aluminum feed ramp


PDA






squinty
January 26, 2010, 11:15 PM
I have a few aluminum framed pistols. One (a Bersa thunder) has some scratches in the feed ramp from hollowpoint bullets.

I thought copper was softer than aluminum?

I wonder about brass jacketed or nickel cased ammo like golden sabres or hydra-shoks. Are they harder on feed ramps? Does brass jacketing accelerate wear in the bore?

If you enjoyed reading about "aluminum feed ramp" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
-v-
January 26, 2010, 11:21 PM
Unless the feed ramp is an entirely separate piece of metal from the barrel, it should be hardened ordinance steel, just like the rest of the barrel...

14427H
January 26, 2010, 11:31 PM
There are a couple threads here on this, if the ramp is aluminum and the ramp finish was "polished" it may have gone through the anodizing. It will wear like nobody's business at that point. That is a common mistake you have to look for on used lightweight 1911s.

I personally have had two "engineering sample" SIG 1911s returned (and refunded) because SIG did it at the factory when they first started selling aluminum frame 1911's.

squinty
January 27, 2010, 03:45 AM
There is a ramped portion of the frame, it's aluminum.

squinty
January 27, 2010, 03:47 AM
Not polished, it was factory new, only friction from the bullet penetrated the coating. I wonder how?

NWCP
January 27, 2010, 05:25 AM
I own a couple of Walther P5 9mm pistols. The bloody things are very accurate and have a nice DA/SA trigger. I only use FMJ 115, or 124 grain ammo in them due to the aluminum ramps. They have an aluminum frame and feed ramp. When carrying a P5 I load it up with Golden Saber 124 grain JHP. I wouldn't recommend a steady diet of hollow point ammo in any aluminum framed pistol and I avoid +P.

rmfnla
January 27, 2010, 02:02 PM
I have a few aluminum framed pistols. One (a Bersa thunder) has some scratches in the feed ramp from hollowpoint bullets.

I thought copper was softer than aluminum?

I wonder about brass jacketed or nickel cased ammo like golden sabres or hydra-shoks. Are they harder on feed ramps? Does brass jacketing accelerate wear in the bore?
Depends on several factors such as alloying metals and heat treating.

Check this out: http://www.azahner.com/knowledge_base/ZKB_08%20metal%20hardness.pdf

If you enjoyed reading about "aluminum feed ramp" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!