Re: Best selection and smith to build a 375 Cheytac
Good Day Bill,
Just as lrs50bmg has pointed out..bullet choice will ultimately be the driving factor in regards to this build. Here are a few details of that.
Option #1 would be the 350gr solids from Jamison Ordnance which is the original LRBT design and specs. For best results with that you will need an 11.5 twist barrel that has bore/groove dimensions spec'd for solid bullets aka Lost River Bore. Requiring the solid projo barrel specs limit you on barrel makers you can choose from but that number is increasing constantly. Lawton would be my first choice. The results of this bullet and barrel combination cannot be argued.
Option #2 would be the 355gr solids from GS Custom Bullets which call for a normal bore/groove dimension spec'd. The twist rate would greatly depend on the stability factor number you wanting. Please see this link that shows stability factor/twist rate factors for this bullet.
http://www.gsgroup.co.za/375355SP173.html IMO and if I were going to build a rifle for this bullet I would get a 9.5 twist rate barrel with the normal bore/groove dimensions. That increases the number of barrel makers that you can pick from. My first choice for this barrel would be talking Broughton into making one with 9.5 twist in his 5C rifling profile or get a Pacnor with 10 polygonal or 10 twist 6 groove.
Option #3 would be the long solid projectiles from Noel Carlson. You would have to get in touch him directly to discuss twist rates and other factors. I have a new Lawton 8 twist sitting in the shop right now but have not put it onto action because "Augustus" has already fired the projectiles from his 8 twist. You can search his post and read the results. When the stability, MV, and range results are finalized on these projectiles I will then get barrel to match them.
Once you choose your "option" from above then you can proceed to actions lol. Your choices there include the following:
1. Lawton 8000 and 8500 series, I have couple rifles built on the 8000 series and have nothing negative to say about them. Would be my first choice if building a repeater.
2. Barnard P-Chey, I am building a rifle on this action right now. I really like the features of this action. No tools required to remove firing pin, trigger adjustable in every way imaginable, 3 lug with 60deg bolt throw, no raceways in the action due to bolt body being same diameter as the bolt lugs. Would be my first choice if building a single shot.
3. BAT Machine, I really cannot comment on them as I have no direct experience with them.
4. Xtreme Machine Action (Makers of the 338XT), same comment as the BAT Machine.
5. EDM Arms SA99 (IIRC that was the nomenclature), it was the single shot version actions that EDM Arms made for few years. Great action!! You could call up Bill Ritchie and/or Tom Miller to see if they have one laying around. You could also just put out your WTB feelers for this action. You will be surprised at number of people that are going to have one lol, hell I put out WTB feelers for damn EDM Warlock action and someone on THIS forum had one for sale LOL.
Now once the "option" above is choosen lol you can then proceed to picking a gunsmith to assemble. That is the easiest part of the whole damn thing. Any gunsmith you trust to build any other bolt action for you is the one you pick.
Thanks
ne of the best rifles I've ever owned.
