6.5 prc ADG brass issues.

remington jim said:
I got a Box of 50 ADG brass for my 6.5 PRC and just obtained 2 boxes Barnes 6.5 127 LRX bullets - I have RL26 Powder and I have Fed215 and 215M Primers - I'm set to go as soon as BRNO284 get's my barrel glued on ! -I am So HOPEING that Barnes LRX shoots good in my new Gun. RJ
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interesting . Mitch put mine together as well . exellent job.

on another note i was loading those LRX bullets and noticed that the tips on alot of them are out of center . if you look strait down on them with some light you can see copper on one side or the other. the tips actually move with not much force from you finger. Has anyone else noticed this problem.
maybe its from my seating die?
 
profesional 111 said:
interesting . Mitch put mine together as well . exellent job.

on another note i was loading those LRX bullets and noticed that the tips on alot of them are out of center . if you look strait down on them with some light you can see copper on one side or the other. the tips actually move with not much force from you finger. Has anyone else noticed this problem.
maybe its from my seating die?
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I wrote Barnes about exact topic, I couldn't get them to shoot in my PRC, and I thought it may be due to offset tips - so I wrote them about this (later found out it was the barrel, not bullet) - here is their reply:


" The offset tips are NOT why they don’t shoot. When it comes to accuracy, the base of the bullet is the most critical aspect. If there were differing angles at the boattail or large enough scratches or dents, that could degrade accuracy. As for the slightly off-center tip, the gyroscopic weight required to throw a bullet off axis is insufficient. The tip does not contact the barrel so does not change the bullets harmonics as it is traveling down the bore. Thus, an off-center tip is not responsible for a bullets accuracy. What can be affected by the nose profile is the ballistic coefficient. If shooting long range, then the BC number could be affected by a couple of points. The bullet has to have enough time of flight for that change to take place or be distinguishable. Time of flight on that bullet inside 1000 yds or so is generally not enough to be affected by a slightly off-center tip. When shooting out to 1500 yards on a weekly basis with this exact bullet I personally have not had to make any adjustments with the crooked tips versus straight tips. Trust me when I say, “I understand your concern”. The past few years I’ve worked in our Ballistic Lab, shooting accuracy test, bullet expansion testing in water as well as in ballistic gelatin. In addition I’ve been involved if testing ammunition for pressure, velocity, accuracy and function testing in numerous firearms to insure reliable functioning. Also, I’ve worked with load development, load data, barrel break in, competitor bullet and ammo testing, etc.
When I first noticed some crooked tips I pulled together the worst I could find and shot multiple 10-shot groups out of a “Return To Battery (RTB) rest. When using the RTB we place a barreled action in a heavy steel fixture which removes any human error when shooting. I wanted to shoot some to see for myself. I also shot multiple 10-shot groups with perfect tipped bullets. Same bullet (6.5mm 127 gr LRX), same load, barrel…..everything the same. There was no discernable change in accuracy at 100 or 300 yards. Besides our extremely long range capabilities outside where we can track a bullet, in flight, for thousands of yards, we have multiple indoor ranges and the 300 yard indoor range will measure both 100 yards and 300 yards, simultaneously, for velocity and accuracy. Some groups with the straight tips would shoot slightly better than the crooked tipped bullets. Then, vice versa on the next 10 shot groups. They ended up shooting the same size when all 10-shot groups were averaged.

That was just a tiny little test I did on my own here at Barnes Bullets. More importantly we run extremely thorough tests and continue to do so on all our current projectiles as well as future projectiles still in R&D. We measure accuracy, drag, point of impact shift, etc., from 50 yards out past 2000 yards, with thousands and thousands of rounds tested. Since we are the oldest bullet manufacture for reloaders, we know a thing or two about bullets and accuracy. We have the most state of the art, industry leading facility and testing equipment in existence; verifying with doppler radar for our own internal knowledge as well as for military contracts. We know exactly what affects accuracy, what doesn’t, or how much is affected. If you are the guy shooting 500 yards, heck, even a thousand yards and closer, you will have no real discernable change in the point of impact from those off-center tips. If there is a difference, it is from a different external factor or is human induced."
 
profesional 111 said:
interesting . Mitch put mine together as well . exellent job.

on another note i was loading those LRX bullets and noticed that the tips on alot of them are out of center . if you look strait down on them with some light you can see copper on one side or the other. the tips actually move with not much force from you finger. Has anyone else noticed this problem.
maybe its from my seating die?
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This is really interesting. Just the other day I loaded up 10 of them to start developing a load. I shot some factory eldm's and my 142gr SMK handloads first and everything was fine. Shot the LRX's and they all hit consistently 1.5-2 inches to the right. They were loaded in new nosler brass while the SMK's were in my used hornady, so maybe that's the difference.

Anyways, I adjusted my scope and then when I went back to my other rounds they were all left by the same amount. Kind of frustrating. But I was happy with my velocity with 53.5 gr of H4831 sat around 3000 fps. Had ejector marks at 54.0 and 54.5 gr.

I will have to take a better look at the bullets themselves maybe. Going to load a couple SMKs in the nosler brass to see if its a brass issue. If that's even a thing. The nosler brass seems to be really bad for consistency.
 
If the loads are on virgin brass, I'd expect things to settle down going into fire formed brass with uniform neck tension
 
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