Author Topic: 250-22-WC (Read 6898 times))

rsterne · « **Reply #20 on:** August 03, 2019, 10:25:09 PM »

Michael, one thing I just noticed in your photo of the pellets you cast in Reply #4.... Many of the pellets appear to have hollows in the center of them indicating incomplete fill-out.... Have a good look at them, reject all the ones with obvious flaws, or even weigh them and select only the heaviest ones and try another group....

Bob

Insanity · « **Reply #21 on:** August 03, 2019, 10:43:53 PM »

I agree I see voids in the metpalt and in the skirt. The .22 NOE mold I have pretty well drops one cavity at 22.8 and the other at 23.2 I do a visual of them and i could weigh them but of the 400 so far that i weighed of the probably 4000 or more all were with in .5gn of each other. Ill be the first to admit I messed up big time with my first try at casting, I nearly ruined a new NOE mold...

I use Wayne52's methold turn the mold on its side bottom pour dipper to the sprue tip up and repeat. The third time I casted a lot of pellets I can say I probably have less rejects than the first successful batch. I know I have casted between 650-800°f and it seems that they all look good. So maybe do a few more casting sessions and see what you come up with.

miksatx · « **Reply #22 on:** August 03, 2019, 11:19:50 PM »

Thanks Bob and Matt I'll give what I have left a good look over an catch a weight on them filled out ones.

miksatx · « **Reply #23 on:** August 03, 2019, 11:22:13 PM »

Quote from: KnifeMaker on August 03, 2019, 09:54:26 PM

Take two screwdrivers and pry th etop hat out of the talon. Place rubber washers under it, one at a time to lower the velocity. It is the poor mans regulator of AF guns.

Put top hat back in and with your fingers push in as far as you can.

Now, push the breach forward but not far enough to cock it. Let it go under spring pressure. Lightly first time. Heaver pressure each time after.
After apx. four goes, cock and shoot. The top hat is now seated. Shoot and have fun.

Knife

Knife I'll give that a try thanks!

miksatx · « **Reply #24 on:** August 04, 2019, 10:03:46 AM »

Quote from: Mod90 on August 03, 2019, 07:12:43 PM

slow is the way to go. But I'm inclined to think that they would performance better at velocities even lower than 700 fps. I'm thinking 500 fps might be a good place to start and work upwards from there.

Mod90 didn't mean to leave you out. If anyone stateside has a .25 that shoots 500 like Mod90 suggest I'd be willing to send them pellets.

miksatx · « **Reply #25 on:** August 05, 2019, 11:14:46 AM »

I picked through what wadcutters I had left came up with 8 21.8gn. Got my p15 down to 730 and same old same old. 5 shots on paper no idea where the other 3 went.

Mod90 · « **Reply #26 on:** August 06, 2019, 08:31:11 PM »

if your current setup can only go as low as 730 fps, maybe using a little lower fill pressure might get them moving slower.

Insanity · « **Reply #27 on:** August 07, 2019, 09:53:11 PM »

Got the batch you sent me today and today I got my mrod shooting so I will test them soon.

Insanity · « **Reply #28 on:** August 08, 2019, 08:15:53 PM »

A little later I will have pictures and some crony data. But at 1028 fps making 51~fpe they dont seem to be doing all that bad out of my mrod. It's not stacking them like the 34gn JSBs but I think if I turned it down it just might. So I think it's your barrel for sure.

Insanity · « **Reply #29 on:** August 08, 2019, 09:42:28 PM »

Here is the groups and crony data, random picks to.

Wayne52 · « **Reply #30 on:** August 10, 2019, 02:22:25 PM »

Matt I was out with my DAR25 today and it's really loving the 250-27-RF 26 grainers I've been casting, I had too much fun with it today shooting a can at 60 yards, I also shot a Ghog and chipper with it too.

Insanity · « **Reply #31 on:** August 10, 2019, 02:36:59 PM »

Quote from: Wayne52 on August 10, 2019, 02:22:25 PM

Matt I was out with my DAR25 today and it's really loving the 250-27-RF 26 grainers I've been casting, I had too much fun with it today shooting a can at 60 yards, I also shot a Ghog and chipper with it too.

Being that Matt had this mrod tuned for 34gn jsb I am waiting to see if NOE is going to release the 250-34-rf soon. Even at 1000fps these wadcutters looked like they may be promising also for plinking.

Wayne52 · « **Reply #32 on:** August 28, 2019, 06:11:38 AM »

I tested them yesterday at velocities ranging from 710-750fps and they perform pretty darned good from my Xisico Sentry .25 (prototype). I had turned it down considerably from where it was to begin with and I'll try turning it down some more the next time I go out with it. I'm thinking that starting out at a fill pressure of about 2.6-2.7Kpsi that it will do even better yet with the gun turned down further yet. I did manage to get a chipmunk and red squirrel with it yesterday with the wad cutters and wow what a smack it delivered with devastating results as well.

Wayne52 · « **Reply #33 on:** August 29, 2019, 05:45:21 AM »

Well I turned my Senty25 down as far as it will go and did a chrony string starting at a 2K fill

1. 700.5fps 23.65fpe 8. 726.3fps 25.42fpe I'm going to try it today at this setting to see how it shoots the wad cutters, I did notice the last time out that at about 700fps
2. 703.1fps 23.82fpe 9. 723.8fps 25.21fpe it was hitting very consecutive for about three shots but then the velocity rose very fast after that but that was at a 3K fill too.
3. 704.5fps 23.92fpe 10. 761.4fps 27.94fpe This gun is the the HC which is the high capacity tube and I'm sure that I'll be able to get a heck of a lot more shots from it but
4. 708.0fps 24.15fpe 11. 723.3fps 25.21fpe I think this will be good for testing purposes of the WC's. I would have done a longer chrony string however I'm getting low on
5. 707.6fps 24.13fpe 12. 724.5fps 25.29fpe pellets right now and want enough to take out in the field with me today.
6. 711.2fps 24.38fpe 13. 746.7fps 27.37fpe
7. 717.9fps 24.83fpe 14. 753.7fps 27.37fpe

Wayne52 · « **Reply #34 on:** August 29, 2019, 06:43:08 AM »

I'll try the next heavier pin the next time I cast them, it will be better I think and maybe keep the velocity down with a higher pressure fill than 2K, I'd rather start at a 2.5K fill if possible with the gun.

Insanity · « **Reply #35 on:** August 29, 2019, 06:56:19 AM »

I may have a mold in my possession here soon. So I will be waiting to see how different pins work out for you.

miksatx · « **Reply #36 on:** August 29, 2019, 11:03:47 AM »

Quote from: Wayne52 on August 29, 2019, 06:43:08 AM

I'll try the next heavier pin the next time I cast them, it will be better I think and maybe keep the velocity down with a higher pressure fill than 2K, I'd rather start at a 2.5K fill if possible with the gun.

That's probably a good idea going with a shallower base pin. Don't know why I didn't try that lol. I have cut down several of my .25 6 ring slugs to the top 3 rings leaving a kind of boat tail that shot very accurately.

Wayne52 · « **Reply #37 on:** August 31, 2019, 03:39:58 AM »

I just switched over to the next size up pins and will be casting within a half hour probably, I'll do a chrony test before I head to the state land with my Sentry to test them.

Firewalker · « **Reply #38 on:** March 02, 2021, 10:56:10 PM »

I got my 250-22-WC mold today, I didn't know it had 4 sets of pins! My PB, HP mold only came with 1 set so that was a nice surprise! I will be casting all weights tomorrow and will hopefully shoot them next week after my long stretch at work.

I didn't see any more about this mold after Wayne cast his last batch last Aug. and was wondering if the accuracy issue had been resolved?

Insanity · « **Reply #39 on:** March 03, 2021, 11:59:07 AM »

All pellet molds come with 4 sets of pins. You can very the weight with them and typically speaking the flat base pin isnt very useful.

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250-22-WC

Author Topic: 250-22-WC (Read 6898 times))