by 3rdgeargrndrr » Sat Jul 05, 2014 12:32 pm
Ed,We are as group, hesitant to share loads which can be potentially dangerous as we are not aware of the experience and skill of the reloaders reading our posts. The last thing we would ever want to hear is how someone blew up using our loads.
That being said, there are many loads that we have tried and tested, and are counting on forum members to experiment a little within their reloading knowledge and share within our database.
My new loads I am very hesitant to publish as my gun has a modified gas system and bolt carrier which likely would not apply to most 450 Bushmaster uppers at this point. I am shooting 300 grain and up only with my gun.
I have tried a multitude of powders and all give some compromise in terms of performance, but still for most guns, in terms of being accurate, fast and reliable, Lil Gun still gets the nod.
That being said, be extremely cautious and know that any load attempted may be quite dangerous given a number of variables. Extrapolate data with extreme prejudice. Burn rate charts are again suggestions of the linear burn rate with only one or two variables. Different guns,projectile weights, components,charge weights, pressures, etc will change these variables quite a bit.
even the 460 SW in my experience,although similar to the 450b in many regards, actually flips the burn rate charts in my guns, IMR 4227 works better with the lighter projectiles (250gr and less), but Lil Gun works great on 400 gr. The inverse is true in the 450bm.
According to the burn chart data only, SR4759 or Alliant Steel should work fine, and I have been curious to see any results. the manufacturers themselves will probably tell you not oto try it.
I dont have quickload but am sure some of the guys when they get back from the weekend, would be happy to help you out.
Again, safety first, fun second. Post what you find, and Good luck.
CA: Exorcising my rights