If your bullets are properly sized to the groove diameter of your barrel, leading with hard cast bullets should be minimal if at all. The gas check will also ensure that as it acts in effect, as an increase in bullet base hardness. A "wrench" if you will, to engage the rifling without stripping in the bore.
Slug your barrel and chamber throats to determine the proper size projectile you will need for your pistol. Ideally, your chamber throats should be at or slightly larger in diameter than your groove diameter of your barrel. If the throats are larger, use that measurement to specify what diameter cast bullet you will need.
If you are just getting into cast bullet shooting, may I recommend Beartooth's Technical Guide which is loaded with great info on getting the most out of cast bullets in pistols and rifles.
HI TRAPPER, ONLY THE DIMENSIONS OF YOUR SRH WILL DECIDE IF ITS GOING TO LEAD. AS CONTENDER POINTED OUT YOU WILL NEED TO DO SOME MEASURING TO FIND HOW DIMENSIONALLY CORRECT THINGS ARE FOR CAST BULLETS. WHEN THEY FIT LIKE THEY ARE MEANT TO BE YOU WILL NEVER LOOK BACK. OR AT YOUR BORE WONDERING WHAT ITS GOING TO TAKE TO EVER GET ALL THAT LEAD OUT. IF YOU NEED HELP ON HOW TO CHECK THE DIMENSIONS OR THE SLUGGING PROCESS FEEL FREE TO ASK. AS THERE IS A GREAT WEALTH OF KNOWLEDGE ON THIS SITE TO HELP YOU GET THE ANSWERS YOUR WANTING. HAVE A NICE DAY. JIM.
As so well pointed out, bullet fit is everything when it comes to prevention of leading. Also, make sure that all traces of jacket fouling are out of the barrel before shooting cast... regardless of who's manufacture, as copper jacket fouling will greatly promote leading in a barrel that otherwise would not lead foul at all!
Most folks with the .454 S. Redhawks report pushing properly fitted gas-checked Beartooth's to absolute max with little or no reports of any kind of leading!
Enjoy! A very well built piece that should serve you well!
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