Mash Tun Advice

Same exact bazooka tube. I'm more prone to stuck sparges in my round cooler even though I mill the same exact way and use rice hills. I also have better efficiency on my rectangle since I can just let the ball valve rip.

 

Just got this false bottom for my round cooler to replace the dome. Haven't tried it yet but it fits very tight so i hope it works better. https://www.amazon.com/Coldbreak-Br...GL012-Stainless/dp/B073V2V3Y8#customerReviews

 

I really like my 52 Quart Coleman Xtreme Cooler. It holds heat well. It only loses 3 to 4 degrees during a 60 minute mash, and that allows for opening it several times along the way to stir.

I started out with a homemade braid, but just recently I purchased a Brew Bag to replace the braid. To date I have always done a batch sparge step, but with the Brew Bag I'm thinking of transitioning to 'no sparge'. I generally size my batches for 6 gallons going into the fermenter. I'm not sure what my maximum OG will be for 6 gallons via 'no sparge' with this ~13 gallon mash tun. For a single batch sparge I'm at 70-74% Brewhouse Efficiency, with my lower ABV recipes at the 74% end of it. Any guesses as to the ballpark maximum OG that will fit with no sparge?