Home Forums Reloading Big Game Rifles 264 Win Mag Loads???

Velocity?

Looking at Loaddata.com, that load should run around 3,200 fps.

I've read that the 120 NBT is tougher than older BT's, which had a less that stellar reputation for holding together on game, particularly when driven fast.

BT's are known for accuracy.

Question: Is this a good bullet choice for WT's, etc. at 3,200 fps.?

I'm asking, because I really don't know.

DF

Based on Hodgdon reloading data a quick calculation puts Freddy at about 3110fps. But then I don't know what the bullet is traveling at. (LOL) If he loaded at max 64.6gr it would be 3254fps.

What's the consensus, 120 gr. NBT at 3,150-3,200 fps on WT's?

120's at 3,450+, I'm mono-metal all the way.

DF

But then 67gr of H4831 drives a 130gr JLK at 3249fps with no signs of pressure. but use caution I worked up to it.

Mine flings 120 TTSX's at 3,350. I want to say Retumbo.

I am pretty much mirroring this with my M70/26" Pac Nor. Dancing around 3350-3400 with 69.0gr RS Magnum which is about a max load according to Ramshot's online data. Currently shooting 0.030" off the lands and seeing 1.5" at 200yds. Nothing real in-depth on the load development, just something I threw together right before season opener last year. Going to play with seating depth a little and see what happens this summer...just for schits and giggles.

You may want to try even more jump, say .05" or even more.

DF

Yep, planned to move back in 0.010-015" increments and see what happened.

If I had to guess, based on my experience, you're gonna like big jump better than little jump...

But, I await your report.

That's how we learn.

DF

I am not the guy who is giving you a bad time about optics, Is he a Leopold kind of guy, I am a Burris and recently become a Vortex fan, I don't think there is a better scope in it's price range.

These are the old bt's, they came in a red box that says Solid base ballistic tip, they come in 100 to a box. I have about ten left, when I get a chance I will run them through the chrony. I bought them to use in my 6.5 Jap, this is the first time I shot them in my 264, I just tried them see how my new scope works, did not want to use my supply of Partitions and ttsx, I hope they are as accurate as the Noslers.

Those bullets are so old they might have mold. I used those to in .224 diameter to kill a doe and a buck a few years ago.

rcamuglia,

Have you seen any signs of pressure problems with the load you are shooting?

I shoot NBT out of a 300 WM. 165's with 79 Gr of RL 22. Chronos at 3230. That being said I shot a mule deer at 500 yards with this load. Broke the front shoulder - bullet exploded and had to put rohnd #2 in the ribcage to anchor him down. I have switched to AB's which believe it or not chrono at 100 fps slower even though they have the same BC...

Shot a 240 lb whitetail with my 264 win mag and a 130 accubond and the bullet hit the shoulder and bounced back creating a massive wound and ran down the hide. Found it intact and weighing 90 gr at his back knee - Guess im saying from my experience that the AB holds together better than the NBT....

No.

Realize that barrels and chambers differ.

A barrel with tighter tolerances in groove/land diameter will behave differently than others that may be more generous. Number of lands and gloves will also effect when you may find pressure.

Chambers with generous throats will behave differently than chambers that are short-throated. Etc...

With the same lot of powder in my old barrel that was worn, I was shooting 77 grains of RL-33 and the 140 VLD. Bullet bearing surface has an affect too.

My new barrel topped out at 72.5 grains at winter hunting temperatures (40°)

I'm shooting 72 grains and I have no problems. RL 33 is definitely temperature sensitive and I won't be shooting it at 80°+

This is the reason I hang out here. Great information. Thank you.

62 grains of imr 7828
140 gr sierra
3075 fps
Win mag primer


Consistent in 2 of my 264s

Crank: have you had any experience with how the 140 Sierra reacts when it contacts fur?