Silicone-Filled hollow point slugs?

[USAFANG6799]

How about cutting a cross section into slug along with silicone, which I didn't have any but cut a cross section.
These pics are the results.
The 738 and 740 are the FPS shot from my Kral NP03 .22 caliber at 2800 psi.

Yeah, that's exactly what I was referring to earlier.  There was a thread about cutting "crosses" maybe a year ago, with all sorts of interesting ways to do it efficiently.

I've done it myself, but the results were horrible.  As I wrote then,  the resulting slugs flew like drunken sailors looking for loose women.
"1 foot groups at 20 yards" would not be an exaggeration.  -  But Lordy, did they expand !  (even better than your results)

The main takeaway from that thread was that you need to reform the slugs in a press, after cutting them. Otherwise, the BC just drops off a cliff.  I don't own a press, and even if I did that seems like a ridiculous amount of work.

HOWEVER, if one DID have a press, and wanted to try this, then filling them with silicone in the end would be a great thing to try.
It would be pretty cool if some big manufacturer made something like that.  Surely it wouldn't be hard / expensive with the right machinery.

Glad you found this interesting and you referenced the thread that was done about a year ago. I remember it.
I used an exacto knife to cut the 'cross' into the slug which wasn't too tedious to do. Hunting doesn't require shooting a lot of slugs, pellets like plinking
so I do enough to load a magazine specifically for hunting.
I mediate the "slugs flying like drunken sailors looking for loose women" by using my fingers to close up the expansion, as close a possible to the original.
The shots I took were at 15 yards in my basement, and I didn't have an accuracy problem. I've shot them out to 25 yards with no issue.
Shot them in clay and the results were pretty intriguing to say the least.
This prompted me to go one step further to make my favorite hunting slug:

 

[kimoleto]

Corbin mentions the use of a special die in order to make huge cavities leaving a small opening (in the bullet tip),  I tried several approaches but never achieved it. I could not find something that allowed me to keep the cavity and avoid its collapse, tried a lot of plastics, rubber, silicone...no success. In the other hand the X and  Y cutters worked like a charm. Unfortunatelly I had to move and my new house is a lot smaller...no room for  "lab and tools", hope the covid situation improves and we return soon to "normality".