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  • Users: marquette
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  1. M

    Air Venturi 74 cu ft tank questions

    I just got my first carbon fiber tank. It’s the Air Venturi 74 cu ft. How stiff should the valve be to turn? I have to hold the tank from spinning when I try to open or close the valve. Makes it very hard to control the flow when filling a gun. I’m not a big fan of the pressure gauge. Can I...
  2. M

    Air Venturi vs Four Uncles hand pump

    Amazon currently has the cheapest of the 3 Air Venturi hand pumps for $69. The Four Uncles is $63. Is the Air Venturi any better or is it also a rebranded Chinese pump? I think the more expensive Mk4 is made by Hill but I don’t know about the base pump.
  3. M

    PP800 R

    Does anyone have any experience with this pistol? Airgun Archery has it for sale. It’s a factory regulated PP800 (Bandit). I assume SPA makes the regulator but they could be out sourcing them. It’s about $50 less than a Bandit plus a aftermarket regulator. Maybe the same regulator as the...
  4. M

    Prod trigger group

    Anyone know Crosmans current price on the grip assembly? Last one I got was $48 I think. I ordered a lot of parts on that order and can’t find the invoice.
  5. M

    1377 superSear

    Looking to buy a SuperSear for a Crosman 1377. PM me if you have one to sell Thanks
  6. M

    Super Sear

    Does anyone know where to get a Super Sear for a 1377? I haven’t found anyone that has it in stock. Thanks
  7. M

    Red Dot questions

    I’m setting up a Umerex Buckmark for my BIL eightieth birthday present. I’d like to put a red dot on it but I’ve never used one. I’ve looked online and see there are 2 basic types. One with a tube like a optical scope and open ones without a tube. Which is a better style for a low powered back...
  8. M

    PROD in Marauder rifle stock

    I’m thinking of trying to fit a Prod into a Marauder rifle stock. I’ve got a Challenger trigger group and trigger guard which will work on a Prod. The forearm on the rifle stock would need to be shortened so I’m thinking a wood stock would refinish better than synthetic. Barrel band would also...
  9. M

    Grip sleeve

    Does anyone know which of the Pachmayr or Hogue grip sleeves fit the Crosman pistols? They are all sized by powder burner pistols. I’m looking for one for a 2240 and a Prod. I think they would be the same 
  10. M

    PROD vs Bullpup

    I’ve been thinking about a pistol carbine for a while. Front runner would probably be a Prod but have been looking at others. Is my looking I came across a post where the poster said he thought a bullpup felt and handled like a pistol carbine. I had never really thought about a bull pup because...
  11. M

    3D printed cheek riser?

    Is any one here on the forum or know anyone that is printing cheek risers for the Crosman 1322 stock? I have found files to print one listed on Google but I don’t have any idea how it’s done or have a 3D printer. With all the 1322 stocks out there needing a cheek riser I’m surprised no one is...
  12. M

    Benjamin Maximus Pistol/Carbine

    Awhile ago I was trying to decide if I wanted a Prod or a 1720T and was weighing the merits of both here on the forum with help from members when Milehighairgunner suggested I just convert my Maximus. He sent me a photo of a members Discovery that had been converted. I did some research here...
  13. M

    Simmons 2.5-7x28 handgun scope

    I'm helping a friend take care of her dad's estate. This appears to be a unmounted in the box scope. Made in Korea. I'm assuming it's 10-20 years old based on his health in his later years. I can't find any information about it. I'm just trying to determine if it was a $50 scope or $200...
  14. M

    .177 vs .22 at 12 FPE

    I'm trying to decide between a Benjamin 1720T or a Prod. I've gone through all the comparisons of mag vs single shot, price, stock included, etc. I know I have to increase the power on a 1720T or decrease the power on a Prod to have 12 FPE. I'm not very good with Chairgun trying to figure how...
  15. M

    Tuning Barrel length vs velocity

    I keep reading about increasing barrel length will increase velocity to a point and then have no effect. Is there a formula that gives increase per inch of barrel? I'm sure that caliber has to also be in the mix. Does a fast starting speed have more effect because there is more pressure or...
  16. M

    Pressure regulate tank output

    I did a search and didn’t find anything about regulating the output of a scuba or scba tank. I was wondering about putting a adjustable regulator and a easy to read gauge on my scuba tank set to the fill pressure I want (1550 psi). Thinking that no matter who fills the gun it is at the right...
  17. M

    Questions about AO and Parallax

    I'm looking for a backyard plinker scope. Low magnification 4x, 1-4x, 2-7x something in that range. 90% of the targets will be 20-40 yards that will be 1-3 inches in size. What is the depth of field on a AO scope? For example can I focus on a target at 30 yards and easily see a target at 20...