The chassis was $2200 and the Cerakote job was $700. Barreled action was $2415 with Rebel action, Terminator, Cerakote and finished length of 33" barrel in modBB Bartlein.
The 41XC exceeds any of the Cheytacs regarding bullet BC and energy down range. I don't think many folks use the 408 anymore because they can push the .375 to greater performance with 400gr lasers or flatlines. Not sure on the numbers but I think they are still closer to 2750 to 2800fps pushed, which is still less than what I'm getting with the 505 WF, which has a G7 of .595!!!
Do you know the weight of your rifle? How was recoil?
Most are running 400s at 2950-3050.
Thats a Super nice rifle.Are you shooting at Spearpoint KS this year? Or Just Wolf match ?
We shot march. That’s all we’ll get to shoot until fall
Weighs just shy of 26 lbs with bipod. Chase Stroud did my load development last Monday while I was in Austin and watching him shoot, it looked like a lot of recoil. When he finally got everything dialed in and I got behind the rife, I was a little worried it would be bad. I was pleasantly surprised... it was less than the .308 POF Revolution I used to have. Guessing I could go 50 rounds in one session without any shoulder pain.
For contrast, the 375 400 gr laser at 3050fps is 8264ft-lbs and goes subsonic around 2270 yards. Mils are roughly the same at 1500 yds. I use shooterscalculator.com because you can set whatever yards you want.
What cartridge you shooting?
41 XC with 505gr Flatlines
Did you originally work up w virgin brass? Size and ran into pressure on the 2nd firing?
that's super slow for that much powder
The 416 Warner Flatline 505 rocks. Running 127gr H1000 at 2870fps.
@Geno C. I recently got a new 7t barrel in 33xc for shooting 285 ICBMs. However it seems my bullets are not stablised. One even hit the muzzle brake and destroyed it. >20 inch groups at 100 yards and some bullets are landing sidways and some not even on paper. Do you have any idea what might be going wrong with my setup? or did you have any issues tuning the badlands for your rifle?
the brake was loose, like really loose. That’d explain ur big groups probably all making contact until it ate it.
hmmm...I also shot without brake, same results.
I have ran the BL 285 in a 1-7.5 w 0 issues. Shot them out to 2450 yards w back to back hits on a 24x24 inch plate. I doubt .5 inch twist is causing your issue. Try another solid for the hell of it after everything else cks out. Always ask for the barrel cookie after having a barrel spun up.
Not stable in a 7 twist at what velocity? It has been a long time since I've seen it but you can strip the outside of a solid in a fast twist. Like running a cast bullet too fast. You'll get crazy fouling and terrible accuracy. If you recover a bullet from a softened impact you may find essentially no grooves cut in it.
In my experience groups that size (over 2") are usually something else wrong not the load.Here is some info on things I tried. I tried using a slower burning powder but it gave same results (~3030 fps). I tried shooting jackedted bullets. Jacketed bullet group was relatively tighter at but still a huge group of 2-3 inch at 100 yards. I have ordered some cutting edge lasers and will try shooting those with slightly more lower charge. Will also check bore dia once my gunsmith friend is back and will try reducing the meplat as suggested. Will share results as I go through this expensive but exciting tuning journey
Jacketed bullets CANNOT be used in a 7 twist. They will be torn apart by centrifugal forces in mid air. I'm surprised they are even making it 100 yards.Here is some info on things I tried. I tried using a slower burning powder but it gave same results (~3030 fps). I tried shooting jackedted bullets. Jacketed bullet group was relatively tighter at but still a huge group of 2-3 inch at 100 yards. I have ordered some cutting edge lasers and will try shooting those with slightly more lower charge. Will also check bore dia once my gunsmith friend is back and will try reducing the meplat as suggested. Will share results as I go through this expensive but exciting tuning journey
PS- k&p barrel.
Bullet dimension is one thing but alloy is another. CE is tellurium copper and I think badlands uses oxygen free copper which is generally softer. Easier engraving but with tradeoffs for shear strength.
There really is no such thing as sealing the bore. You always get gas blow by and that is fine. You want to obturate the vast majority of the bore and the differences here are going to be fractions of a percent of the total bore surface area.
I have had problems getting the 390gr badlands to group. Measured and they were .3749” my groove diameter is .3752” had some made at .3755” and group great.
I noticed one more thing. Barrel after firing (Badlands) has excessive copper fouling and almost 100% of that fouling is concentrated between middle of barrel till crown. See video at link below. Does that indicate something? Why is the bullet not leaving any copper fouling in first part but starts heavy copper fouling in second half?
I'm going to stick with my earlier statement. I think the bore is stripping the outside of the bullet off so it isn't spinning them up. Too tight of a twist on a bullet that can't take that kind of mechanical load.
