December 13, 2015 at 7:57 pm #241159
I have a hot rodded .257 AirForce Condor. I have a Lyman 257420 mold. Everyone who shoots .257 likes that round, but they don’t like the fact that the Lyman mold only comes in a 2 cavity configuration. Arsenal Molds is now making a four cavity 257420. In addition to faster casting, he rounds from the Arsenal mold make tighter groups than the ones I get from the Lyman mold. It is available in either aluminum or brass. I have the aluminum. http://arsenalmolds.com/product/257420-70-grain-rf/December 14, 2015 at 4:37 am #241196dougroundupParticipant
Right on unky D E V O!
Thanks for the good tip and contributing something to this thread.
I cant help but wonder if the manufacturer’s are noticing a significant rise in the sales and rise in popularity of this round due to air rifle enthusiasts. Surely this caliber and especially this particular cast bullet must be much more popular amoungst air riflemen compared to most firearm marksmen and general powder burning shooting crowd????? I dont hear much of the handloading guys making up many .257 wildcats… Maybe a few will load for the expensive 257 Weatherby round. I seem to recall a 257 Peters, and of course the 257 Ackley being probably the most popular wildcat … My guess is that most guys loading these cartridges likely arent casting lead bullets and more likely are using jacketed tailor made bullets from one of the regular reloading suppliers. Speer, Hornady, RCBS, ect… So who buys casting moulds for .257 and especially that oldskool classic 257420 by Ideal/Lyman? :2cents: :2cents:December 14, 2015 at 6:25 am #241199
I also have the DYOTAT hammer valve and spring on my AirForce Condor, a 32′ TJ barrel which was threaded for a Hatsan Air Stripper at the Muzzle. It has a Limbsaver in between the Air Stripper and a carbon fiber shroud I bedded using Brownell’s Acraglass. I put a Chinese made carbon fiber bottle on the gun which is rated up to 4350 PSI and run tethered through a Ninja Paintball regulated valvee to a 4500 PSI Great White tank from Joe Brancato. FX no limits scope rings as set up on my gun give me 138 MOA, I have a 4 x 16 50 Vortex Viper scope. I was able to hit a target at 547 yards this week using 90 grain Long Flat Nose rounds from Lead Bullets Technology. If you order a mold from LBT, specify that you are shooting air gun. Veral Smith made an experimental mold after talking with me about subsonic shooting. There is only a .1 rise from the body of the bullet to the bearing band, so there is almost no drag as the rounds fly.
It is raining here in Boulder City NV, so the dirt may not fly so well the next time I go shooting, but if it does I want to see if I can put rounds on a target at 800 meters.December 18, 2015 at 7:07 am #241480knifemakerParticipant
OH NO!!! another Have To Buy+the cost of hollowpointing. Yeah, That’s it! 🙂
KnifeDecember 19, 2015 at 6:47 am #241541rifle50Participantquote knifemaker:
I got the 4 cavity 257420 ARSENAL MOLD in AL…………SWEET……Make them twice as fast now…….WAS thinking of the 5 cavity but heard the stories from those that said hard to keep it running smooth all 5 with heat???
I have the 257388 mold ordered as he is still waiting for the tooling to make the point. He is bringing back that out of production single cavity IDEAL MOLD I believe? Will be 4 or 5 cavity, AL or Brass…..
Thanks to uncledevo, as he paid an UP FRONT premium for tooling, to get the Lyman and the Ideal molds back into manufacturing.
CarlDecember 21, 2015 at 5:58 pm #241725
I was going to suggest sleeving your barrel with Carbon Fiber. But its been suggested.
Also, since you shoot competition, try sorting your slugs to within .5 a grain.December 21, 2015 at 6:17 pm #241730quote uncledevo:
You sir are most awesome for that tidbit o’ info. I have them saved in my favorites and i just might buy one. I like the way their bullets look. Did they redo some of the measurement from the old 257420 to their newer 257420? The lines look sharper and deeper?
Or is it just my old eyes…….lol?December 22, 2015 at 2:35 am #241787
The old 257420 rounds fit in the cavities of the new mold. It’s as close to 100% accurate as it can be. If they’re good enough to make long range record holder Carl happy, I’m pretty sure you’ll be happy with them, too.December 27, 2015 at 5:08 pm #242260quote uncledevo:
Im sure they will make me happy……lol!
the question came up because i HEAR THEY ARE MORE ACCURATE than the old LYMANS. HOW IF THEY FIT 100% (not really asking YOU how, just thinking aloud). Something had to have changed ever so slightly for them to be better.
Yes, i know all about CARL and i have a record too………. :winkn:
The bullets lines just look sharper in the photo provided is all
THANKS!December 28, 2015 at 2:47 am #242283
Carl tells me that they are more consistent than the Lyman, making tighter groups. I bow to his expertise.December 28, 2015 at 3:19 am #242284quote uncledevo:
WOW…that’s some worshiping there Devo……..lol!
I’m gonna buy one……………..
Thanks again!January 5, 2016 at 1:59 pm #242877knifemakerParticipant
If he is going to make the 88 gr. Ideal Mold casting, there is NOOOOOO Way I can resist!!! 😯 😉
KnifeJanuary 5, 2016 at 2:15 pm #242880
Thanks for that. I’m gonna copy and paste that in a mail to him.January 6, 2016 at 12:00 am #242910
Regarding the Spitzer under development from Arsenal the tip profile has been the stalling point (no pun intended).
I exchanged emails with them today. I have a “Spitzer” mold from Lead Bullets Technology that has a 0.1100 flat tip (meplat).
I asked if re-– creating the Ideal/Lyman 80 gr 257388 with a flat tip that small would get things off the drawing board and into production. We shoot sub sonic so a small flat tip like that probably shouldn’t make too much difference. If that gets it off the dime I’m buying a four cavity aluminum mold with sprue holes between 0.1000 and 0.1100. I will let you know if that comes to pass, I’ve been waiting for this for some time, and want to move things along.
Cheers, jeers and other thoughts are all apprecited.January 6, 2016 at 10:35 am #242932dougroundupParticipantquote uncledevo:
I always thought that it would be really nice to have that Ideal 88gr like RJ Porter’s got, but all done up in a hollow point. Now that would be the cats meow! :whistle:
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