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Well actually The nitrocellulose disassociation reaction has to be slowed down to make smokeless powder. Straight nitrocellulose is a high explosive. Well actually according to my friend who is a chemical engineer nitrocellulose isn't classified chemically as an explosive. The law sees it...

Yeah your right Yeah your right. They start with basic RDX but chemically enhance it by reducing the amount the energy level has to be raised to cause it to detonate. A bit like when they enhance nitro cellulose which is already quite flammable to make smokeless propellant. Did that explosion...

Primers Yep you're quite right. Making primers is a far more intricate job compared to making bullets or powder. The active ingredient is cyclotrimethylenetrinitramine also shortened to RDX. This actually is an explosive unlike smokeless propellant. Which always amazes me that we do not need an...

In a couple of extreme cases In a couple of extreme cases I saw the bolt face needed to be cleaned up after repeated pierced primers occured. One would think they would have stopped firing the rifle in these cases even if they may have been in competition ??????

Often a firing pin issue Pierced primers are often a result of a firing pin issue. Either too flat or too pointed. Sometimes the distance the pin travels into the primer cup as well. Although I did have some Remington primers once that many people on the firing line were complaining about but...

I remember one race meeting I remember at one race meeting for TFC's we rolled up with 5 engines and by the time we qualified and did the race we had one barely working one left. At 78K a piece it was an expensive meet. Then there was the broken suspension parts from the tyre shake, burned up...

Drag & BR It seems that quite a few people I know in BR used to drag race. When I was involved in it I ran a TFC. Without a sponsor you couldn't run that class. I finished in that sport in the mid '80s and at that time if we didn't break anything it was costing 5K per pass. I'd hate to think...

Can you elaborate I don't think the technology in optical systems has improved dramatically in the scopes since the introduction of high index extra low dispersion glass in the late '70s. So could you elaborate on what technologies you are referring to. Sure methods of manufacture and cost...

But probably doable If my memory serves correct it cost NASA about 1.7M bucks to develop the first microwave. Now you can get one for $90 at wallmart. To my way of thinking the dies need not be any more accurate with their internal dimensions. Just let the laws of physics control what...

Different perspective I am thinking from a physicists perspective not from an engineers here. Could jacket wall thicknesses be maintained to tolerances so tight it would be difficult to measure variations if the jacket material was forced into a forming die from sheet material hydraulically...

Coil stock By coil stock do you mean flat sheets of metal that is rolled up or material that is already in a tubular form ?

Wall thickness uniformity It seems that great effort is placed on jacket wall thickness uniformity and with good reason I can understand that. But has any manufacturer given thought to a better way to achieve it. Perhaps hydraulically using extreme pressures as a thought. I am sure these days...

Can you purchase jackets only Can you purchase jackets only from Hines ? As far as I can tell the only way you can obtain a bullet made on these jackets is to buy bullets from a manufacturer who uses them.

A look at mine This sleeved and trued 222 used to be my BR rifle until I built the first 6PPC. It was retired and returned to being a field rifle refitted with a hunter class stock and magazine. Fitted with a NF 8x-32x - 56 BR. In mild conditions it will small group in the high one's. Will agg...

Not much Last time I bought 220 russian cases for the 6PPC barrels I paid $257.oo for 100 cases. That's when they are available. Then there is the brass for the .17rem, .222rem, .243win and the .25/06 rem. Even if I get 25% more life out of the brass it won't take long to be in the black. I...

I know I know. I now own an AMP unit. They address all those questions I was asked but couldn't answer. Using a flame makes no sense at all when you become educated. Back then I wasn't. If you think about it like this the price isn't that high. Here is fifteen hundred bucks. Do all the testing...

What I was told 10 years ago Here is what I was told by a metallurgists about 10 years ago regarding annealing brass cases. When he asked me what I was doing I explained. He then asked me what hardness did I need to achieve and how did I know when I achieved it. Reply I don't know I just heat...

AMP unit I took delivery of my AMP unit a couple of months ago. First thing I noticed was that I had to readjust my bump dies. The brass springs back on average about 1 to 1.5 thou less. There is less resistance on the hood press handle going into the die as well. With the cost of 220 russian...

Yep in a 243 Yep I shot RE#17 in a 243. A trued sleeved Rem 700 that I inherited from my late father. The 100 yard groups with 80gn bullets looked promising. But that's where it ended.Even with the 8 twist barrel the heavier bullets and ranges beyond 100 weren't worth talking about. Best load...

Many moons ago Many moons ago when I started in BR were talking '75 - '76 there was a guy at the range who cooled his barrel using a heat sink. A block of steel kept in the shade that had a hole bored in it that was a really close fit to the barrel. After he cleaned the warm barrel he would...