ruger 77/22 hornet
- Thread starter daniellybbert
- Start date
I purchased a used M77/22, first 2 shots:
Went online to : triggershims .com bought a few shims (.003" worked best for mine), I haven't shot it yet, but everyone says this will fix issue. Will update in next week when I get out to try it.
This was factory Hornady. The one on right actually split the case open. Please use caution, and eye protection of course!
**UPDATE**
After shim install, the groups may have tightened...but same results. Slight ring expansion at base, and one partial head separation as pictured above.
Guess it's time to send to a Smith... If I get my hands on some different factory loads, will try first.
If the OP comes to a solution, please recommend.
*2017-01-16 Hornady is replacing my ammo, see post #11.
Went online to : triggershims .com bought a few shims (.003" worked best for mine), I haven't shot it yet, but everyone says this will fix issue. Will update in next week when I get out to try it.
This was factory Hornady. The one on right actually split the case open. Please use caution, and eye protection of course!
**UPDATE**
After shim install, the groups may have tightened...but same results. Slight ring expansion at base, and one partial head separation as pictured above.
Guess it's time to send to a Smith... If I get my hands on some different factory loads, will try first.
If the OP comes to a solution, please recommend.
*2017-01-16 Hornady is replacing my ammo, see post #11.
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- Location
- Southern Vancouver Island
This crap would not be happening if Bill Ruger was still alive.
Trimmer 905
CGN Ultra frequent flyer
What he said^^^^^. Try different ammo brands first.
I e-mailed Hornady the other day, the lot of 22 Hornet ammo (Item #8302) Batch #3152177 from my picture above seems to be defective, and they're replacing all of my ammunition from that lot at no charge. Hope this helps if your issue was not resolved.
257Roberts
CGN frequent flyer
- Location
- Peterborough ON
- Location
- In the shadows of the Rockies
Cool little round. I have a 22 Hornet Savage Model 25 and it's quite accurate. I get longer case life with mild loads.
Interestingly, many years ago the industry maximum pressure for the 22 Hornet was reduced from 47,000 cup to 43,000 cup -
Speer Reloading Manual No.11 (1987):
Speer Reloading Manual No.12 (1994):
Interestingly, many years ago the industry maximum pressure for the 22 Hornet was reduced from 47,000 cup to 43,000 cup -
Speer Reloading Manual No.11 (1987):
Speer Reloading Manual No.12 (1994):
sharp shooter
CGN frequent flyer
- Location
- Essex county (Ontario)
My brother's had headspace issues - Ruger should of had a recall, very common problem apparently..... What a joke for the price of those guns.
- Location
- Saskatchewan
Something to keep in mind is that the hornets head space off the rim. A lot of hornet brass is very in consistent on on rim thickness. I didnget a bad batch of hornady brass though that all separated at about the same place. Try some different ammo,
If not, call ruger. You'll have to send it off to Quebec to get warranty work fin they want to fix it....
If not, call ruger. You'll have to send it off to Quebec to get warranty work fin they want to fix it....
sharp shooter
CGN frequent flyer
- Location
- Essex county (Ontario)
Ok, well call it what you will, his chamber was too big for factory ammo and cases split.
All .22 Hornet brass I have ever seen in 50 years is considerably under saami specifications , especially the diameter just ahead of the rim.
I would think you have a problem with very slight headspace and poor brass. More the brass than the rifle I would guess although it is common for Rugers to have a large diameter chamber.
I would think you have a problem with very slight headspace and poor brass. More the brass than the rifle I would guess although it is common for Rugers to have a large diameter chamber.
- Location
- Southern Vancouver Island
Ruger would have been better served by using a Brewer type locknut barrel fastening system(As on their Ruger American)to allow for proper headspace adjustment. Careful chamber cutting is a must fer sure.
For a .22 Hornet, I would go CZ meself.
