In this video I show some incredible ballistics out of the 257 Weatherby magnum. I'm using a 101 gr Barnes LRX with an average velocity of 3814 FPS. Hope you enjoy the video!
❤257WB. I run my weatherby cold.and clean. Then cold and fouled . 2 shot hunting rig. Try development with 2 shot groups. 4 shoots total. The 3 rould in your 3 shot group will always throw you off, hyper magnum foul qiuck changing your P.O.impact. I like to run my rig cold and clean. Zero fornthe first 2 shots. I know the 3 shot will be higher presure then the first2 and i adjust from there.
With the 135 in the 257 WBY you might try US 869 or the old H 870 if you have some ( it has been discontinued ) also if you have any WC 860 ( surplus 50 BMG powder ) same burn rate as H 870 , use starting load and work up ! Thanks for all your hard work for us !…….
Awesome little round, definitely hits above its weight. Hey been wondering what type of ballistics you could get with the 375 ruger loading the 250gr cx/gmx Hornady bullets, 260gr Nosler accbound, or even 270gr sp-rn out of a 23in barrel. I’m thinking 2800-2950fps? Feel like it’s a very underrated round especially for shooting out to say 400-500 yards, similar ballistics to a 30-06 firing 165-180 gr bullets? Especially being a standard length action and more efficient then 375h&h. Seen you do some content on it in videos but can’t find much anywhere else, thanks!
Could you tell me what your load is , I have a Ruger NO 1 with a 29 in Lilga barrel. I have been using WC 860 powder and can’t quite get that velocity . Would be interested in comparing load data with you ! Thanks .
Lightning, at speeds like that with a copper bullet nothing in north America is walking away. 500 and in that thing will hit like thors hammer. I wouldn't worry about the twist rate with that data.
@@ReloadingWeatherby It’s one if them but they are not tac drivers. I’d rather shoot a slower caliber that is way more accurate. How many competitive competition and target shooters shoot Wheatherby’s?
@@tripplebeards3427 I know. Accuracy is very disappointing w this caliber. Great for speed but at that speed I'd use it for head shots for harvesting where you don't have the luxury to range. However w bad accuracy I can't do those headshots. So I don't know where it's niche is.
@@tripplebeards3427you’re wrong in a way. My 257 will shoot a five shot group all touching. Now out to 1200 yards it may be different with brass inconsistency etc bc you can’t get lapua brass but to say they aren’t tac drivers is simply incorrect. All the stuff you may have read about the shoulder and the unnecessary belt reducing velocity is BS and the people saying that either shouldn’t be talking or they know better and continue to flap their gums
No doubt the 257 is a fast flat shooting caliber but flattest? No and I say that as a 257 Weatherby fan. I have a 257 Weatherby and 25/06 AI. The AI will run with the Weatherby on lighter bullets but the Weatherby edges it out a bit. My 25/06 AI will shoot flatter at longer ranges with a 135 grain vld. Would love too see Weatherby offer a 1/7.5 twist or 1/8 to handle heavier bullets with higher vld’s I am not sure why Weatherby has not adopted a faster twist barrel with the heavier vld bullets that have come to the market?
Try H1000. I am running Barnes 100 grainers at an average chronographed velocity at 3663 FPS with no pressure signs and excellent accuracy. I would have liked to have seen it compared to the .26 Nosler. I am running Barnes 120 Grain Barnes chronographed at an average velocity of 3521 FPS with excellent accuracy.
That's a real Lazer beem for sure. I have no idea how you can get that much speed I wonder how the 95gr tipped hammer would compare. I try to limit myself to under 500yrds, and along with flatness I really look at the retained velocity numbers, because some bullets don't open so well at low speed. I love your idea about using staball hd. I picked up a couple pounds of it this summer, as well as some Vihtavuori 570 to try in my 257, 6.5x300, and 300 wbys this winter. I'm warning you now. If you get a 6.5x300, you will become addicted. I've used quite a few calibers and killed quite a bit of game, and that 6.5x300 hits animals harder than anything I've seen. Just this year I've had an antelope and a deer drop in their tracks from poor hits. The antelope was a classic gut shot and it went straight down. It did stand back up, but it wasn't going nowhere. Those swift scirocco bullets might be a factor as well. I bet the 100gr .257 ones would be pretty awesome in the 257wby as well if you can get accuracy. Of the bonded bullets, they seem to have the best bc. Thanks for the great content.
I have a 26 inch barrel. I'm only using 70.5 gr of RL-22. It's my brass... I bought factory seconds ammo from Weatherby. Turns out I get way faster velocities with that brass than other brass. With my other brass I'm getting 3600 FPS with this load.
@ReloadingWeatherby really. I'd of never guessed that not ever.. I've shot a bunch of the brass that came with the weatherby select ammo. Is that the same type? I've only heard of factory second bullets. To be fair I haven't pushed mine but in the book I'm at the middle of capacity. I just didn't think I'd get much more out of it. Did you struggle with accuracy going faster? Most of my guns do. But all 24" barrel
@@djfogg6185 On average the faster I go the better the accuracy... Not always the case though. I just did a max load of RL-22 for 110 gr Accubond and I'm getting half MOA with it.
@@ReloadingWeatherby Then I must have missed something. The last data I remember seeing from you was 71.5 grains and ~3650 fps with this bullet. Suddenly getting 150+ fps more is not a small feat!
@georgejohnsmith I should try that... The original brass I used to build up the load was older brass made from Norma. I switched to newer Weatherby brass and I don't believe Norma makes it anymore.
It took us under 50 rounds to work up a load for our 6.5 x 300 WBY ( 140 gr with 84 grs of WC 860 215 Fed primer = 3400 fps ) re zeroing and hunting every year ( 12 to 15 rounds a year ) for 15 years is under 275 rounds . Hardly enough to were out the barrel !
@@thomasdaum1927 Finally...someone besides me did the math, and knows that barrel burner business is pretty much a dead end argument for non-competive shooters. Hardly a reason to balk at the many benefits of purchasing high velocity/magnum rifles, no matter how many uninformed parroting comments are made on RU-vid to the contrary! 👍🏿👍🏿
Quite impressed with the ES. Harder to get such low ES as you get higher in velocities too. Think the 28 Nos maybe edges the flatness as that 180 is pretty heavy for caliber. I'd venture to guess that harmonics might be keeping groupings around that MOA mark. When you have the ES #s that would lend well to seeing really tight accuracy.
The wind drift out of your low bc bullet would be, several feet more than several of the other cartridges like 7PRC, which would make the PRC BETTER. Now the RL series of powder would be much better than 7828 for your pressure issues. I am looking forward to your results with the bigger and higher bc bullets.
33 inch advantage for the 7mm PRC over the 257 Weatherby. Yep, obviously the 7mm PRC is a better long distance cartridge. To be fair... my thumbnail this was about trajectory.
My 257 roy is my absolute favorite. I love 100 grain ttsx. May have to try the 101s. I chronoed the ttsx factory ammo and was getting averaging 3430 fps with a 24 inch barrel. I'm gonna start relaxing for it, hoping to see somewhere close to 3600.
You have to let those vanguard barrels cool down after the first 2 shots I was having that problem with my 300wby and same thing first 2 touching 3rd down and right. Let it cool after the 2nd shot 3rd one was right in with the other 2
I never reloaded ammo for 257 Weatherby mag. I did have the pleasure of sighting in an old Mark V back in 1984 for a former boss. He pulled me off the job because he knew i was a gun nut . It had a 4x Ziese scope mounted on it. The best clearest glass I ever looked through. Put my 3x9 Leupold to shame . I could easily see the bullt holes on paper at a hundred yards. It had moa accuracy shooting with the factory ammo . The odd thing , the ammo had a 117 gr round nose bullet. Had a tiger on the cardbord ammo box. Did not make sense with such a hot rod like 257 Weatherby mag. The Weatherby rifle was won in a poker game by my boss. It came from a south Texas rancher oil tycoon. I will not mention his name. He was somewhat notorious. Probably dead now. Only wealthy hunters had Weatherby rifles back in my youth. Blue collor folks had Remingtons and Winchesters back then. I miss those days.
@thelittledetailscr7231 no , just pulled me off the job to sight in his Weatherby Mark V . He was not just my boss. He was the owner of the company I worked for.
My old boss used to do something similar. When we were slow (commercial construction), he’d pay me to come over to his house and clean his guns. He has a nice collection, and I thoroughly enjoy cleaning guns; it’s therapeutic for me. Worked out well! He was really great with that kind of stuff. We were rarely slow, but when we were, he always managed to find stuff for the guys to do, if they wanted to do it. Might’ve been yard work at one of his rental properties or his daughters house, or painting fences, or any other sort of small odd job. I’ve since left that industry, but I was with that company for 10 years straight; never laid off. That’s super rare in commercial construction.
