Need a comp rifle with max 600fpm

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otis1016

Member
Feb 10, 2022
135
92
Alabama, United States
Evening everyone,

I've mentioned here a time or two that I purchased a Beeman CO2 rifle for use as a competition rifle. The CMP in Alabama has some matches throughout the year that interest me so I started asking around. The Beeman is one that uses one or two 12mg CO2 cartridges and will easily get 60 rounds down range accurately. CMP allows only .177 for this series and that may be a standard but I am learning as I go so I'm not sure. One thing I never asked about was max fps. I just figured that this is a fairly standard rifle and would do for competition on an entry level. I've attended a couple of matches as a spectator and was impressed by many of the high-end comp rifles I was seeing in use and it turns out that there are several loaners available. Still it never occurred to me that my rifle would not be legal for this. Turns out the max fps is 600 and mine is shooting about 650. I don't know of any way to tune it down, haven't found any sort of adjustable regulator so I'm faced with buying another rifle. Not a bad problem to have but this time I need to get something that can at least be tuned so what would anyone suggest? I don't want to spend a kings ransom on it since I just do this for fun and not as a serious competitor. Suggestions? Thanks.



Rick H.
 
Funny that this came up just now...

I've been going through a .177 cal QB78 SAG (standard) for a friend and it was shooting 7.9g pellets at just under 600-fps while getting a bunch of shots (over eighty) from a pair of cartridges. When I pulled the barrel off to clean and lap it, I found that the transfer port was very restricted. (See pic.) Now that the seal has been replaced with one with a larger inner diameter, it's shooting in the 660-fps range.

I imagine that you can install a transfer port seal that reduces the amount of gas like his did. The inside diameter of that port seal is .125″ and the outside is .272″. I plan to do some experimentation with my .22 cal QB in the near future to see if a balance of good accuracy and economy can be found.

His gun really likes Crosman wadcutters and Destroyers, so you might give them a try.

Stay safe,

J~



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It's the Civilian Marksmanship Program. They have ranges here in Alabama, Camp Perry and other locations. It seems to be a busy organization, there are service rifle and rimfire matches and some others at the Talladega range but the airgun matches are close by in Anniston at a very nice indoor facility. The next ag match for my age group isn't until September but the younger crowd comes from as far away as New Jersey and probably other distant locations. They bring shooting suits, advanced rifles and handguns and accessories. They are serious competitors and while I was one for a while in centerfire matches I'm interested now in just having some fun. There is a rimfire match at Talladega next weekend I'm going to try and make. 

As for the Beeman I dropped it off at the shop where I bought it and the smith says he will be able to tone it down to 600 fps without any problem. I didn't know about that velocity limit and so went to a match with my rifle and couldn't compete. It was annoying since it was a 90 mile one way trip. I hope to have it all sorted out in a week or so. Actually with a peep sight this Beeman is giving me sub one inch groups handheld at 10 meters and for the price I'm quite happy with it. 



Rick H.
 
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Just for the record, I dropped the rifle off at the smith's shop about 10:30 this morning telling him there was no particular rush. He called around 6 this evening saying it's ready to go adding that in normal temps it will go between 590 and 600 but if I shoot in high temp situations it is likely to go over 600. No surprise there of course but since these are indoor matches it should not prove to be a problem. It will take me a total of an hour to make two round trips out to his place and pay him $65 for the work. Doing it myself would have taken more time and I'd have had to order parts. Even with gas at $4.29 it's money well spent as his work has always been excellent and he stands behind it. We'll see tomorrow how it shoots.

Rick H.
 
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And less than 24 hours after dropping it off I picked the Beeman up ready to go. The smith checked speeds on three different pellet weights and had to experiment a bit with slowing it down but now it shoots anywhere from about 573 to 592 fps depending on pellet weight. I brought it home and tested it at 10 meters and something close to 20 meters. I was worried it might shoot a little low at 10 but it was perfect and still groups about 1/2-3/4" shooting freehand. 20-ish meters I was just shooting a spinner target and a couple Coke cans but still under an inch. It's funny, this is billed as a budget/entry level comp gun but it's well made, uncomplicated and shoots well. Not sure what more I could ask for at the under $300 price tag. I'll not bore you any further with this experiment but I certainly learned a lot in the process.



Rick H.
 
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