Home Forums Hunting & Shooting Ask The Gunwriters What premium bullet/load to get .270 Win 140 gr. to 3,100 fps safely with 24" barrel?

I finally used up my supply of old factory Federal "High Energy" 140 gr. TBBCs that chrono'ed 3,078-3,102 fps in my 24" model 70. I've had great success with these on all kinds of big game.

Would you have any suggestions on how to replicate 3,100-ish fps with Northfork 140gr or 140gr TSX? If so, what velocities, bullet, which powders?

I've tried H4350 up to 54.0 gr with the TSX but only get around 2955fps; with no obvious signs of pressure. This is the max listed in the Barnes reloading manual. Barnes is able to get 3,030fps.

you may never get there with whats available to us.

And it won't matter anyway. 100 fps isn't enough to sweat over. I"d take the 2950 and be just fine as long as its accurate enough.

Run the drops/drifts and you'll find unless you are running Long shots, it won't matter enough to worry about.

That being said the way I get to most MV... odd rifling, not even. chamber for the loaded round, IE cut to match. Coated bullet and coated barrel with something... nitride,ceramic, moly etc... and high energy type powders like Viht N500 series.

You might get there with H4831 and 140gr NBT's, might have to push it a bit....

Reloder 22 is your best bet.

Try working up to 63 grains of H-1000.

I agree.
You'll probably have to go beyond book max to get there though. It took me 59.5 grains to hit 3050 with no pressure signs.

I've used RE22 with a 130TTSX in my 270. Got speeds to 3,200 without pressure signs, but had horizontal stringing. I could not cure the horizontal stringing until I changed powders.

My load was over 'book' but Barnes seem to tolerate going over book.

RE22 or VV-N560.

I have a longer barrel than you have, but I got 3140 FPS with 140 TSX with the 63 grain H-1000 load that I posted above.
Your rifle may or may not get close to the speed that mine rifle got, all you can do is give it a try.

Barnes TTSX would probably get close. The ttsx is .005 less diameter than most bullets and the bullet has the rings to give less bearing surface. Barnes designs the ttsx this way so they can achieve higher velocity without pressure.

Shod

Two other powders you might try, if you can find any, are Accurate MagPro and Ramshot Magnum. Both are spherical powders, so more can fit inside a case than with extruded powders, helpful with long bullets. I doubt you'll get 3100 in a 24" barrel, but I've pushed 140's to practically that with MagPro in a 26" barrel.

I wouldn't be too concerned about MV...

The performance that you are seeing from your favorite load is mostly due to the excellent older TBBC bullet, that is a stellar performer at any velocity.

If you load the same bullet to the same velocity you'll achieve the same performance benefits, and it won't matter if the bullet is moving 100fps slower.

59.7 of RL-22 gets 3030 from my wife's 270 Win with 140 gr Hornady SST's fired out of a Weatherby Vanguard with a 24 inch barrel. This is the top load listed in Hornady's loading manual. I worked up to this amount and it shot acceptable so I went with it. She bagged an Elk and Deer with combo this year.

TSX or Hornady BTSP (not really a "premium" bullet, but close enough") & RL-22 or Norma MRP.

MM

Magpro
7828ssc
H1000

Can't be done within SAAMI pressure limits.

Why would you risk potential harm to yourself and/or damage to your firearm over 100fps or so that really doesn't matter in hunting situations?

I'm with Mule Deer: try to get some MagPro or Ramshot Magnum. These two seem to be the best options in my mind, with H1000 a close third. Accuracy is going to add more to your confidence in the ammo than another 100 fps.

Get ya a 270 Wby Mag. It'll do 3100 with nary a hitch. Only messing with ya.

On topic. You're going to be hard pressed to hit 3100 with a 140 from an WCF.

Another powder that MIGHT do it in a longer barrel is RL25. This gave me 3200 fps with a Barnes 130 XLC and the Barnes manual max load in a 22" barrel.