What I'm after is a die that will expand a .30-06 case that has been trimmed off just below the shoulder out to accept a .452" bullet. I have searched to no avail as it seems no one makes a bottle neck cartridge with this bullet diameter. I'm essentially making a rimless 460 magnum for a bolt action rifle and need the case mouths expanded before fireforming as the round will headspace in the case mouth. I already have a 45 acp barrel and want to increase the potential and make it more useable for me.
Need some advise on case expanding a tapered case to make it straight walled
- Thread starter sawzall
- Start date
I make up my own expanders in my lathe, if you know someone with a lathe or even pay a machine shop, it only takes about 15-20 minutes. Just start with a 5/8 (IIRC or is it 9/16?) fine bolt and 15 minutes later you have an expander plug.
Only bullets I know of in .452 are pistol bullets for the Colt and Casull, don't know of any .452 rifle bullets. Did I miss a new rifle cartridge out there somewhere?
Only bullets I know of in .452 are pistol bullets for the Colt and Casull, don't know of any .452 rifle bullets. Did I miss a new rifle cartridge out there somewhere?
I was thinking the same thing, considering this is how the 44 AutoMag was built, using a .473 case head cartridge and a .429 bullet...............473 to .452 only leaves .0105 for case wall thickness, with zero taper. HHHHMMMMM...............
I'm copying the build from this thread here: h ttp://forums.gunboards.com/showthread.php?248024-Introducing-the-460-SB-Magnum only on a Savage short action. The cases blow out to .480 not .473. I seriously considered 450 Bushmaster but dies and brass are non existent at this time. Rare as hen's teeth in the US and nothing in Canada. I can find none anywhere. I could make brass from 284 Win cases but at $75/50 cases it's not worth it to me. I have tons of once fired '06 on hand. This can be loaded with 460 S&W dies. Bullets will be Hornady 240 and 300gr XTP Mag and also custom swaged 270gr bullets made from 40S&W cases. I have a few ideas to build an expander plug I'm going to try today.
Well with .012" neck thickness, that's adds .024" to the .452" of the bullet making the business end 0.482". How is this going to work with a reverse tapered cartridge? I looked at that thread and it seems 30-06 brass is not the right parent cartridge for this wildcat, I would use something more appropriate.
