The guy in the video failed to mention that a bullet might be stable in a 1 in 10 twist, but it loses b.c. because it hasn't reached a 1.5 stability factor. With a faster twist it can obtain that stability factor and reach the higher b.c.
The only thing a 165 ABLR gets over the 150 NAB is less wind drift. In my gun, I get 2950 with a 150 NAB. I'd estimate I'd get 2850 with the 165 ABLR. At 500 yards, the elevation is almost identical, the 165 drifts 3.5 inches less with a 10 mph wind. At 400, there's a 2 inch difference in drift.
The wind does weird things in the mountains, like blow 2 different directions between shooter and target. Wind rolling over a ridge or around a point does some interesting things. For me, I'm not comfortable with long range wind calls in the mountains.
Another way to look at windage is in degree of error. If you assume 0 or 2-3 mph hour wind between you and your target, using an assumed 10 mph 90deg crosswind, you have somewhere beween 7 and 10 mph margin of error. If we assume an 8 inch diameter target and a 10 mph wind, you can hold dead on with a full value wind and stay inside 8 inches at some distance - meaning you can be off by up to 10 mph - assuming you have the direction right - at 340 yards with a 270/150 NAB. That distance is about 375 yards with a 270/165.
The main question: can shooter harness that advantage?
I just had a Lilja #2, 8 twist barrel installed on my Rem Titanium 270 replacing the original 22" 10 twist. Fluted and installed by Feldcamp. I was at Sportsmans Warehouse one day looking at scopes and the guy behind the gun counter asked What do you plan on putting this on, I told him about what I was doing......His reply was " You should get one of these 6.5 Creedmores I've got, it'll outshoot and outkill that old 270". I just said yeah right and left.....what a dumbschitt!
Life (and forums) is like a box of animal crackers----There's a Jackass in every box
I just had a Lilja #2, 8 twist barrel installed on my Rem Titanium 270 replacing the original 22" 10 twist. Fluted and installed by Feldcamp. I was at Sportsmans Warehouse one day looking at scopes and the guy behind the gun counter asked What do you plan on putting this on, I told him about what I was doing......His reply was " You should get one of these 6.5 Creedmores I've got, it'll outshoot and outkill that old 270". I just said yeah right and left.....what a dumbschitt!
Sounds similar to a guy I ran into at a LGS. At the time, I was looking for a 280. They had a few Rem 700s and Ruger 77s and asked if any were in 280. He said, "No, but I have several 270s." He then went on to say how the 280 was only good for deer and smaller but the 270 is good for elk too. I just shook my head and left.
When and in what article did Elmer say the 270 was an adequate coyote round? In the book I have he likes it for a NA plains games round like antelope and deer. I have never seen him writing much good about the 30-06, however.
When and in what article did Elmer say the 270 was an adequate coyote round? In the book I have he likes it for a NA plains games round like antelope and deer. I have never seen him writing much good about the 30-06, however.
The quote, though unsourced, appears to be, "... a damned adequate coyote rifle."
In truth, he liked the .270 WCF cartridge a lot more than he liked Jack O'Connor.
I’m slowing down these days, but if I were a bit more spry I might get a fast-twist .270 and go forth to slay. Truth be told, there are other easier options now in the same power range, the 6.5 PRC being the prime example. The main advantage of the .270 for me lies in all the nifty old rifles that exist. I currently have two, but neither has been out as yet. All my prior .270 work was performed with a pre-64 now living at my son’s place. He gets it out most years.
I’m slowing down these days, but if I were a bit more spry I might get a fast-twist .270 and go forth to slay. Truth be told, there are other easier options now in the same power range, the 6.5 PRC being the prime example. The main advantage of the .270 for me lies in all the nifty old rifles that exist. I currently have two, but neither has been out as yet. All my prior .270 work was performed with a pre-64 now living at my son’s place. He gets it out most years.
I like that it can shoot inexpensive 150 gr. Speer cup-n-core bullets at 2800 fps with precision and good performance out to 300 yards, and the high performance lighter 130/140 gr. 1-200 fps faster for the longer shots.
And bulk PPU range ammo, with its good brass, was not too long ago $14/20 box.
Surprised the 150 ABLR hasn’t been mentioned. With RL26 3000fps can generally be achieved, it’s BC isn’t all that far behind the 165 and according to ballistic calculators its trajectory and drift not much diff between the two. No need for a faster twist.
Casey
Not being married to any particular political party sure makes it a lot easier to look at the world more objectively... Having said that, MAGA.
Surprised the 150 ABLR hasn’t been mentioned. With RL26 3000fps can generally be achieved, it’s BC isn’t all that far behind the 165 and according to ballistic calculators its trajectory and drift not much diff between the two. No need for a faster twist.