I think you're putting the cart before the horse with a couple of different things.
1000fps from a 240gr bullet with a 2" bbl is a pretty hot load. Hot load ='s high pressure & high pressure ='s leading.
I'd try a couple bullets and see if they lead, if they do try coating them with something like johnson's paste wax for furnature. Let it dry and load a test run of them.
Lead bullets are faster than jacketed bullets and most of the time, coated bullets are faster than lead bullets, hence milder/less pressure for the same velocity.
A little hp 101:
When choosing a hp you need to actually look at the hp itself. Same bullet with 3 different styles/types of hp.
The penta hp is at it's best in the 800 to 1000fps range.
The large round hp is 1000 to 1200fps
The small round hp is 1200fps to 1400fps
Another example of the difference in hp's.
A article from a 1953 rifleman magazine on 4 different hp bullets for the 44cal (4 of them with a cutaway picture to be able to see the actual hp size/shape). The article also shows how the different hp's expanded at different speeds when made from different alloys.
http://www.goodrichfamilyassoc.org/44_Special_Articles/44 spl - may 1953 american rifleman.pdf
I know a little about hp's in the snubnosed 44's, carried a 2" & 2/12" bbl'd bulldog (44spl) for decades and have tried allot of different hp's over the years in them. At the end of the day I've found that bullets in the 200gr to 220gr weight range made out of 8bhn/9bhn alloy are the best bullets for a snubnosed 44cal revolver. Bullets in that weight range with rival 45acp/5" bbl'd 1911 ballistics. Not bad for a snubnosed revolver.
One of my favorite 44cal hp's, it's a 200gr hp "thompson" design.
There's a 158gr thompson bullet for the 38spl/357 (358156) and a 250gr thompson bullet for the 44spl/mag (429244). The 429244 is hard to get enough velocity on it in 2" bbl's to make it reliable. Typical lyman hp pins for the 44cal are .156 for pistols and .140 for rifles. Allot of people don't know this and buy a hp mold thinking they are the same because the pin looks the same. Anyway, that h&g #142 200gr hp is actually a well designed bullet. It has a .160 hp pin that makes a deep (solid version is 220gr) hole. With an alloy around 9bhn it expands extremely well in the 800fps to 1000fps range.
Another favorite hp for the snubnosed 44's, a 220gr hbwc. People turn the 148gr hbwc's around all the time and use them in 38spl's. This just happens to be the 148gr hbwc's bigger brother.
That bullet was shot from a snubnosed 44spl.
For any slow moving bullet you want a large deep hp, the faster the bullet goes, the smaller the hp. I currently own/use/shoot 7 different hp molds for the 44cal's along with swaging my own jacketed hp's.
A 265gr home swaged jacketed hp, as you can see the hp is huge but shallow.
It is designed to put the smack on anything it gets a hold of 75yds to 100yds down range. That's why the test at 1100fps into wet paper @25yds. Full house loads will be doing 1100fps @ 75yds and that's how that bullet will perform @100yds.
If I was making that bullet for 7yds/30ft for a 44cal snubnose it would have the same hp design but be in the 220gr/225gr weight range.
Next time you go shopping for hp's the 1st thing you need to do is figure out how fast they will be going and then choose a hp design/shape/depth that will have the ability to perform at those velocities. The other thing to keep in mind is that it's better to have a under expanding hp than an over expanding hp. If the hp doesn't open or clogs and doesn't open you still have a bullet that penetrates. That's another reason I like to use bullets in the 200gr/220gr weight range in the snubnosed 44cal's, speed and penetration.
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