Can you shoot both cast and jacketed without scrubbing the bore down between? I heard that cast bullet accuracy suffers if you have shot very many jacketed down the barrel.

I do both in my 44 mag Redhawk without much difficulty. I havn't noticed any accurracy problems switching from one to the other and back again. I do this particularly when shooting different distances. My cast load is good out to about 50 yds. before I have to start ot hold over, then I switch to jacketed loads witch are conciderably hotter for shots out to 100 yds.
I shoot a 250 grain hand cast Kieth bullet and 240 grain XTP.

Depends on how smooth the barrel is, and how much it fouls with the 'other' load. Lead can stick to jacket fouling and cause buildup, although jacketed bullets riding over mild lead fouling are generally OK.

I have read and heard many times that shooting a jacketed bullet after shooting lead one will clean out the gunk.. I don't know if it is true or not as I clean my guns quite a bit. I have shot cast and jacketed with no apparent problem or signifient build up of fouling. Try it and see what your gun will do for you. Worst case is you will have to scrub the bore after cast bullets. Also, if you drive the cast bullets too fast or the bullets are soft you will definatly get lead fouling. Use moderate cast loads. If you reload, try using some Lee's Liquid Alox. I have not had any fouling at all after using their product..

if you have lead fouling that is bad enough to affect cast bullet groups, you can shoot a three round group with jacketed bullets to clean it out, but don't expect a good group with these three bullets.

after those three jacketed bullets accuracy will settle down for either jacketed or cast bullets. If you have severe jacket fouling affecting accuracy you have to clean it down to steel to get best accuracy. There are good comercial cleaners to do this, most require some elbow grease.

The other option is to just give said firearm to me and know that it will have a good home.

Regards,
Gene

I always fire a cylinder of jacketed bullets in a revolver after using lead if there is any lead fouling at all. Especially if my carry loads are jacketed as the first 3 or 4 won't group until the lead and lube is cleaned out. Usually it is really hard to clean all the lead out that way as there is usually some left in the corners of the rifling. To get 100% of the lead out requires conventional cleaning. If you are able to dedicate a gun to just lead bullets than you should clean it scrupulously of all copper fouling. Several hundred rounds of lead loads usually season the bore and also polish it. You may have to clean the lead out several times until it seasons. After awhile it shouldn't lead at all unless there is a problem with the alloy or the lube. I don't like most commercial cast bullet lubes and have found that a light coat of liquid ALOX can often solve a stubborn leading problem. This seems to help alot with glock barrels.