quick question, how fast are you pushing those deep h.p's from the 200grain slovenian mold? For 45acp?
I loaded some today with 5.5.gr of 231, they feed just as slick as a whistle in a sig.

I am green with envy.

Sorry for the late reply, been out of town.

I run various loads with that bullet; the top end is about 1100 fps in a full size 1911 or Glock without going into 45 Super loads, Power Pistol is your friend for those loads. This load is very similar to a 200gr XTP +P load, with pretty much the same velocity and charge weight.

Most of the time I run them about 1000 fps with Unique.

I also use a 190gr modified Lee bullet with a really big hollow point, and keep that at 700-800 fps for soft plinker loads.

thats what i was after. i have used power pistol at the top end for 200gr speer flying ash trays, and decided to tone them down.
the jacket was separating at the velocities i was doing.

I miss those flying ashtrays, those were neat bullets. You're right about needing to slow them down. My 190gr bullet is the same way, I made it with the old flying ashtray in mind.

The Mihec bullet takes a little more speed to open up, but has a narrower velocity window that it works in, if you cast with wheelweight alloy anyway.

I think I've posted it before - my cast bullet equivalent of the flying ashtray. It still opens to some degree all the way down to 600-650 fps:

Using that flying ashtray in my 45 Colt and real soft lead it opens up like your 900 fps picture and has great retention loosing less than five gr out of 280 gr.

as it often happens, few years ago i walked into quite a few boxes of the 200gr speer bullets, and bought them all. And they mostly sit there, as i hate to shoot them up at cow turds.
I ended up wanting that slovenian mold to have a low cost alternative for the same thing.
just loaded some of the hollowpoints to go at about 950fps.
will be happy if mine look like yours.

by the way, i sent this to a gunwriter friend of mine, as i sent him some 429421 powdercoated bullets to play with. He was wondering if there was an increase in velocity.

I checked back in my notes and:
model 29 s&w 4inch
310lee gas checked 44mag sized .431
1.60oal
13.5gr of 2400
1.976fps
2.954fps
3.963fps
4944ps
5955fps
6.989fps
same bullet same gun, same load but powdercoated:
1.round was off so dropped it
2.1053fps
3.1051fps
4.1054fps
not a lot but powdercoated did add some