.44 Caliber Love Letter-Alexisonfire (Band of Brothers) (Video) 1 discussions This is my second music video using band of brothers. This one uses the song .44 Caliber Love Letter by Alexisonfire off of their self titled debut album. Please comment. i want feedback on all my vid.. Tags: Brain72e Pete Annonymoose Band brothers alexisonfire .44 caliber love letter music video