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You may find some tins shoot better than others. I have some crosmans that won't shoot worth beans and others that shoot excellent. JSBs are for the most part pretty consistent though.

Yes, to everything above  :-)  I did some casual shooting at spinners off of sticks and can say that crosmans were the perfect pellet for that purpose.
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Followed!  Keep on posting  :-)
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General Airgun Forum Discussion / Re: Why Airguns?
« Last post by mcoulter on Today at 09:36:28 AM »
Why AirGuns?

1.  Ability to shoot in my backyard safely.
2.  The challenge to shoot long distance with just air power.
3.  The aesthetic beauty of these guns in all their shapes and forms.
4.  The engineering that goes into the design that allows these guns to function as well as they do.
5.  The fact that after and a few hours at the range with two or three guns, I don't have to spend several hours at home tearing down and cleaning every time.

When I tell some of my PB shooting buddies what I paid for my guns, they are amazed.  Most don't pay near that much for their PBs, but when I have them shoot my FLex, they are all amazed and begin to understand the engineering that is the basis for the cost.

Ncrary you summed it up PERFECTLY here!    ^^^^^^^^^^
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PCP, C02, and Helium Powered Airguns / Re: Any Interest in 6mm ? - Build Thread
« Last post by rsterne on February 20, 2018, 06:08:53 PM »
The pilot is 0.232" and slides easily into the lands (which I measured at 0.234").... It then steps down to 0.220" and then a taper of 1 deg. per side starts from there.... That continues until it reaches the diameter of the grooves 0.243" (about in the middle of the flutes) and then continues back parallel at that diameter to cut the chamber.... It then steps down again to 0.220" for enough length allow you to feed the reamer deep enough to cut the chamber plus about 1/4".... The shank is simply the 3/8" drill rod I started with.... It is long enough to bottom in the Jacob's chuck in my tailstock, so that it can't slide back.... Both chucks have to be very tight to prevent the barrel, or the reamer, from slipping in them.... as the loads are very high.... If you feed too fast, you can weld the reamer into the barrel, and break it.... Don't ask how I know that....  :-[

You can actually see where the tapered leade stops and the straight chamber starts because of the lighting (a total fluke, from the flash).... The lighter blue reflection is on the taper, and where it stops is where the angle changes (only 1 deg.).... Behind that the reamer is straight.... The only part that actually does any cutting is about the last 3/16-1/4" of the taper, which cuts a taper in the rifling to form the leade in the barrel.... Ahead of that (over 3/4 of the tapered part) is smaller than the lands and doesn't touch anything.... The parallel section rubs along the chamber and polishes off any high spots, leaving it parallel, and hopefully the right diameter that a sized bullet just slides in until the nose hits the tapered leade.... It is critical to stop feeding the reamer at the right depth so that the bullet is seated against some part of the leade.... Too short a chamber and it is hard to close the bolt.... and too long a chamber and the bullet will not be against the leade, and get a "running start" before it engages the rifling.... There us usually about a 1/8" range of length of bullet that will fit any given chamber properly....

Bob
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Hajimoto's Airgun Annex / Re: Benjamin Marauder GEN2 Weight Loss (VIDEO)
« Last post by mobilemail on February 20, 2018, 06:06:59 PM »
Very well done sir!  Thanks for making this tutorial available to the community at large.
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PCP, C02, and Helium Powered Airguns / Re: Any Interest in 6mm ? - Build Thread
« Last post by Christopher on February 20, 2018, 05:07:53 PM »
Bob,
What is the diameter at the end of the reamer that would enter the barrel first (with no flutes)? Then how much taper do you have have on the fluted part?
BTW, great job on the reamer  8)

Thanks,
Chris
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PCP, C02, and Helium Powered Airguns / Re: Any Interest in 6mm ? - Build Thread
« Last post by rsterne on February 20, 2018, 04:33:36 PM »
Here is what the finished reamer looks like....



It was hardened, polished, and them tempered for 30 min. at 465*F, raising the temperature to 480*F for the last 5 minutes because it was a little too pale a straw colour.... The result is a nice brown, the way I like my reamers....

Bob
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Hajimoto's Airgun Annex / Re: Benjamin Marauder GEN2 Weight Loss (VIDEO)
« Last post by oldpro on February 20, 2018, 02:44:08 PM »
 Stupendous work!!! Thats how its done right.
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Hajimoto's Airgun Annex / Re: Benjamin Marauder GEN2 Weight Loss
« Last post by Hajimoto on February 20, 2018, 12:32:28 PM »
This is a very well done video, and one even a neophyte can follow. Hats off to Hajimoto!
I resemble that remark!  ;D
Thanks for the kind words Alan!
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The aluminum air tube is the answer to my light weight build.

This opens the door for a lighter double airtube project. Imagine increasing your shot count with slugs or high power tune.

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