Thread: An accuracy challenge

Originally Posted by veitnamcam

Very nice Mike Rifle details?

Its a rifle called a Tikka T3. They're not very common but if you look around you can find them

This one is the .308 which I wrote about in the firearms section which has just been shortened and fitted with a Hardy suppressor.
Load is 165gn Sierra Gameking HPBT, once fired Winchester brass that was trimmed, primer hole deburred, chamfered, primer pockets cleaned, neck sized with a Lee Collet die etc, 46gns of AR 2206H powder(above max), Federal GM210M primers for 2660fps(at 6ft) and OAL of 2.67" which is well below the typical 2.801" length that most .308 ammo is loaded to. At this length though the projectile is touching the lands due to the long short distance back from the tip that the ogive is.

I had a rushed attempt at the challenge last night, barrel got hot so was dealing with a lot of mirage. This rifle will shoot .1" if you take your time and use a finer aiming point. The bottom 2 groups are actually 4 shots with the bottom shot of each being adjustment checks, The biggest group was .47"



I have been playing with my 7mm mag floating the barrel and stiffening the stock. I wanted to see what difference the bipod made in point of impact so shot a couple of groups. Not 5 because it would take me all night to do that and let the barrel cool down between groups.

Fired one sighter then a group of three off the bags



then this off the bipod



no shift in POI when going from bags to bipod, I have found that to shoot groups like this with the 7mm mag it is best to allow your cheek to rest heavily on the cheek weld (although you probably want a soft one) I have shot a few groups like this with this rifle now.

Sorry about the pic quality, it seems i over compressed them