Mill your wheat berries on your grain mill's finest setting. Prepare a baking sheet with parchment paper.
In a large mixing bowl, combine all of the dry ingredients: flour, sugar, baking powder, salt, and cinnamon.
Make sure your butter is cold, and cut it into large chunks into the bowl of dry ingredients.
Using a pastry cutter or fork, cut the butter into the flour mixture until it is roughly pea sized and incorporated.
Add the chocolate chips and mix together. Set aside.
In a medium mixing bowl, combine all of the wet ingredients: pumpkin, egg, sourdough discard, and vanilla extract. Whisk to combine.
Gently add the wet ingredients to the dry ingredients, mixing until just combined. Be careful not to overmix. The dough should be slightly sticky, resist the urge to add more flour.
Lightly flour a work surface, and turn the dough out. Gently knead the dough just enough to get it into a ball.
Use your hands to gently press the scone dough into a large circle, about 8 inches in diameter.
Use a bench scraper or sharp knife to slice the scones into 8 pieces, like you would slice a pizza.
Place the scones on the parchment paper-lined baking sheet, about 2 inches apart.
Place the scones in the freezer while you preheat the oven to 375.
Once the oven is ready, move the scones directly from the freezer to the oven and bake for 22-24 minutes. The scones are done when they are just turning golden brown and a toothpick inserted into the middle comes out clean.