Originally Posted by
dverna
You used "The Load" and hundreds of thousands of loads have proven that it is safe.
Any powder is going to cause an issue if is 10 gr more than the recipe.
You made an honest mistake. I nearly did the same thing once using a mechanical scale that I had accidently "bumped". I was lucky and caught the problem.
IMO the most "accident prone" way to reload is to use a single stage press, loading block, and weighed charges. When I do it, I use an electronic scale, verify it, and never use a loading block. The case is charged with powder and then the bullet seated. The case never leaves my hand once it is charged until the completed round and placed in the box. This eliminates double charging.
Glad it did not cause any harm to you or the gun.