Kind of off subject..... I'll be moving to the black hills of South Dakota by the end of the summer. Anyone know of any good places to shoot and stretch out to a mile?
Scratching my head.... SET ME STRAIGHT
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Haha - yeah definitely not a friction reducer that I'm using that I know of. About three years ago I decided to streamline all of my processes and build a rifle that was easy to obtain, grab n' go, reliable, repeatable platform and along with that I streamlined my cleaning process as well. I went from an assortment of semi custom/custom builds. My last rifle was an Accurate Ordnance TMR fully custom 6.5 Creedmoor that I paid $4300 for and I knew I wasn't doing that again although that rifle shot a ticks *** at 1000 yards. When the 6.5PRC was released I went completely away from my norm and bought a Christensen Ridgeline from gunbroker. I ordered a Nightforce 0 MOA picatinny rail, bedded it, installed my Nightforce ultra light rings and then mounted the NF ATACR 4-16x50F2 that I pulled off of my Creedmoor. I used my wheeler engineering scope leveling tool to make sure it was dead nuts and I was set. I got rid of the factory stock and ordered my Manners EH-1 with the new fixed cheek rest and overall the manners stock weighed .1 ounce more than the factory stock. Threw on my carbon fiber modular evolution bipod and I had a great all around rifle I can use for anything from predator hunting to big game as well as a good stalking rifle. This was totally different from what I was used to and I'll have to say that it has been the best rifle I've ever owned by far. With that change I decided to streamline my cleaning process as well. When I clean my barrel I use a bore snake with a couple drops of the Otis 085 bore cleaner and run the snake through about 10-12 times and call it good. This is also completely different from anything else I used to do with the patches and hours of cleaning. I use Amsoil firearm cleaner and lubricating oil and I spend much less time worrying about anything and more time using my 10.5 pound rifle for anything and everything. It's a solid, lightweight setup that has served me well for almost three years now. I have no intention in changing anything about it. I guess once I shoot the barrel out and have to re-barrel, I'll see if it slows anything down.
I had a similar discussion with another member. Try using https://bergerbullets.com/ballistics-calculator/ with the same information you have with the JBM and see what you get. IIRC, JBM uses barometric pressure, and Berger does not. Of course, as others noted, you'll need to factor in the "actual" velocity and "actual" drop against the "computed" numbers. Good luck!
I've never experienced anything negative with a bore snake. Not sure how old the military rifles were that you are referring to but while I was in the Marine Corps the only issues we ever had with barrels was due to heat from over cycling. If I was starting to see any accuracy issues with my barrel I would certainly scope the bore and take a look. I think the fact that I use the Otis bore cleaner in conjunction with the bore snake may be the key but I'm not sure.
Savage 22-243 AI
Well-Known Member
Magic!.....who cares! Don't mess with a good thing.
I call it real world Applied Ballistics.
Clean the heck out of your barrel until its beyond clean. Then check velocity and see what happens.
wolffo
Well-Known Member
if youre coming out west pick up a Gazetter Atlas and find yourself some BLM land
I ran into this with my 26" 300 win mag
I attributed the speed difference to the longer barrel
I have a chrony, but stopped using it a long time ago
I ran into this with my 26" 300 win mag
I attributed the speed difference to the longer barrel
I have a chrony, but stopped using it a long time ago
Bobcape
Well-Known Member
Contact me when you get moved out here and I'll help you find some distance shooting locations.
Question for you on your data. What is your exact POI at 100 yards? Is it exactly centered or high by a certain amount? I helped a guy a couple of years ago that had similar issue. I asked twice if he had verified his zero at 100 yards. Both times he said Yep. The second time he added "I'm exactly 3" high at 100".
Bob
I can see where that would screw things up but I am 100% dead center at 100 yards. I appreciate that, I'll be sure to hit you up.
I think he's talking 6.5 PRC....it was a little confusing.
brushandbay
Well-Known Member
Have two rifles that shoot the hornady factory loads faster than advertised. 300 win mag is 150 faster and 28 nosler is 215 faster. Verified both at 500 and a 1k. Shot them out of a couple others and were a little lower than advertised so I just figured i happened to get fast barrels.
catamountsierra
Well-Known Member
That makes me wonder about chamber dimensions. They should be fairly close, one would assume, but there is always some variability. Wouldn't a tighter chamber result in higher velocity than a looser chamber, all else being equal? Less energy from the powder would be needed to expand the case to the chamber walls meaning more energy to push the bullet out the barrel. Then too, how much difference would that make?
brushandbay
Well-Known Member
Odd thing is both that are faster are fierce edge rifles. Tried them both on different chronograph's and drop tested. Reloads for the nosler are moving a little faster and no pressure signs so not sure. Shot the 225 eldm factory loads out of a bergera 300 prc and it was right under advertised.
