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RCBS Rock Chucker Supreme vs. Summit?

222Jim

Silver $$ Contributor
Looking to replace an older press and can't decide upon RCBS Supreme vs. Summit.

Mostly loading .222, .22-250, and .308 for longer range target/bench and varmint. Concerned with consistency, in particular run-out and base-to-ogive consistency.

Anybody have data to support Supreme vs. Summit? Or an informed opinion?
 
The summit sucks, in other words. I agree. Check out ultimate reloader for an in-depth review. The summit simply is not a good press.

I have a MEC Marksmen that I really like a lot. I do not use my RCBS rockchucker and consider the MEC superior.
 
The summit sucks, in other words. I agree. Check out ultimate reloader for an in-depth review. The summit simply is not a good press.

I have a MEC Marksmen that I really like a lot. I do not use my RCBS rockchucker and consider the MEC superior.
Thanks. I'll look into Mec Marksman.
 
As a counterpoint to all the negative nancy clones here, I find the Summit perfectly adequate for my needs. Of course it isn’t a Rockchucker, anyone who spends even two minutes researching before they buy knows this and would not buy it as a replacement. I moved four years ago, and instead of setting up my Rockchucker in limited space I set up the old Reloader Special 5. As it turned out it did every thing I needed it to do, including mild case forming. When, after 40 years of banging my knees on the RC and RS5 under the bench, I tried the Summit. It does everything the RS5 does for me, FL sizing takes the same effort and I do get less runout on most rifle cartridges than I got on the O presses. Of course I don’t use hair tonic or lard as a sizing lube….

I don’t do heavy duty case forming anymore, but from .45 ACP to .338 Magnum the cases full length size just fine. I enjoy the more open work area, the free space under the bench, the improved concentricity and yes the novelty of the design. I did install one of the linkage pins to replace two bolts, RCBS did err when they modified the Summit for .50 BMG dies and weakened the handle bracket. The pin reduces the risk of breakage, which was a rare occurrence.

The Summit isn’t for everyone, especially those who can’t read, follow directions or fail to understand how simple things like nuts and washers are supposed to work. In many reviews I read “complaints” from fools who think that the linkage bolts weren’t properly tightened at the factory, in complete ignorance of how wave washers are supposed to work. They are there to allow the die holder to self-align to the shell holder, improving concentricity like the sainted Forster Co-Ax press does. They complain about the “slop”, see above. They don’t tighten the operating handle, then complain that the press broke. They expect it to be a Rockchucker replacement…foolish.

By all means get a more traditional O press if you need RC power, don’t mind the press hanging down under the bench or are not comfortable with change. But to repeat the commonly heard line that the Summit is only good for crimping bullet seating simply confirms that the speaker either probably hasn’t the knowledge to properly setup and use the press, is afraid of change, or has requirements that exceed the Summit’s capabilities. Different opinions are usually welcome here.




.
 
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Buy the Rock Chucker, much more solid press and does not have the looseness that Summit does in it's ram set up.
The looseness isnt even an issue to me- i like it that way. Its the lack of leverage and camover that i cant handle, and the extra long handle doesnt help that
 
As a counterpoint to all the negative nancy clones here, I find the Summit perfectly adequate for my needs. Of course it isn’t a Rockchucker, anyone who spends even two minutes researching before they buy knows this and would not buy it as a replacement. I moved four years ago, and instead of setting up my Rockchucker in limited space I set up the old Reloader Special 5. As it turned out it did every thing I needed it to do, including mild case forming. When, after 40 years of banging my knees on the RC and RS5 under the bench, I tried the Summit. It does everything the RS5 does for me, FL sizing takes the same effort and I do get less runout on most rifle cartridges than I got on the O presses. Of course I don’t use hair tonic or lard as a sizing lube….

I don’t do heavy duty case forming anymore, but from .45 ACP to .338 Magnum the cases full length size just fine. I enjoy the more open work area, the free space under the bench, the improved concentricity and yes the novelty of the design. I did install one of the linkage pins to replace two bolts, RCBS did err when they modified the Summit for .50 BMG dies and weakened the handle bracket. The pin reduces the risk of breakage, which was a rare occurrence.

The Summit isn’t for everyone, especially those who can’t read, follow directions or fail to understand how simple things like nuts and washers are supposed to work. In many reviews I read “complaints” from fools who think that the linkage bolts weren’t properly tightened at the factory, in complete ignorance of how wave washers are supposed to work. They are there to allow the die holder to self-align to the shell holder, improving concentricity like the sainted Forster Co-Ax press does. They complain about the “slop”, see above. They don’t tighten the operating handle, then complain that the press broke. They expect it to be a Rockchucker replacement…foolish.

By all means get a more traditional O press if you need RC power, don’t mind the press hanging down under the bench or are not comfortable with change. But to repeat the commonly heard line that the Summit is only good for crimping bullet seating simply confirms that the speaker either probably hasn’t the knowledge to properly setup and use the press, is afraid of change, or has requirements that exceed the Summit’s capabilities. Different opinions are usually welcome here.




.
Thanks for the lengthy reply. I appreciate it.

I have been using a RCBS Ammomaster I bought for .30-06 and .338. I plan my loads carefully (QuickLoad and every manual available), measure everything (OnTarget TDS, A&D-120i balance, Mitutoyo Caliper and Ball Micromerter), record and analyze everything (15 MB Excel spreadsheet, and growing), and am down to 8-shot groups that average 0.25 MOA shot at 200 meters with my .222 Remington. Did I mention I'm a semi-retired engineer?

I've seen with my RCBS Ammomaster my pre-turned necks are running 0.001" - 0.002" run-out, but once turned (Century 21) and neck sized using a mandrel (again Century 21) after under-sizing them with an RCBS Neck Bushing), they are at ~0.005 run-out. That's independent of what neck-sizing bushing I use or what size I open them up to. FYI, my Base-to-Ogive are always +/-0.0005 inch, so I'm happy with that.

Long story short, I watched the Ultimate Reloader YouTube press comparison, read the accompanying article and plotted out the results. That and more research has me stuck between the RCBS Summit and Supreme as my #1 and #2 choice, with the Mec Marksman #3.

Any further insights and opinions are welcome.
https://www.googleadservices.com/pa...=2ahUKEwixruGkwbL1AhXYHjQIHQNVBeAQ0Qx6BAgEEAE
 
Any further insights and opinions are welcome.
The link was for the Mitutoyo 6" calipers, are you also looking for opinions on those calipers?
Those are an heirloom quality set. Two thumbs up on performance and quality.
(I would still recommend you get a cheap set for daily use and only break these out when the work is more important. Don't leave them out where little ones and schleprocks will drop them for you.)
 
The link was for the Mitutoyo 6" calipers, are you also looking for opinions on those calipers?
Those are an heirloom quality set. Two thumbs up on performance and quality.
(I would still recommend you get a cheap set for daily use and only break these out when the work is more important. Don't leave them out where little ones and schleprocks will drop them for you.)
I've actually got the Mitutoyo calipers (ad their ball micrometer). Quoted them purely to indicate quality of press I'm looking for. And yes....the calipers are stored in their case in my locked reloading room away from the curious and clumsy!
 
I have both rock chucker and summit and 2 other presses. I have really good results with all of them and wouldn’t say the rock chucker is any better than the summit. I take my summit to the range for fine tune seating as it is stable with just a couple cheap plastic C clamps. It floats so if runout is a problem then it’s user/die error in my opinion.
 
I have both rock chucker and summit and 2 other presses. I have really good results with all of them and wouldn’t say the rock chucker is any better than the summit. I take my summit to the range for fine tune seating as it is stable with just a couple cheap plastic C clamps. It floats so if runout is a problem then it’s user/die error in my opinion.
Thanks. The other two presses......either a Mec Marksman?
 
Jim, what is your budget for the press? The reason I say this is I own many RCBS’s, from the partner to the RC Supreme. I also have Armco Machine and Zenzi. All I can say is that you do get what you pay for. If your intentions are loading for a hobby and shooting at the local range for fun on the weekend the RCBS is tough to beat. If you foresee in your future maybe taking it a step further than by all means spend the extra money.
 
Jim, what is your budget for the press? The reason I say this is I own many RCBS’s, from the partner to the RC Supreme. I also have Armco Machine and Zenzi. All I can say is that you do get what you pay for. If your intentions are loading for a hobby and shooting at the local range for fun on the weekend the RCBS is tough to beat. If you foresee in your future maybe taking it a step further than by all means spend the extra money.
I'm willing to pay for quality, but won't part with ~$1,000 for the German Turban C-N-C press. Most of my shooting now is with my .222, .22-250, and a soon to be purchased 6.5 Creedmore. The .222 and .22-250 are for the range (200 - 400 m) and varmints & prairie dogs at a similar distance.
 
I have both rock chucker and summit and 2 other presses. I have really good results with all of them and wouldn’t say the rock chucker is any better than the summit. I take my summit to the range for fine tune seating as it is stable with just a couple cheap plastic C clamps. It floats so if runout is a problem then it’s user/die error in my opinion.
Thanks. The other two presses......either a Mec Marksman?
No, frankford arsenal M press and rcbs partner. The M press work’s just like the coax but the shell holder is stiff for a while and required some break in time. Really like it for seating
 
I use my RCBS Summit just for de-priming cases. I use the short lever and balance the moving platen with large rubber bands. That way I can just pull the handle down and let go. I remove the de-primed case with my right hand and insert a new case with my left hand. Very fast. The RCBS primer catcher has never missed a primer.

I replaced the two toggle bolts with a solid pin (just PM me). That removes all the play and makes the press way better.

20220116_115825.jpg20220116_115903.jpg
 

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