WineXpert can anyone help me back out starting SG?

[Coaster]

I added sugar to my WE Sparkling kit before I took a SG reading (so many things to think about here I forgot). I added 216grams and the ending sg was 1.010. I filled 13 and 1/3 750ml bottles (10 liters maybe)

 

[masta]

Coaster,
Based on the calculator I use the SG before adding sugar should have been ~1.001.

 

[Coaster]

Thanks Masta, I hope the 1.010 isn't too high and I end up with glass grenades.

 

[Wade E]

Im sure those Champagne bottles can hold the pressure!