.257 Testing

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  • #489786
    michaellovett
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      I have been shooting the noe .257 offerings for 5-7 years now.  Accuracy has been absolutly superb with several of NOE’s offerings in the .257 Talon/Dor with a TJ’s liner that I fire laped .  1/2″ groups are not uncommon at all with three different bullets.

      The RanchDog  flat nose cast at 84 grains and pushed at 1000 fps is very accurate, and good penetration and the large meplat does a lot of damage.

      I sent the RD out to Eric at Hollow point mold service and he did a splendid job with it. It cast all 5  cavities with the Hollow point pins. Love the system!

      Many people don’t have the power available to push them at 1000 to 11fps, so I decked another of the same molds, but not HP’s, down to 60 grains and has proven once again to be a very accurate performer.

      NOE also has a Spire point offering that is a 110 gr. I decked it to 80 grs, and it is a laser. Many groups at 1/2″ at 100 yards. Love this bullet.
      I have not gotten up the courage to have Eric mod the mold for HP’s as it is so ultra accurate.

      I have a .25 Rainstorm that I removed the choke and lapped the bbl, and have been sizing NOE RanchDog bullet down to .249 and it is shooting well, squirrel head good out to 50 yards. I re decked the mold down to 50 grains as the RS does’t have the raw power of the Talon/Dor.

      I had a .247 21 inch bbl here that came from TJ’s, and was in the Talon/Dor before going to a longer tube. It had the same accuracy as the barrel in it now. Superb!

      I sent the bbl. out to Travis at JSAR after removing the very thin section that is on the Talon/Dor bbl’s that is required for the breech slide.

      It is now a 19 1/2″ bbl, and will be testing next week as it was shipped end of week from JSAR.

      I am looking forward to testing this new combo. More work will have to be done such as machining the .25 holes in the Mag. to accept the larger .257.

      It will be an interesting journey, and hopefully a worthwhile one. ;)

      I will give results here, and hopefully happy ones. LOL
      Knife

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    • #511257
      rsterne
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        Hey, Knife, thanks for posting this…. It will be a great help for budding .257 airgun shooters….

        Bob

        #511258
        michaellovett
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          Hey, Knife, thanks for posting this…. It will be a great help for budding .257 airgun shooters….

          Bob

          And thank You Bob!
          the .257 has truly proven itself for many shooters in the AG Long Range and Hunting World of AirGunning.  :)

          KnifeMaker

          #511259
          michaellovett
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            Started testing today after a few mods for the .257 barrel which slugs to .2573…1 in 14″ twist TJ’s.

            I forgot that I had one stronger spring that Oneshot sent a while back, and it was still uncut. Put it in and Whoa!

            Went from 78 fpe to 102.56 first shot. Was able to increase pressure to 3400 and get a full release.

            NOE 50 gr 256 sized, for the .257 slugged barrel, 961 fpe for 102.56 fpe
            NOE 50 gr. 257 sized, for the .257 slugged barrel, 934 fps for 96.88 fpe

            Stoked to say the least.

            Too windy today for testing for accuracy. GRRRR!!!

            However, this bbl. has always been stellar in accuracy. 

            Now to hone the .25 mag to hold the .257’s. and make a new poppet from the PET-P rod that just arrived.  ;) 8)

            Knife

            #511260
            michaellovett
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              The New Poppet made from PEt-P is much stronger than factory, and I felt making it slightly lesser in Dia. and slightly tapered.

              Fpe rose again, to 987 fpe for 108.18 fpe, with no other changes.

              Was using a lot of air, so dialed down the spring tension, and removed one coil. Settled on 905 fps for 91 fpe and more than double the shot count.

              Accuracy is good at my 80 yard range, but not as good as when in the Talon/Dor. I think the very limber barrel is the cause. No better than 1″ at 80 yards. The TD with this barrel is at 3/8″ of better.

              I think I need to look at the possibility of installing a carbon fiber sleeve on the barrel to stiffen it a LOT! LOL  ;)

              KnifeMaker

              #511261
              larrynufer
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                That is some serious energy !!!

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