caspian guy

Give this a look... some interesting analysis around port sizing and spacing. I seem to recall he's done some other simulations (which I can't seem to find right now.)

Yes 9mm major will work with a normal upright cmore mount. The easiest approach is change the barrel and see where you are. Then if you are having issues. Try following this http://www.brazoscustom.com/magart/ejection perfection.htm Brazos custom sells an ejector that's already tuned as described if you don't want to do it yourself. I prefer an aftec for an extractor but opinions on that vary. A normal extractor can be made to work just as well with tuning. I find using once fired, single headstamp brass (not hard to get or terribly expensive) makes the tuning process easier but commercial headstamp range brass can usually be made to work in most guns.

I'm like zzt above I like 2 3/16th holes and a good effective 3 port comp with a powder that works the comp/ports and makes major (in my case silhouette)

Mini red dots do make it easier, but truthfully it wasn't that hard to get it to work with a full sized cmore if you understand how to tune the extractor and ejector.

Tom were those factory 40x repeater actions or converted single shot actions. I ask as i have a vintage 40x smallbore gun that might interest me more as a repeater.

I've shot silhouette for years... Works fine for me.

Yep i picked up a couple as well... will be interested to look them over and take some measurements. Given their reputation I expect good things.

I think you are on to something Eric.

Is the coupon on the website?

Ehh the shorter the barrel the more likely you are to notice a benefit i guess. Probably running a medium or slower burn rate powder all other things equal would run the brake better. But if it was me I wouldn't spend big money on a pcc brake I think it's better to mess with tuning the springs and buffer setup for a blowback gun. But in the end only you and the timer know what works best for you.

Yep that was pretty much my point.. it helps people understand the difference in magnitude of the forces at work.between the gas from a major load in a 5" barrel and the gas from a minor load in a 16" barrel.

If you want a calibrating comparison try the same test on the comp of an open pistol running major.

Good luck at GA. We'll catch up at some point. If you don't have it figured out by then I'll be glad to look at it for you/let you try some other mag setup variations.

This is a common cause of nose dive feed malfs in 2011 guns... I check for it by pulling the slide off and inserting a loaded mag. First the round should not be touching the bottom of the ejector at all at rest. Then push the loaded round out of the mag. Look to make sure as the round slides out of the mag it doesn't touch the bottom of the ejector. Chalee's suggestion is also a good one I've seen issues with the ejector nose being too long with respect to where the round is released from the feed lips. Tolerance (in grips and mag release shelf height and ejector dimension) can cause mags that work in one gun to exhibit this problem in another gun. If you are going to be at Brocks gap (I think they are having a match in Sept?) I can let you try some of my sv mags to see if it makes any difference.

Sorry... Been there done that... Got the pistol and the hearing damage to prove it (but God is that gun flat)

Yea man no worries. I actually raised the casepro up enough with the mount that I could use the Dillon tube as it sits. But depending on how tall you are and your bench height that might or might not work for you. (but a tube connector shouldn't be hard)

Good idea. What i did was mount the casepro behind my 650 (where I could swing the case feeder on the 650 mount pole) then I put a spacer under the base of the case pro to get it higher(just a block of wood.) That lets me reuse the Dillon tube and swing the feeder around.

If you are looking to get better it would require about the same amount of practice and dry fire to get better in co or open. An open gun will make you faster (once you are used to it.) but every one shooting open has the same advantage. If you think you'd like open by all means. If you think it will help you keep interest in the sport great. If there's no competition where you are in CO I could see that. But don't think suddenly it will make you more competitive. I went to open like Sarge when my eyes said no to iron sights. At the time there was only one division that allowed a dot, so to open I went. Now CO gives another option. So if you decide you want to shoot open welcome to the dark side we'll be glad to have you, but be sure you know what you are trying to get out of it.

It would depend a little bit on what sport you are planning to shoot with that load. For steel challenge that 88-90 grain bullet might be fine (have to check their rule book). For major in open there is a minimum bullet weight (112gr I think but check the rules.) If I recall that dates back to the days of major being 175pf and people making major with 90gr bullets cratering steel.

Thx much

Do you mind posting the lot number (want to check my stock.

Claudio is generally the right guy to talk to there if you can get to him.

Other than that it looks promising. I bet you could reinforce the bottom compartment like ced/daa does (looks like they use some heavy corrugated plastic formed into a hoop) i think one of the earlier style backpack style bags I had used a u shaped piece of plastic to make it more rigid (maybe that was an old style ced (can't remember.) Thanks for sharing your impressions.

Check with NROI on that.. I think the interpretation is that for decocker guns wherever the gun decocks the hammer to is fully down.

Yep that's my method as well. Having seen a couple of ejector fire incidents up close as an RO and a shooter I prefer this approach.