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  • 300 RCM

    A few years ago Ruger and Hornady came up with their compact magnum rounds, one in 300 and one in 338. I recently found a Ruger 77 Hawkeye Compact Magnum for a steal in 300RCM. They’re based off of the 375 Ruger but made to fit in a 308 length action. The 300RCM claims to match 300 Win Mag ballistics and do it out of a 20” barrel! From the reviews I’ve read, it comes pretty close but not quite matching the 300WM in a 20” tube. That’s with factory rounds, where they have access to conglomerations of powders that normal hand loaders don’t. Do you think the reloaders at home would be able to improve upon the efficiency of these rounds, match the factory ammo, or would we struggle to get the same results?

  • #2
    I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

    A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
    https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

    Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
    https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

    You should find load data for that bullet in the Hornady 10th edition manual.

    Comment


    • #3
      Posted this answer in the wrong place

      Comment


      • #4
        Originally posted by PigHunter View Post
        I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

        A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
        https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

        Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
        https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

        You should find load data for that bullet in the Hornady 10th edition manual.
        That was my guess as well. I’d probably buy a few boxes of the factory loading with the 165gr GMX bullet and shoot those and reload that brass. It’s only about $30 a box on MidwayUSA and where I’m from that’s the same as 243 and 7-08 so it’s not a bad deal, but unless it takes off there will likely be a day when finding factory ammo becomes hard.

        With Hornady Superformance 165gr GMX bullets, out of a 24” barrel the RCM is listed at 3130, that seems to be the most popular and available ammo for it. Federal lists it’s trophy copper 165gr 300 WSM at 3120 out of the same barrel length. I figure from a 20” barrel to expect around 3000fps.

        Comment


        • #5
          Originally posted by PigHunter View Post
          I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

          A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
          https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

          Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
          https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

          You should find load data for that bullet in the Hornady 10th edition manual.
          Was the barrel cut or was that factory length ? If it is a really really good buy you can always rebarrel it to something like a .300WinMag . My guess is there is no powder used by ammo manufacturers that is not available to reloaders. Think about it, powder companies make the stuff by the ton. Are they going to interrupt production to make a custom batch. I don't think so.

          Comment


          • #6
            Originally posted by PigHunter View Post
            I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

            A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
            https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

            Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
            https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

            You should find load data for that bullet in the Hornady 10th edition manual.
            Factory loaded ammo is a "Secret" blend of powers to safely retain speed & PPSI.

            Comment


            • #7
              Originally posted by PigHunter View Post
              I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

              A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
              https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

              Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
              https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

              You should find load data for that bullet in the Hornady 10th edition manual.
              Jimbo the barrel on that rifle was 20” from the factory. If I buy it, it’s $499 before taxes and whatnot. Brand new, walnut stock, iron sights, seems like a pretty good deal overall. Even if I can’t match factory speeds for “magnum” performance, I imagine it would be a little over my 30-06 which is more power than I’ll probably ever need. And I’d really be buying it for the rifle, not the round.

              Comment


              • #8
                Originally posted by PigHunter View Post
                I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

                A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
                https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

                Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
                https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

                You should find load data for that bullet in the Hornady 10th edition manual.
                I would pass on it for $500. You would have to spend an additional $200 in dies and brass/amo. Plus a rebarrel is probably $350 + if you ever decided to do that. Does it have Ruger rings ? What was the intended idea for such a powerful round in a short barrel ? Weight, handling, scabbard ? I barely remember the RCM but can't remember how it was advertised.
                You can buy a real nice rifle for $1000 and be sure of what you have. Save up your bucks for something you really need.

                Comment


                • #9
                  Originally posted by PigHunter View Post
                  I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

                  A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
                  https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

                  Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
                  https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

                  You should find load data for that bullet in the Hornady 10th edition manual.
                  An additional thought, do you have a scope for it? You could very easily be upside down in the rifle and have something you may never be able to get your investmwnt out of.

                  Comment


                  • #10
                    Originally posted by PigHunter View Post
                    I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

                    A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
                    https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

                    Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
                    https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

                    You should find load data for that bullet in the Hornady 10th edition manual.
                    Yes I already have a 3-9x and 2-7x that could go on it, or I may even just leave it with the irons. It would be used in a variety of situations, but I think it would be particularly good for black bears in the dense brush we have all over Easter NC. Maybe also if I were to ever hunt elk in the timber. It’s just a little bit different/odd/cool rifle. Not something I need by any means, so I could spread the cost of the rifle, accessories, and reloading components out.

                    Comment


                    • #11
                      Originally posted by PigHunter View Post
                      I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

                      A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
                      https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

                      Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
                      https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

                      You should find load data for that bullet in the Hornady 10th edition manual.
                      In short Jimbo, you’re completely right, it’s not a good investment. But it’s a pretty little gun and different than what anyone else I know owns. And I have some extra cash, I might have to take it home with me.

                      Comment


                      • #12
                        Originally posted by PigHunter View Post
                        I'd say you probably can't get the same results handloading. But of course you could get close, it all depends on the components. The short barrel will be about 100 to 150 fps slower than the test barrels.

                        A quick look at the Midwayusa site shows that Hornady has a factory load using the 178 ELD-X which should be kick-ass downrange. (It's part of their Precision Hunter line).
                        https://www.midwayusa.com/product/824391/hornady-precision-hunter-ammunition-300-ruger-compact-magnum-rcm-178-grain-eld-x-box-of-20

                        Brass could be an issue because Midway only shows the one listing manufactured by Hornady.
                        https://www.midwayusa.com/product/171256/hornady-reloading-brass-300-ruger-compact-magnum-rcm-box-of-50

                        You should find load data for that bullet in the Hornady 10th edition manual.
                        Consider it a project gun and go for it.

                        Comment


                        • #13
                          I think stout cartridges are the way to go for flat shooting. I think the aggressive neck is likely to cause an issue for reloaders. I think that it will act like a .300wsm but maybe marginally better performances with shorter barrels which may be advantageous for a scout rifle. .300win mag performance is a bit of an embellishment, you hear it a lot from the creedmoor crowd.

                          If other rifle companies pick it up, (been around for ~9yrs currently) it might have an advantage, but if Ruger is the only horse in the race, my question would be, why not the 30 Nosler?

                          Comment

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