Some very promising results from my new BLK

[Dolomite_supafly]

Well a few weeks ago I put together my bolt gun in 300 Blackout. From the begining I had planned shooting heavy cast bullets that I cast.

I bought the Lee 230 grain Blackout mold but could not get it to shoot ver well. I was told by a few, Caster and DLM37015, it was the boat tail. Well yesterday I decided to either fix the mold or ruin it. I took a chamfer tool and cut the outside down to ~.311 OD. That way it will make a straight cut. I took a clamp and used it to hols the Lee mold closed. I then chucked the chamfer tool into a drill press. I held the mold loosely so it would center itself. I ran the chamfer tool down into the mold, removing the boat tail.

After casting them I size them down to .311" and then tumble lube.

Here is how they look now with the boat tail removed.

The blue was so I can see how the sizing is working.

I am still working up loads but I am pleasantly surprized with this group. It is a 5 shot group at 50 yards.

This particular load, 8 grains of N110, had some rounds that were barely supersonic and some that were subsonic from the muzzle. I think if I reduce the load enough that all are subsonic the groups will shring even more.

I am casting using straight wheel weights. No special alloys or anything like that.

The best part is the cost. It costs me more to buy a box of CCI Minimags than 100 of these rounds. I am loading these for under .07 each. Not bad for a accurate, powerful load.

[jon29253]

Nice info. Thnx. What type rifle you shooting? Barrel length?

[Slpeod]

Vihtavuori N110 is some of my favorite.

[Caster]

I'm happy someone is getting results that doesn't raise their blood pressure by 50 points.

[Dolomite_supafly]

It is a Savage in 300 Blackout. The barrel is a Green Mountain "special" that I got for $40. I had Predator cut it to 17" and thread it 5/8-24 for a suppressor. I just want to make sure it shoots before submitting my Form 1.

I will try to post some pictures of the gun in a day or two.

Dolomite