NEW 6.5 WIN. LONG RANGE MAGNUM!!!

[FEENIX]

What's wrong with compressed loads?

I have to admit, I have some compressed loads that are very accurate and always very cautious about it.

Extracted from HODGDON ...

Compressed Loads
Normally a pistol or rifle shellcase is considered full, or 100% loading density, when the powder charge sits at the base of the bullet when the bullet is fully seated. It is possible with some powders and cartridges to increase the powder charge slightly above this point, such that when the bullet is seated it actually compresses the powder charge slightly. This condition is known as a compressed load.

Hodgdon notes in its reloading data if the subject charge is a compressed load. A full case, or lightly compressed charge is an ideal condition for creating loads with the most uniform velocities and pressures, and oftentimes, producing top accuracy.

 

[Dean2]

Compressed loads are fine for target work but I sure don't like them in a hunting load. Unless you crimp or use real heavy neck tension there is a good chance your bullet will push out, especially under recoil. The potential pressure fluctuations and accuracy implications of bullets being pushed can be quite significant. I agree with whoever said that if you are getting compressed to heavily compressed loads you are using the wrong powder. I would suggest you switch to one that doesn't exceed 100% with your case and bullet combination.

There are enough things that can go wrong hunting, bullets changing their COAL is not one I need to add to the equation.

 

[yorke-1]

Nothing as long as its not from shoving bullets into short fat cases that are too long for short actions

So a compressed load in 300 Win Mag using a 215 Berger is acceptable, same bullet used in a 300 WSM with a compressed load is a no go. Got it.

 

[Badgerclaw]

Compressed loads are fine for target work but I sure don't like them in a hunting load. Unless you crimp or use real heavy neck tension there is a good chance your bullet will push out, especially under recoil. The potential pressure fluctuations and accuracy implications of bullets being pushed can be quite significant. I agree with whoever said that if you are getting compressed to heavily compressed loads you are using the wrong powder. I would suggest you switch to one that doesn't exceed 100% with your case and bullet combination.

There are enough things that can go wrong hunting, bullets changing their COAL is not one I need to add to the equation.

Never heard that one before. I guess I'll take one of my 7 rem compressed hunting loads, and put it in the magazine of my 45-70 while I fire a few rounds. Then check the length again

 

[Barrelnut]

I have experienced good SD with compressed loads. If scrunching too much powder though I have had problems with getting inconsistent seating depth when seating the bullet and even some runout issues.

Think there is fine line between compressed and overly compressed.

 

[FEENIX]

I have experienced good SD with compressed loads. If scrunching too much powder though I have had problems with getting inconsistent seating depth when seating the bullet and even some runout issues.

Think there is fine line between compressed and overly compressed.

Agreed!

 

[okie man]

So a compressed load in 300 Win Mag using a 215 Berger is acceptable, same bullet used in a 300 WSM with a compressed load is a no go. Got it.

if it hinders performance because too much bullet in the case

 

[Tex LR]

The cartridge I'm talking about has actually been around since 1958. It's a 7mm rem mag case necked down to 6.5 caliber... Some older members might see where I'm going with this.

I'm just curious, with everybody on here talking 6.5's, how has the 264 win mag not come up in more threads?

I understand back in the 1950's it was built to be a flat shooting high performance round, and it was, and still is, but side by side with the popular cartridges of the time, 30-06, 270 win, and 4 years later the 7mm rem mag, it was considered to be a barrel burner. So it faded from memory and was eclipsed by other high performance cartridges that are easier on barrels.

Back to my original question. Today we have the 6.5 prc, 26 nosler, 6.5x300 weatherby, 6.5x300win, and more wildcats than I can list. People are excited when they shoot out a barrel! Now they can try a new brand: proof, bartlien, brux, krieger, and share their experience with all their buddies. So why is the 264 not back on the radar? Because it's not new and shiny?

I'm hoping some old timer has recently looked in the very back corner of their safe, pulled out the old winchester m70 264, whiped the dust off and compared the old trusty stead next to the new flat shooting 6.5's of 2018.

I really enjoy this topic. Been shooting a 264 Win for years now. Owned several and still have a couple. You reminded me of a morning at the range about 5 years back. A friend of mine with a newer model "tactical" rifle was giving me a hard time about my "antique" Pre 64 model 70. We decided to settle it for $20 with a cold barrel shoot at 200 yards, closest to the bullseye, single shot. I won the $20 and left a lot of folks very surprised. Fun times. Great cartridge. Have other 6.5's but always gravitate back to my 264 Win's.

 

[Edd]

You guys talking about compressing powder, how many grains are you compressing in what size case?

 

[Barrelnut]

Rl22, H4350, and IMR4831 will get you there in a 300 WSM with 180s
Retumbo will get you there in a 25-06 with 110~120s
RL26 in a 6.5 CM with 140s EASY

 

[yorke-1]

You guys talking about compressing powder, how many grains are you compressing in what size case?

I just dug through my notes from back when I had a 264 Win Mag and I used a load of 73.2gr Retumbo with a 140gr Partition and I got 3160 fps from a 26" barrel. I have in my notes that it was a compressed charge and when I punched it into quickload it comes up with a 104% fill. I typically get very good and often times my best loads with 100% case fill to light/moderate compression.

 

[WildRose]

What's wrong with compressed loads?

One problem you get into with compressed loads is that frequently the bullets will "walk" out over time especially if you are going for minimal neck tension.

I've never had a need for compressed loads anyhow unless I was using too slow of a powder to start with or loading well beyond recommended max charge.

There is one advantage to them though and that is that you'll get cleaner, slower burns from compressed loads and another is that it's impossible to get them to flash creating an over pressure problem that you can get into with too little case fill.

 

[Dean2]

Never heard that one before. I guess I'll take one of my 7 rem compressed hunting loads, and put it in the magazine of my 45-70 while I fire a few rounds. Then check the length again

Try loading some med to heavily compressed loads with .002 neck tension. Measure COAL. Leave them sit for a couple of months and remeasure the COAL. I will bet you find they have walked out on their own, just from the pressure of the powder under them. Same effect happens under recoil, just quicker. Not a problem single loading for target shooting and using ammo loaded that day or the night before.

 

[KyCarl]

Mudrunner..MK Ultra? really? That was an illegal CIA mind control experiment
Started in the late 50's! It used LSD and BZ along with other hallucinogens on US and Canadian citizens!.. I hardly think an ad campaign sinks to that level??
https://en.wikipedia.org/wiki/Project_MKUltra