can anyone tell me what causes an arrow to explode? i was out back shooting at my 3d deer target and an arrow exploded. luckily it made it past my bow hand. it came apart on the peep end and broke in 2 about 10" from the vains. it was a st axis 340 with about 100 shots or less and never hit anything other than the 3d target and maybe a bail of straw behind it. shot out of a maxxed out destroyer350. been shooting muzzy mx4's for the last couple days. since the bh butts up against the carbon could the shock cause the arrow to split? the mx4 has a little bigger diameter than the arrow where it butts and no ring in between like the slick tricks. could it be an isolated incident? factory defect maybe? its got me a little nervous about shooting these arrows. thanks in advance