out (no neck, no bottle to the case) loaded 50 cal bullets (I think) in it and shot.. he said it it kicks like a mule but kills hogs deader than a rock.
9mm necked down to 30 cal with a 30 cal rifle bullet in it - super subsonic
243 version of a 300 blackout - cut case sized down to another caliber I forget...
took 4 cal brass, filled with lead, swaged them and made bullets out of 40 cal cases he shot in something he made up, that was pretty cool...
Just all kinds of oddball stuff...
Most interesting to me what he made a 308 winchester case out of stainless steel... but drilled out the "powder chamber" where the case had really thick walls and a small powder chamber area... his theory was a subsonic 308 has so much air space inside the round that he wanted to be able to condense the powder down closer together.. (the powder chamber in the case was like .224 diameter straight through from primer flash hole to bullet)... he said he got the 308 with that made up case down to shooting 300 fps... I'm not sure what powder he was using but it was not the popular trailboss...
Lots of other neat looking rounds he made up, some worthless, some that would be really cool to build a rifle in for fun... It was an interesting afternoon.. didnt get house plans done much..
9mm necked down to 30 cal with a 30 cal rifle bullet in it - super subsonic
243 version of a 300 blackout - cut case sized down to another caliber I forget...
took 4 cal brass, filled with lead, swaged them and made bullets out of 40 cal cases he shot in something he made up, that was pretty cool...
Just all kinds of oddball stuff...
Most interesting to me what he made a 308 winchester case out of stainless steel... but drilled out the "powder chamber" where the case had really thick walls and a small powder chamber area... his theory was a subsonic 308 has so much air space inside the round that he wanted to be able to condense the powder down closer together.. (the powder chamber in the case was like .224 diameter straight through from primer flash hole to bullet)... he said he got the 308 with that made up case down to shooting 300 fps... I'm not sure what powder he was using but it was not the popular trailboss...
Lots of other neat looking rounds he made up, some worthless, some that would be really cool to build a rifle in for fun... It was an interesting afternoon.. didnt get house plans done much..