Driftertank
Member
Doing some load workups for a friend's hunting rifle, a T/C Venture in .30-06, and some of my velocity results have made me raise an eyebrow. Made me want to see if anyone else has velocity data for one of these rifles, to find out if my results are typical.
So, my loads started with a 165 Accubond over 56gr of H4350, which book says should run around 2700fps, and my past results have led me to find book numbers typically a little optimistic, so I figured I'd be expecting between 2650 and 2700.
So you'll understand why I was a little startled when the first round across the chronograph showed a velocity of 2906...
I thought, "Something's not right. Light angle, picking up muzzle blast, battery's low...that CAN'T be correct..." I bumped my chrony out a little farther from the bench, changed the battery, then sent a round each from my 7mm and my wife's 6.5 PRC; velocities right where I expected. So I picked up the Venture to send another.
2909.
Long story short, I ran my workups to a rather stout maximum load, that gave an average velocity of 3060fps with no pressure signs. Pristine primers, easy bolt lift, no case head deformation.
So, for any Venture owners out there: do you typically see ridiculously fast velocities from your rifle? Or is this one just special? I mean, I know that one of the touted advantages of 5R rifling is higher velocity, but 200fps over book speed?
So, my loads started with a 165 Accubond over 56gr of H4350, which book says should run around 2700fps, and my past results have led me to find book numbers typically a little optimistic, so I figured I'd be expecting between 2650 and 2700.
So you'll understand why I was a little startled when the first round across the chronograph showed a velocity of 2906...
I thought, "Something's not right. Light angle, picking up muzzle blast, battery's low...that CAN'T be correct..." I bumped my chrony out a little farther from the bench, changed the battery, then sent a round each from my 7mm and my wife's 6.5 PRC; velocities right where I expected. So I picked up the Venture to send another.
2909.
Long story short, I ran my workups to a rather stout maximum load, that gave an average velocity of 3060fps with no pressure signs. Pristine primers, easy bolt lift, no case head deformation.
So, for any Venture owners out there: do you typically see ridiculously fast velocities from your rifle? Or is this one just special? I mean, I know that one of the touted advantages of 5R rifling is higher velocity, but 200fps over book speed?