Modified 240 MK

[Alleycat]

I took .075 off the tip of a 240 MK and cut an x pattern in the hollow point of the tip. The cut was just to the lead. The jacket went 4 inches in and stopped. The core(177 gr) penetrated 18 inches of wet news print where it exited and went 5 inches into the back stop. The core turned into a U shape almost immediately. 1070 fps.

[ranger dave]

why waste your time making a dumb dumb bullet your acc. is gone you cant insure you do the same thing twice. just buy a soft point

[hugginsvilleH&A]

I say cool

[Alleycat]

This was a proof of concept bullet. If it would have had a bonded core I think it would have worked great. The hollow point itself was small and by its self only produces stress fractures along the tip. With the jacket pre cut it peeled back like a high velocity bullet. I am contemplating spending the money to build a bullet that will expand reliable every time unless I can get a manufacturer to do it. I think it is wise to experiment, don't you? If you are using a 230-250 gr soft point that expands 1.5 times it's original size let us know. Now I know if I build a bonded core bullet with a .020 jacket that has been serrated it will do what I want it to do. By the way the jacket went 1.45 times it's original size. I think it's cool too

[rumlover]

How did you make the cuts? I'd like to duplicate your experiment and test for penetration v/s deformation.

[Alleycat]

I used a dremel with the finest blade I could find to do the initial cut and then the X cut. I then cleaned the tip and loaded the bullet. I have a hollow pointing tool that I made from a RCBS flash hole deburring tool. I just turned it down to fit my Forster trimmer. I used it to finish off the tip and give the jacket a funnel effect. I did not get into the lead. If you would like, I will post some pics.