Having an XHP35 HI with that size of reflector, as the reflector is about as deep as the Acebeam K70. Even at only 2500 lumens, 1200m throw is a reasonable claim.
Anyway, if they are indeed having difference of 350m measured by forumer, I think it is quite funny to know Astrolux and Haikelite were using offset numbers quite close to each other to boast their flashlight throw distance.
1587-1200 = 387m. I wonder is it possible they engage the same test house to perform the test and cause this offset from reality.