caspian guy

Yes I'm using the red version... The green seems interesting and I'll probaly put one on something eventually but I have too many years of brain training associated with using red dots on open guns to quickly make the change.

I like the sigs and their warranty is great... Unfortunately I've had to use the warranty one too many times on the romeo max that was on my open gun. For the last 5k rounds I've been using the HS and have been quite pleased with it. I thought in the beginning I was going to want the 2MOA dot and the 8MOA ring since I've always shot a 6MOA or larger dot (since original CMores.) But I found the combination distracting (I was hoping they would merge at speed to an 8MOA dot but I kept noticing ring +dot.) Fortunately with the dot turned up to full brightness it is bright enough and blooms enough to work just fine for me.

The one time I have seen this it was a case of powder contamination (guy had put a little lube on his powder measure in a bad place ...) but contamination in the case would also explain it. In his case the bullet was just started into the rifling (like a primer only squib) but there was powder all over inside the gun.

A user on this forum Memphis Mechanic used to have a source for carbide throating reamers. I haven't seen him on here in a while but if you can track him down he might have a suggestion on where he got his.

I'll try to remember to do it the next time I chrono.

If you have a barrel threaded 11/16x40 (think 2011 with a bull barrel) and are planning to shoot major the binary comp would be my choice.

Wow... That's quite clever.

If using a manual mill... Drill holes where pins would go... Then either thread holes and screw in pins or press fit pins.. In either case use good loctite.

That's really clever, I love the innovation. I'd like to see the inside of the action. The regulations may suck there but y'all haven't let them stop you.

This.... I ran an open gun in 9 major with an upright cmore for many years. It could be made to work with careful tuning of ejector and extractor particularly with careful selection of brass headstamp. However when useful window sized mini red dots became available there was no reason to put a full sized cmore on a open pistol anymore. I used the romeo3 max for several years and liked it other than having to send a couple of them back to sig for issues for the buttons stopping working or then blinking out under recoil after awhile. I have moved to the FTP alpha and the Holosun 507 comp as my current dots.

507 comp on frame mount on my open gun... Replaced a Sig romeo max... Have 1k rounds on it. Plan to shoot for this year.

They have been allowed at least since 1999 (that's as far back as I go) but I know when I took my cro class in the portion on stage design the instructor discouraged them due to the potential issues and difficulty of ROing them.... I know in the last 10 years they have become far more common.

Same for me.

Looks very familiar

Yep middy with 2 barrel ports and a 3 port BE comp is an excellent combination... Particularly if you use something like shooters world major or AA7 that makes enough gas to run it.

If recall correctly it was Springfield Armory who tried that with 'racegun' or it may have been guns and ammo?

And you won't be able to until you've made some contributions to the discussions...

A mill makes things much nicer but it you have a decent set of calipers, a sharpie, and a center punch to do the layout work and then check it against your mount before you drill, you can do it pretty easily with a decent drill press (at least to the level of precision required for a red dot frame mount.)

Yea Hs6 works fine, it's just on the faster end of the slow powders (just like Aa7 or shooters world major are on the slow end of powders that's work to load for major)

HS6 is a good bit faster than Aa7 (compare the charge weights to go major)

And there's someone who just might know something

Shooters world major varied greatly by lot. Some lots were faster. Some slower. At least one lot was so slow you just about couldn't make major with it in some configurations of gun. But so long as you could get enough of one lot it wasn't that big if a deal (just work up your load and pay attention to what the brass was telling you.

And gone... Shame I don't need 45 bullets (which they do have in stock)

Yea I got a notice from shooter's connection last summer that they had them in stock. I immediately bought one to match the ones on my open guns. Till that point they had been out of stock for over a year.

I have been through 3 of the Max version of the dot on my open gun so far most of them lasted between 6 and 10k rounds. The 4th which is on the gun started blinking out sometimes (a symoptom which one of the others had exhibited. Other than having them fail prematurely they were an excellent dot. I've decided I don't want to have to deal with this anymore so I've just replaced it with a 507 comp to see if I can live with that. But previously I was willing to live with lack of longevity as the dot worked well for me otherwise.