180 gr sjfp

[clum sum]

Where can I find 180 gr sjfp for reloading a 44 mag.

[tacklebury]

180 gr. is common in the .357 size bullets, but that's pretty tiny in a .44.  Most of them are going to be 265 to 310 gr. in that caliber.  Here's some flatpoints:
http://www.midwayusa.com/product/605468/hornady-interlock-bullets-44-caliber-430-diameter-265-grain-flat-nose-box-of-100
http://www.midwayusa.com/product/591708/speer-deepcurl-bullets-44-caliber-429-diameter-270-grain-jacketed-soft-point-box-of-50
http://www.midwayusa.com/product/193158/speer-bullets-44-caliber-429-diameter-300-grain-jacketed-soft-point-box-of-50
http://www.midwayusa.com/product/1657228564/magtech-bullets-44-remington-magnum-429-diameter-240-grain-semi-jacketed-soft-point
There are some 180 gr. Hollow points like:
http://www.midwayusa.com/product/343530/sierra-sports-master-bullets-44-caliber-429-diameter-180-grain-jacketed-hollow-point-box-of-100
I use the sportsmaster in .45 Colt with great effect.  They expand well at moderate velocities between 900 & 1200 FPS.  They cannot be pushed too hard though. 
You could also try some swaged flat points as they do have them in 180gr.
http://www.midwayusa.com/product/798443/hornady-bullets-44-caliber-430-diameter-180-grain-lead-flat-nose-box-of-250