I've shot thousands of round of 2.7grs Bullseye in .38Spl cases 30 years ago in both a 6" S&W M19 and a 6" Colt Python...no extra leading noticed. You might be thinking of powder fouling in the cylinders.I have .357 Nagnum cases plus firing .38 Special in a .357 Magnum revolver does lead to a propensity for lead buildup.
Be aware that this .38Spl wadcutter load was with hollow based wadcutters and not the double end/sided ones...and they were always loaded flush with the case mouth which was roll-crimped over the leading edge of the bullet....this is about as classic as it gets.
Agreed, I go with 3.5gr. under a 148gr. Speer HBWC, seated to the last grease groove. Works much better in my Colt 3-5-7 than the lighter load seated flush. For anything .38Spl/.357Mag .38Spl cases generally work as well and if it's a correct load - crimp, charge, primer, case, neck tension, all 90+% right - leading around the mouth-to-throat gap isn't an issue.That's a classic .38 load, but I prefer a touch more powder in a .357 case, especially with a long barrel. For my money, 3.0 to 3.3 grains will get you the best results.
Never had an issue with thatI have .357 Nagnum cases plus firing .38 Special in a .357 Magnum revolver does lead to a propensity for lead buildup.
Never had an issue with that
Would be my guess as well.I wonder if he is talking about the "crud ring" in the chambers.
This has always been so. The design is inherently better for accuracyI cast 5 different wadcutters and have another mold on the way. Hollow base are the hardest for me to cast but shoot the best.