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Old 08-16-2009, 06:40 PM
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Groo01 Groo01 is offline
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Groo here
Treeman I think you are verrrry close to the problem...
I also used bluedot until I got 296 [ loaded hot in those days] used that pound up and got no more..
The pressure spike at the bc gap maybe the problem in all this,
along with the condition of saving brass [ aka don't crimp much-ides]
that handloaders do.
Keith said that the then new powers [smokeless] were hard to light
and needed a good crimp. We have people saying that they don't
crimp at all now!!!! The powder companies must take this into consideration when they publish data.
In PPC and now in SASS there has been a rash of kbooms
with light loads.
I think that what is happening is the primer is blowing the bullet
past the crimp and it stoppes at the bc gap and then the powder
starts to burn well- this makes the bullet a plug and we all knows
what happens next....
I will no longer load a round that is not crimped at least normal if
not heavy and I will not load a powder below starting.
If I need less I go to a smaller gun or a different powder[aka Trailboss]
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