buck460XVR
Member
- Joined
- Feb 6, 2007
- Messages
- 10,093
Strange how bonded rifle bullets are so much tougher, but this doesn’t carry over to pistols?
Didn't say anything about the toughness of Bonded bullets.....just that this was the construction of Uni-Core handgun bullets. Deep Curls and Gold Dota are also Speer bonded bullets and are very tough. Their 300gr Deep Curl is my preferred bullet for deer in my .460. But it is designed for .460 pressures and velocities. I have also used Speer's 260gr Uni-Core for reduced recoil loads at .45 Colt velocities, because this is what they are designed for. Speer says the same thing about them as they do about the OP's bullet. Use 'em at the pressure and velocity they are designed for.
One thing I don’t get, perhaps because mine is an automatic, how does a 350 grain round shoulder produce more cone erosion and top strap cutting than a 350 grain flat meplat?
Has to do with the gases that rush by the bullet as it passes thru the cylinder gap on it's way to the forcing cone. Thin jackets over a swagged core under too much pressure can deform and allow more gas to get by and thus erode more. Folks with no experience reloading for a specific platform should limit their advice if they have little or no knowledge of said platform.
If the erosion was from the higher volumes of slow powder for the lighter weight bullets, why would bullet construction matter, these jackets being two thousandths thicker than Hornady’s?
It's not always about thickness, but alloy used. Think of the Brinell hardness of hard cast bullets.
Would not both types of bullets be equally as detrimental to the forcing cone?
Lighter bullets will erode more with slow burning powders because of their shape. They are shorter, thus allow more gas to bypass them in the cylinder gap. This is the issue with 110 gr bullets when pushed hard in .357 revolvers. Lighter bullets are also easier to move thus they have more unburnt/burning powder behind them as they pass thru the forcing cone.
I would also assume flame cutting the top strap would have more to do with the “fuel” than the “tires”?
This is true when appropriate bullets are used. Top strap cutting and forcing cone erosion is just the nature of the beast, but can be accelerated and become excessive with poor reloading practices, such as using inappropriate bullets.
I have heard indications that Lil’ Gun powder burns with much higher heat than H-110 or CFE BLK, and this may have been a major contributor to the wear. Is the true?
What it is with Lil' Gun, I don't know. It does produce significantly more heat in my guns, both revolvers and handgun caliber carbines, than other magnum powders. There is also evidence of it promoting excessive and premature erosion of forcing cones and barrels. Since I've seen no advantage of using it over other magnum powders, I don't use it anymore. I want my guns to last as long as possible.
And, hey. These aren’t arguments.
I got questions. I’m just lookin’ for answers, and you’re here right now.
They’re is an elderly gentleman being consumed by dialysis who wishes to unload his XVR(and his Sportster, but I have kids yet.) to me. I was the only one to smile after shooting it, instead of crying about my hand.
Since I have no ambitions of hunting Yaks or Yetis, it would be another FunGun. But not if I ruin it with fire..
Then I suggest you take the advice of powder makers and bullet manufacturers as opposed to random folks on the internet.