My 22-47 results.

Discussion in 'Small Stuff--22s, 20s, and 17s' started by bobinpa, Mar 10, 2019.

  1. bobinpa

    bobinpa Gold $$ Contributor

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    I thought I would share my experience since there seems to be a need for info on this cartridge. Maybe it will help someone someday.

    First the gun: It's a BAT VR, single shot, Jewell trigger with a Krieger 8 twist HV at 28" and a brake sitting in an HS Precision stock and wearing a Leupold VX3 8.5-25x50 with a varmint hunter reticle and a 3x booster.

    The brass: I started with 12 pcs of brass. I didn't want to do 50 or 100 just in case I didn't get it right. I would rather junk 12 than 50.
    I necked them down using a FL bushing die, in just 2 steps because that's the bushings I had. New brass was .287 - .288. So I went .268 and .252. Using a FL bushing die worked good.
    Next I ran them over an expander, chamfered, trimmed etc and took a skim cut off the necks to get an 80% clean up. This brought the necks down to .0145 - .0146 and a loaded round at .252.

    The load: I started with H4350 based on guidance from ALF, CCI 450s and 80gr SMKs .010 off the lands.
    I loaded 3 - 38 gr, 3 - 38.5, 3 - 39 and 3 - 39.5.

    Since I was breaking in the barrel, I shot 1 and cleaned for the first 3 (38gr) shots. The third cleaning was done in 7-8 patches.
    My cleaning method was 2 wet patches of Butches. Let it sit 5 minutes. 5-6 strokes with a brush then a wet patch or 2. A dry patch then a patch with denatured alcohol on it. Let it sit a couple minutes then a dry patch and lastly a patch with a little Kroil on it. Shoot the next shot and repeat.

    The first 2 shots were right next to each other and the third was about 1/2" low (must have been me):rolleyes:. Since the barrel was cleaning so good I shot the next 3 (38.5 gr)without cleaning in between shots. That 3 shot group measures .472 overall. This load was flattening the primers a little but the bolt lift was fine. Then I cleaned. I shot one more round (39gr) and the bolt lift was a little stiff with an ejector mark on the head of the case, so I stopped. It looks like the load will be around 38.5 or maybe 38.6. I think I'm going to pull the last 5 and make some more up around the 38.5 - 38.6 range .... no need to run hot with this one. I'll post more as it progresses.
    22-47 1.jpg
     
    Pahunter1975, McGraw, Mark W and 3 others like this.
  2. xswanted

    xswanted Gold $$ Contributor

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    What kind of speed were you getting with those loads?
     
  3. bobinpa

    bobinpa Gold $$ Contributor

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    I haven't checked them yet, but when I do I'll post it on this thread.
     
  4. 22DASHER

    22DASHER Gold $$ Contributor

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    Nice looking setup. I am interested to see the final results as I may be ordering a reamer soon!
     
  5. drags

    drags Silver $$ Contributor

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    Hi Bob, I have a 22x47 that I use for Pa. groundhogs and I like it very much longest kill so far is 568 yards. I am interested in your velocity also my load is 38.5 gr. of H4350 with the 80 gr A-Max using a Krieger 26" barrel.
    Drags
     
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  6. McGraw

    McGraw Silver $$ Contributor

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    That’s a very nice rifle Bob. I was curious as good as it is shooting for you if the rifle was glass bedded or just sitting in the aluminum chassis HS stock?
    I will have to do some research on the 3x magnifier, that looks interesting and nice!
     
  7. bobinpa

    bobinpa Gold $$ Contributor

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    Thanks. The rifle is glass bedded. My rifle smith actually mills some of the aluminum out so he can get a thicker layer of bedding in there. His theory (and I agree) is that a thin skim coat may crack or flake off. I think (but don't quote me) that he tries to get approx. .150 of bedding. The optical boosters aren't for everybody, but I like them. Some people can't get the scope refocused with them on. I have to turn my eye piece almost all the way in to get it focused again. Definitely different than without it. Below is a link to their website.

    https://www.bulzeyepro.com/
     
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  8. bobinpa

    bobinpa Gold $$ Contributor

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    Well I'm not sure why but I didn't duplicate my results from last time. The load that showed promise was 38.5 gr H4350 .010 off the lands, this time it opened up. I had 5 rounds left last time so I pulled them because they were too hot. I ran them through the FL die and reloaded them for this session. They were loaded with 38.5 gr and .010 off the lands but they opened up. I don't know if it's because they were pulled or not. Anyway the results were as follows:
    38.5 gr .010 off the lands. Velocity range from 3345 - 3362 5 shot group measures .837 overall
    38.5 gr .020 off the lands. Velocity range from 3320 - 3348 3 shot group measures 1.134 overall (not trying this again)
    38.7 gr .010 off the lands. Velocity range from 3354 - 3395 2 shot group measures .324 overall (this load was too hot.... stiff bolt lift)

    I'm going to try 38.5 .010 off again, just to compare it to the last 2 times. Then I'm going to try 38.4 and 38.5 gr maybe .005 off the lands or even touching or both.

    I'm open to suggestions....
     

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