Sport45
Member
I'll second the recommendation for an inertia bullet puller and c-clamp. Pull bullets from your HBWC cartridges and save them. Dump each powder charge back into the cartridge it came from. Pull bullets from your 158gr LRN cartridges and dump the powder back into the cartridge. Then press a HBWC bullet with the hollow base out over the 158gr cartridge load. That should get you a 148gr HP zipping along smartly. You can load the 158gr bullets over the HBWC powder charges for practice loads. I looked at my load data and 158gr cast loads are all greater than max listed loads for the 148gr HBWC and substituting a lighter bullet will not cause increased pressure. I think this is safer than trying to "eyeball" powder charges when splitting 10 into 8 or 5 into 4.
DO NOT MIX POWDERS BETWEEN THE HBWC AND LRN CARTRIDGES! The powders used may not be the same and you NEVER want to mix powders.
A powder funnel would be handy, but you can make do with a piece of paper folded into a cone with the bottom cut off.
(And try soaking your phone books / newsprint or whatever you're going to use in water for 24-48 hours prior to shooting it. Bundle and tape it dry and toss it in a bucket or ice chest full of water and let it soak thouroughly.)
DO NOT MIX POWDERS BETWEEN THE HBWC AND LRN CARTRIDGES! The powders used may not be the same and you NEVER want to mix powders.
A powder funnel would be handy, but you can make do with a piece of paper folded into a cone with the bottom cut off.
(And try soaking your phone books / newsprint or whatever you're going to use in water for 24-48 hours prior to shooting it. Bundle and tape it dry and toss it in a bucket or ice chest full of water and let it soak thouroughly.)