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#1 Air Rifle Hunter

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Posted 25 August 2011 - 04:53 PM

Happy Times! :653: :653: My brand new Benjamin Marauder .22 cal PCP air rifle came in today. First thing I did after unpacking was to inspect the barrel. That had to be one of the cleanest barrels I have ever seen. Absolutely sparkling clean with no residue at all. After checking the barrel and inspecting everything that had arrived, I began assembling the air pump. Then I mounted the scope rings and mounted the Leapers 4-16x50 AO IR MD scope. After getting the eye relief correct and making sure the cross hairs were level with the rifle I proceeded to hand pump to fill the gun up. The initial fill took about 200 pumps. I really wasn't as bad as I thought it was going to be. I did 50 pumps and stopped then would continue for another 50 (so that the pump would not overheat) and so on until it was filled. Then I began to zero the scope in at 20 yards (the farthest I can shoot in my backyard). I loaded up the clips with Crosman Premier Hollow Points (14.3 grain pellets) and within 4 shots I had it smacking the exact center of the bullseye and the subsequent 5 shots to follow made about a 3/8" pattern at 20 yards. I really, really like this rifle and scope. The only thing I would have changed was the finishing of the stock. It looks like someone wanted to get it done and go home :smiley-outta-here: . Really not the best quality I've seen :wacko: . My Benjamin Trail NP XL 1100 has a better finish on it's stock than the Marauder does. Eventually I think I'll do a nice camo job on it anyway (once the stock gets a few nicks and dings in it). After getting it sighted in here is the chrony string with the factory settings:Starting PSI = 2600Shot FPS------ -----1 = 879.02 = 880.43 = 878.54 = 875.75 = 877.16 = Error7 = 870.88 = 871.09 = 864.710 = 861.7Second Clip11 = 857.812 = 857.213 = 855.514 = 850.915 = 846.316 = 844.517 = 842.718 = 841.619 = Error20 = 832.8Third Clip21 = 830.422 = 827.123 = 823.124 = 817.225 = 808.926 = 809.427 = 809.828 = Error29 = 801.930 = 798.2Ending PSI = 1800 I can't believe how quiet this rifle is. It's way quieter than my Gamo Whisper .22 and bit quieter than my Benjamin Trail NP XL 1100. Once I put in a de-pinger it is really going to be "silent but deadly". A couple of the shots when I was testing before I started the chrony string hit about 920 FPS, but that must have been a fluke. I would like to adjust the velocity up a little more and adjust for a higher fill pressure so that I can fill up to around 2800 to 2900 PSI and get at least the first 10 shots to hit above 900 FPS (as long as these 14.3 CPHP pellets will stay stable at that setting). Most of the shots I'll take while hunting will be between 25 and 55 yards out. I'd like it to still have good take down power at 55 yards and maybe even out to 65 (though I know that's pushing it). If anyone has any suggestions for setting and adjustments that will achieve what I mentioned above, I'd be grateful if you'd let me know what I need to do. I can't wait to get this out to the field and try knocking out some ground nutters (not to eat) or carrot munchers (to cook and fry up!). I'm so pumped! :pirashoot:

#2 airgunny

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Posted 26 August 2011 - 12:11 PM

I got mine in 09 the day after they went public.It started shooting shotgun patterns but since I bought it fromMac-1 Tim still warranteed it (last week) and put a new barrelon it for free.Open up the velocity metering screw a bitand run some Kodiaks through it. You won't get as manyshots per fill but will hit 30fpe peaked around 1800- 2000psi.
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#3 Air Rifle Hunter

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Posted 26 August 2011 - 03:07 PM

Ok. I turned the velocity adjustment 1/2 turn counter clockwise. Then filled to 2750 PSI. The following were the three shot strings I got using the CPHP 14.3 that I currently have:Starting PSI=2750Clip #1: 1=927.3, 2=928.2, 3=931.4, 4=929.4, 5=928.7, 6=933.1, 7=928.2, 8=930.0, 9=931.1, 10=926.4Clip #2: 1=922.0, 2=923.9, 3=917.7, 4=915.4, 5=913.8, 6=907.8, 7=907.6, 8=901.0, 9=897.1, 10=897.4Clip #3: 1=894.4, 2=889.8, 3=881.0, 4=879.2, 5=875.3, 6=871.9, 7=866.6, 8=861.3, 9=857.1, 10=855.4Ending PSI = 1800 I think next time I might fill to 2800 or 2850 and see what type of velocity strings I end up with. And as soon as I run out of these CPHP's then I'll order some kodiaks and some JSB's and try those out. It's definitely a nice rifle!

#4 Butcher45

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Posted 26 August 2011 - 04:26 PM

Clip#1 looks great just like that with those pellets.....I'd test the accuracy with that fill pressure before moving on up to higher power/Kodiaks just to see how it performs with those CPHP's at that apparently optimum speed (right before the transonic barrier zone).

#5 airgunny

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Posted 26 August 2011 - 04:52 PM

I've not messed with any other internal adjustments with mine but with the factoryhammer preload settings you'll likely end up with valve lock if you fill any higher.I agree low 900's are optimum but the reason I brought up kodiaksis the higher BC and long range retained energy. Chairgun has kodiaksstill putting out 15 fpe @ 100yards starting @ 30 fpe at the muzzle.I've danced spent shotgun shells @ 55 yards with ease with kodiaks.18.1 jsb's also have a high BC.Fun gun eh?
weapons are nothing but tools to be used properly. like any other tool.

#6 Air Rifle Hunter

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Posted 26 August 2011 - 05:41 PM

Fun gun eh?

Absolutely! I love this gun!

#7 ratassassin

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Posted 26 August 2011 - 07:08 PM

Congratulations. I've been thinking about a Marauder for some time now. What kind of groups will it shoot at 50, 75 and 100 yards?

#8 airgunny

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Posted 26 August 2011 - 07:49 PM

Trigger adjustment is also easy. I have mine around 2 lbs.
weapons are nothing but tools to be used properly. like any other tool.

#9 Air Rifle Hunter

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Posted 27 August 2011 - 06:18 AM

Congratulations. I've been thinking about a Marauder for some time now. What kind of groups will it shoot at 50, 75 and 100 yards?

I'm not sure about what groups you might get at those yardages just yet. I will post my grouping information once I get out where I can shoot at longer ranges. I know that I've watched videos of a guy from Varmint Air website that hunts with a .25 caliber Marauder and easily head shots ground squirrels at 75 yards and further. I think the .25 Marauder is the way to go if you are shooting in wind too, but with practice I'm confident that I'll be able to hit my target at the same ranges until I save up for the .25 cal Marauder. I have personally gotten a head shot on a ground squirrel with my Benjamin Trail NP XL 1100 (.22 cal Break Barrel Rifle) at 60 yards and knocked him out instantly. So I'm positive that the .22 Marauder can do better than that too; especially using a heavier pellet with more FPE for take down effectiveness! For the price, I think the Marauder is an awesome deal!

#10 CBR400RR

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Posted 27 August 2011 - 04:11 PM

I setup my .22 M-rod to shoot the JSB 18.1 at around 897+ FPS and I'm filling the gun to 2900psi and it's still very accurate.

.177 Custom 1377c, .177 TX200 MKIII, .177 FWB 300su .177 R.A.W. TM1000, .22 M-Rod tuned, .22 AA S410 - SL XTRA FAC, .22 Theoben Rapid MKII AZ tuned, .25 Daystate Air Ranger tuned, .25 HM1000x, FX Boss .30


#11 Air Rifle Hunter

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Posted 27 August 2011 - 06:08 PM

Do you happen to remember what your settings were (if you don't mind me asking)?

#12 CBR400RR

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Posted 28 August 2011 - 04:57 PM

Sorry I don't I will look to see if I wrote them down in the book.

.177 Custom 1377c, .177 TX200 MKIII, .177 FWB 300su .177 R.A.W. TM1000, .22 M-Rod tuned, .22 AA S410 - SL XTRA FAC, .22 Theoben Rapid MKII AZ tuned, .25 Daystate Air Ranger tuned, .25 HM1000x, FX Boss .30


#13 airgunny

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Posted 28 August 2011 - 05:18 PM

I recall varmintair getting 30 shots @ 30fpe from 3000 psiwith adjustments maxed with 18.1 jsb's.Another idea, run some 28.4 Eun Jin's thru it.They'll come out maybe 720 which puts you in the neighborhoodof a cci .22 CB cap.
weapons are nothing but tools to be used properly. like any other tool.

#14 Air Rifle Hunter

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Posted 29 August 2011 - 09:03 AM

Sorry I don't I will look to see if I wrote them down in the book.

Thanks! If you find it, great and if not... I appreciate you lookin'.




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