My Own Newish Yard Toy
![](https://www.yumabassman.com/wp-content/uploads/2024/07/Marauder-225x300.jpg)
Then it happened. Field Supply had a, refurbished 25 BullBoss for about 2/3 the price of a Marauder. I pulled the trigger before really researching the gun. Then I discovered people reporting not great groups, and PyramydAir showed it as a 4 out of 5 on their loudness scale. I was concerned I would not be able to make much use out of it. Not in the yard anyway,
![](https://www.yumabassman.com/wp-content/uploads/2024/07/BullBoss-225x300.jpg)
The action is louder than the report. Either my gun is shooting under power (doesn’t seem like it, but I haven’t setup the chronograph for it yet), or Pyramyd Air was full of it. The action is louder than the report and the sound of a 25.39 grain pellet smacking the steel plate on a spinner is a lot louder than any part of the shot cycle.
I have not bench rest grouped it yet either, but so far it hits what I point it at. CLACK! CLACK! CLACK! The only spare scope I had was a cheap 4X Bushnell, but it seems to be fine.
Now don’t get me wrong. It doesn’t hold a candle to the Cricket, but it might be close to the Marauder. I guess I’ll have to get out the chronograph and set up some paper soon.
Before anybody gripes up about a .25 Marauder only being good for 8-12 full power shots with a decent spread depending on power setting. Mine isn’t stock. I bottled it with a flow through regulator (Flow check only. No regulation.) I also butchered the valve for better flow, and opened up the port switching the larger tube connection instead of an o-ring between the valve and the chamber it flows really well, and I have it tuned for 26-28 shots at 900-920-900 with a 25.39 grain Exact King. It takes out collared dove at 60-70 yards with authority. Yeah, BullBoss would probably smoke a stock .25 Marauder for shot count and/or power, but it might not have as much capacity as this modified one. I’ll just have to break out the ProChrono and some targets and see.
So far I have put three nine shot mags (and a couple dry fires) through the BullBoss without a subjective change in the sound of a pellet hitting steel, but the gun did arrive over filled if the gage is accurate. I do have one complaint. I think its heavier than the Kalibre, as heavy as the Marauder, and it doesn’t shift the weight as far rearward as I would like. On the other hand its cheaper than a Marauder, and far cheaper than a Cricket.
I’ll post some numbers and maybe some paper when I have had the time and the urge to do some proper testing.
For anybody who might be interested my most accurate air rifle is a single shot Chinese made BAM-50 in .22. It might shoot the five on a dime at fifty off the bench if I tether it to a bottle and take some warm up shots off paper. I have a regulator for it somewhere, but I hate to mess with it. The B-50 is a Chinese version copy of the Daystate Huntsman. The Kalibre was able to shoot 4 on a dime, but I always seemed to have one that stretched the pattern out to nickel or quarter size. Maybe one group in four was five on. I hope the guy who bought it is using it.