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Old February 2, 2013, 06:38 PM   #6
Bart B.
Senior Member
Join Date: February 15, 2009
Posts: 6,318
That 1:10 twist barrrel's best for 190 or 200 grain bullets; Sierra's 190 or 200 HPMK's for example. But 175's will work pretty good if they leave at about 2600 to 2650 fps. And they're better than Sierra's 168's and 180's 'cause their boattail is better shaped for long range use.

I suggest 43 grains of IMR4064 over a Wolf primer topped by that 175. Seat the bullets out as far as you can and if they just touch the rifling; perfect. With properly full length sized cases (or even brand new ones) of most any make, if this doesn't shoot well under an inch at 100 yards, it's not the ammo's fault.
US Navy Distinguished Marksman Badge 153
Former US Navy & Palma Rifle Team Member
NRA High Power Master & Long Range High Master
NRA Smallbore Prone Master
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