.17HMR groups, how do others compare please.

[Knackers]

G'day fella's, its been done to death but we have a fair few new members in the last six months and some of them 17 HMR owners. Here are a few pic's of groups that I have shot over the last couple of years with my CZ varmint, tight as a fish's at 50 yards and loose as a Ho at 100. Are these typical of most HMR rifles. You will note that all the groups at 100 yards are smaller than a bunnies head, thats why I have put a round beside each group so you can get a gauge on it.

[Plowboy]

Thanks mate good stuff. I have never tried shooting groups with mine but I would say that if your targets are rabbit head size, mine would be similar. One thing I would ask is have your tried some other brands of ammo? I seem to get the best shooting from hornady and federal ammo. Winchester sux in mine and one other brand that I cannot remember shoots like crap too. I reckon though if everybody did their own testing they would show similar accuracy to yours. I reckon that the accuracy is not too bad for a rimfire though eh?

[Matthook]

My .17 is similar, Spot on at 50 but a 100 gets a lil messy. Tends to be all over the shop.

[trevort]

Knackers, I've upgraded to a 17mach 4 but the Hmr I had behaved very similar to yours (except I never got one of those fluke, arse, bughole groups. Maybe it wasnt fluke mate!

[Brad Y]

Best was under 1/2 MOA at 100 dead still day using 20gr gamepoints. But I sold mine too.

[Knackers]

Knackers, I've upgraded to a 17mach 4 but the Hmr I had behaved very similar to yours (except I never got one of those fluke, arse, bughole groups. Maybe it wasnt fluke mate!

Read an article in PS about building a Mach4 and I must say I was nearly sold on the idea, money was the only problem.

[MAWLER]

Thanks Knackers.

Whats the cause of the 'blow-out' at 100m in everybodies opinion? Velocity too much for the rimfire, wind blowing the light pill or just a specific character of the hmr?

[trevort]

a relatively slow and extremely light pill imho

[chris.tyne]

I reckon that the heavy crimp playes a big part in the puzzle,not so noticeable at 50mtrs but the further out the bigger the variation.
That and the fact that most of the rifles are around the $1000-$1400 mark so barrel+ammo =what you get,I would like to see what a rebarreled one would be like with a good quality barrel fitted.
Have seen a Krico 400 something or other put down some really good groups at 100 once or twice at the local range.



Regards Chris.

[Brett33]

Not HMR but the Mach 2 I have will shoot under a inch at 90m 9 times out of ten. It is however a Lilja drop in for the Sako P94.
The boys at the range banned me from using it in the rimefire 90m comps, they could not get close to me.

Brett