Diana Diana mod. 250 (two fifty) .177 cal. air rifle

I've just ordered a Diana mood. two fifty air rifle in .177 cal., I understand that it is one of the Diana models that were designed in Germany but built in China, so I'm expecting to receive an heirloom quality air rifle, I am however expecting some measure of quality from Diana's quality control standards.
So, my question is directed to any member here who might have any experience owning or shooting one who might share their thoughts about the rifle and it's performance ?
 
I have the .22 version.
Short story: it is a cheap gun so have your way with it.
Long story:
I shoot relatively lightweight pellets, so the shot cycle was harsh and slammy. I took the end cap off (use some kind of spring compressor jig or lean a lot of weight on the receiver when you drive that last pin out to hold the end cap and spring in), and removed the "top hat" at the forward end of the piston. That helped the slam. Then I removed a couple coils of spring and that helped the harsh shot cycle. Then I added back different top hats, as I had a bunch of them from other cheapo springers, kinda like the D250. It shot better but I was still having trouble getting consistently good groups (for me, say 1cm at 10m). So next I hacksawed ~8cm off the end of the barrel, manually twirled a drill bit at the end of the barrel to make a "crown", and filed a little ramp at the end to align the plastic front sight that I boiled off the cut barrel end. The 2-part linkage for cocking the barrel and compressing the spring makes it still easy to cock even though it has a shorty barrel; that is a good design! At any rate, in the end I have a nicer shooting carbine. Certainly it was a no-loss learning adventure. Oh, and I also hacked an inch off the stock butt to make it shorter. Some toys were made to be played with until they are either better, or broken.
 
So answer me this, MidWayUSA says it's a springer, Pyramyd Air says it's a gas piston rifle, AOA also says it's a coil spring power plant, it it or isn't it ?

Friday 10/18/24,
Correction, I was in contact with Diana through Blue Line Global.US/ Diana's rep in the USA, they confirmed that it is in fact a Nitro Piston Powered air rifle.
 
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I don’t have one, Moe.
Word on the street is it’s solid, budget friendly, has a long 4.3lb trigger pull and is great for 10m. Sounds like a good piece to start and have fun with. Perhaps not heirloom quality, but an opportunity to see how deep you want to go in that direction.
Good luck and have fun. R
Thanks Rondo, I received mine from MidWayuSA on Tuesday, fit and finish was great, the stock is stained walnut but the finish is flat, I would have preferred a sheen but it's ok, there was some confusion about the power source (nitro piston or springer), I have four coil spring air rifles and four gas piston air rifles, I've been at this air gun shooting for quite a while and know the difference, from the first shot I thought it was a gas piston rifle and Diana through Blue Line Global confirmed it.
I have some high end air rifles so I'm not easily impressed by budget priced air rifles, but this Diana two fifty impressed me, the trigger has a long first stage but the let off is smooth and crisp right out of the box, the scope wasn't the usual junk supplied with most low end bundle package, it is a decent quality, all metal, very clear, and has a zero return feature.
Accuracy is great, I was stacking pellets at 10 meters and getting clusters at 25 meters, and it grouped about 2" at 50 yds. just 6" low.
I spent all afternoon shooting it on Wed. afternoon, it performed way above it's price point, my only complaint is the cocking force needed to load it, I'd guess at about 40 pounds, but it is a magnum class velocity rifle, if it continues to perform as well as it's doing now it's a keeper.
 
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I have the .22 version.
Short story: it is a cheap gun so have your way with it.
Long story:
I shoot relatively lightweight pellets, so the shot cycle was harsh and slammy. I took the end cap off (use some kind of spring compressor jig or lean a lot of weight on the receiver when you drive that last pin out to hold the end cap and spring in), and removed the "top hat" at the forward end of the piston. That helped the slam. Then I removed a couple coils of spring and that helped the harsh shot cycle. Then I added back different top hats, as I had a bunch of them from other cheapo springers, kinda like the D250. It shot better but I was still having trouble getting consistently good groups (for me, say 1cm at 10m). So next I hacksawed ~8cm off the end of the barrel, manually twirled a drill bit at the end of the barrel to make a "crown", and filed a little ramp at the end to align the plastic front sight that I boiled off the cut barrel end. The 2-part linkage for cocking the barrel and compressing the spring makes it still easy to cock even though it has a shorty barrel; that is a good design! At any rate, in the end I have a nicer shooting carbine. Certainly it was a no-loss learning adventure. Oh, and I also hacked an inch off the stock butt to make it shorter. Some toys were made to be played with until they are either better, or broken.
It might be cheap as in inexpensive, but it's much better quality than it's price point suggests, only time will tell, but as of now in my opinion it's a hell of a deal and a real keeper.
 
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A nitro piston is new; the 250 I got is definitely a coil spring. I have a couple extra coils to prove it :)
Moe, you mentioned the cocking force, how many pivot points do you see in the linkage? There is one at the barrel and one inside the receiver where it meets the piston, but is there an extra "elbow" linkage a couple inches from the barrel? I ask because mine has that extra link and it is easy to cock. I wonder if they got rid of that when they changed to nitro piston.
Best,
 
A nitro piston is new; the 250 I got is definitely a coil spring. I have a couple extra coils to prove it :)
Moe, you mentioned the cocking force, how many pivot points do you see in the linkage? There is one at the barrel and one inside the receiver where it meets the piston, but is there an extra "elbow" linkage a couple inches from the barrel? I ask because mine has that extra link and it is easy to cock. I wonder if they got rid of that when they changed to nitro piston.
Best,
There's a difference between your model 250 and a model two fifty, the mod.250 is a vintage rifle made in Germany, the Mod. two forty, two fifty, and two sixty are made in China for Diana, they are meant to be inexpensive entry level air rifles, they are easily identified by the model markings, German made rifles marked with numbers, the Chinese made rifle are have the numbers spelled out, 250 vs two fifty in lower case letters, the Chinese made rifles are Nitro Piston powered.
 
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The newer gas piston rifles are the $h!t. I have been impressed. I've always shot coil springs and thought that was the only way to get it done. I was wrong. The gas piston rifles are great!

I think the two fifty came both ways. I have seen spring guns advertised as well as "gas springs". At least I think I have.

That's probably where the gas ram conversions for the D34 EMS went. They are stuffing them in the "two fifty".
 
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Oh Great, and just when I thought I had it all figured out, but you know what, I really don't care at this point, I have a stable of Weirauch rifles in .177, .20, and .22 cal., and several other medium priced break barrel rifles, and a couple of budget priced air rifles, I like to play around with the cheapies, do trigger jobs and tweak them to get the best out of their potential.
However, I am fussy about what I purchase, I like wood stocks and finely blued metal, no plastic stocks or coated metal, and very few plastic parts, I'll accept the plastic true glow adj. sights, and the Diana two fifty checked all of those boxes, if figured the basic rifle might be worth it, I'd rework a horrible trigger, replace the cheap junk bundle scope with a decent lower end Hawke or UTG scope and go from there.
So, when I received the two fifty I was excited to find out what I had purchased for $99.99 and how much work I would have to put into it to make it a fun shooter, the unboxing went well, I was pleased with the rifles fit and finish, and the Diana marked scope looked to be of much better quality than I expected, I inspected the rifle carefully cleaned the bore (it was loaded with factory anti-rust protectant) and mounted the scope, the following day I took it to the range accompanied by my adult son who is heavy into high end PCP rifles, he was shooting a new PCP .30 cal. rifle, I was sighting in my new Diana two fifty and testing some pellets to see what the rifle liked.
I wasn't expecting to be impressed upon the first firing, but it was far from what I was prepared for, the trigger was not horrible at all, in fact it was very nice for first stage travel and crisp, smooth let off, and the scope though a fixed 4 power was exceptionally clear, and the it is mostly all metal and the turrets functioned wonderfully, and have a return to zero function, cocking it was a bit heavy but not abnormally so for a magnum level air rifle.
Sighting it in, first at 10 meters took only three adjustments and about 10 shots, the rifle shot best with midweight H&N FTT and Benjamin single die pellets, at 10 yds. it stacked pellets one on top of the other, at 25 yds, it gave me clusters (all shots touching), a few shots in various targets of opportunity on the 50 yd. berm showed that the two fifty had exceptional accuracy potential.
Over all, in my opinion the Diana two fifty is a keeper, for an inexpensive Chinese made air rifle it's performance is way above it's price point even at it's $190.00 MSR., my adult son who is used to shooting his $2,000.00 PCP rifles was so impressed with my Diana two fifty when he shot it on that range day that he ordered one for himself as soon as he got home.
So, to all the nay sayers who would bad mouth this cheap little Chinese rifle, I say actually shoot one and get back to me.
 
"I was pleased with"

That's all that matters.. 👍

Your not pleasing me , him or some guy down the street.. it's if your pleased in the end .

Enjoy.😉
Thank you, you're right of course, we all choose the path that we think is best for ourselves, what ever path we choose and what ever decision we make to satisfy that quest is our own and it only has to serve our own needs.
And yes, I am pleased with the Diana two fifty, but if I had to put an emotion on what I think about it, before pleased would be "Surprised", I fully expected a run of the mill budget priced air rifle of mediocre quality and so so performance, what I received is a much higher quality and better performing air rifle than I expected, so yes, I am pleased.
 
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That's a great report! Thank you!

The Diana rifles are great. I love my D34. The two fifty sounds like a sweet deal.

The high end rifles are really works of art but a budget shooter that will hit what you point it at is what butters the noodles.

As the years go by I'm giving up some of my bias against Tru glo sights, plastic trigger guards (and triggers), synthetic stocks and gas rams. Not too long ago I wouldn't consider a rifle with any of those features. My favorite shooter these days has ALL OF THEM. And I'm not ashamed to admit I like them all.

I honestly like my budget shooter better than my high end rifles in (almost) every respect. I shoot them more, worry about them less and can hit just as many targets. Honestly the difference in accuracy is very little unless you are shooting for the numbers.

I might just have to get a Dianese two fifty and name her Ming Lu Schmidt. She can hang with my new Spanish rifle Maria Conchita Alvarez and the two Turkish girls that live in the guest house.
 
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