Underwood 220gr Hardcast (New Load)

Intercooler · November 28 2013 06:33:37 AM MST

Search here for "support" and they will show up.

4949shooter · November 30 2013 04:01:56 AM MST

Meh....I got nuthin' I was looking for. And half the posts that showed up were mine when I was discussing the topic with you. $:-\$

Intercooler · December 29 2013 05:14:37 AM MST

Some concerns being expressed in the Glock platform:

http://www.glocktalk.com/forums/showthread.php?t=1514043

4949shooter · December 29 2013 06:06:30 AM MST

Thanks for reposting this, IC.

mt10mm · December 29 2013 06:46:57 AM MST

Here is a photo of the 5 popped primers and the smile. Got my caliper out and measured from left to right;
.440, .437, .442, .438, .441

These were fired from a G20 4th Gen with 4.6" Lone Wolf barrel.

Geeman · December 29 2013 07:04:25 AM MST

Quote from: MT10mm on December 29 2013 06:46:57 AM MST
Here is a photo of the 5 popped primers and the smile. Got my caliper out and measured from left to right;
.440, .437, .442, .438, .441

These were fired from a G20 4th Gen with 4.6" Lone Wolf barrel.

They are all smiled and I'm a fraid-e-cat and wouldn't try another. They are hot, too hot in my opinion, unless your barrel was leading or had other issues.

Greg

mt10mm · December 29 2013 07:16:17 AM MST

I did clean the barrel when I got home and didn't feel it was real dirty. I hope it is my wolf barrel and not the ammo. Underwood is very important to us non reloading 10 mm shooters.

4949shooter · December 29 2013 07:24:04 AM MST

Quote from: MT10mm on December 29 2013 07:16:17 AM MST
I did clean the barrel when I got home and didn't feel it was real dirty. I hope it is my wolf barrel and not the ammo. Underwood is very important to us non reloading 10 mm shooters.

The UW 200 and 220 grain loadings have been on the hot side. The Underwood 165 grain tmj has been great in my stock Glock.

mt10mm · December 29 2013 07:36:12 AM MST

I was shooting buffalo bore 220 before I found the same loading (220gr) loaded by UW. This is my woods carry gun and I like running it hot and heavy but this load is a little much.

4949shooter · December 29 2013 07:38:22 AM MST

How was the Buffalo Bore?

I have a Lone Wolf 5.15 inch barrel coming, and was going to use the Underwood. After this I think I will go with Buffalo Bore hardcast.

mt10mm · December 29 2013 07:46:23 AM MST

Factory barrel with BB ammo did give me smiles but didn't get any with the lone wolf barrel.

4949shooter · December 29 2013 07:56:21 AM MST

Quote from: MT10mm on December 29 2013 07:46:23 AM MST
Factory barrel with BB ammo did give me smiles but didn't get any with the lone wolf barrel.

Thanks..

Intercooler · December 29 2013 08:01:33 AM MST

I did get that one which measured .437". In there I alluded to what would be seen in a Glock and it appears that might be the case. Your Lone Wolf barrel might be a little loose too. If you get a chance and have some Underwood 180gr TMJ 180's, shoot some through there and post the measurements. We have enough measurements here with those to compare. From what I can recall .440" is the DANGER ZONE! You could also pull the bullet and weigh the powder to see how it compares to our findings. FWIW, I told Kevin my thoughts they need scaled back a little the very next day.

mt10mm · December 29 2013 08:12:17 AM MST

Would I be better of with the factory barrel? I don't reload but thought the lone wolf barrel would help with my smiles.

Geeman · December 29 2013 08:32:58 AM MST

Quote from: MT10mm on December 29 2013 08:12:17 AM MST
Would I be better of with the factory barrel? I don't reload but thought the lone wolf barrel would help with my smiles.

Its kinda like a tube of toothpaste. The pressure has to go somewhere.

There will be more chamber space for that gas to expand into with the stock barrel, so the pressure will be less, but the brass will be stretched more, and the more it stretches, the less integrity it has left.

The lone wolf barrel controls the expansion, limits the volume the gas can fill, and as a result the pressure will be higher. I'm sure there will be more signs of pressure in the primers, but I'm guessing it would be safer overall. Remember, I said guessing!!!

Greg