You are referring to 22 rimfire I assume? There was not anything that I recall in the ISSA rules, but from long ago. If some are breech seating in matches, it may have precipitated changes. Although I personally can't see why, and if found so, then just create another class. A friend Neal and I discussed giving it a go, ordered 1000 empty primed cases, but sadly it was not meant to be, Neal passed away before any progress. Hoping to help eliminate the dreaded, unexplained flyer, even in the high end (read expensive) ammunition. I noticed talk on some threads sometime back, and I am sure someone will come forth.

Good to know bpjack, thanks.

I am mostly responsible for this question being asked, I sent a PM to bnice just asking a few questions about some of the rules regarding setups and a few particulars in this game.  Bob, sent me a copy of the rules for the ASSRA and he's shared some insights - that is very much appreciated.  I know somewhere this info is posted, I've seen it but at this stage of the game, a post Covid event for me, clarity and function is not a real strong point.   

I am blaming high fevers, hallucinations, and weird dreams that go with these symptoms as the root of these thoughts.       
I have a rifle build that I am returning to that will be a bench gun and before I dive too deep in this hole, what are the particulars?  Most are answered now, BUT! in the ASSRA matches, 22RF related, what are the rules for breech seating ammo?  BP?  Is there something in print? is it left up to the Schuetzenmiester's discretion at the different sanctioned shoots? 
 
I followed some of Frank's posts on this a while back and he was having some successes with it.  I know he checks in occasionally and may respond, that would be appreciated.  I'm not that deep in it yet, don't have the time and experience with it yet to hold a good discussion.  I count personal experiences and data as important baselines and the place to begin - it's coming, whether it's allowed in matches or not often times doesn't matter once this horse gets headed down the path, personal curiosity wins over.

Insights and thoughts are appreciated, especially from the folks that have the final say here.
Thank you,
Greg   
 

This question was visited 20 years ago or so in the ASSRA. At the time it was decided that .22 rimfire was to be shot as fixed ammunition only and then ammunition could not be altered in any way. 
The schuetzen meister can chime in but that was and is my understanding.

40 Rod

Section 1.13   .22 Rimfire Rifles
.22 caliber rimfire rifles are classified separately and do not compete with the centerfire rifles. Only .22 Short, Long or Long rifle cartridges shall be in this category.

It now makes me wonder if the ISSA is also same. Could be Frankore really didn't actually deserve a top three placing at that regional match. But I will always feel that he did and hard earned.

Jeff_Schultz wrote on Oct 20^th, 2021 at 2:27pm:


Jeff, I read that. I'm not trying to be a smart-a$$ but just wanting to be clear.  If I drive 1500 miles and show up at a shoot, it's not in my make-up to only bring one rifle.  I'd probably have several to choose from, most would be acceptable options.  Now in the case that I have a combination that is shooting exceptionally well, I've done my experimenting, my practice, (which is rare), and I'm on my A-game...  whether or not it's allowed I'd probably ask to shoot it anyway -and as a donation pay my fees to play, or play by the rules of the Schuetzen Meister.   
This is getting hypothetical but as Tony just mentioned, there is some new blood that I'm developing in my classes that may be as odd as the instructor.     
The ammo combination I am using is still considered 22LR - it's just how it's put together...? 

Ledball, I've competed in many other shooting disciplines and my character oddity has caused some issues to be questioned.  That was also a time when youth and I seemed to have something to prove - winning meant the most... NOT the case any more.  Often times some new rules were made because of it.  On an occasion or two, I recall rules were cleared up so that when the condition occurred there were no doubts and level heads prevailed. 
Greg