.457 piledriver initial sight in

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SqrlHntr

SqrlHntr

Member
Dec 17, 2020
733
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33 Shooting Club Road Boerne, Texas 78006
boernefieldtarget.com
E08BF2EA-AE24-42B9-A29B-4DD78DAAA269.1617282240.jpeg
quick post. Sighted in this beast a while ago, just now getting to post. 

Initial sight in of the Piledriver in .457.

First shot low left after bore sighting. 
ATN 4KPro 5x20 (one shot zero works, was not recording as i forgot the sd card, doh!)

NSA 350gr BTHP. 4300 psi fill, 4 shots, end psi about 3300 ( Note gauge readings not compared or calibrated, but fill psi set with Regman) 

75 yds. ( indoor range ) 

20MOA Rail was needed

I will post the chrony work and the testing of the NSA 348 knurled BTHPs, 400 gr BTHP and someGriffin Ammo, (bthp 350gr) once completed. 






 
I’ve got one of these on the way, should be here Monday. I like the looks of that accuracy. I’ve shot several Texans and am just not a fan of the ergonomics...looking forward to giving this thing a run. I’m primarily a hunter, and this will be my first seriously powered big bore. I’ve had a 70-45 for about a year and it shoots good...I’ve taken a couple of deer and several coyotes with it. It gets the job done, but at 750fps with lighter bullets, the trajectory is pretty loopy.

Gunner
 
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