77/22 .22 Hornet

[rangerruck]

That is interesting now that you mention that: i was reading some internal ballistics charts recently , and watching or looking at the graphs and animated pics on what happens when the primer goes off, inside a cart. There is quite a bit of geometry that goes on in there, from just the primer, and you are right, you want as little rebounding of the shock wave as possible, from the initial detonation as possible; hopefully if you have it positioned right, and you case is built right, ideally you want as much of that wave as possible, to hit right back on top of the powder plug, as much as possible anyway, and you want it done within 2 or 3 rebound strikes, no more if possible.

 

[GunTech]

+1 on K hornet.

Also try pistol primers. My groups really shrunk.

 

[Walkalong]

I usually prefer to shoot fir groups with the Hornet in the evening from about 90min before sunset till sunset. The winds are ususally lighter then

I have been doing it in the morning before the winds kick up. There has been some wind, but I have accounted for it. I did not bring wind flags, I just watched the grass and felt it on my face. I would wait for a calm to shoot, most shots anyway. As an semi retired benchrest shooter, I have a real good feel for what the wind will do to a bullet.

This gun has exceeded my expectations. It has proven it can shoot under 1 MOA, consistently, even with the barrel heated up some. It has shot well under 3/4 MOA, and with the right load I think it will do it consistently.

 

[higene]

77/22

Gunsmith Notes, Ruger 77/22 Setback and crown L.R, .22 Magnum and .17 HMR:
CPC headspace gages barreled action upon arrival, noting any changes to be made. Setback breech by .175, cuts shank for SAAMI minimum headspace. The newly cut shank area is left larger fitting the receiver hole with a line to line fit stabilizing the barrel in the receiver. A reamer pilot is fit to the exact bore size then hand bolt match chamber reamed concentric with bore. Chamber is hand polished, bore is hand lapped, a new lock down spacer is locktited in barrel's V cut to insure proper tightening. Extractor slots are recut. Muzzle end bore is indicated within .0002, a new 11° recessed target crown is cut for accuracy. Bolt halves tightened. CPC measures the gap between the bolt halves, grinds and installs a pin that tightens the halves. Tested to be a excellent reducer of flyers and tends to round out target groups. If rifle is shooting low, customer should note this so we can adjust.

Gunsmith Notes, Ruger 77/Hornet:
CPC headspace gages barreled action upon arrival, noting any changes to be made. Un-screws barrel, setback breech end by two threads (.100). Match rechamber either in .22 Hornet or K-hornet, customers choice. Both caliber reamers were made with the same minimum length throat so both create similar accuracy.

"BEYOND" BOLT TIGHTENING: A 2 part bolt rework for 77/Rugers. A new heat treated pin is made and lapped in to tighten the gap between the 2 bolt halves. A new tool steel sleeve is heat shrinked and ground to fit inside bolt body. New internal sleeve makes the pin last longer. 2 part beyond bolt tightening is standard with all 77/Combos. On rimfire rifle versions, bolt tightening reduces flyers and tends to round out target groups. On the longer Hornet bolt, it reduces flyers and produces 25 - 30% accuracy increase.

RUGER 2 PART BEYOND BOLT TIGHTENING by itself. Send complete bolt only with $115 plus $9 s&h. Priority mail returned insured for $100.

This is a direct quote from CPC.

 

[rangerruck]

mmm.... I may have to try the bolt tightening procedure, sounds yummy.

 

[Bob K.]

I've sent 3 rifles back to Ruger for accuracy "repairs": A 77/22H, 77/22VHZ, and a 77MKII in 30-06. After following Ruger's instructions for testing accuracy, I sent them back for accuracy work under the Lifetime Warranty. Total cost to me was $20 UPS shipping per rifle because of the free Lifetime Warranty.

I sent off rifles that shot 3-5 MOA. I got back rifles that shoot 1-2 MOA with reloads, have smoother barrels and chambers, and lighter triggers. Give it a shot! Can't hurt to ask.