Beeman Raider 1331

[Blowpipe Sam]

Thank you naptemp!  There are plenty of videos on how to do this for 13XX etc. but nothing yet about the Raider.  I wasn't sure it would work.  What kind of shot count/velocities are you getting?

Last 48 shots (4 mags) shot string (2 days ago) with Norma domed 9.1 grains:
-start at 3500 PSI and 850 FPS
-peak around 885 FPS
-end around 2300 PSI and 850 FPS

I could also get 72 shots (6 magazines) at lower 800s FPS with a 40-45 FPS spread.

Once you install the o'ring buffer (BStaley mod) it's much easier to get efficient tunes.

The airgun also becomes much more QUIET.

Thank you!  Very helpful!  I have at least three O-ring selections.  Do you recommend butyl or nitrile?

[Mzq284]

I got the pyramyd air sale catalog this weekend,  these rifles caught my eye. A 25 might be cool to have,  my 362-25 pounds targets and these run 100+ fps faster.

[Blowpipe Sam]

I got the pyramyd air sale catalog this weekend,  these rifles caught my eye. A 25 might be cool to have,  my 362-25 pounds targets and these run 100+ fps faster.

The C3622 was my first PCP and It left me a little ambivalent toward them.  The price of the Beeman hooked me.  I already had the pump I bought for the Crosman so it was an impulse buy.  This may not be the greatest PCP out there but it changed my mind about them.  I’d get another one of these in .22 but the memsahib would Nail my hide to the shed!

[naptemp]

Thank you naptemp!  There are plenty of videos on how to do this for 13XX etc. but nothing yet about the Raider.  I wasn't sure it would work.  What kind of shot count/velocities are you getting?

Last 48 shots (4 mags) shot string (2 days ago) with Norma domed 9.1 grains:
-start at 3500 PSI and 850 FPS
-peak around 885 FPS
-end around 2300 PSI and 850 FPS

I could also get 72 shots (6 magazines) at lower 800s FPS with a 40-45 FPS spread.

Once you install the o'ring buffer (BStaley mod) it's much easier to get efficient tunes.

The airgun also becomes much more QUIET.

Thank you!  Very helpful!  I have at least three O-ring selections.  Do you recommend butyl or nitrile?

I use cheap Chinese o'ring which are nitrile.

[avator]

10+ years ago when we were all doing the FD-PCP (XS 60 C on hpa) we used the #113 buna if I remember correctly.

[Blowpipe Sam]

As long as they don't dissolve in Silicone lubricant.

[avator]

I had the same ones in the gun I was shooting today for all of those 10 years.

[Blowpipe Sam]

I got out some graph paper and shot a graph of the POI at twenty yards.  Three sheets of graph paper made 33 data points.  Starting from a 2700 PSI fill I shot 33 25.39gr JSB Kings, one at each point in turn. POA was six o’clock on each black square.  The gun was zeroed for 35 yards.  I was only shooting from a bucket and sticks so I figure a margin of error of +or- 5%.  Figure the vertical error is about equal to the horizontal error and it is pretty evident.  Ending pressure was approximately 1300 PSI.  The results were surprising and actually kind of encouraging.  See below.

I've been crunching the numbers on this graph and the accompanying chronograph data.

If I overlay the impact points 20 shots out of 33 fall in a 1/2" group centered 1" above the 20 yard POA.  This corresponds to a <3/4" group at the expected 35 yard POI.  I can hunt with that.  Furthermore 28 out of thirty shots fall within a <1" group at 20 yards.  The total vertical error between all shots is less than 1.25".  If you correct for my less than perfect marksmanship the capabilities of this gun are impressive especially at this price.

[avator]

I got out some graph paper and shot a graph of the POI at twenty yards.  Three sheets of graph paper made 33 data points.  Starting from a 2700 PSI fill I shot 33 25.39gr JSB Kings, one at each point in turn. POA was six o’clock on each black square.  The gun was zeroed for 35 yards.  I was only shooting from a bucket and sticks so I figure a margin of error of +or- 5%.  Figure the vertical error is about equal to the horizontal error and it is pretty evident.  Ending pressure was approximately 1300 PSI.  The results were surprising and actually kind of encouraging.  See below.

I've been crunching the numbers on this graph and the accompanying chronograph data.

If I overlay the impact points 20 shots out of 33 fall in a 1/2" group centered 1" above the 20 yard POA.  This corresponds to a <3/4" group at the expected 35 yard POI.  I can hunt with that.  Furthermore 28 out of thirty shots fall within a 1" group at 20 yards.  The total vertical error between all shots is less than 1.25".  If you correct for my less than perfect marksmanship the capabilities of this gun are impressive especially at this price.

Carter, have you seen Triggertreat's spreadsheet?

[Blowpipe Sam]

I got out some graph paper and shot a graph of the POI at twenty yards.  Three sheets of graph paper made 33 data points.  Starting from a 2700 PSI fill I shot 33 25.39gr JSB Kings, one at each point in turn. POA was six o’clock on each black square.  The gun was zeroed for 35 yards.  I was only shooting from a bucket and sticks so I figure a margin of error of +or- 5%.  Figure the vertical error is about equal to the horizontal error and it is pretty evident.  Ending pressure was approximately 1300 PSI.  The results were surprising and actually kind of encouraging.  See below.

I've been crunching the numbers on this graph and the accompanying chronograph data.

If I overlay the impact points 20 shots out of 33 fall in a 1/2" group centered 1" above the 20 yard POA.  This corresponds to a <3/4" group at the expected 35 yard POI.  I can hunt with that.  Furthermore 28 out of thirty shots fall within a 1" group at 20 yards.  The total vertical error between all shots is less than 1.25".  If you correct for my less than perfect marksmanship the capabilities of this gun are impressive especially at this price.

Carter, have you seen Triggertreat's spreadsheet?

Yes and I commented that I thought it needed its own important post thread.  It's funny.  If I know what equation to use I can work a lot of stuff out with graphs.  I'll need the memsahib's help to work Excel though. 

[Mzq284]

I got the pyramyd air sale catalog this weekend,  these rifles caught my eye. A 25 might be cool to have,  my 362-25 pounds targets and these run 100+ fps faster.

The C3622 was my first PCP and It left me a little ambivalent toward them.  The price of the Beeman hooked me.  I already had the pump I bought for the Crosman so it was an impulse buy.  This may not be the greatest PCP out there but it changed my mind about them.  I’d get another one of these in .22 but the memsahib would Nail my hide to the shed!

My 25 is a converted 362(pumper). I also have a 3622 with a steel breech and a 362 metal trigger guard that has adjusting screws, I'm liking it. It's a good rifle, as long as it's not expected to compare to a $1000 rifle. I like it for what it is,  a basic, lightweight,  no frills rifle. They're not for everyone.

[NorCal David]

Today two things arrived. One is the Beeman Raider .25, yay! The other was a storm, 😂. So I shot a few rounds OOTB and that thing is loud. Have not adjusted the hammer spring yet. The “iron” sights are nicer than the 3622, but do not work for these eyes. Mounted the BugBuster 3-12x32 mil-dot and nailed a dead tree through the rain and wind gusts at 80 yards using the single shot tray. The mag does not fit under this scope with medium rings. I have a cheap CVlife scope that is longer and will probably work, or might buy taller rings for the UTG. For now I plan to just use the single shot tray until the Raider is dialed in (as much as I can). The BStaley mod might be more than I will take on, so hammer spring adjustment to begin. Really liking my introduction to this AG.
Anyone have experience with a moderator? .25 or go up to a .30 caliber moderator?

[Nukall856]

NorCal David,
 Welcome to the Raider Platoon. I have two of Buck-Rail 1/2x20 UNF Moderator/ LDC in both tapered and non tapered. I have only tried the narrower tapered LDC and it works very good and makes the shot report quieter than the target being hit. With a LDC on It does make the Raider longer around 42, 3/4".

NVak

[Blowpipe Sam]

Today two things arrived. One is the Beeman Raider .25, yay! The other was a storm, 😂. So I shot a few rounds OOTB and that thing is loud. Have not adjusted the hammer spring yet. The “iron” sights are nicer than the 3622, but do not work for these eyes. Mounted the BugBuster 3-12x32 mil-dot and nailed a dead tree through the rain and wind gusts at 80 yards using the single shot tray. The mag does not fit under this scope with medium rings. I have a cheap CVlife scope that is longer and will probably work, or might buy taller rings for the UTG. For now I plan to just use the single shot tray until the Raider is dialed in (as much as I can). The BStaley mod might be more than I will take on, so hammer spring adjustment to begin. Really liking my introduction to this AG.
Anyone have experience with a moderator? .25 or go up to a .30 caliber moderator?

Once you back the hammer spring off some the existing muzzle ornament works adequately.   Buck rail sells a moderator that will fit this gun.  I've bought two BR moderators for other guns and while they ain't Donny-FL quality they are good enough for me.  I'm only filling to 2700 PSI and I'm getting 20 good shots (34 total) per fill with the hammer backed out 4 turns.  It definitely quiets the beast down.  Don't expect a whole lot of shots in .25 cal with this sized air reservoir.  I think the Bstally mod will give me another 6-7 good shots per fill.  But that would be enough!  I've never needed more than 25 rounds on any hunting trip.  Just switched to 20.06gr H&N FTT and I think they are going to be the best all around pellet  for this gun.  Definitely getting a longer shot count with the lighter pellet.

[JimT66]

JimT66,

 The hammer adjustment screw is located at the rear of the airtube. Included is the Allen wrench used to adjust the hammer spring tension.
 I need to refill the Raider and try back out the screw another full turn. I'm sure that's add another 3-5 shots to stay within 30 FPS. I'm thinking of using Heavier pellets, heavier pellets should also bring down the FPS spread.

NVak

Thank you sir! Mine did arrive today, and weather permitting, I'm gonna air this beast up tomorrow, and see what she does.

[NorCal David]

NorCal David,
 Welcome to the Raider Platoon. I have two of Buck-Rail 1/2x20 UNF Moderator/ LDC in both tapered and non tapered. I have only tried the narrower tapered LDC and it works very good and makes the shot report quieter than the target being hit. With a LDC on It does make the Raider longer around 42, 3/4".

NVak

Thank you for the info. I only have the BR tapered in .22 and it worked well on another AG. Longer should be fine and quieter makes it worthwhile. Sounds like .30 cal is not necessary so I will go .25.
I like the “Raider Platoon” label.

[NorCal David]

Once you back the hammer spring off some the existing muzzle ornament works adequately.   Buck rail sells a moderator that will fit this gun.  I've bought two BR moderators for other guns and while they ain't Donny-FL quality they are good enough for me.  I'm only filling to 2700 PSI and I'm getting 20 good shots (34 total) per fill with the hammer backed out 4 turns.  It definitely quiets the beast down.  Don't expect a whole lot of shots in .25 cal with this sized air reservoir.  I think the Bstally mod will give me another 6-7 good shots per fill.  But that would be enough!  I've never needed more than 25 rounds on any hunting trip.  Just switched to 20.06gr H&N FTT and I think they are going to be the best all around pellet  for this gun.  Definitely getting a longer shot count with the lighter pellet.
[/quote]
Good idea Captain. I will play with the hammer spring to see how it goes before ordering. I only filled to 2500 psi today since the rain was heavy and I knew it would be a short session. I will order some of those H&N to try and maybe a tin of AirArms 16gr and some RWS Superdomes. I know this Raider will get a lot more use than it should since they do not make cheap pellets in .25, but YOLO. The fun factor counts too.

[naptemp]

The muzzle is threaded 1/2-20.

There is a tiny tube/moderator at the front.
Remove that tiny tube and you can use your own moderator.

[naptemp]

A 1/2-20 moderator similar to the Buckrail moderator can be 3D printed for under $2.
This assumes that you have a 3D printer.

I have 3D printed tens of modcerators so far.
I do not think I will buy a moderator ever again.

[JimT66]

 Ok guys, stupid question here. To remove the factory pipe , I assume the threaded end cap must be removed first, yes? Well, mine is threaded on like someone used an impact gun on it. What is best way to get the frizzlin thing off without grinding everything up.