223 how much jump is too much? 80grain ncc

[chuckbuster243]

How much jump is to much for a 80 grain nosler cc? Throat in my rifle is way too long and cant set it back.Gonna be a little while before I can afford another barrel. How much bullet in the neck will work? Just trying to wring last bit of life out of it and never shot 80's only 77's. Thanks, Matt

 

[chuckbuster243]

The Barrel is actually a 7 twist. That was the original plan. But when money and components got scarce resorted back to what I had which was a bunch of 77 grain. The barrel shot them great but Its a looong jump with those and I would rather shoot in mag fed rifles so got some 80"s. Matt

 

[Longtrain]

I love Nosler 80's in my 223AI. I jump them .025, hammers. Don't tell anyone, these out-shoot Sierras by long shot and much cheaper too. Their LTO is much more consistant then SMK's.

 

[boltman223]

I love Nosler 80's in my 223AI. I jump them .025, hammers. Don't tell anyone, these out-shoot Sierras by long shot and much cheaper too. Their LTO is much more consistant then SMK's.

Is the LTO similar to the smk's?

 

[boltman223]

How much jump is to much for a 80 grain nosler cc? Throat in my rifle is way too long and cant set it back.Gonna be a little while before I can afford another barrel. How much bullet in the neck will work? Just trying to wring last bit of life out of it and never shot 80's only 77's. Thanks, Matt

The way I see it is it's only too much jump if they don't shoot good, but then again maybe the jump isn't enough.

I shoot the 80 smk's in my 223 that has .169 freebore. The neck only has about .115 of purchase on the bullet. They jump roughly .03 which of course isn't much.

I wouldn't worry about how much jump they have as long as they shoot good.

 

[Longtrain]

SMKs are not a match to Nosler CC's, I don't have the numbers at this instant, but I can check. SMK LTO's vary alot, they shoot fine, IF you measure them and adjust accordingly. I shoot Nosler CC's in 22 & 6mm, they hammer, if you, like any bullet find their sweet spot. Bullet quality IMO rests on their jacket quality, the LTO measurement consistancy and their weight. JLK's are almost perfect in all areas, Berger's are very consistant, Sierra's good if you baby them, for the money Nosler's are excellent, but have a smaller piece of the market, but worth looking at.

 

[1lnbrdg]

The Nosler CC's have always worked well for me except for 1 lot of 77gr. So far, haven't found any of them that didn't like to jump, usually a lot.

80gr ~.040 to .080 to find the sweet spot usually.

 

[Quickoz]

Im jumping 80gr SMK about 60 thou and they load hammers.

 

[rifleman700]

How much jump is to much for a 80 grain nosler cc? Throat in my rifle is way too long and cant set it back.Gonna be a little while before I can afford another barrel. How much bullet in the neck will work? Just trying to wring last bit of life out of it and never shot 80's only 77's. Thanks, Matt

You have answered some of your questions yourself.

Establish your OAL first by deciding what is the minimum amount of bearing surface / neck contact you are willing to live with. Some of this will depend on neck tension. A FL non bushing die may be better here.

With OAL starting point established begin your powder charge testing.

With powder charge established, now start seating depth testing by seating deeper in the case in .005" increments until you see a good solid seating depth window. I think you will be surprised at how well the bullet will shoot even when jumped a long way.