Unless you have one or both in hand I’d have Tom at Accurate make you a copy of his 351-220B. I looked at casting for my Model 71 but lost interest in the project. I understand the RCBS mould makes a good bullet if you can find one. I think the RCBS is a gas check design and checks may be hard to find. Tom may be able to make you a plain base mould. 

Mike

Yes, I have an RCBS 348-200-FN mould.  

I cast my bullets from a homemade alloy of 95% wheelweight metal and 5% lead-free solder.  I use Hornady 0.348″ gas checks and I size the bullets to 0.349″.  They make a good practice load using 35.0 grains of IMR 3031.  Velocity is 1,717 f.p.s.  Recoil is light.

These bullets shoot well.  My notes say this combination will put five shots into 2½ inches at 100 yards, which is all my rifle will do.

But I don’t recommend this alloy for hunting because the bullets won’t mushroom at this velocity.  I shot only one deer with this load.  The deer was quartering away with little Gaston not far behind.  (In Ontario, deer hunting with dogs is allowed.)  The bullet quartered 18 inches through the chest cavity and exited without hitting any major bones.  It was a one-shot kill but the deer travelled 200 yards with a barely visible blood trail.  Fortunately, Gaston made her easy to find.

Here’s a pic of the RCBS 348-200-FN bullet and the doe.

If you’re having trouble finding a mould, I could cast you 50 or so and send them to you to try.  I’m in Canada.  It’s no problem for me to mail them but I don’t know if you’ll be allowed to receive them.  If you’d like to do this, check it out and let me know.

Pete Hynard