plain base bullets

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  • #489218
    Ross Smith
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      Anybody: I’m trying some gc bullets loaded as pb bullets. These gc’s work very well in 30-06 but so far do not shoot accurately as pb’s. My best accuracy is 195 to 220 grain bullets and 30 grains of 4895-gas checked. The same 195’s shot as pb would not group with any load of 4895 from 25-33 grains. Best was with 30 grains. My rifle likes 30 grains with any bullet.

      I just ordered the 247 grain whisper bullet in pb form. Maybe it will stablize. any hints or similar experiences???????? thanks , Ross

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    • #507529
      adamsutherland
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        An un-gas checked gas check bullet is not the same as a plain base bullet.

        I like to try my gas check bullets without gas checks for velocities up to say around 1800 fps some time they work sometimes they don’t, if they don’t then a PB bullet usually will.

        My experience is the faster you drive and un-gas checked bullet without a gas check then it will cease to work sooner than a similar PB bullet.

        I have a No4T that I use a 0.315″ GC soupcan in for subsonic loads, it will shoot one ragged hole out to 75yrds checked but give shotgun patterns un-checked, this bullet works well unchecked in my other .303″s at these velocities. Every rifle is different and oft times inexplicably so.

        #507530
        Ross Smith
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          Thanks!  My experience has all been poor with naked gc’s. Tried 3 more loads today. One is ok for the match I’m supposed to shoot in, but I order a pb from Al.

          #507531
          Full.Lead.Taco
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            I have had similar experiences as dromia.  When I leave off the gas checks with a gas check bullet, they don’t group as well as a PB bullet or a gas checked bullet.

            #507532
            micaelnetz
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              I have used a couple of 9mm and .357 GC designs in .38 Special without a gas check with very good results, but I have never tried it in a high velocity round.

              #507533
              milboltnut
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                from what I read, and shot.. leading occurs with non GC bullets, which that’s the only reason for GC’s… and that’s it. If they shoot without leading your bore above 1800 fps.. which I doubt they will, then you’re good. It’s not like shooting flatbase jacketed.. which some say shoot just as well longer range where a BT is needed. I’m guessing the PB bullet bases are being deformed which sounds like that’s what is effecting your accuracy.

                #507534
                ericcashin
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                  I am new to casting/reloading.  Do PB bullets perform similarly to GC bullets with the gas check installed.  Trying to decide which version I should get.  This will be for 7.62×39 in SKS. (Edit) I powder coat with Harbor Freight powder.

                  #507535
                  brigettecuneo
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                    I am new to casting/reloading.  Do PB bullets perform similarly to GC bullets with the gas check installed.  Trying to decide which version I should get.  This will be for 7.62×39 in SKS. (Edit) I powder coat with Harbor Freight powder.

                    My first thought would be what kind of velocity and pressures are you thinking about for loads? another thought was if your wanting max speed and or also a plinker, then maybe the mold your looking for has the option for a gas check and a plain base. Then you can find out which style shoots best for your rifle.
                    So far in my casting experiences which are limited to a couple years, I’m finding some rifles shoot fine as plain based and powder coated, while others shoot unchecked gas check models ok for close range plinking.then again, I also have a project going now where I’m powder coating and gas checking the NOE 311-198-sp. my 30-06 seems to like the combination.
                    Some rifles are picky and others are not.

                    #507536
                    ericcashin
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                      Makes sense.  My friend and I work on this hobby together.  Neither one of us are power shooters and tend to stay in the middle for the loads.  Mostly for targets (neither of us are avid hunters).  I am leaning towards PB.  I have a couple Lee molds that take GC and they have been a bit of a pain.  Could be the checks I have.  I would just prefer not to have to mess with them.  How about the HTC225-60-RN bullets in .223 for AR-15.  Any issue running PB in the AR as long as we are not pushing high velocity?  Twist ratio is 8 to 1 and will also be using it in Mini-14 with 9 to 1 twist.

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