Bigeclipse
Well-Known Member
- Joined
- Aug 10, 2012
- Messages
- 1,967
The terminal ascent line looks like a good idea as far as bullet construction goes. I wonder who manufactures the bullets?
Looking at the pics in that article the new ones still look like they are cast somehow due to the uneven/pitted surface of the bullet-- me thinks this is why they arent more consistant as they dont look machined or drawn like normal lead core or custom mono bulletsThey have very good terminal performance but I hope they get the quality control down. The base to ogive measurements I did on the 7mm 155 Gr TLRs that I had were pretty bad. I also wish that they had made a 140 Gr range for the 6.5 and 160-170 Gr for the 7mm. But oh well.
FEDERAL
here you go, google foo is your friend
https://www.thefirearmblog.com/blog...-ascent-hunting-rifle-ammunition-and-bullets/
looks like they added a 2nd groove to the tlr design
weights and BC are the exact same as the TLR bullets so it appears they have improved the TLR bullets, wonder if the tlr will now be discontinued as we have seen many sites that sell the tlr bullet state that they are discontinued
That's interesting.Interesting about the tips ; "The patented Slipstream polymer tip has a cavity going almost to the very tip. Upon impact, the tip breaks and lets fluid get into the nose cavity thus starting the expansion"
Hammer Bullets testing said they could not get reliable expansion with tipped bullets that fluid had to get into the hollow point to initiate expansion. This type of tip may overcome that issue and raise the BC.
Wonder if it's just a typo but odd they list the 130 grain 6.5 bullet at 2 different BCs. The .308 loads all have the same BC listed, as one would expect.
[/QUOTE
- 6.5 Creedmoor 130 grain, 2825 fps, .545 G1 BC
- 6.5 PRC 130 grain, 3000 fps,.532 G1 BC
That is weird
It seems that both Hammer and Federal came to the same conclusion that it had to be FLUID that initiates the expansion, not the tip itself. I gave up on Barnes 6.5 LRX after ~30 kills from a 6.5x284 and never recovering a single bullet with all exits being a pencil thru with no blood including 2 cows rib to offside shoulder. Great expansion from the .30 cal though, I probably have a dozen in the perfect peeled back banana shape that are near 100% retained weight.That's interesting.
The conclusion is in contrast to Barnes Bullets moving from open point to plastic tip with the reasoning being both BC management AND the tip being driven back to initiate expansion.
Wonder if it's just a typo but odd they list the 130 grain 6.5 bullet at 2 different BCs. The .308 loads all have the same BC listed, as one would expect.
- 6.5 Creedmoor 130 grain, 2825 fps, .545 G1 BC
- 6.5 PRC 130 grain, 3000 fps,.532 G1 BC
It's not uncommon for bullet manufacturers to list different BC for different velocities. BC does not remain the same throughout the flight of the projectile.