Just got a 6mm AR Turbo 40 upper

[Lakeway]

Got it from Robert Whitley at AR-X Enterprises. It's a wildcat cartridge based on the 6.5 Grendel, necked down to 6mm and blown out to a 40 degree shoulder. 24" stainless Pac Nor match grade barrel (1:8 twist) in a medium contour. This is their varmint configuration. It's significantly lighter than my 24" RRA varmint upper which improves the balance considerably. Should be a little easier to carry in the field as well. These uppers were originally designed for high power competition and should be capable of 1/4" groups (or better) at 100yds. Since the Grendel case is very short, it can be loaded with long VLD type bullets up to 108gr at 2900 fps and still maintain an OAL that will fit a standard magazine. It can send a 75gr V-Max at about 3300 fps. Should be an awesome long range varminter with a little "oomph" than my .223 upper. It should also work well for whitetail (95gr Nosler Partition at 3000 fps). There are some downsides. Shorter bullets can cause feeding problems. It's recommended that you don't load anything shorter that a 75gr V-Max. The cases have to be fireformed and Grendel cases are very expensive.

Anybody here have any first hand experience with these? Wormanship looks awesome. I can't wait to try it out.

 

[dk17hmr]

I looked at getting a 6mmAR for hunting until I saw the price of the dies and brass. It still looks very interesting but not in my budget right now. I have only heard positive things about Mr. Whitley's cartridges.

 

[kunas]

ley us know how it does, i jsut picked up a 6mmppc upper that i will be puting to the test soon as well Ron

 

[Jeff Wilson]

Ladeway, how did you make out? What varmint loads did you work up that were the best?

Thanks.

 

[semo97]

I have been shooting one for about a yr. I would stay away from the 108. I find the 105 VLD hunting, 105 Horn. BTHP and 87 Vmax are what I prefer. I stay at the 2900/2950fps. I look for accuracy not speed. I have the keiger barrel in 24 and mid wt. side charge. It is pricey to get set up in reloading for it. I see the cost went up after I got mine for everything. It is fun to reload for document everything and measure length of everything several times. They have a tight chamber and know where your lands are for total length and stay out of lands. .010/.020. mine likes a jump yours may not. You will like it when you find out what it likes it will take time.