Thread: 270 powder loads?

Well I still think that annealing projectiles is just a wind up I mean really, if a bullet is to hard for your purpose dont you just try a softer bullet?
Anyway Iv also heard about people annealing brass cases with a candle which sounds a little counter intuitive so i thought Id try it. I used 450F templaq inside the neck of a 243 case then held it in the flame of wax candle. It took about 14 seconds till I could no longer hold the case at the web. The templaq in the neck had just changed colour so Id guess 450-500F. I tried again with 650 F and it showed no change by the time I could no longer hold it. By my understanding it takes 650-700F + for a few second to successfully anneal the neck before the heat or travels to far down the case body so if that's the case then Id call this one busted. Applying the same logic to projectiles I wonder if the temp isnt getting high enough to achieve anything other than making it hot and getting it covered in soot. It would need to be tested for brinell hardness in scientifically significant sample size or some such thing before Id become a believer. But then it wouldn't even make the bottom of a very long list of things id do.?

Originally Posted by sneeze

Well I still think that annealing projectiles is just a wind up I mean really, if a bullet is to hard for your purpose dont you just try a softer bullet?
Anyway Iv also heard about people annealing brass cases with a candle which sounds a little counter intuitive so i thought Id try it. I used 450F templaq inside the neck of a 243 case then held it in the flame of wax candle. It took about 14 seconds till I could no longer hold the case at the web. The templaq in the neck had just changed colour so Id guess 450-500F. I tried again with 650 F and it showed no change by the time I could no longer hold it. By my understanding it takes 650-700F + for a few second to successfully anneal the neck before the heat or travels to far down the case body so if that's the case then Id call this one busted. Applying the same logic to projectiles I wonder if the temp isnt getting high enough to achieve anything other than making it hot and getting it covered in soot. It would need to be tested for brinell hardness in scientifically significant sample size or some such thing before Id become a believer. But then it wouldn't even make the bottom of a very long list of things id do.?

Exactly.....I mean really if a SST or AMAX or NBT or whatever frangible bullet is too hard at range then you are pushing the thing too slow for starters and will struggle to place your shot due to windage anyway.
Run the numbers on a 30 cal 168amax at 2750fps and impact at 705y. It is pretty bad ballisticly and still makes impressive wound channels at that range!
Really if your speed is bad enough to worry about projectile performance at range with a suitable projectile then the slightest breath of wind will be your undoing.

Originally Posted by veitnamcam

Exactly.....I mean really if a SST or AMAX or NBT or whatever frangible bullet is too hard at range then you are pushing the thing too slow for starters and will struggle to place your shot due to windage anyway.
Run the numbers on a 30 cal 168amax at 2750fps and impact at 705y. It is pretty bad ballisticly and still makes impressive wound channels at that range!
Really if your speed is bad enough to worry about projectile performance at range with a suitable projectile then the slightest breath of wind will be your undoing.

From what I have read most bullet manufacturers recommend an impact velocity of between 1800 fps and 2000 fps I would stick with the lower velocity with SST bullets,
Hornady recommend keeping the impact velocity under 2700fps so there is a 900fps window for reliable expansion I guess there is some leeway either side of that