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Tackdriver VI rifles

Shot my new (cough) proto type bullet for the Thursday no flag
terror match. Other then two major brain farts, and another issue,
these bullets are going to get more trigger time on them. I believe
you got a sample to ponder, Jeff ??
I did get 1 sample bullet. Very interesting, I look forward to seeing more results from testing. I won’t spill the beans regarding secrets other that it’s a turned solid copper bullet…but a few more features I’m not at liberty to talk about.
 
Wow, a case full of N120. That think must be "smokin" fast!
I’m trying to digest that as well.
I shoot 35.7 grns of N130 behind my own 112 grn bullet at about 3050 fps. It would seem that 34 grains of N120 behind a 108 would definitely be a “hotter” load. How much hotter, I don’t know.

I have always wanted to explore an “upper load window” with my 30 BR, much like many of us do with the 6PPC. 30BR’s really shoot well in what I think is probably a medium window load. Brass last for an eternity. So pushing it harder, say in the 3150 fps range with a 112, might be counter productive.
 
I shoot 35.7 grns of N130 behind my own 112 grn bullet at about 3050 fps.
I'm working with a 30BRS (.080 longer than the standard 30BR), H4198 37.1 grains with BIB 112 running 3250 FPS, shoots really good and had I gotten the opportunity to come this year that is what I would have been shooting.
 
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I'm working with a 30BRS (.080 longer than the standard 30BR), N130 37.1 grains with BIB 112 running 3250 FPS, shoots really good and had I gotten the opportunity to come this year that is what I would have been shooting.
Is the shoulder moved ..080 further forward?
My overall chamber length is 1.550, with a trim to length of 1.540. But the base to shoulder is standard 30BR.
 
Jim and Bill, what powder?

My 30br shoots dots at 3050. I am guessing 3150 would be the high node but my case is pretty full now.
Thats why the powder change to vv120.
I did experiment with V 120 in the 30 br, until I found lt-30. This was during the H-4198 dark days.
V-120 was very snappy in recoil, a 13.5 pound gun. Now if I was shooting it in a much heavier gun, that might make the difference. Not sure what the rifle weight limit is, in the tac driver. But I would add the weight.
 
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You should have used the .22 caliber. It would have made all the difference! I’m an expert at giving free advice, you’re welcome Dave!

You should have used the .22 caliber. It would have made all the difference! I’m an expert at giving free advice, you’re welcome Dave!
Hey Jeff you know I was looking for all the velocity I could get.
You could have given me a little more advice at the Nats. I thought we were friends!:p
 
Hey Jeff you know I was looking for all the velocity I could get.
You could have given me a little more advice at the Nats. I thought we were friends!:p
Unfortunately I wasn’t at the IBS Nationals. I was at a stinking wedding in Maryland. Statistically speaking there’s a 57% chance it will end in divorce. There was a 100% I’d have a great time at a shooting competition. My wife didn’t see it that way…we all know who won the argument.
 
Safe travels Bill.
We usually stay south until we hit New Mexico. This time, the weather looks good enough that I'll be able to head right up to Sioux Falls with no concerns. Then west on I-90 and up through Great Falls MT. to Lethbridge. Easy driving, and I won't have to worry about winterizing the camper until Great Falls. Might be some snow at home, but that's as it should be. The prep for Tack Driver VII starts the day after I get home. I will not embarrass myself again! WH
 

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