federal 300 win mag 190 grain sierra matchking BTHP

[bigbluegulp]

Any buddy have the load info on these my gun shoots them very well and my huskemaw has custom turret for them but I would like to start reloading them my self any info would be great thanks

[obsessed1]

If you dont have access to sierras manuel you can find pdfs of them online by caliber. I would shoot a few factory rounds over the chrony then pick a low starting point out of the data and work my up to desired velocity. If you dont have a chrony you will need to compair drops out at say 500yds to match velocity out of your barrel.

[sillyak]

Factory loads use blended powders that hanfloaders do not have access to. The only way to replicate the load is to get the Sierra manual, pick a powder or two and work up a load with that bullet.

[MattSako]

Sure my partner use those 190 bthp sierra in his remington 700 bdl. Shoot great and flat. He droped a moose at 295 yards 1 shot.

This is what i use in his gun :
190 bthp sierra COAL : 3350 Primer : CCI 250 mag Powder : Alliant RL 22, 71.5


this is the Sierra Data :

Accuracy Load : (RL 22 - 70.4 ) RL22: Min 65.8 Max: 72.7


Let me know if you need data for a specific powder. Sierra list : AA4350, imr4350, RL19, imr4831,AA3100,H4831sc,Magpro,VihtN165,RL22,imr782 8,H1000,Magnum

[bigbluegulp]

I'm going to try using imr 4831 and I need 3071 fps to match factory average
Thanks for the info