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zot · December 21, 1999, 01:59 AM

yeah I wonder about HS-6? all slow burning
ball powders used in mag loads, which use alot of powder needs that extra long flame to
get it going, 231 if ya use mag primers will
raise pressure fast, Speer has said to quit usingmag primers with 231 and 2400, and some in blue dot,Speer rewrote alot of their loads
on the .357 because of higher PSI to CUP
deveations, I allways use mag primes with 296
good high fps and pressure ok.

December 21, 1999, 01:59 AM	#10
zot Senior Member Join Date: April 2, 1999 Location: U.S.A. Posts: 566	yeah I wonder about HS-6? all slow burning ball powders used in mag loads, which use alot of powder needs that extra long flame to get it going, 231 if ya use mag primers will raise pressure fast, Speer has said to quit usingmag primers with 231 and 2400, and some in blue dot,Speer rewrote alot of their loads on the .357 because of higher PSI to CUP deveations, I allways use mag primes with 296 good high fps and pressure ok.