Hello, 1911crazy. Not a Mod. 29, but a Mod. 57, .41 mag..but still a N frame. I used to use this in IHMSA silhouette in the early 1980's..won a few state championships with it. Now for the chickens & pigs , I used the Lyman 220gr. 410429. For the turkeys & rams, I had to go to a 210gr. jacketed for better accuracy. I figured with practice & match loads..cast bullets only..I had put over 2 1/2 TONS of lead thru that revolver! This isn't counting the jacketed bullet loads. My lead load was 18.5gr. H110, the jacket load was 20gr. H110. All the loads I ever fired in this bought new revolver were handloads..until a friend let me shoot 5 commercial Win. jacketed loads thru it...they had alot more recoil & muzzle blast than my own handloads.
After putting all these loads thru it, I began to notice a slight movement in cyl. after firing the jacketed loads..the cyl. was jumping the locking bolt. We tried stiffer bolt springs..but the cyl. would still ocasionally "float"..but only with jac. loads..never with lead.
I haven't shot IHMSA in nearly 30 years..still have revolver though..In future, if I do use it again, I will stick with the lead loads..plenty powerful enough for whatever I need.