Re: 44 magnum jacketed bullets
I gave up shooting plain lead bullets in almost all my guns. I got tired of digging lead out of the barrels. I even kept the velocities below 1000 FPS but some guns still leaded up. I tired several brands including the '"hard cast" type, local manufacturers and nation wide brands.
I went to plated bullets from Rainier. They don't lead up the barrel, shoot as good as any other bullet I have tried, and are relatively inexpensive. For jacketed bullets in many calibers I turn to Remington or Winchester "Bulk" bullets, usually packaged in baggies rather than boxed. They also work fine. I even use them in my 45-70 rifle. The Bulk Remington hollow point 300 grain bullets actually shoot more accurately than boxed Speer or Hornady 45-70 bullets in my gun (Browning clone of Winchester 1886 lever rifle).
I do have to shoot plain lead bullets (actually swaged bullets, which are notoriously soft and WILL leave lead in the barrel if driven too hard) in my S&W Model 52. It uses 38 Special cases with hollow based wad cutter pushed all the way inside the case (its amazing to see a semi-auto gun feed rimed 38 special cartridges with NO lead sticking out of the case). But at the 770 FPS load level there is no lead left in the barrel.