Shooting rest to show how bad a shot I am and how bad my rifle is not
- Thread starter mwsenoj
- Start date
CliffShooting a lot of rounds can cause stringing (usually vertical) as the barrel heats up. To really see what it will do, fire a shot, open the bolt, wait a few minutes, and then load and fire another. Even a well-bedded rifle with a free-floated barrel can sometime (or often?) change its point of impact as the barrel heats.
TexasFats claims:
Lake City Army Ammunition Plant tests 30 caliber match ammo shooting a couple hundred shots per group at 600 yards. The best of their 7.62 NATO match ammo would shoot into 6 inches in their test barrels; not too shabby at all for military stuff shot every 30 seconds or less.
Not if the barrel's properly stress relieved and the receiver face has been squared up with the chamber axis. Folks shooting high power rifle matches at 600 through 1000 yards will put 17 to almost 30 rounds down range shooting one every 20 to 30 seconds. Shot impact does not move in any direction. My last test of such performance at 1000 yards was shooting 30 shots in 20 minutes testing a new 30 caliber magnum barrel starting with it cold. All 30 shots went under 6 inches. The barrel was too hot to touch. The test before that fired the same way with a new .308 Win. barrel put 20 shots in 3.3 inches at 800 yards.
Lake City Army Ammunition Plant tests 30 caliber match ammo shooting a couple hundred shots per group at 600 yards. The best of their 7.62 NATO match ammo would shoot into 6 inches in their test barrels; not too shabby at all for military stuff shot every 30 seconds or less.
mr.t7024 claims:
The impact of a 25 to 30 pound spring driving the firing pin against something that stops it is nothing compared to 5000 pounds of force smacking the bolt face when the case head slams against it half way up the pressure curve in the chamber.
Don't need snap caps for center fire rifles. All those thousands of people dry firing their center fire match rifles millions of times since the early 1900's never had a mechanical failure nor any damage to their expensive rifles cause by dry firing. If there really was a problem doing so, they would not have done it.
The impact of a 25 to 30 pound spring driving the firing pin against something that stops it is nothing compared to 5000 pounds of force smacking the bolt face when the case head slams against it half way up the pressure curve in the chamber.
Colorado Redneck
New member
Lead Sled
I use a lead-sled for accuracy determination when working up new loads or tweaking loads. When you shoot a hundred rounds or more it is common for a bit of flinch or sloppy form to get started. The sled doesn't eliminate everything, but it helps.
Some rifles take a lot of work to find good accurate consistent loads. I have whined about a 204 Ruger in this forum, and still have some issues with it. I have tired 12 different bullet/powder combinations, with two of them working fairly well. The darn thing will still fling a round away from a group fairly often. But then I shoot an old 22-250 Savage and get 3/8 inch groups nearly every time I shoot at the range. 4 years ago I was ready to get rid of that gun, and the gun seller I make rich advised me to try a different bullet. I did and it was damned near a miracle. The old 55 gr. spire points weren't working and I was blaming myself, the scope, and the gun.
Don't give up.
I use a lead-sled for accuracy determination when working up new loads or tweaking loads. When you shoot a hundred rounds or more it is common for a bit of flinch or sloppy form to get started. The sled doesn't eliminate everything, but it helps.
Some rifles take a lot of work to find good accurate consistent loads. I have whined about a 204 Ruger in this forum, and still have some issues with it. I have tired 12 different bullet/powder combinations, with two of them working fairly well. The darn thing will still fling a round away from a group fairly often. But then I shoot an old 22-250 Savage and get 3/8 inch groups nearly every time I shoot at the range. 4 years ago I was ready to get rid of that gun, and the gun seller I make rich advised me to try a different bullet. I did and it was damned near a miracle. The old 55 gr. spire points weren't working and I was blaming myself, the scope, and the gun.
Don't give up.