I don’t have enough real testing experience to give a quality reply, but…

Do you cast? In that velocity range you should be able to make a cash hollow point reliably expand, especially experimenting with different alloys. I’m not familiar with many 41 molds, but I’d bet Miha makes something that would work, and they come with, I think, four different pins to adjust cavity shape and depth.

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https://facebook.com/M2bKydex/

https://www.midwayusa.com/product/1000615128?pid=720277

https://www.midwayusa.com/product/1010403667?pid=775135

perhaps a bit of sticker shock will be experienced.....

The $1.44 per before tax and shipping for the loaded rounds sounds rather exorbitant until you notice the component bullets themselves are $.82 before tax and shipping !

I use these too but not quite up to 1200fps.

https://quality-cast.com/41-cal-215-gr-swc/

is for your .41, any good cast bullet will do the job---expansion or no. I believe that would be true with any suitable pistol caliber.

Now, that's what I believe never having shot a deer with a handgun. When that finally happens, I may well be humbled.

I started using it in my .41 around 1990 when we moved to Missouri. Before that time I shot a lot of deer with cast bullets. Normally with a cast bullet a good hit through the heart/lung area resulted in a hard run for a relative short distance til blood pressure dropped. But hunting in Missouri, if I shot a deer and it ran 50 or 100 yards onto the neighbors property, I may not have been able to recover it. I wanted something that dropped them faster and settled on the 210 gr. XTP at 1400/1450. I shot quite a few deer with it the 20 years I lived in Missouri and it worked well. Typical was the time I eased into the woods and had a buck stand up in front of me about 30/40 yards. I had a clear view and shot him just behind the front leg about a quarter way up the body. He made a strong leap like they do when they take off running, but when he hit the ground instead of running he just piled up in a heap.

I've had good enough success with it that it is the only jacketed bullet I run in the .41.

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Ele era velho.
Ele era corajoso.
Ele era feio.

I have taken two dozen whitetails and one cougar using the Black Hills XTP-loaded .44 Magnum. All one shot kills. Perfect performance. (Shot placement has a lot to do with it!)

I don’t have any experience with .41 but a Keith HP cast soft will expand at upper 44 special velocities, and most jacketed 44 bullets are a bit stiff for optimum performance in the special.

I use 210 fr XTP'S with very good results on whitetail.