>>Hi lexasgs400...
I don't know if I've met you or not before but regardless - nice to see you here on the Forum. Sorry to learn of your problems with the R9. Bottom line, and as has been discussed before = there is no acceptable reason for an R9 to experience failure when it is cared for properly and provided with desirable ammo. I regularly use the ammo you mentioned in my R9s, and I'm surprised in particular to hear the ball ammo failed (Win White box .115).
What will it take to get your gun right depends in part on the limit of your patience. You should not HAVE to deal with a cracked frame or functional problems. However, it is well documented that a handful of the 1000+ guns out there have experienced one problem or another. I am one of those people, having experienced feeding problems with two R9s...sent the guns back to the factory...and when I got them back with a gracious phone call from Karl Rohrbaugh - both guns functioned fine the first time out with four types of ammo...so far so good, and I hope it stays that way.
Before I forget and regarding guide springs...my guns each had ~100 shots on each spring when the FTFeed problems first occurred. I mention this because it is an issue Chris (R9SCarry) has been looking at regarding feed problems, and mayby it is a problem in some guns. At this point we just don't know... And for all we know...similar problems may be caused by different issues. We just don't know for sure, nor does the factory, which is why it is so important that we all work together to to sort things out and get all of our guns up to specs. I love my R9s...it is a beautiful design and so well made, and for now at any rate I am willing and able to work together towards solutions.
You have already shown a good deal of patience dealing with the cracked slide on your R9. I hope you will continue to hang in there, working with factory folks, as needed, to finally get it right. Still, we all have our limitations, and this is understandable. Those of us here on the Forum desire to be of help and support to you, as does Karl based on our history with him.
At this point I would suggest putting a call into Maria explaining the current problem, asking advice on what to do from here. I doubt the problem is your ammo, but it may be worth trying a couple more brands, like Blazer .115 FMJ and Win Silvertips in .115 (both used regularly for testing at the factory).
As suggested by others I think it a wise idea to take at least two additional experienced shooters with you to the range to test it with the new ammo before making any harsh decisions from here. Keep up the scientific approach, recording data on which magazine you use, and which shot per mag may experience a failure of one kind or another, etc. And remember to clean and lube per factory reccomendations every 50-80 shots = very important to keep the gun working properly.
Good luck and let us know if we can be of further help, and of course please keep us posted on your progress.
I wish you and yours a Wonderful Holiday Season...!...TW<<