"fastest load" as defined by burn rate or max pressures/exit velocity?
Gunner
"Aren't cats Libertarian? They just want to be left alone. I think our dog is a Democrat, as he is always looking for a handout" Unknown Usnet Poster
Heh, heh, I'm pretty sure my dog is a liberal - he has no balls. Keyton
Highest muzzle velocity. If we load for a given max peak pressure, then the highest m.v. won't usually come from the fastest burning powder. M.v. is a function of the time integral of pressure from ignition until the bullet leaves the muzzle.
Now, when I took calculus , why didn't I get problems with different gun powders,charges, barrel lengths, and max pressures. maybe I wouldn't have slept through it and forgot everything.
Karl
Gunner Asch wrote in news: snipped-for-privacy@4ax.com:
It depends on how tight the magazine is. Offhand matches are shot single loaded, so that is a specially selected tight fitting magazine with a single shot follower in it.
It can't be that big a problem. The guy with that rifle tied for the highest total X-count for three matches with about 100 shooters competing.
Doug White
True at times..but not always
But you did good.
Gunner
"Aren't cats Libertarian? They just want to be left alone. I think our dog is a Democrat, as he is always looking for a handout" Unknown Usnet Poster
Heh, heh, I'm pretty sure my dog is a liberal - he has no balls. Keyton
Now you know what it takes to be an "expert witness" in court when firearms are involved.
On the other hand..you really dont need to know all that much. Just use a cookbook properly (reloading manual) and use your tools properly.
And never every try to reload "fast". Take your time and double check everything. After a while..it all becomes second nature and you will do reloading fast.
Gunner
"Aren't cats Libertarian? They just want to be left alone. I think our dog is a Democrat, as he is always looking for a handout" Unknown Usnet Poster
Heh, heh, I'm pretty sure my dog is a liberal - he has no balls. Keyton
Crom..but his stance sucks!
Course..he is shootng a poodle shooter cartridge..shrug
Gunner
"Aren't cats Libertarian? They just want to be left alone. I think our dog is a Democrat, as he is always looking for a handout" Unknown Usnet Poster
Heh, heh, I'm pretty sure my dog is a liberal - he has no balls. Keyton
Some people DO shoot cast bullets in you rifle. Research and see if you want to go through the rigmarole to get the right load that will cycle the action, not lead the barrel and hit what you want.
Gunner Asch wrote in news: snipped-for-privacy@4ax.com:
Everybody is built different, and different rifles require different positions. The best stance is one that works. "Works" means stable, repeatable, without causing undue strain over the course of a long match. If you want pictures of bad stances, I can dig up a few.
Same guy used to shoot a 14 pound Rem 700 in 308. That requires a more conventional stance with more back bending. The magazine gets the AR-15 style rifle high enough without having to go though contortions, and the adjustable butt plate helps to permit a more upright head postion as well. It's like shooting an Olympic free rifle with a palm rest. Some folks still shoot the AR-15 with their support hand up under the barrel, and that requires a more old-fashioned twisting back lean.
Doug White
I've read about guys taping or clamping an aquarium pump or other vibrating motor to the powder reservoir to improve the flow and consistency with stick powders.
I have not tried it myself, but it was mentioned in a bullseye forum where consistent powder weights really matter.
I HATE stick powders but with a small vibrating motor on the hopper they tend to feed MUCH more consistent. I still weigh a few throws every run though.
The last sentence is always true. That's not to say that there aren't other factors but m.v. is necessarily a function of the time integral of pressure. That can be derived from first principles, Newton's law.
Actually predicting or modelling what the pressure vs time profile might be for a given powder, primer, initial release pressure, bullet and bore is a complex can of worms but that doesn't change the underlying physics.
I've found QuickLoad to be a useful tool but I don't believe it's predictions without verification with a chrony with a given powder. Sometimes it's surprisingly accurate but not always.
The cookbook recipes aren't always all that accurate either, but they provide plenty of admonishments for sneaking up to max loads and watching for signs of overpressure.
I compare chronograph readings with published data. If my m.v. is close to what a tested and published load delivers, I figure I'm safe unless the extracted brass tells me otherwise.
Aw blush...
Did you notice the guy I pointed out..third one back? Much superior form, based on back line alone.
Shrug
Gunner
"Aren't cats Libertarian? They just want to be left alone. I think our dog is a Democrat, as he is always looking for a handout" Unknown Usnet Poster
Heh, heh, I'm pretty sure my dog is a liberal - he has no balls. Keyton
Gunner Asch wrote in news: snipped-for-privacy@4ax.com:
Certainly more classic or conventional. I think he was shooting a standard bolt gun, which requires a good bit of back lean depending on the stock & forward hand position.
If folks REALLY want to learn all about target rifle shooting, the best book is "Ways of the Rifle 2009". This is a modern, thorough study of Olympic competitive rifle shooting, with lots of data & interviews with different top European shooters. One thing that becomes clear is that no two top shooters use the same stance (or much else for that matter). Foot placement, head position, cant, sight apertures, trigger setup, etc. all vary quite a bit. Some of them do things that are entirely contrary to what is normally taught. There are common aspects to what they do, but some of them differ by almost as much as they are alike.
Doug White
"Steve W." wrote in news:hdt66p$aug$ snipped-for-privacy@aioe.org:
Some stick powders still shoot very accurately, even with larger weight variations than many people are comfortable with. 4895 powder in .308 can vary by as much as +/- 0.3 grains and still give very good accuracy. My Redding powder measure can certainly hold tighter than than with
4064, which is another fairly forgiving powder. Things get tougher as you go to smaller & smaller case volumes. 32 S&W is a popular cartridge for international pistol competition, and a tenth of a grain is a good chunk of a full load on one of those.The US Palma team (900 & 100 yard international rifle competition) used a Dillon 1050 to load one year with 4895. They were making a HUGE amount of ammo, and found that they had to tweak the Dillon periodically to keep the charges in line. For an individual user running much smaller batches, you could probably do fine with a Dillon, checking charges periodically. Two things that help with the Dillon: 1) polish the inside of the powder measure funnel & throat, and 2) bolt it down to something massive so the vibration of cycling doesn't make it dance around randomly.
Having a small vibratory on the measure is a neat trick that should help as well. I wonder if a cell phone buzzer would work?
Doug White
I went thru the local recycling yard today. It was very muddy, but today I remembered to take some rubber boots. Some places the mud was about 10 inches deep. But enough of that.
Inside they had a box nearly filled with brass. Mostly pistol brass. .45 , .38 special, some other smaller brass that would fit inside a .38 shell., and .223 brass.
I do not think there was any rifle brass other than the .223 brass.
I figure it was from a police range or maybe from a military range.
Any of you willing to pay say 7 dollars/ 100 for any of those sizes plus actual shipping costs in priority mail boxes. If so I could stop back by and get a bunch before it is gone.
Dan
I went thru the local recycling yard today. It was very muddy, but today I remembered to take some rubber boots. Some places the mud was about 10 inches deep. But enough of that.
Inside they had a box nearly filled with brass. Mostly pistol brass. .45 , .38 special, some other smaller brass that would fit inside a .38 shell., and .223 brass.
I do not think there was any rifle brass other than the .223 brass.
I figure it was from a police range or maybe from a military range.
Any of you willing to pay say 7 dollars/ 100 for any of those sizes plus actual shipping costs in priority mail boxes. If so I could stop back by and get a bunch before it is gone.
Dan
7 cents each for mixed headstamps is a bit high. Four cents each decapped, tumbled and sized is about average. .223s a bit more.
I picked 7 cents as it was half of what I found at
Dan
I picked 7 cents as it was half of what I found at
I've had the best luck at the auction sites. Dan
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