Help with ABV

[Drews_Brew]

Hi,
I need a little help figuring ABV for this recipe...

I brewed 4 gallons of Pumpkin beer OG = 1.077
I let it ferment down to 1.016.
Then, I added a gallon of apple juice with a gravity of 1.046 to the carboy.
The new gravity took it up to 1.032.
This concoction fermented down to 1.012.

What is my ABV?

It tastes really good. I actually brewed a 7g batch and split it into a 4g and 3g bucket. I added 1 gallon of apple juice to the 4g batch and 2g of apple juice to the 3g batch.

Thanks in advance for your help.
Cheers

 

[day_trippr]

As it turns out, that gallon of 1.046 apple juice is the equivalent of a pound of corn sugar.

Back-calculating the 4 gallons of 1.077 says you had ~8.6 pounds of malt (& pumpkin, presumably), and adding a gallon of 1.046 would bring that to 5 gallons of 1.087 wort.

Presuming average yeast performance, you would end up with an ABV of ~8.4%...

Cheers!