I had the same thing happen to me. 10gr vv110 Nosler 40bt had been loaded for 10 yrs at least. Took it out and fired and just about every one of them split. Threw the rest away. Ruger no. 1 .. That load gives me sub 1 inch consistantly at 100. Nothing else will......I use h110 and a 40 grain Sierra "hornet" in a model 43. I have not loaded for it in about 8 yrs. Haven't shot it in a few years until last fall. Started splitting necks right away...
Give the loads a slight bump in the seater press as it seam with the 22 Hornet that the longer it sits loaded the stickier the Bullet is to the brass.
Lil gun sticks to my powder measure hopper like a mother.. Other than that it shoots well with the 35 vmax out of my No. 1 VV 110 does real good too. 22 hornets are some tempremental chits.Lil gun, and H110 are good choices, and i believe i used pistol primers also if i remember right.i was using 35 gr vmax bullets.
Figured out just put them back in the press and reseat them ... way less crack .I had the same thing happen to me. 10gr vv110 Nosler 40bt had been loaded for 10 yrs at least. Took it out and fired and just about every one of them split. Threw the rest away. Ruger no. 1 .. That load gives me sub 1 inch consistantly at 100. Nothing else will......
My 77/22 was the same way. Shimming between the bolt halves turned it into a tack driver. Horrible design. A guy in AZ sells a shim kit for it. Mine needed .015” shimwell a Mossberg 16 guage is more accurate than either one of my 77 rugers
Wayne
Just this evening annealed {AMP} some 22 Hornet cases for a club member.CZ527 22 Hornet
CZ Factory Steel Scope Rings
Scope: Burris Signature HD 3-15x44
Neck size only
Small pistol primers
Hodgdon Lil`Gun (12.5gr)
Hornady 35gr VMax #22252
I anneal my cases.
I`m on my 5th reload with my Remington case`s, no splits, and still loading them until they do, split.
Equates to clover leaf (5-shot) groups @ 100 yds consistently.
I`ve headshot coyotes out to 150yds. Dropped right in the dirt where they stood.
The Lil` 22 Hornets have been my favorite gun to load and shoot for years.
Split necks with 3 firings. You must have a big chamber neck, Don't know how you anneal a tiny cartridge. Enlarged primer pockets can only come from high pressure.I have a T/C Contender in 22 Hornet. My brass life is terrible. There are 2 problems. First is split necks and the other is loose primer pockets. I seldom get over 3 loadings per case. I load 4.0 g. Of BE with a 50 grain bullet. The load is accurate but brass life is short.
It may be headspace in the contender. Your thoughts?
I had same problems. Switched to the 218 Bee instead and have been much happier.I have a T/C Contender in 22 Hornet. My brass life is terrible. There are 2 problems. First is split necks and the other is loose primer pockets. I seldom get over 3 loadings per case. I load 4.0 g. Of BE with a 50 grain bullet. The load is accurate but brass life is short.
It may be headspace in the contender. Your thoughts?