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91
General Airgun Forum Discussion / Re: longest marauder kill
« Last post by Monkeydad1969 on February 12, 2018, 09:01:21 PM »
Nice shootin', Red! Glad Monkeydad was your witness. Would've been rather hard to believe otherwise. Great shooting!!!

I'm still trying to believe it.  Lol!
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Airgun Ammo / Re: Cast some .45 and .58 airgun ammo today
« Last post by Alan on February 12, 2018, 09:51:37 AM »
As I said, I'm no expert. When I used to do a lot of it, I had a temperature controlled mold heater (nothing more than a fancy hotplate), and that helped a lot. The lead pot was temperature controlled too. The one thing I always had some issues with were hollows. That's temperature related too.

I see commercial cast bullets, that almost look machined. How they get them that good I don't know. Of course, there is swaging, but that is when things get really expensive.
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Airgun Ammo / Re: Cast some .45 and .58 airgun ammo today
« Last post by steveoh on February 12, 2018, 09:42:59 AM »
I am NOT a casting expert, but a few of those appear to be poured a bit cold. Or are they smoother than they look?

This is exactly my second time casting bullets, so I am anything but an expert. I'm more like a rank amateur. :)

My lead pot is just about maxed out in temperature setting. I will admit to not knowing what the lead temperature is, though I do have a thermometer ready to stuff batteries in.

The Minies were pretty rough. Remelted a ton of them. I'd dip the mold in the lead trying to keep it hot, but I don't think it worked. The wind was hooting, and getting chilly, and I'm sure the lead was cooling as it was pouring. Summer will be better for casting outside. Inside? Nope. Don't want lead and other stuff fumes floating around.
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Airgun Ammo / Re: Cast some .45 and .58 airgun ammo today
« Last post by Alan on February 12, 2018, 04:04:19 AM »
I am NOT a casting expert, but a few of those appear to be poured a bit cold. Or are they smoother than they look?

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Airgun Ammo / Re: Cast some .45 and .58 airgun ammo today
« Last post by int3man on February 11, 2018, 07:18:35 PM »
Are you planning on blasting those mice into Nevada or what?

Looking Great!
Michael :- )
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PCP, C02, and Helium Powered Airguns / Re: Any Interest in 6mm ? - Build Thread
« Last post by rsterne on February 11, 2018, 06:05:05 PM »
I got lots more done on the receivers today.... This reduced the weight of them quite a bit.... and vastly improves the appearance....



The top and upper edges are now milled down, leaving raised areas where the dovetails for the scope mounts will be.... I also bevelled the top corners as well.... When I machine the dovetails I will be angling them down 20-25 MOA at the front to put the barrel on POA at 100 yards with the scope still optically centered....

Bob
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Airgun Ammo / Cast some .45 and .58 airgun ammo today
« Last post by steveoh on February 11, 2018, 05:08:42 PM »
Cast a bunch of .45 (.457) and .58 (.575) for the 909s and the two DAQs.

Had the best luck with the Accurate mold for 2 x .58 and 1x . 45. These are similar to the EPP UG.

Cast some hollow point .45 using a Noe 4 x .45 mold. Had a bunch of wonky bullets, but that may have been because the temperature outside where I was casting got a bit chilly.

Also cast some .58 Minie Bullets using a Lyman mold. Never did get a great bullet out out of that. It has a hollow base so we’ll see if either DAQ likes them.

Cast a few .58 round balls to get warmed up. I now realize why folks pay for the quality of an Accurate or Noe mold. The Lee round ball mold is light weight compared.

I’m short two handles! Pain to change them out in the middle of casting, so I reckon I’ll be looking for a couple.

Overall I think the casting was a success and I had fun.
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Interesting writeup. And it is also interesting about the valve slamming shut. A similar bleed technique is used in balanced sprinkler valves to prevent hammering (just a different name for the same problem).

Balanced valves will become more popular, that I have no doubt. And I also feel more work is yet to be done on electronic valves as well. Some day, someone will incorporate a piezo-electric valve, and we'll all be in further awe.

Yes, the seat pounding is indeed not to be overlooked or ignored. Unlike a sprinkler valve driven my Hydraulics our AG valves are Pneumatic with no fluid to damp the contact.  Where I could see & understand not wanting or needing a FAST closing cycle in a sprinkler valve ... WE DO !!! being it goes hand in hand with reducing dwell.
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PCP, C02, and Helium Powered Airguns / Re: DEMYSTIFYING " What is COBRA valve tech ? "
« Last post by Alan on February 11, 2018, 01:12:01 PM »
Interesting writeup. And it is also interesting about the valve slamming shut. A similar bleed technique is used in balanced sprinkler valves to prevent hammering (just a different name for the same problem).

Balanced valves will become more popular, that I have no doubt. And I also feel more work is yet to be done on electronic valves as well. Some day, someone will incorporate a piezo-electric valve, and we'll all be in further awe.
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PCP, C02, and Helium Powered Airguns / DEMYSTIFYING " What is COBRA valve tech ? "
« Last post by Motorhead on February 11, 2018, 12:37:16 PM »
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