6mm grendel

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  • sneaky one
    Chieftain
    • Mar 2011
    • 3077

    #31
    Off topic a bit also- Article in new shoot times rag--- 6MM creedmore. Top 5 loads mimic My Grr loads to a T. This is what Joesmith and I, & few others were trying to achieve 3 yrs ago.

    Speeeeeeds.

    Beauty is the better diameter of the 6.5 @ same wt. ,,and same speeds.
    yet, mine were from a 16" gun--- the Creed was a 22" rifle.

    It out performs the 6mm Creed , as same as apples. Yes a .257 would be close----- But, we are the 6.5 Grendel gang here...

    I may try to post a pic soon with my new computer. Have some patience.

    Comment

    • bj139
      Chieftain
      • Mar 2017
      • 1968

      #32
      Here is a 6mm with more power. AR10 upper in 243 Winchester

      Last edited by bj139; 11-03-2017, 12:30 AM.

      Comment

      • HowaGrendel
        Bloodstained
        • Sep 2017
        • 99

        #33
        Originally posted by Kilco View Post
        Little off topic, but I just picked up a Ruger American Predator in 6mm Creedmoor. Was very surprised to see it has a 1:7.7 twist. Should be able to stabilize the 110gr SMK and the 108 ELD-M no problem.
        I have the same rifle and it shoots the 108 ELD's very good 1/2 so far....I have some of the 105 Berger Hybrids and they do not shoot as well.....I am still working on loads.....

        Comment

        • LRRPF52
          Super Moderator
          • Sep 2014
          • 8569

          #34
          Originally posted by bj139 View Post
          Here is a 6mm with more power. AR10 upper in 243 Winchester

          https://www.bearcreekarsenal.com/ua2...eid=d575df917b
          ArmaLite and DPMS have had .243 Winchester uppers for well over a decade now.

          The problem is you now have a beast of a rifle with a receiver set that feels like two bricks fit together, unless you go small frame.

          You can push a 105gr to 3000fps though from a 24" barrel.

          In the 6mm AR, you can get 2750 with a 105gr from a 26" barrel.

          In the 6mm AR Turbo, you can get 2850-2925fps with 108gr Bergers from a longer barrel.

          The lighter AR15 is more manageable, parts market supports it better, compatibility is there, brass life is excellent.

          A 6mm Dasher will get you from 2950-3000fps with 105s and 107s, but uses a .473" head diameter from the 6mm Bench Rest cartridge.

          Grendel brass
          6mm AR
          6mm AR Turbo

          6 BR Brass
          6mm BR
          6mm Dasher
          NRA Basic, Pistol, Rifle, Shotgun, RSO

          CCW, CQM, DM, Long Range Rifle Instructor

          6.5 Grendel Reloading Handbooks & chamber brushes can be found here:

          www.AR15buildbox.com

          Comment

          • bj139
            Chieftain
            • Mar 2017
            • 1968

            #35
            LRR,
            You are right. About the only advantage to the 243 is you can buy ammo at any sporting goods store.

            Comment

            • StoneHendge
              Chieftain
              • May 2016
              • 2009

              #36
              Originally posted by bj139 View Post
              LRR,
              You are right. About the only advantage to the 243 is you can buy ammo at any sporting goods store.
              And who does that?
              Let's go Brandon!

              Comment

              • bj139
                Chieftain
                • Mar 2017
                • 1968

                #37
                Originally posted by StoneHendge View Post


                And who does that?
                No one here since you can't buy Grendel at any old sporting goods store.
                Last edited by bj139; 11-05-2017, 11:37 AM.

                Comment

                • LRRPF52
                  Super Moderator
                  • Sep 2014
                  • 8569

                  #38
                  Originally posted by bj139 View Post
                  LRR,
                  You are right. About the only advantage to the 243 is you can buy ammo at any sporting goods store.
                  Biggest issue with .243 Win. is factory rifles chambered with lesser twist pipes, but precision shooters usually are getting custom actions done, so no big deal.

                  I still like the 6x47 Lapua and 6 Dasher with Lapua BR brass.

                  I've watched a lot of 6 Dasher through the spotting scope, very flat cartridge, mild recoil. Wish they would SAAMI that one and make brass.
                  NRA Basic, Pistol, Rifle, Shotgun, RSO

                  CCW, CQM, DM, Long Range Rifle Instructor

                  6.5 Grendel Reloading Handbooks & chamber brushes can be found here:

                  www.AR15buildbox.com

                  Comment

                  • Dustin U
                    Unwashed
                    • Nov 2016
                    • 2

                    #39
                    LRRPF52... "In the 6mm AR Turbo, you can get 2850-2925fps with 108gr Bergers from a longer barrel". How long of a barrel are you talking?
                    I'd like a 20 to 22 inch tube for a target/hunting rifle.. What Velocity could I expect from a 20 inch??



                    Dustin

                    Comment

                    • SHORT-N-SASSY
                      Warrior
                      • Apr 2013
                      • 629

                      #40
                      Originally posted by Dustin U View Post
                      LRRPF52... "In the 6mm AR Turbo, you can get 2850-2925fps with 108gr Bergers from a longer barrel". How long of a barrel are you talking?
                      I'd like a 20 to 22 inch tube for a target/hunting rifle.. What Velocity could I expect from a 20 inch??



                      Dustin
                      Dustin U,

                      Using Hodgdon CFE 223, muzzle velocity with the Berger 108-grain Boat Tail projectile should be about 2730 fps from a 20-inch barrel.
                      (http://www.6mmar.com/6mmAR_Turbo_40_Improved.php)

                      Comment

                      • bj139
                        Chieftain
                        • Mar 2017
                        • 1968

                        #41
                        What would be the best barrel twist rate for a 6mm?

                        Comment

                        • StoneHendge
                          Chieftain
                          • May 2016
                          • 2009

                          #42
                          Originally posted by bj139 View Post
                          What would be the best barrel twist rate for a 6mm?
                          Everyone with 1:8 seems to be doing fine. Berger states that 1:7 is the optimal for their 105 hybrids, so the McGowen I ordered is 1:7.
                          Let's go Brandon!

                          Comment

                          • bj139
                            Chieftain
                            • Mar 2017
                            • 1968

                            #43
                            I've been considering a 243 Win bolt gun but they seem to have 1:10 twist. It might be OK.

                            Comment

                            • SHORT-N-SASSY
                              Warrior
                              • Apr 2013
                              • 629

                              #44
                              When comparing other .243 (6mm) diameter bullets against their 110-grain HPBT Matchking, you can see why Sierra recommends, "a barrel twist rate of 1x7" or faster".




                              Comment

                              • StoneHendge
                                Chieftain
                                • May 2016
                                • 2009

                                #45
                                Originally posted by bj139 View Post
                                I've been considering a 243 Win bolt gun but they seem to have 1:10 twist. It might be OK.
                                Have you thought about a 6mm Cream S’more? It’s all the rage. If 6.5 CM was the new black, 6mm CM is the new FDE. Its able to accomodate longer bullets better than 243.
                                Let's go Brandon!

                                Comment

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