oven thermometeres
Can anyone point me in the right direction to where i can buy a themometer to use in an oven to oven heat treat bullets
im oven heat treating my 416 cast proj , in a little electrical fan forced oven , and i need to get a themometer to get the oven/bullets to the correct temp for consistencey from lot to lot
any help would be much appreciated
Daniel
26 July 2010, 03:28
Von GruffDaniel, I found that the bullets were the best thermometer when I was oven HT. I simply put a few of my discarded bullets from the same batch in a seperate wire basket and placed them in the oven using the slump test to determine heat required. I have a handy graph in my RCBS cast bullet hand book that gives aproximate temp's for the various antimony and tin percentages in the alloy. I would set the oven to the recomended temp for 10 min and then increase in 5 degree rises for ten min till I got 'slump' and back off a 5 degree from that. This gives the best HT Never used a thermometer other than the oven marking and that only as a guide.
Von Gruff.
Garry
thanks, never thought of tacking heat treating cast bullets that way
getting my self an oven this week so will give it a try
Daniel