biohazardman

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    biohazardman
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    Another way to judge pellet head sizes is to do the roll test.  This is of course after you have weighed them and used the Pelletgauge to measure them.  This really sorts things out very well.  You end up with three head sizes for every weight and plenty of rejects to shoot up.

    https://airgun101.com/index.php/component/allvideoshare/video/pellet-sorting-pt-4-yrrah-roll?Itemid=421

     

    https://pelletgage.com/

     

    Then I get online and buy NSA slugs so I don't have to do this anymore.

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    biohazardman
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    I would never expect two different projectiles to perform the same with the exact same settings/tune on the gun as that very seldom happens.  When I tune my gun it is for an individual single pellet or slug.  Now and then the tune is good for more than one projectile but still it will slightly favor one over the other.  So your gun plainly prefers the H&N over the NSA at the settings you are running at this time. And they are shooting very well and consistent at that short range. But with a slight change in the tune it could just as easily be the other way around. Once you have consistency at short range you have to double or triple the range to really know how the individual projectile is shooting. Your tune is not complete until you do. Me, I never stop tuning, change pellets tune again, change to slugs tune again, change velocity tune again ect ect…

    Thanks for the video.

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    biohazardman
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    Might want to check this out first.  Ended up being the timing on the barrel liner.  Just had to adjust/twist the liner a bit to bring it up.  Also you can shim under the guns scope mount rather than inside the scope rings.

    https://www.airgunnation.com/topic/poi-3-low/

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    biohazardman
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    Looks like a great deal for the money to me. Congrats.  I think you posed to use them right side up though.  ;^)

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    biohazardman
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    There is nothing here!

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    biohazardman
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    If you have the relay here is how it's wired.  There are three black wires coming out of that middle connector one of them goes to the gauge. You can see the plug to the gauge in the background.  As far as hooking it up goes it does not matter which one is red or black it's just a switch and switches don't care.

     

     

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    biohazardman
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    nervoustrig

    Here's one I did this week.  Getting a picture of the bore is beyond my abilities apparently.

     

    That was after J-B Bore Compound followed by Bore Bright.

    And the new crown:

     That is one nice looking barrel and crown.  Decent picture as well it's not easy to get a good pic of the inside and crown of a barrel like that.

     

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    biohazardman
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    I researched this awhile back but did not purchase it as I have an ATN 4K that should werq for my needs.

    Expect this should help some in the lens category.

    https://www.airgun101.com/index.php/component/allvideoshare/video/tutorial-gopro-hero-5-6-or-7-lens-change?Itemid=407

    I know this is not exactly what you are after but at least it is not the spendy backbone system. It is built well and werqs for under $300.

    https://www.side-shot.com/online-store/Gopro-Hero-5-6-7-case-p133660209

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    biohazardman
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    I'm sure that the Kral, Diana, Artemus can easily be modified for a bit more power by drilling ports or spring changes depending of course on their barrel length.

    You can also go to the Crosman custom shop and build your own gun on a budget.  I went with the KT2400 because you want the longer tube length. Build is with the standard Crosman barrel although I would suggest the .22 14.6” LW barrel for a bit more money.  Yes, you will need some pistol grips they are dirt cheap or get some nice wood for it.

    https://www.crosman.com/custom-shop/#

    Next is the Baker Max Flow system.  It will set you up for a bulked gun. Install the valve in the tube then mark the tube and drill three holes for 8×32 screws through the tube and into the valve.  See that they are in line with the transfer port and include the already drilled #6 screw hole on the bottom of the tube. 

     

    Mark tube

    Drill tube

    Thread tube and vavle inside

    Install three 8×32 grade 8 screws and your good to 2000psi. I have used a similar set up for many years without problems and others have tested the tubes to 8-10K PSI.

    https://www.bakerairguns.com/product/boss-max-flow-system/

    This mod should put you at near 20FPE with the 18.2 JSB pellets and I would expect somewhere in the 14-20 shot per fill area.  You can increase/decrease the power a bit with a slight pressure increase/decrease or better yet a hammer spring adjuster which is always a good thing for tuning purposes.

    Total cost $153, $208 with the LW barrel.  Only drawback is it is a single shot.

    I wish you luck with your journey.

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    biohazardman
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    Many PCPs not just break barrel spring guns have significant barrel droop.  You can shim as suggested above or get a 20MOA mount or adjustable rings to overcome that problem.  I originally shimmed, put washers underneath the guns scope rail, then put on a 20MOA mount then broke down and got the FX No Limit adjustable mounts for my impact.

    UTG 20 MOA riser mount picatinny

    https://www.amazon.com/UTG-Leapers-MT-RSX20MOA-Elevated-Picatinny/dp/B01M1KP7PD/ref=sr_1_3?dchild=1&hvadid=77996657327098&hvbmt=be&hvdev=c&hvqmt=e&keywords=20+moa+scope+mount&qid=1581823089&sr=8-3

    FX No Limit 30mm adjustable rings Weaver

    https://www.airgundepot.com/fx-airguns-no-limit-scope-mount-30-mm-weaver.html

    FX No Limit 30mm Dovetail

     

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    biohazardman
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    You may be able to use a lighter pellet but watch for what the manufacturer dictates as you could eventually damage your gun if it is to light.  Also a lighter pellet may alleviate some of your trajectory problem at short to medium ranges but at longer ranges it will drop off more quickly than the heavy pellet because of the increased BC. I have both .177 and .22 spring guns and am happy with that. But I usually shoot my PCPs as they shoot so much flatter for so much further.  Unless of course they run out of air and that's why I always have a springer with me. ;^)

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    biohazardman
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    You may want to consider these or similar as there is usually a decent amount of barrel droop in many airguns and they can be adjusted to give you back your elevation adjustment.  There are a couple of other decent brands out there and some cheap junk so be careful with your purchase.  With a 50mm lens on your scope you should be able to get by with medium mounts for the most part but manufacturers are not all consistent in their measurements of what they consider medium and high mounts so do some research before you buy.  You also need to consider your magazine and stock height as well as the shape of your face as these have a lot to do with your scope height needs. I would say that as stated in other posts above you are safest with a high mount.

    https://www.airgundepot.com/fx-airguns-no-limit-scope-mount-30-mm-dovetail.html

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    biohazardman
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    Started back in 1960 or so when I was eight or nine with a Daisy model 36.  Somewhere in the 1970s as a teen I got a Benjamin 342.  As an adult in the 1980s I purchased with a Diana 45.  Then the Crosman 2240 in early 2000 and that is where the real addiction started.  There were so many parts available and mods to make the possibilities were endless.

     

    Benji 342

    Late 80s Diana 45

    The lowly 2240 caused a lot of craziness in my life.

    And this was only the beginning. I was determined not to collect guns I would only purchase those I would use.

    A few pistols were purchased or modified under the same guise.

    Crosman 1377, stolen in late 2010, only stock parts are the tube and gripframe

     

    .25 folding stock 2250 carbine with DAQ upper, stolen in late 2010, With too many mods to mention once again the tube and gripframe are the only stock parts.

    2240 gripframe Discovery PCP tube .25 DAQ upper Cocoran stock.

     

    Modded a Nightstalker, stolen in late 2010, to shoot a bit harder and be a bit quieter.

    And then there is the Ratgun all modded up with a Discovery tube 2240 gripset, BNM repeater breach, the stock off my S&W MP15 and a nightvision set I put together for it.

    And there is the latest springer a Diana 54 very nice gun it is.

     

    What would the collection be like without a couple of PCPs?  That is only a couple I do not plan on collecting these only buy what I will use says the addiction.

    2019 purchase MK1 gen2 Impact with a few mods of it's own.

    2020 purchase LCS SK-19 stock from the factory with a defective barrel and a scope complete with an o-ring and a kitchen sink seal ring as well. Oh and I guess the 580cc tank I stole off of my Impact.

    Wow did I do all of that?  I am a sick and addicted soul. ;^)  Got to love that!

     

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    biohazardman
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    My guess is that it would depend largely on the manufacturer how thick the lines were at full magnification.  I have not had that problem with my SWFA or Falcon ffp scopes and I can see above that the Aztec and Athlon scopes don't have that problem either.  But I have seen some pretty thick lines on some scopes like the Bugbuster and others that are less expensive .

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    biohazardman
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    legionair

    Nice. I’ve got some 6061 but it’s 4” diameter. A little to big to make a dummy cart😂

    Hey Luke it sounds like the addiction is not strong enough in this one yet. ;^)

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    biohazardman
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    For those with some kind of sickness it is a must have for sure. ;^)  I don't know how you got along without it for this long.  $30 is a cheap price to pay to feed the addiction for a few days.  Better hurry before they run out of your favorite color. I just checked and it really does hit on my finger as well I don't know why Evil FX did that to us.  My poor trigger finger it complains near every shot now even though I never noticed it before. Grrr there goes another $30 for a tiny piece of nicely machined aluminum. ;^)  Oh, how rough it is living in the first world.

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    biohazardman
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    biohazardman
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    A lot of good info here. You can treat the gun much like the 22xx guns as far as valve mods go so a slightly larger t-port and angle the valve port will get you a bit more power.  If you don't go overboard you will not get less shots just a little more fpe.  The slightly shorter slightly stronger hammer spring is a great mod for sure and one I always use.  The hammer spring adjuster is a good mod for help when tuning. Here is a link that may help you with some of this.

    https://www.airgunnation.com/topic/crosman-maximus-cal-177-tuning/

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    biohazardman
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    Looks like you got it figured for yourself and the rest of us as well.

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    biohazardman
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    ATN ABL install instructions from ATN with pictures. ;^)

    https://manual.atncorp.com/atn-auxiliary-ballistic-laser/#id4-turning-the-device-on

    My quick release levers for the scope get in the way for the more rearward install.

    Thanks for the info on getting out of the loop.

Viewing 20 posts - 1 through 20 (of 944 total)