got my bullets will load this weekend and hopefully shoot this or next weekend . My tripod broke for my chrony trying to locate a cheap one to know how fast they are going. Will let you know soon.
Sounds great! I don't have a chrony -- wish I did. I just got my 55 grain bullets. They're Sierra spire point and shorter than the Hornady 50 grain V-max bullets I was working with. I also increased the powder to 11.3 grains of AA #9. I won't get a chance to go to the range for another 2 weeks.
A fellow I know is shooting sabots out of his Ruger Blackhawk chambered for 30 carbine. The twist is 1:20 and the bullets he has are all too long to work well with that twist. His friend is shooting the same sabot rounds out of his M1 Carbine -- had to single load them since the cartridges are a bit too long for the carbine magazine. They shoot ok out to 50 yards and he says they hit kinda like a 22 hornet. At 100 yards they are keyholing -- understandable with the same 1:20 twist in the carbine.
I got to the range yesterday and shot both my short and long sabots. I was hoping the short sabots would do good since they fit and feed from the PPS-43 mag but I had a couple of problems. The big problem was the accuracy of the short rounds was bad. Just like some people have described -- more of a pattern than a group. looked like I shot them from a shotgun. Another problem that happened two or three times was the sabots must have hit something before being chambered and it bent one of the little fingers back causing a jam. The picture below shows the short and long rounds.
The long rounds shot ok -- I guess. I sighted in the carbine using Seller&bellott commercial Tok ammo at the 50 yard range. I just got one of those short 3 to 9 power scopes, made by Leapers, for the carry handle. The scope seemed nice at home but when I got to the range and really looked through it I realized I should have spent a few more dollars and got a better one. I figured this is a plinking rifle so the cheap scope is no big deal. The target below tells the story of the longer sabots. You can see the two 7.62 Tok holes at the lower right of the target center box or diamond shape. I fired 30 sabots and they mostly hit 2.5" high and made an impact area 1.5" wide. I put a quarter in there to give a better perspective of the impact size. I had flyers that circled the impact area.
The sabots operated the DI action just fine and dumped the brass in the same place it dumped the Seller&Bellott brass. You can also notice that I can't shoot anymore -- the two 7.62 Tok holes don't even touch. I know of a fellow that's shooting these sabots out of an M1 Carbine and hunts turtles with them. He says they hit like a 22 hornet. Wish I had a chrony.
By the way, I had to peel the target off the backboard at the range and I lost some of the center part of the impact area. I stuck the target on the back of some cardboard to save it.
Last Edit: Sept 4, 2011 8:01:07 GMT -5 by 22boomer
Looking good I will try to chrony my loads I need a tripod to hold it up. Gotta get one my old one died a year ago. What gr bullets were the long ones?
The long sabots used 55gr Sierra spire point bullets. I went to the spire point because they were a bit shorter than the 50gr Hornady v-max bullets I started with. The Sierra bullets let me set them out a little longer and give me more powder room in the cartridge case and still fit in the M1 carbine magazine I'm using.
I was thinking maybe I should actually try longer bullets with the 1:10 twist rate I have. The stability of the bullet is affected more by the bullet length than the bullet weight. I had a little room left in the cartridge case so a longer bullet would fit.
You know, I wasn't joking about how bad I was shooting that day when I mentioned that the two 7.62 Tok rounds were not touching on the target and it was only 50 yards and I was on "9 Power" on the scope. I had a problem with the rifle before I started shooting the sabots that day. I was using a box of the older Sellier&Bellott ammo and actually had a squib load. I had to pack up and go home to try and get a bullet out of the barrel. I was having a bad time trying to get the scope zeroed in then the squib thing happened. I returned to the range and put those two 7.62 Tok rounds into the target center and figured that was enough and got on with the sabot shooting. Yesterday I was cleaning the carbine and found the scope mounts were loose on the receiver -- I mean the scope would just slide back and forth. I'm not saying the bad shooting was the scopes fault since I know I can't shoot that well -- just saying it may have added to the inaccuracy.
I've got another DI Tok carbine I can use -- it's got a flat top receiver with a much better scope and was originally built for the mini-whisper rounds. I already test fired one of the long sabot loads and it works fine but I think I'll up the powder charge from 11.3gr to 11.5gr of AA#9 and see what happens. I'll use the same 55 grain Sierra spire point bullets.
Last Edit: Sept 6, 2011 20:02:27 GMT -5 by 22boomer
Just got back from the range and I got some velocity info on the sabots I've been shooting. Out of 5 shots using the 55gr Sierra spire points and 11.5gr of AA #9 the average velocity was 2288fps -- the high was 2296fps. I was hoping it would be faster but maybe I need to change the powder. The Accuracy was a bit better with 25 shots inside a 1" target square with only a couple of flyers. I'm not sure if I'll be going any further with this but who knows.
Last Edit: Sept 17, 2011 10:54:40 GMT -5 by 22boomer