It’s your mold, Make sure it’s REALLY CLEAN, and Get it HOTTER! You want to Slightly Overheat your Mold. Keep the Mold Closed and Dip the Bottom of it in the Molten lead, If it’s an Aluminum Mold it will Heat MUCH Faster than Steel, For an Aluminum Mold count 2, 2-1/2 Full Minutes with it in the Molten Lead. When you Pour the First Bullet you want the Sprue Puddle to “Dance” for 30 seconds, even a minute. When the Sprue finally Solidifies Count 30-45 Seconds and dump/Cull that Bullet, you don’t want to Open the Mold to Quick, if the Bullet has not Solidified it will get all over your Mold Halves and make a Mess
Keep Casting, and Culling about 4-5 Bullets, this Allows the Mold to “Settle” Down and enter the “Zone”, Now Start Keeping, if you Followed the Directions above, your Bullets should be PERFECT like this, SHARP edges, and Base