Just to update folks that might be interested. Federal eldx was blowing out 1 in every three primers and the velocities were nearly 2900 in an 18in barrel.
"At the core of all anger is a need that is not being fulfilled."Pure ******* ignorance yet again. And proof that shooting a lot doesn’t really make you an expert in anything. I’d put you as juuuuust less of a charlatan than Cortina. He probably shoots as much as you do, but actually puts his name out there and has skins on the wall. He’s built his entire reputation/persona on precision and he treats his gun like his ass, cleans it after every use.
The 6.5 PRC that after 150 rounds of ammo loaded in the exact same way, with same lot materials, all of a sudden had extremely hard bolt lift with no velo increase, and it went away after a thorough cleaning wasn’t a carbon ring???!?!?
The 22 GT that shot great for the first 500 rounds, then would blow up ~5% of bullets if I went more than twice without cleaning, then at
800+ rounds is blowing up 8-10% regardless?? Nope! Bullets never blow up and cleaning doesn’t matter because some anonymous moron on line said so!
Anyone reading this thread I would look up what someone like @Frank Green has to say. Again he’s someone who looks at 1,000’s of barrels a year for his living. Not just someone who “sHoOtS a LoT!1!1” and made a name for himself by dropping things…
Im struggling to get over 3100 fps without running out of room for powder in my case Which is kind of why im leaning away from the amount of powder being the issue. And all my other loads are within 20 ES or less. But im no expert. Just in the past 2 years ive been trying to learn and become a more serious rifleman and reloader. Maybe ill look into getting a better scale to confirm these charges.
22” barrel. I've tried staball hd but my ES was pretty high but that was before i started using the neck expander too. Sorry that was confusing im saying between all my load workup my loads have been between those numbers which is why when i get a velocity spike at 3200+ it really stands out. Heres my info from yesterday.
Many folks would say that’s not enough neck tension and .003” to .005” is much more common. I would bet lunch that will help your velocities even out.
Okay i can try that, the bullet manufacturer suggested one thousandth under caliber.
With a super light neck tension, your bullet can get started towards the barrel just by the primer impact before any powder can be burned. Also, if you are magazine feeding the cartridges every shot can cause the bullet to move in the casing and not always in the same direction. Neck tension of 0.001 is really light for a hunting round. I would not be comfortable using it.
Copy, im single feeding them, what is your suggestion for neck tension?
Most guys speak of neck sizing to within 0.002 of the caliber to get a 0.003 neck tension with brass spring back. You would need to measure you actual neck ID and calculate what your spring back is and then adjust from there. I would look for a measured neck tension of 0.003 to give you a variance of 0.002 to 0.004 depending on bullet consistency.
After further investigation i have 2 thousands neck tension. .284 cal bullet measured using my calipers, and inside neck diameter after brass spring back was .282. Still think thats likely to cause bullet jump from the primer?
As you probably noticed, it’s really hard to get a good inside measurement with calipers because the contact surfaces are flat while the case is curved, and the design of calipers doesn’t have a self zeroing feature like an outside measurement does (cheap calipers are likely to not be exact between the inside and outside contact surfaces). Outside measurement before and after seating the bullet will generally be more accurate.
To properly measure your case neck I.D. you would need a snap gauge, an inside ball micrometer, or pointed inside measuring tool due to the round nature of the neck. These are more specialized tools than the dial calibers are.
