Another option is the 390 ATips. My .375 Snipetac (Cheytac Imp) was spitting them out at 3050 (with a rather mid level load) from a 36" barrel. That thing was ridiculous out to some very far ranges! The splash with the cup-n-core ATips is greater than the monolithic metal bullets.
-
If you are being asked to change your password, and unsure how to do it, follow these instructions. Click here
33xc velocity
- Thread starter Coercionist
- Start date
Help Support Long Range Hunting Forum
Coercionist
Well-Known Member
What twist are you running? Im afraid that the 8 or so twist needed for the lazers will kill the atips. Given how the mono bullets usually run a little faster do you think that my goal of 3200 with a 400gr mth/lazer and a 38" barrel is plausible. Im unsure of what reamer to use ive seen an older one called the 375 DCM that was a 40 degree shoulder and held 174gr of h2o. But idk if anyone is running it anymore
416DBR
Member
An 8 twist will not hurt a Atip.
Coercionist
Well-Known Member
OK, thanks, I was mistaken. I was thinking of the 425 grain cutting edge wallets that needed like a 7 twist. But the 400 grain MTH only needs a 9 twist so that definitely safe.
416DBR
Member
I think their limit is around 300,000 rpm.
He's right, I had an 8 twist and they shot beautifully.
With a 38" barrel I believe you should get to 3200 fps with an improved Cheytac case. It's good to have goals but don't get too hung up on the speed. Your rifle may be capable but might like a slower speed.
Coercionist
Well-Known Member
Certainly. Im just trying to see were it may end up, Ill just follow the nodes but wanted a ballpark figure. Definitely glad for the Atip as a backup. Would be cool if they made a 425gr atip actually made for the 8 twist
The .416 bullets have come a long way in the past few years and a Cheytac version in the caliber is popular in ELR. I have a 37XC reamer and thought about one to go along with the 33XC barrel. However if I'm going up in caliber, why not really go up to a 41XC?
Coercionist
Well-Known Member
Honestly, that may be a good idea. You give up a little bit of velocity, but you gain 100 grains of projectile weight the 41 XC may seem small compared to the 416 Barrett and the 416 vestal, but it sure does compete. I have seen some finishers in King of 2 mile use it.
What do you think that "extra 100 fps at the muzzle", would be at 2 miles where you compete?
Thanks
It's several mils of elevation at 2 miles. Not much for wind difference but if you are trying to make it to 2 miles with out an elevation adder it might make a difference
