my new haley 257 (pics added)
So my new haley 257 came in yesterday. All i can say is awsome. It is making 242fpe off a 2700psi fill with 5the shots from 200-242 fpe thats with 87the grn bullets from my rcbs mold. Also its very accurate. My 50yd groups are .252in .i got pics of this but i got to figure out how to get them on here from my phone. All and all im very happy with it. More to come.
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Now, that makes sense…
I did make a mistake in my twist rate. It is 1in14 twist. Sorry for the misleading info
On another note:
Honestly though, the 257 and 308’s are really my preferred direction for airguns (love 45’s too….BUT?). Its a personal thing. I like the thought of higher velocities and higher BC’s. I will say this TODAy just in case it becomes popular down the line, i would love a 264 cal airgun that could shoot pretty fast with cast bullets having BC’s in the .500 range (ohh la la). It’s got seriously high BC bullets. I love the thought of the 257 and 264 and 308 and possibly a 7mm or .284 cal. The 7mm is another high BC cal.
But enough of my blabbering 😆
I would like to see airguns which could shoot high ballistic coeffient bullets but in relatively large caliber. Not too fast because it eats efficiency; one could not get the best energy levels by shooting speed o sound.
But, there’s nothing wrong in caliber 284 or 308. Some high BC bullets in 200 grain level or even heavier bullets in 308 are what I would like to see in airguns. But I believe it presupposes little faster twist barrels, than what has been used. That 22:1 twist sounds like awfull slow (and isn’t 308 corsair somewhat 20:1???)… But if it works, it works (and 87 grains is not overly light).
Of course, I’m not completely sure about twist rates and about that would fast twist barrels work in airguns. But it should be tested. For example, guys who shoot subsonic powderburners, in Whisper family. Take caliber .510 Whisper for example… They shoot + 700 grain .50 caliber bullets from barrels which have 10:1 twist (one turn in 10 inches). And 308 caliber +200 grain bullets require twist like 1:9 or 1:10 or otherwise holes in targets tend to look like keyholes (in bowderburners at least).
Greenhill formula should work in airguns too!
Have you guys been test shooting very high BC bullets from those slow twist barrels of your airguns??? Is keyholing a problem with airguns??? I mean, there are mold for heavy bullets in Midway USA for example. Over 200 grains in 308 and at least 120 grains (high BC) bullet in caliber .257
Is anyone besides me interested in this??? At least Gary Barnes made a 308 or 32 rifle which shot accurately bullets in 200 grain level. Barnes didn’t tell the twist rate though. Some of you might know the rifle and those tests.
I need to add one thing… I don’t mean that one should use as fast twist barrels as possible. Bcause: No faster twist than is requited should be used. Too fast twist is detrimental to accuracy as well as too slow. Benchrest crowd knows it the best. Never try to overstibilize the bullet with too fast twist, use only the twist rate which is needed…..
i for one would like to see the internals, particularly the bore and the valving.
Jerry you hit it right on the head.
To me that group is all about protecting commercial interests.
After trying to explain why spizter cast bullets should not be used on big game and why a hunter who does his own public land hunts by doing hours of scouting and learning the area has a leg up in skills over the high fence guided hunter, and the reception that resulted on the fourm you folks inhabit, I can see why no one dared say a word against you guys.
If I had practiced all year with a 45 bore and the resulting dynamics of that bore compared to a 25, and yes I do shoot both long range, driven several huntdred miles for a one day match, you can bet you sweet ass I would have spoken up.
You could have still let the 25 shoot, and let the guys who played by the rules have their competition and accomplished the same thing and looked far more professional.
And yes that rifle is a long step forward in air gun design and function.
Regards,
Roachcreek
That’s typical, nobody wanted to look like the asshole so group dynamics let the rules change on the fly.
On the plus side, a neat gun got some PR.
Every shooter in the compition were gathered and asked to vote whether or not to allow him to shoot this particular rifle. I didn’t see one person vote no or shake their head no in disapproval. I’m sure that this year the rules will be better spelled out and communicated. As for last year, what’s done is done. The Guy shot well.
Cody
Nice for the 25 shooter, but being a life long rifle competitor and match organiser, to me, that simple smells of chronyism.
You have rules for a reason, if you wish him to shoot you should have let him in a class of his own or just to see how he did, no disagreement on that, but you should have let the .30 and above shooters take first and on down the line.
Then you have all year to discuss what rules you wish to change.
And yes it is your guys match, so if you want to bend rules it is your option, I am only speaking to how professionals would do it.
Regards,
Roaahccreek
max caliber is 25, this is .257. lotta difference .007 makes…
The bigbore class starts @ .308. There is also a10 lbs. Weight limit that he was over with the laminated stock and bipod. We let him shoot it because we were all there to have fun and meet new people.
Backyard,
have to admit, i’m not very good with the search function on any of these forums. A lot of times, post are created within someone else post. That’s what makes some of these searches pretty difficult. My pics of the older haley i have was created within someone else post. And i have no idea of what the OT was about….lol. Seriously!
RS, i too love the 40 cal for airguns. I would take it over the 45 if it were my choice. Wanted to do it too my Dragon Slayer. A 200-300 gr bullet seems to plenty for big game that most folks have the chance to shoot. Unless someone like RC is hunting Elk (45 cal shooting 400 grs is much better than the 40 cal in this case), the 40 would be plenty. That’s why i so wish i could make my own airguns. I would build a whole line of NON STANDARD big/small bore calibers (243-257-264-284-375-40 cal)
RC, sure wish Dan would do some 308 testing with STANDARD weight bullets in that gun. And shorter barrels to. That 36″ pipe is friggen ridiculously long and makes that gun super heavy. I would love to see some numbers from a 150 gr bullet from a 28″ pipe at all fill pressures and power settings.
RJ, NOW YOUR JUST LYING!…..lol
That is impressive, 270242fpe?
Thats around what 10,000 grains at 1100 fps.
COuld probally take down 5elephants with one bullet.
😆
I am waiting for Mcvey to make a upper for the Ranger 45 in 30 caliber.
In testing it is doing 1230/1190/1130 with a 68 grain bullet from a 36 inch barrel on low power with a 3000 PSI fill, so it should have plenty of power to push the 150 or so bullets on high power I am thinking.
My other option is to just sell the thing and put a down payment on a fishing boat. 😆
Regards,
Roachcreek
I also have a haley 308capable of 305fpe but i shoot from a 3000psi fill making 270242fpe fpe with a 155grn hollowpoint that i cast from cedrics mold
I just read all the old posts on jh guns. Dangggg. Ced I couldn’t find your post though…help?
Im interested to what comes back from jack as I have one of his older guns with him right now.
And its a 308. 😆
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Thats what happens when i assume. So far at 100yds im getting half inch groups to 5/8 inch groups with unsized bullets so i cant wait to see how it does with sized ones