Newbie here and first post. Found this site googling and seems to be best place for some helpful info.
Came upon a 22 jet topper model 158 several years ago(at least fifteen) and have been unable to locate consistent ammo and/or reloading info over the past years. I have relied upon a friend to try some loads to the best of his knowledge, but have never been able to get any consistency whatsoever from the gun. This has been an off again on again project. I need to decide whether I want to keep and make a somewhat reliable shooter or eventually sell with all of my extras--bullets, casings, dies, etc.(although I would know how to go about this).
I have been told over the years in asking around locally, that this caliber will never shoot reliably, and should not spend much time on it. I am not an enthusiast or collector by any stretch, so my knowledge is quite limited. As a matter of fact, I had a "knowledgeable" person slug the barrell when I first got it and was told it was egged shaped. No way of knowing how true this might be. Same person said the twist was 1-16, but what little I have found suggest this to not be the case.
It looks like that the correct bullet is a 35 gr. .223, but I have also seen .222 and .224 listed in 35 and 45 gr. Powders vary, and my friend's patience can only try so many combinations. So far, we have tried IMR 4200 and 4227 with .222 to .224 and no luck.
If someone has enough experience with these to tell me that it is an effort in futility, then I'll bite the bullit(no pun intended) and give up. Since it so much of an oddball, and not many around, I would really like to make it a reliable shooter for spring gobbler hunting.
Sorry for the first long post, but I searched what was available here and have googled over the years looking for help. Not much discussion, and most references are to the pistol, anyway.