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To: teevee who wrote (737900)1/14/2021 11:15:55 AM
From: Shoot1st  Read Replies (2) | Respond to of 793843
 
Hornady has come a long way over the last 10 or so years. They make some of the most consistently accurate ammo and bullets available at reasonable prices. They seem to perform better than the Sierra Match King bullets.

When you make your own ammo you can weigh the cases for a consistent batch, weigh the bullets, weigh the powder, choose the powder, choose and seat the primers, set the case length to chamber specs, set the overall length for distance to the rifling, crimp the bullets to your liking, check for concentricity, resize the case for full length, neck or just a shoulder bump......all of these things add to potential accuracy.

In the old days factory ammo was pretty much crap unless you bought the best stuff like Weatherby, Norma, Eley,

The traditional Winchester and Remington was good up to about 200 yards and then the groups opened to basketball size.

My 1st 26/06 made by Remington loaded with IMR 4831, Winchester cases, neck sized, 90 gr. sierra hpbt set to the lands would group 3/8 inch for 5 shots at 100 yards. No factory ammo on the planet could do that in the 70's or 80's.

It's made much better today. But, you pay 4 times the price over handloads.

All guns are a bit different in tolerances and often you have to try several ammo's to match the twist rate of the barrel, the headspace, magazine depth and overall length. Probably the most important issue is twist rate. The twist rate determines the weight and length of the actual bullet and how it will stabilize through the barrel when fired. The 140 gr. that your buddy uses likely matches well to the twist rate where if he were shooting a 110 or 130 gr. bullet it might not stabilize as well and the groups will open up.

Picture the quarterback moving his hand to several locations on the ball. The right grip and he gets a great long range spiral, the wrong grip and he gets the ball end over end out to 10 yards.

Shootie



To: teevee who wrote (737900)1/14/2021 12:13:10 PM
From: Shoot1st  Respond to of 793843
 
If your friend is reloading suggest he try either DuPont (IMR) 4831 or Hodgens 4831 for his powder and either Hornady, Sierra or Berger 130 to140 gr. bullets

The .270 case is the same case as the 25/06, 280 rem. and 30/06. Only the neck size is different. This powder seems to max the case and has uniform burn.

He should also set the overall length to the same as the factory load that he now uses. This might be a sweet spot for his rifle.

Although the 130 gr bullet is the typical load for the .270 in US, the Euro rifles typically lean towards heavier bullets and therefore the twist rate is faster. This might be why his Sako favors the 140 grain. It might also do really well with the 150 gr. if he hunts larger game.

I think Hornady uses a proprietary powder and that might be the reason for the velocity he gets. This powder is not for general reloading as it is in house only. At least for now.

Shootie