8.80 lb 2-Row
0.84 lb Caramel 40
0.42 Chocolate
0.42 Brown
I mashed at 152 for 1 hour. with a Fuggle addition 1.5 oz at 60 and a .5 oz at 10 minutes for 28 ibu. I used Irish Moss. The beer fermented at 68 with wyeast 1028 London Ale. I bottled at the same temp with 3.5 oz of priming sugar.
That's a pretty low mash temp if you want a dextrinous mouthfeel. I'd suggest double checking your thermometer, and making sure that at 152, it's really 152. If you mashed at 149 or 150 instead, you'd get a pretty thin beer.