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Barrels gone bad! I once bought a brand new Anschutz. The first time I shot it I fired a 400-40X. It seems as the months went by and I fired it more I had trouble shooting a 400 with it every time. Must have been something was just going bad. You try to keep your guns good and pure but...

Hi Tim! I've been off this forum for a while but I'm happy to see you are still around. I'd forgotten you require an explanation for most things technical, As to your question about copper and tin: Tin is very important element found in bullet alloys, and then some 22 bullets have a copper...

Changes! Glazing is something that occurs on cast iron - not likely to occur on steel. Anyway, as surfaces get very smooth they don't need a thick lubricant film. Roughing of new surfaces is probably done more to obtain a good fit, that is to establish parallel moving surfaces, than to hold a...

One problem with high walls (and low walls) is with extraction. They don't have enough leverage to extract stuck cases, such as you get with hot loads. The extractor is also weak and prone to breakage. It's hard to get you fingers into a high wall to pull out a case that is not fully...

I just put together a AR with a DPMS barrel. It's 1 in 9, 223, 24", heavy. It's free floated and correctly torqued. What accuracy would any of you expect from this barrel - 1 min, 1/2 min, or just what would be reasonable? Also, would anyone like to comment on accuracy of 223 with Reloader 15?

EVERYTHING is in the eye (mind) of the beholder!

alinwa..... "Now THERE'S some liberal pap!" No, that's quantum mechanics pap! joe salt....."was it God or evolution?" Depends on whether your mind is working intellectually or emotionally and whether you have created a world that is following natural laws or one running...

Someone asked...."If a car was going at the speed of light and the headlights were turned on - what would they look like?" The light would act like the shock wave that spreads out from a bullet. Directly in front of the car you won't see light because it can't be transmitted to you faster than...

quoting Larry Elliot.....I think that Heisenberg showed that it's not possible to know both the position and velocity of something simultaneously, or more accurately the greater precision that the velocity or position is known the less precision the other can be known. That concerned subatomic...

sherrett....why does a benchrest barrel lose accuracy between cleanings If a barrel lost accuracy between cleaning, then you should get the best accuracy by cleaning between each shot. Ive tried this - doesn't seem to work. Sherrett...will this additional fouling reduce or increase barrel...

friction and wear Contact pressure, which determines friction, is a function of yield strength of the bullet metal and the pressure applied to the base of the bullet. Strength of bullet is same from breech to muzzle, but base pressure is higher at breech, so total contact pressure, and thus...

If winning with a tuner proves the tuner is effective, then does winning without one prove it is not needed?

To Jackie and others who say 6BR case too large... I'm not disputing this, I'm trying to learn. I shoot both 6BR and 6PPC. Is it capacity or is it capacity to bore diameter ratio? Or is it capacity to powder weight ratio? Or is it capacity to bullet weight ratio that is too large? Or is it...

To Alwina... Quote...-The tighter twist doesn't increase pressure or bore friction, no extra heat nor increased deformation. Is that in principle or just from a practical standpoint?

If the gun ("good" or "bad") entered into wind deflection, how would anyone ever make up ballistics charts or show calculations for wind drift? I know all such calculations are somewhat approximate but are they off by a factor of 5 or 6. This is what DonMatzeder would have you believe. I...

To Lynn... You said.... Pacecil As you already know Bill is using a machine rest and dial indicators and his fixtures/test procedures are in his book.This is nothing new to you so I guess you just felt like posting today? If you look on Varmint Al's website like you suggest I do you should my...

To Varmint Al... That quote you referenced to me was made by Lynn, not me. I'm familiar with what you have modeled. As to that barrel shape that is flattened off on the top and bottom, why would it offer any real advantages? The horizontal dispersion, everyone seems to agree are of no real...

Lynn, you said.... Bill Calfee is descriing exactly what he is seeing with his own two eyes.Vibe is describing 0.003 seconds of a barrels vibration pattern as seen by testing equipment and computer modeling.He is doing that because you can't see a rifle barrel vibrate with the naked eye. How...

Well if I were 123xyz I would really be confused! Nader,eddie and wayne talk about "nodes" of velocity, and vibration "nodes", and velocities that are "different" even though they have the same number or value, and bullets that know what powder they got their velocity from, and velocity "sweet...

It's just a matter of where your interest lies. If you just like to hang out with the guys and shoot your gun then this is just what you are interested in. However if it's the gun itself, the ammo, ballistics, and all the technical stuff that goes along with this then that's what you will get...