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Old 09-21-2012, 14:55   #1
deadandgone
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Underwood 220 gr hardcast

I'd been waiting for this....although I'm not sure I thought I would see a 220 grain....velocity seems outstanding....hmmmm....
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Old 09-21-2012, 16:47   #2
harrygunner
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I was hoping for and suggested a 200gr WFNGC. The reasons being, one still gets good penetration, but more importantly, allows a standard Glock barrel rifling to stabilize the bullet.

Too heavy and this happens ( hickok45's video) :
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Old 09-26-2012, 20:46   #3
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Quote:
Originally Posted by harrygunner View Post
I was hoping for and suggested a 200gr WFNGC. The reasons being, one still gets good penetration, but more importantly, allows a standard Glock barrel rifling to stabilize the bullet.

Too heavy and this happens ( hickok45's video) : Glock 20 with heavy cast bullets - YouTube
Great video as usual from Hickok45.

However, someone needs to tell him that there's a big difference between hot 10mm and hot 44mag.
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Old 09-26-2012, 20:47   #4
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Quote:
Originally Posted by harrygunner View Post
I was hoping for and suggested a 200gr WFNGC. The reasons being, one still gets good penetration, but more importantly, allows a standard Glock barrel rifling to stabilize the bullet.
Same here. That said, I'm pretty impressed with the 200gr TMJ Speer rounds. They seem to hold together very well.
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Old 09-21-2012, 23:56   #5
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The standard Glock rifling is fine for heavy bullets. It's the poor fit and crappy tolerances of that 230gr bullet that Double Tap uses that's the problem. The same is true for any cast bullet, they just usually aren't that bad.

Last edited by Yondering; 09-21-2012 at 23:56..
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Old 09-22-2012, 12:49   #6
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Gosh darn it! Now I've gotta save up for some 220 hardcast. Oh well i guess the 200 xtps, 135 noslers, and 165 gold dots will tide me over for now lol.

Last edited by Ken52789; 09-22-2012 at 12:50..
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Old 09-24-2012, 20:25   #7
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This is exciting ammo for the hunting 10mm enthusiasts.

The video is a good ole boy evaluation but cinder blocks are just too tough to cook. Even slow cooking doesn't tenderize them!
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Old 09-26-2012, 13:04   #8
edhead35
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Using a G20, KKM 6" barrel, would the 220gr HC Underwood require more than the stock spring?

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Old 09-26-2012, 16:45   #9
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Originally Posted by edhead35 View Post
Using a G20, KKM 6" barrel, would the 220gr HC Underwood require more than the stock spring?

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Require--no. Might eject better.
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Old 09-26-2012, 17:02   #10
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What weight spring should I use with this ammo?
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Old 09-27-2012, 10:52   #11
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Quote:
Originally Posted by edhead35 View Post
What weight spring should I use with this ammo?
IMO, you should use the same spring weight you use for any other hot 10mm round.
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Old 09-27-2012, 13:07   #12
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Per an email I got from Underwood, all bullets stabilized perfectly through a stock barrel. Even so, do you guys think I could expect leading since the bullets are not gas-checked?

Great forums btw. Glad to finally be part of it!
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Old 09-27-2012, 17:07   #13
edhead35
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Quote:
Originally Posted by arushus View Post
IMO, you should use the same spring weight you use for any other hot 10mm round.
I just need a starting point on spring weight. This is my first venture into hotter loaded 10mm until I start reloading.
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Old 09-26-2012, 20:42   #14
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Very cool

10mm is an awesome round.
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Old 09-27-2012, 16:57   #15
icelandicstud
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these bullets are gas checked.
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Old 09-27-2012, 19:02   #16
Otto33
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Quote:
Originally Posted by icelandicstud View Post
these bullets are gas checked.
I had assumed they were, but the email I received from Kevin at Underwood specifically stated that the bullets are NOT gas checked. That's what lead me to post the question about leading in the stock barrel.
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Old 10-03-2012, 22:10   #17
doverpack12
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This is exactly what i've been waiting for. Although i kind of expected a 200 grain bullet. The 220 is fine with me if it works well. That is interesting if it is truly not gas checked. Any idea when it can be ordered, or has anyone recieved any yet and shot it?
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Old 10-04-2012, 07:32   #18
doverpack12
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I sent Underwood an email last night after my post. Here is the reply i got early this morning.

My question is on item number 242. Is the hard cast bullet gas checked?
No, it is not.
If you have any other questions or need anything else, please let me know.
Thanks, Kevin
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Old 10-04-2012, 09:13   #19
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Merely guessing here, but they may be SNS casting hardcast 220gr. bullets. I have a number of these but I've never shot any out of the stock bbl and they're not gas checked either. I can't imagine they would lead terribly, but would expect them to lead some.
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Old 10-04-2012, 19:38   #20
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Underwoods TMJ 200 and 220 Hardcast are both "out of stock" I'll hold out for re-supply instead of buying DT's overpriced/underpowered offering. Until then my best bear round is the Underwood XTP sadly.
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