Underwood 220gr Hardcast (New Load)

Intercooler · November 18 2013 07:28:55 PM MST

I waited for them and picked them up with the .357's this week. They should test out the same but with Power Pistol (I think).

The_Shadow · November 18 2013 07:31:27 PM MST

Those should be interesting if they are in the 1200 fps range like the other ones with 800X

Yondering · November 19 2013 10:46:25 AM MST

I can't make myself believe those rounds would meet any safe pressure spec, if they're loaded to 1200 fps with Power Pistol. No way. I blew out a case at 1100 fps with the same bullet weight, but a better bullet that uses less case capacity. Blue Dot, AA9, or 800X, yes, but not Power Pistol.

The_Shadow · November 19 2013 02:00:05 PM MST

Yondering, I understand exactly what you are saying. If Intercooler sends one for pull-down documentation, we will see what is being used...

I was amazed ${$default_shocked_smiley}$ at the amount of Power Pistol that Buffalo Bore stuffed under the Barnes 155gr TAC-XP yielding near 1500 fps.

Intercooler · November 19 2013 02:26:37 PM MST

It might not be Power Pistol. We shall see real soon!

Intercooler · November 23 2013 01:16:29 PM MST

These ran flawlessly out of the Limited Pro today.

Limited Pro 4.75" 1237, 1231, 1250. Average = 1239.33 FPS/ 750 LBS

I left the old 220 load (800-X/1211 FPS) in the sheet for reference. Maybe I should move it to the discontinued tab? I put Power Pistol for this one until we confirm it is/isn't. It might be LongShot but we shall see soon enough!

Intercooler · November 23 2013 04:49:22 PM MST

Let me get a few photos and measurements on this brass.

Intercooler · November 23 2013 06:18:57 PM MST

The primers for sure look flattened

Two pieces were .432" and this one was the worst at .437" where the ramp bulge is

The_Shadow · November 23 2013 07:30:51 PM MST

${$default_grin_smiley}$ That's gonna leave a mark! ${$default_grin_smiley}$
Not good for the brass! ${$default_sad_smiley}$

tommac919 · November 24 2013 07:05:12 AM MST

that one goes in the scrap heap! ${$default_shocked_smiley}$

Intercooler · November 24 2013 08:06:02 AM MST

You might be correct on that one. I wonder how the Glocks are going to fair with this load? These may be a one and done.

blastfact · November 27 2013 08:17:09 PM MST

Quote from: Intercooler on November 24 2013 08:06:02 AM MST
You might be correct on that one. I wonder how the Glocks are going to fair with this load? These may be a one and done.

I figure my LW 5.15" barrel and chamber would do fine with that load. Lord knows I've blown the wings off Angles with XTP's from 155gn to 200gn. And the good Lord knows I've went nuke with the worthless 135gn Noslers. Fun to shoot. But a 125gn full house .357 mag shines against that worthless 135gn bullet in 10mm.

I am really disappointed to see that hogs belly in the brass. ${$default_sad_smiley}$ I linked up one of my Co-Workers that shoots a EAA Match something or other Witness 10mm. A really sweat pistol. And he fell out looking at that bulge. He could not believe his eyes. He has sprung up his Witness. And loves shooting bad ass 155 and 180gn loads out of it.

Would a Witness Hunter produce this sorry result?

4949shooter · November 28 2013 04:29:46 AM MST

blastfact, it is good to see you here.

How is the support on that Lonewolf 5.15" barrel? I was thinking of picking one up.

Intercooler · November 28 2013 05:07:49 AM MST

I will put one through my Hunter next time out because I'm curious. It was only this one piece out of the three which showed the feed ramp bulge.

4949shooter · November 28 2013 06:21:39 AM MST

We need some pics of those Witness barrels for chamber support!