I'm guessing this has been discussed at length in this forum, so I'll use my newness to the discussions as my excuse if I'm asking a question that's been answered many times.....If you shoot the same gun, is it necessary to resize AA, STS, or other quality brass base hulls? I'm asking because I'm reloading with an old ('70s vintage) MEC 650 with no resizing station. I can answer my own question in regards to Model 12s....at least the ones I own (4 of them) and the answer is no, it's not necessary. I reload AA & STS as long as they will crimp & hold shot. No resizing and they fall into the chamber & eject, no problem, always. But what about other guns? Seems to me that if they shoot & eject, they should shoot & eject again without resizing as long as it all happens in the same gun. Thoughts?
When is Resizing Necessary
jnalley
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For me, it's an advantage to not resize due my current loader. 1Straightshots pointed out to me that you can, in fact, resize on an old MEC 650 but it's a separate operation. So, until I break down & buy a progressive loader that incorporates resizing into the process, I can either resize as a separate operation or not resize at all. At least for now, I plan to shoot the same shells in the same gun & not resize. Thanks
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I’ve had something like that happen with oversized steel bases on an SX1 and an 1100. The oversized base allows a gap to form between it and the plastic hull. When the bolt assembly is released to chamber a round, the barrel extension can wedge into the gap and get very badly stuck. On both occasions I had to stand on the bolt handle with one foot to get enough force to drive the bolt back and realease the shell.
On O/Us I’ve had oversized shells cause extraction problems.
Now I use a Supersizer on all hulls with steel bases or fired from unknown guns.
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And no doubt on a flurry of birds
I might be a little too particular, but I resize everything with a Mec Supersizer before it goes through the reloader. As MAH66 stated, I believe it put less strain on the reloader. I resize 12, 20, and 28 gauge. I only use brass based hulls. I don't mind taking the extra time to go through this step.
No doubt that's overall the best approach. Then you know for sure shells are going chamber & eject as they should. And, that extra step gives you a closer look To cull out splits, etc. Thanks
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Folks should go back and read the post's from below, January 28, 2009..... very similar responses. Steel rims can be a problem, hulls from different guns can be a problem, different hulls have different requirements..... one comment indicates at least what one shooter experienced, "embarrassing to stand on the line with a pocket full of shells that won't chamber"......... Larry
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.12 gauge base should mic between .804 and .806 (Mec recommendation)
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I just like the piece of mind of knowing they will always chamber.....
I have decided that's the best approach as well. I did find out through this forum that my old MEC 650 does have a resize option but it's a separate operation. I have an equally old 700 Versa MEC that I have robbed everything except the re-size station and I'm resizing everything every time. It's a separate step for me but it's actually pretty quick & efficient for now. Thanks for yours & others comments/thoughts re re-sizing.
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My RCBS The Grand doesn’t like the steel bases hulls shot out of my browning. It takes considerably more effort to resize them compared to brass. Yeah, why shoot them? Well my 1oz sporting load is pretty hot and shot out of my auto roasts them GunClubs real good so I let them fly. I’m too cheap to let my brass hulls take that roasting and let them fly lol. I have a mec9000 I use for steel hunting loads so the other day I resized and deprimed 50 GunClubs in the 9000 then backed the resizer off The Grand and my gosh it was such a breeze to load them with that step removed! Yeah the extra step is a little annoying but I’m thinking it may be worth it.
As someone on the forum pointed out, resizing as a separate step may consume more time, etc., but when resized shells(and the way I'm doing it also de-primed shells) go through my loader, it's easier & smoother on your equipment.
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The loading operation of my 9000H makes resizing of the steel base of the GMGrand a simple thing. One thing required is lots of lube on the collet. Its interesting that the collet when set to take the steel base down to .809" takes the brass of the STS, Nitro or GM down to .805/.806". Not sure if its that way on all machines but it sure is with mine. Larry
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