Rock Chucker press

[kombayotch]

With the FL die, it shouldn't hurt you as much during sizing. During seating, it might. On my friend's press, he never could get rid of the 0.003-0.005" runout "flyers" with that kick present. He was using the Competition Neck sizer.

With my old Rock Chucker and the FL die, I still had quite a few 0.0025" flyers with the occasional 0.003". Not bad, but as I said, nothing to brag about. With the Co-Ax, a flyer is 0.0015", with an occasional 0.002". The majority of the rounds are under 0.001" of runout (even better results using the collet die using it in "steps"). This all assumes your brass has uniform neck thickness and is annealed, of course. Once the brass gets hard, everything goes to s**t regardless of which press and die you use.

Look, I'm sure you'll have fine results with the Rock Chucker and quality dies. My point was that the Rock Chucker is not "the best" press out there for precision reloading. I get annoyed when people pump it as the best, especially when they don't measure anything other than the COAL of their rounds.

 

[acrashb]

The LNL AP I had briefly was horrendous... still want to try a 650.

As we've discussed, my LNL AP is rock-solid, and has less variation than comparable progressives (because there is no shellplate to wobble/flop around - the same would apply to a 1050 with its fixed toolhead, although I haven't measured one). I think you got a bad one, as there is no other indication from users that the rams are a loose fit.

.223 measurements from a LNL AP, done in a single pass (bear in mind this was bashed-up brass, reloaded several times, from an AR upper): Runout average .0017”, OAL standard deviation using a Sinclair comparator is 0.0007” (using Hdy 75gr HPBT). Numbers would be better with different techniques on the same press.

 

[kombayotch]

Yes, and I accept that there may be a few lemons that make it past QC. However, you've seen what mine looked like, that ram was loose as hell. The fact that Hornady did nothing about it is unacceptable given what they charge for that press. That has really soured my view of Hornady. Buying their press is a crap shoot if they won't fix problems like that. At least RCBS seems to be replacing the Rock Chuckers with the kick.

 

[acrashb]

The fact that Hornady did nothing about it is unacceptable given what they charge for that press.

Agreed; they should have offered up service just like that. It was really loose.

 

[pa]

Was the Rock Chucker Supreme 100% made in the USA before moving the casting to China or was the casting made elsewhere? (Taiwan,Korea,USA?)
I still think a lot of the Made in China metalwork is still pretty rough.

 

[Johnny G1]

If your shootin iron is as good as your loading press why the hell worry about 1/2 a thou runout, I just don't understand half of these post, what the hell are you shooting at , a rock on the moon, a factory round will kill just as good. Just my thoughts.

 

[bearhunter]

Johnny G1 Please don't get into bench rest or F Class shooting. It will ruin your perfectly reasonable perspective forever. You will get apoplexy when you can't hit the blond hair on the left side of a gnats testicle at 100m consistantly and start tearing down all of your equipment until you find the reason.

Accuracy becomes an all powerful addiction and just ordinary fun guns are not going to give you a decent high.

 

[Duck_Hunter]

Accuracy becomes an all powerful addiction and just ordinary fun guns are not going to give you a decent high.

Nope, but imagine how boring the internet would be if we all shot customs

 

[ruger22]

Forster Co-ax....us $$$$$$ from cabellas

Forster Co-Ax Press
The design of the linkage and pivots eliminates torque on the head of the press and produces such power that you can size your cases full-length by operating the handle with just one finger. Includes S Shellholder Jaws that fit 106 cartridges from .17 Rem. to .458 Win. Mag. Item: IK 211032
$239.99

 

[ruger22]

With the FL die, it shouldn't hurt you as much during sizing. During seating, it might. On my friend's press, he never could get rid of the 0.003-0.005"

what does this mean at 100 meters?

 

[Fassteel]

With the FL die, it shouldn't hurt you as much during sizing. During seating, it might. On my friend's press, he never could get rid of the 0.003-0.005"

what does this mean at 100 meters?

It means they won't be going in to the same hole. FS

 

[kombayotch]

Not reliably anyway...

If the press is solid, the dies are good (also clean!), the other usual culprits for runout are unclean necks or that the brass needs to be annealed. Insufficient lube during sizing can also cause it. This assumes that the neck thickness is pretty uniform. If it isn't, neck turning can help too.

There is no universal solution, each situation is different. If you have the proper instruments to measure things, you can diagnose the cause and determine the easiest way to correct it... or just take the shotgun approach as some do.

 

[Seabass]

I just bought a RCBS Rock Chucker Supreme Master kit and I heard that the press is now made in China what about the quality?

It is a good press, simple as that. I reload several calibers that shoot under 100yrds with this set up. Plain and simple it works. For the average shooter its all you need.

I don't know about competive shooting, (other than cowboy action, now thats fun!!) but it sounds too anal for me.

Cheers

Seabass