Precision Rimfire Trainers

Wahoo95;n63554 said:
I'm speaking more so on stiffness and harmonics rather than heat. Isnt that why you never see pencil barrels at truly competitive benchrest matches including rimfire? That was my point about it depending on the level of accuracy you're deeming acceptable. The folks that like to shoot one hole all tend to prefer the heavy barrels as do the manufacturers. Or is that strictly about heat management?

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That's being changed in the last 10years. The assumption is thicker like a #7 or #8. Look at Palma profile barrels. They are a #4-5 hybrid.

Palma profiles from the leading brands like Broughton, Brux, Hart & Obermeyer a #7 to 9 is a thing of the past.

And that's in center fire.

I know Brux and Obermeyer does thin rimfire bench rest profiles that are currently at the stick.

Fyi
 
JBoyette;n63574 said:
That's being changed in the last 10years. The assumption is thicker like a #7 or #8. Look at Palma profile barrels. They are a #4-5 hybrid.

Palma profiles from the leading brands like Broughton, Brux, Hart & Obermeyer a #7 to 9 is a thing of the past and only requested by new shooters.

And that's in center fire.

I know Brux and Obermeyer does thin rimfire bench rest profiles that are currently at the stick.

Fyi
 
I am not a match grade shooter, but I do understand harmonics and structural mechanics. Deflection is a function of Length, Modulus of elasticity, Moment of Inertia, and Force. Under direct loads, shorten the length, you get less deflection, increase the moment of inertia, you get less deflection. Harmonics makes it more complicated because you have nodes or points of no deflection under the vibration. But, barrel thickens and barrel length would both contribute to less deflections.

That said, if you find the right load with a node at the end of the barrel, a skinny barrel can be just as accurate as a heavy barrel. A quality barrel with good rifling and tight tolerances is important too probably even more important than the deflection/harmonics part.

But that's just my take on it, and I can't shoot one hole groups .....yet.
 
Climberman;n63580 said:
I am not a match grade shooter, but I do understand harmonics and structural mechanics. Deflection is a function of Length, Modulus of elasticity, Moment of Inertia, and Force. Under direct loads, shorten the length, you get less deflection, increase the moment of inertia, you get less deflection. Harmonics makes it more complicated because you have nodes or points of no deflection under the vibration. But, barrel thickens and barrel length would both contribute to less deflections..

Yeah that....
lol

What I have been shown at DeHoff was for rimfire / black powder barrels that to drill a 22" - 30" blank. When running a wet patch after rifling, mark the shrink (tight spot). Where ever that is measure off from the far edge and hope to get 16" or more.

The shrink should be the crown. This allows the the lead bullet to exit at the tightest part before exiting the muzzle.

One question to think about is the twist rate. I find the 1/17 idea for winter to be super cool.

John
 
We've been testing a crap load of various makes and models at my range. Along with 31 brands of ammo. CZ455 Trainer has been a ringer at 400yds. We tested the Tacticool out to 300yds last weekend. Hopefully more this weekend.
 
I love my 455 tacticool with Viper 6.5-20, and my 452 ultra lux with BRNO Mach sights in a laminate tacticool stock. Made rifleman at an Appleseed with the latter.
 
JimP42;n65202 said:
I love my 455 tacticool with Viper 6.5-20, and my 452 ultra lux with BRNO Mach sights in a laminate tacticool stock. Made rifleman at an Appleseed with the latter.

No pics?

boooo
 
JimP42;n65254 said:
Does Tapatalk or VB filter out metadata in pictures? Don't want to post GPS data.

I actually have no idea on here, highly doubtful.

If you're using TT it uploads the pictures to the TT servers and links to the site here.
 
Although, I know a little about Annies, CZ's, and Win 52's. The ones that started me down the path of precision rimfire in 2010 are the ones that REALLY have the knowledge base.

I haven't had time to reply to this thread in detail until now.
I believe Tom may be referring to the Conover Crew here. I am one of the dark horses in that crowd, but I logged many hours and much personal fortune, in that veritable accuracy lab.

Heavy barrels:
It's hard to closely recreate the feel of your center-fire rifle, without a heavy barrel on your trainer. Its just a fact. I watched a preteen put the fear of God into grown men with a CZ452 Scout many many matches, but it didn't recreate the feel and function of a trainer. It was effective though ;)

CZ makes a great rifle, I've owned several. My 452 Varmint with tacticool stock had a "real feel" but was a bit light. The manners stocked version really puts the icing on that cake. They are accurate a plenty for most games and competitions. They are ammo dependent.

The 64MPR is the Cadillac of accuracy. They are very ammo specific, but all rimfires are ammo specific. The Anscutz well fed will consistently outshoot almost anything else. That is not insinuating you can buy a good score. You can buy accuracy, nothing more. Buying accuracy does not guarantee a good score, only the shooter can determine that. If you are a good shooter, you should buy the best equipment you can afford.

There is nothing quite as sad as watching a good shooter, trying to make cheap equipment, do something beyond it's ability. If I have offered to let you use my rifle in a competition, it is a compliment, it is not a slam against your equipment. You should never take such gestures as a personal affront to your financial station.

As far as I know right now, my Anscutz as it currently exists, has one sister. Those two are the only ones that exist in that configuration and amount of workup. I think there are two more in the works, or we're about a year ago.
What do I have in it? A lot
Was it worth it? To me yes.
Did I need to do that work? No
Did it improve an already excellent platform? Absolutely
How do I know? Where is my empirical evidence? Ask the guys that shoot with me. They may tell you something like this: "If Joe said it shoots better, then you can believe it shoots better."

What it "is" is more consistent. I know the secrets of the winningest guns at Conover. If you are on the edge of your seat waiting for the reveal, I'm sorry, it isn't my information to blab. I did just scare at least two people though ;)
I have given you the piece that solves the puzzle.

If you want the most out of your rimfire, you are gonna have to buy pricey ammo. I'm not even gonna tell you where to look and what to buy, every time I do I find shortly I can't buy any ammo to shoot a dang match. I know that isn't terribly helpful, but I have wrote it all over the internet for numerous years, just not gonna do it anymore. I don't like making Hitler videos as much as you guys think.

You need to buy what is right for you, and buy ammo worthy of your time. Looking for racing parts and fuel in the bargain bin is a losing proposition. You always fall victim to false economy and wasted time and money.

Maybe you don't need to win a match. In that case, work within the ability of your rifle, and judge your results against those limitations. Lead downrange with discipline and purpose is your goal. Trigger time is what makes you a better shooter, not your equipment. When you are a better shooter, equipment and good ammo can make you a dang sight more precise.

Don't scrimp on glass for a trainer. If you are going to use it as a trainer, your glass needs to hold up. If you can't trust your turrets to go up 1.2mil, up to 7.5mil, up to 12.6mil, up to, 18.3mil, and then back to zero and put a bullet hole in the same spot you started, and do that 50 times a year, it really isn't much good as a trainer.
What about holding over? If that is how you want to do it sure, I do that some too. If your scope won't pass a simple box test in April, and again in October, it is junk.
If you put $800 in a rifle, and $200 in a scope you are not approaching the problem correctly. I'd rather rig my big rifle and my trainer, with the same rails, and swap one good scope, than run a cheap scope on my trainer. I've done it. Keep a dope book on the scope and if it's worth a hoot, it'll take 3 minutes and no more than 2 shots to swap back.

There is a match at Conover on June 10th as far as I know. Come out and shoot, and see how it's done. Don't know if I'm gonna make it or not the way my pinched nerve has been but I'm gonna try.
 
Good insight @The Green Heron. I'm just starting out in rimfire competition so it's nice to hear the experienced people law down the facts. Thanks!

Oh yeah, and let me know when you're ready for a new student ;)

Maybe I should teach. With my health failing goemetrically I certainly can no longer "do".
I was just about to start back small bore silhouette but now....
Depressing.
 
I just went back and looked at this:
http://www.eurooptic.com/1416HB-T6M-Anschutz-Anschutz-1416-HB-w-T6M-Manners-stock-64-.aspx

Honestly. This is a great investment if you can actually get one.
Worth every penny. I guarantee you will never lose money on it.
I've got that much or more in mine.


They are indeed worth every penny. A good friend got into precision rimfire last year and I walked him through all the latest possible options. He listened, had the funds to get one, ordered and received one of the first ones released by Anz-NA in late May'16. It has proven to be a shooter and is an absolute joy to handle. His threaded 18" barrel is not as heavy as the MPR as the barrel is a much lighter contour. The 23" non-threaded would be much closer to the MPR for those looking for a heavier weight rifle as I believe the contour is of a heavier taper (close to MPR) plus the added 5" of barrel.

Coincidentally his serial number is only two digits greater than the ANZ64R I purchased in March'16. Mine shoots great but has a first round cold bore flyer issue that makes it impractical for hunting. His has zero cold bore shift (go figure). o_O

Joe I will try to bring him over to Conover with me the next time I can make a match (hopefully Aug or Sept). I don't run the DPRC matches anymore so I no longer have a schedule conflict the second weekend.

Yes, I was specifically referring to you and all the Conover crew as the knowledge base. You guys have done an impressive amount of research into rimfire equipment and ammo since 2009.
 
You are killing me! Time zone in Las Vegas, they probably open at 10AM our time...
 
Well I got to the range today. Just the indoor range to sight her in. She shot good too. I put a BSA sweet 22 on her. Really like the scope. Tried several different ammos( federal gold, federal standard, agulia? Super extra, and cci standard). Loved the agulia. The cci standard gave me FTE every time?? Very strange. Going to try a different patch#. All the other ammo function 100%. Hope to get out this weekend and shoot some groups.

 
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