.177 over 50fpe possible?? exp mods i need help! Hatsan/Fx/others
- Thread starter Slots1Up
- Start date
Several here have given what seems like very good advice after following the path you are starting. What you seem to be seeking is going to be hard to reach. Others have given advice that I don't value. Specifically, avoiding the Hatsan brand. If you like a Hatsan model then get it. They can be very good rifles. Some are very happy with them, others say they would never buy another. I have several and they have all been good value.
Upvote 0
G
Guest
Guest
Worst pcp I ever owned was hatsan bullboss.. Took less than 200shots and anti bounce mechanism was gone. No sparepart support at all.. But on other hand I would get old singleshot hatsan at44 asap if there was one for cheap.. Would be good project gun. Quality wise hatsan are not even on level of snowpeak thats not really known for top notch quality with exception hatsans cost 3-4x more. If I would want hot 177 I would surely pick AF condor.
Upvote 0
I'll second that as well. This is the reason my neutronstar is detuned. Debouce tearing up the receiver, and galling the hammer. I riveted the forks on mine and turned the power down considerably. Still, the design, quality, and machine work is fairly apalling. But I do have it shooting extremely well. With a super flat and fairly long shot curve. It still bugs me that the trigger assembly housing is thin plastic... Doesn't exactly lend to a clean/crisp trigher break
Upvote 0
If your shooting is as you state 40 yards or less in your backyard ? A .177 caliber will be deadly on squirrel size critters even at 20 fpe which is a 10.5 grain heavy pellet in around 910 fps there about. AND WILL SHOOT RIGHT THREW THEM TOO !!!! Ever a rabbit shot with 20 fpe .177 will more times than not will be a pass threw !
You start talking 30-40 fpe out of a .177 it only has a a few realistic applications .... That of shooting HEAVY pellets or Slugs at extended ranges, OR hunting bigger game where penetration is wanted with correct shot placement. There is POOR accuracy at any weight with air guns much above 1050 or so fps ( barrel & projectile specific ) so having a 1300 fps .177 is just not a good idea what so ever !!
Wanting Big power in a small caliber just because local law places a restriction on caliber is kinda silly ... there is no reason for it inside 40 yards for backyard plinking ... IMO
You start talking 30-40 fpe out of a .177 it only has a a few realistic applications .... That of shooting HEAVY pellets or Slugs at extended ranges, OR hunting bigger game where penetration is wanted with correct shot placement. There is POOR accuracy at any weight with air guns much above 1050 or so fps ( barrel & projectile specific ) so having a 1300 fps .177 is just not a good idea what so ever !!
Wanting Big power in a small caliber just because local law places a restriction on caliber is kinda silly ... there is no reason for it inside 40 yards for backyard plinking ... IMO
Upvote 0
G
Guest
Guest
Yep agreed. Alltho laws are exactly the reason why I have my 224cal. I can shoot it on my own yard. Anything above small caliber of 250 is considered lisenced firearm in here. So because of this I can shoot 0.205bc 51gr spitzers at 1000fps on my own yard but since there is neighbours closer than 150meters I cant shoot 22lr. Stupid yep but atleast it was caliber limit instead of power lol.
Upvote 0
My gun shoots 15gr slugs at a shade under 23ft lb, its a hunting rifle out to 70m for rabbits.
For the distance you are talking about 50 ft lb is a joke...
For the distance you are talking about 50 ft lb is a joke...
Upvote 0
good it my project not yours, and my reasons are my reason, just go whit the flow its not for anythong more than an idea project.
and thanks everyone for your inputs
On another note this guy shoting a hasan nova .177 whit slugs 20gn 980fps and 21 gn 937 whit home tuning - im pretty sure whit a good tuning and pro made mods like bough cnc milled stuff - can it be done whit a 24gn slug if it fit the barrel good? For me alsow i dont like the nova much i rather build on a diffrent base whit alittle more fetures and a bigger magazine preferd.
https://youtu.be/amoiX3IAb1g?t=426
Upvote 0
Yep, it should be no issue. I'm positive my nova star is well capable of this, too. But I refrained from power modding mine. Reason #1 being the self-destructive de-bounce mechanism. Reason #2 I did not want to alter the port design from multiple to single. Being that I'm almost %100 certain it would result in poor ES. Which would basically render the gun useless to me. But in all fairness, a poor ES is going to matter very little at 20 yards.
The valve house has many outlets instead of a single direct port to the transfer/barrel port. I am pretty certain this design creates turbulence and is responsible for creating a very long and flat power curve for an unregulated gun. Boring a large single port that is in line with the barrel port, and filling all the others should up power considerably at the cost I stated.
The nova star does have a bigger magazine. But be warned the construction and fit/finish/machining/trigger. Most of the gun leaves a LOT to be desired. Did I mention the debounce mechanism that eats the receiver and hammer? lol
They can be made somewhat nice if you are patient, and at least kind of know what you're doing.... and have some luck.... But @ nearly 900 MSRP, you'd have a real hard time getting me to fork out $300 for one
The valve house has many outlets instead of a single direct port to the transfer/barrel port. I am pretty certain this design creates turbulence and is responsible for creating a very long and flat power curve for an unregulated gun. Boring a large single port that is in line with the barrel port, and filling all the others should up power considerably at the cost I stated.
The nova star does have a bigger magazine. But be warned the construction and fit/finish/machining/trigger. Most of the gun leaves a LOT to be desired. Did I mention the debounce mechanism that eats the receiver and hammer? lol
They can be made somewhat nice if you are patient, and at least kind of know what you're doing.... and have some luck.... But @ nearly 900 MSRP, you'd have a real hard time getting me to fork out $300 for one
Upvote 0
Can this project be done? Absolutely. Is it easy? No, not really. Just about everyone I’ve seen who has accomplished something close to this power in this small of a caliber, is a very experienced airgunner or tuner. Taking things to the max of the envelope is not cheap either. Good luck, you’ll need it.
Upvote 0
long gun thanks for the pictures and post, and yea myself not keen on building on the nova, but maby i could start there as others allreaddy came close , then remod a better gun when i get more expirence + ppl that wnat to help me + maby cnc mill parts to my needs so i can buy it from them. i know the Fx line have some powers mods allready from factory and others have made bigger pleunum air chambers.
Upvote 0
Indeed. The fx .177 seem to have very little R&D into them, a lot of people have had accuracy issues with them. There are some fx models that would be good candidates for making power. With a custom barrel to get decent accuracy it would probably make sense. But if I wanted a ton of power in 177 I would hunt down a jsar raptor or an airforce
Upvote 0
G
Guest
Guest
Its not really hard or expensive as long as you choose your platform well. Fx, daystate etc ideally dont really make good longrange platform due too short feeding hole for really long bullets for any long range cal 172, 224, 257 actually you could fit some 172cals there but as far as 224 & 257 no. Also the fact you dont really want to make any of high power bullet shooters regulated unless you want to carry huge tank combined with even more massive plenum. You just need to be ok with alot fewer shots, bullet shooters aint really your avarage 100shot mildly powered pellet pushers. 257texan for example gets only few steady shots if you shoot longrange suitable bullets 80gr++. I built my 224cal out from Spa M10 that costs less than 300dollars and barrel from LW was bit over 100. So you can defo do things like this cheap. Its 112FPE rig atm with total cost being absolutely alot less than any cheap bottom end PCP.
Upvote 0
The Hatsan BT65 is capable . If you can get your hands on an older unmolested one from the used market jump on it. The problem is to get the right twist rate in a barrel for the longest bullet that will fit the magazine . The 17.7:1 twist they use might be good for bullets up to 20 grain but they will have to be moving real fast. If you do get the BT65 , you can get rid of your gym membership . It is one heavy rifle
Upvote 0
thanks
do u have any info on this gun or forum post or video. i found a used wood Hatsan Model BT65 from a gunshop so it sould be serviced.
any info would be great thanks-
Alsow i having issues locating the guns i want there months of wait on the few i wanted to get
Upvote 0
G
Guest
Guest
WELL!!!
You might be right.That formula is [v(fps)*v(fps)*m(grains)]/450240 = foot pounds energy
Upvote 0
Find an original Career 707 ( 3 power setting, high, higher and highest) and most had "golden" barrels.
John
John
Upvote 0