33 XC Build

[PhilKeil]

Thanks, please keep us posted

 

[rpierce]

Well I went and did a little more seating depth testing. Heres a 3.15" group at 1000 at .095 off the lands. Group was 2 1/4" vertical. The 300 gr berger will shoot 3" @ 1000 .070-.095 off the lands. I did .005 increments. They also land in the same exact spot. I didn't try it any further off as theres no sense in wasting barrel life. A .025 wide window is more than enough. I don't have to worry about throat erosion and the relationship to the lands as much with that wide of a window. This load has a SD of 6 for 10+ shots. This is about the best long range elk setup that I could dream of. 300 gr berger at 3200+ fps w consistent .3 moa at 1000 and very consistent velocities. Just for a comparison this setup has the same energy at 1600 yds as 6.5 creedmoor at 300 yds.

 

[rpierce]

Finished up this sick 33XC for Aaron DeRose. Did full load development and everything for it. This rifle is stupid accurate. Shots 2,3&4 down the rifle measured .328"@100 with a random starting load. I ended up settling on a very mild load of H50bmg with .0015 neck tension and 300 gr bergers .020 off the lands, 2989 fps average. 10 shot single digit ES was had on more than one occasion. I ended up shooting the smallest group at 580 yds Ive ever shot. .362"/.059 MOA AT 580 YDS. Obviously it won't do that every time. However the rifle is consistently holding 3" or less vertical at 1000 based on the last several groups shot with it. Heres a 3.104" group at 1000 with 1.64" vertical. With this very mild load of H50bmg there is almost zero throat erosion. Haven't been able to measure any in the last 100 rounds. I didn't get bolt click til 7 gr more powder, just to give you an idea on how mild it is. Barrel will easily last 1000 rounds. ZERO recoil on this thing. Reticle doesn't hardly leave the target at 1000.

Rifle has the following components:
Surgeon 1581 timed to a Triggertech Diamond
XLR Evolution, sick paint job by Grant Gillespie @ Viking Armament
Brux 32" barrel 9.4 tw Slabbed
5 Port Magnum "Muscle" brake
Zero Compromise optic bedded into a Spuhr Mount

 

[SAP]

What is the recoil comparable to? I was thinking about building one with a carbon or steel barrel with a McMillan stock and terminus action but didn’t know if recoil was managing and was going to put the same break on.

 

[BORGY76]

Looks like a sweet elk slayer @