Some time ago I was seeing posts in the gunsmith section about barrel quality causing inflight bullet blow ups. My thoughts are the inflight bullets blow ups or jacket failures are not caused by barrels but by bullet jacket defects or excessively thin jackets, combined with high velocities. I have found references to annealing of bullets over candle flames in the 1000 to 1200 degree F range. Has anybody done this? I see that the molten salt annealing process uses temperatures of 700 degrees C or 1292 degrees F to accomplish annealing on brass cases consisting of about 25 percent zinc and 75 percent copper; would a brief exposure to temperatures (with a candle) at this range anneal bullets that are about 10% zinc and 90% copper without melting cores or damaging the tiny little plastic tips? I have also seen in the forum references to 6.5 147 Hornady ELDM bullets having some type of failure. I hope to try this annealing stuff out with 154 .284 Hornady SST bullets at impact velocities in the 2300 fps range on wet news papers at 300 yards. Hope to have some pics of this event.