[Jeff H]

I have loaded quite a few 158 SWC with a beveled base for my 357mag, and while there is a bit of leading after 100 rounds, it really isn't much of an issue to clean out (15g of 2400), but I have read that flat base bullets will lead less but I can't seem to find any 158g with a flat base.

I did notice Dardas has a 150g flat base SWC but I have never heard anyone mention it before so I have no idea if they are good or bad.

My question is if the flat base will really help or do you just deal with a bit of leading when pushing lead at 1500fps in a Blackhawk?

[Randy1911]

Supposedly the flat base will seal the barrel better, but I have shot both and could tell no difference. I stick with the bevel base because they load easier.

[Walkalong]

If you get the bullet hardness to pressure/speed right, as well as the bullet properly sized to your throats, and your throats are not undersized, and there is enough of a good lube there, you can run lead at 1500 with minimal to no leading.

Theoretically flat based bullets are easier to get no leading with. I have shot a ton of beveled base bullets at 1200 FPS and under with no leading at all.

I used to shoot Ruger only loads in .45 Colt in a Blackhawk. I was pushing 250 Gr beveled base bullets at least 1300 FPS (but had no chrono at the time) with no leading.

Dardas bullets have a good reputation. It certainly would not hurt to give them a try if the brinnel hardness is high enough to take 1500 FPS. Around 15 to 18 on the brinnel scale.

Missouri Bullets (http://www.missouribullet.com/results.php?category=5&secondary=10) has one, although it is beveled base. Folks around here post very positively about Missouri Bullets.