Range Report: Walther-Hammerli B1 (Part 2)

Last week’s test of the above rifle made me want to test how the thing shoots with serious glass (instead of the “meh, that’s close enough”  accuracy of the red-dot genre).

So suiting the action to the word, I mounted a Burris Fullfield 2.5-10x42m that just happened to be lying around in Ye Olde Odds & Sods box:

Looks better, dunnit?  Also, this time I’d brought a sandbag along, instead of having to rely on my shaky old grip off the bench.  Ammo used was CCI Mini-Mag 40gr solids, and CCI Maxi-Mag 40gr solids.

Anyway, for the life of me I could not remember when last the scope had been mounted, or even what gun it had been mounted on, so I started off slowly, at 30 feet with the .22 LR:

Okay, good enough for jazz / government work.  When I moved the target out to 60 feet and then 75 feet, the shots went quite high, as to be expected.  So I moved the target back to 60 feet, dialed the scope down, and fired off the unlabeled string in the orange target on the left.  (Yeah, I forgot to label it, sue me.)

So much for the .22 LR;  now came time for the barrel swap and the .22 WMR.

The top string, at 75 feet, was fired with the scope untouched from the .22 LR sighting-in.  High (expected) and much to the left (unexpected).  The next string, at 60 feet:  still high (okay) but a lot less to the left (not okay).  When I brought the target back to 30 feet, the group was a little high (to be expected, with the mag load) and still to the left.

So I said a few Bad Words, and decided to zero the scope for 60 feet as the default (which is the very bottom grouping).  Very much good enough for jazz / government work.

But when I left the scope untouched and changed the barrel back to .22 LR, at the same distance (60 feet) I got the un-labeled grouping on the left (with a called flyer because the guy in the bay next to mine chose that precise second to touch off a .44 Mag revolver, and I caught a fright).

Still, there seems to be way too much left/right variance between the two calibers — which means that I can’t swap barrels in the same session without messing with the scope each time.  And that’s somewhat annoying.

So here’s what I’ve decided to do.  If I’m going to be shooting .22 LR, I’ll use this setup:

…and if I’m going to be shooting the .22 Mag, then the scope:

Swapping the scopes — they both have quick-detach (QD) mounts — actually takes less time than changing the barrels.

So I’ll be using the red-dot for plinking .22 LR fun, and the scope for any serious .22 Mag shooting I may want to do.

Final thoughts:  while shooting the .22 Mag ammo, I had several ejection failures (FTE) and a couple of feeding failures (FTF).  As I was too busy doing the sighting-in thing, I didn’t pay much attention to it until afterwards.  Here’s what I learned:  even though the straight-pull bolt looks quite flimsy (plastic, what can I say?), it really isn’t, and the thing needs to be pulled back and slammed home with as much force as a turnbolt action.  I was actually being quite gentle with the loading process, and I shouldn’t be.  That will be addressed in future range sessions.

Next step:  acquire a suppressor.  More on that, later.