I have the old fluted 453 varmint CZ and Tried every brand/type of .17 grain and the 20 grain always did better.
I’ve found the CCI “TNT” to be the most consistently accurate ammo type.
I’ve shot 17hmr in both Anschutz and Sako. The Anschutzes ranged from good to outstanding and the Sakos were good to very good. The best I’ve ever shot was a custom 1727 with I think a Hart barrel. I don’t know what magic went into it but it seemed very accurate and not too lot sensitive. The Anschutz 1717s also have a reputation for being consistently very accurate.
David
Both of the above statements/experiences, I have no doubt, are true. Totally different from mine though, which goes back to the facts of RF. Three most important things are, barrel, consistent ignition, and ammo lot. Trigger could fall in there, but if you don't have the first three, trigger doesn't matter much.
My 453 preferred the 17gr over the 20gr, but I did not have much to pick from though. Both of my rifles were acquired during the ammo shortage. 17gr was easier to get and testing 20gr was limited. hogpatrol's barrel must obviously like 20gr and from the sounds of it, he has tested to acquire the data needed to make that judgment.
dgeesaman's barrels must like the TNT Green bullet. In fairness, I have only one lot of the TNT Green, and bought it because it has a good rep on the interweb for being accurate, but that particular lot is less than stellar in my 457 and the 453 was long gone before I got the brick of TNT. His custom barreled 1727 is no surprise either. While still a crap shoot, a custom barrel has much higher odds of getting a good one than a factory tube. His statement that the rifle is 'not too lot sensitive' tells me he has a very good barrel. I shoot sanctioned RFBR and when you get a very good barrel, that is one of the traits associated to it being very good. It will eat several different lots and shoot them well.
A lot of good information in this thread and I applaud those that have posted experience based on actual testing, instead of what is way too common on forums......oh, my rifle likes this 'brand', or my rifle likes CX better than Midas+.....etc. I will call BS and say the ones making statements like that haven't put in the work to properly test, or don't know how to properly test.
To the OP, almost any rifle with a good barrel, ignition, and diligent lot selection can perform to what the .17hmr was conceived for......hunting. Pick your price point and roll the dice. After that, only well thought out testing and experimenting will bring out the truth about how good the rifle is, or can be. I do know of several scratch built custom .17hmr benchrest rifles that have been built for 'egg' shooters. They are amazing!.........but only after proper testing and I would assume some type of ammo sorting.
Scott