CptnAwesome
Member
Previously using 120gr Sierra Pro Hunter over 34gr H4895 seated to 2.70" (lighter load for my wife) wich gave me 1" groups at 100yds easily.
Just started experimenting with these. Sierra Gameking .284 140gr Hollow Point Boat Tail with H4895 for my 7mm-08 Rem. Started at 37.5gr and worked up in half grain increments to 39gr. Groups were horrible. 1 1/2" at 100 yds was the best I got at 38.5gr.
39gr started to flatten primers.
Rifle is Ruger American
Without changing my seating die (set for the 120gr) it loaded the HPBT's to 2.60.(did not test). If I were to seat to the lands with the HPBT would be at 2.79" (which would still fit in magazine). These tested were seated to 2.78.
I don't want to seat to the lands so only option I guess is to work my way back (or creep forward slightly) and maybe try a new powder if that doesn't work. 42gr H4895 has given me 1" groups with the 120gr.
Anybody have experience with these bullets?(any caliber)
This is my first experience with the Sierra GameKing HPBT.
Would you try to creep towards the lands more or back out? Try a new powder?
Any suggestions or input would be appreciated THR!
Side note: Posting this reminds me I miss rcmodel.
Just started experimenting with these. Sierra Gameking .284 140gr Hollow Point Boat Tail with H4895 for my 7mm-08 Rem. Started at 37.5gr and worked up in half grain increments to 39gr. Groups were horrible. 1 1/2" at 100 yds was the best I got at 38.5gr.
39gr started to flatten primers.
Rifle is Ruger American
Without changing my seating die (set for the 120gr) it loaded the HPBT's to 2.60.(did not test). If I were to seat to the lands with the HPBT would be at 2.79" (which would still fit in magazine). These tested were seated to 2.78.
I don't want to seat to the lands so only option I guess is to work my way back (or creep forward slightly) and maybe try a new powder if that doesn't work. 42gr H4895 has given me 1" groups with the 120gr.
Anybody have experience with these bullets?(any caliber)
This is my first experience with the Sierra GameKing HPBT.
Would you try to creep towards the lands more or back out? Try a new powder?
Any suggestions or input would be appreciated THR!
Side note: Posting this reminds me I miss rcmodel.
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