Chief...are you suggesting that Ruger is gun shy about just changing over the 1022 barrels to H2 and offering them for sale? And the other manufacturers too?ChiefDave said:Chief Says:
(4) Fired 100 rounds thru each rifle - functioned flawlessly.
We found : 96/17M2 barrels fit and work perfectly on the 10/22lr . Need no
other modfications to shoot the 17m2. In short - ( drop in process ).
TOTAL cost to do a 10-22lr to 10-17M2 = under $100.00
ps. Friend is a certified gunsmith and was rather amazed as to the simplicity of the swap. He also saw all the duhh's about excess recoil , ect.
now he LAUGHS !
All the VQ barrels tested her that I have seen also had the VQ bolt and they (VQ) say that is neccessary for safe operation. Their 17M2 bolt is 22% heavier then their 22 lr bolt and comes with different springs. This is about bolt interia and slowing bolt opening by increasing bolt inertia. VQ and EABCO were the first two companies to offer 17M2 kits. This why they have been so trouble free, because it is offered as a system instead of just changing barrels. Cynics might say it would be another way to make money but that just ain't so. The "Simple" blowback operation is really a very delicate balance of propulsion (powder gases burning) against resistance (bolt weight, recoil spring and hammer spring tension). If any of these things are off you either get a gun that doesn't work (too much inertia) or will "work" but beat the thing to death (not enough inertia). Again. Call VQ and ask them what their opinoin is of just using their barrel to convert. You will be in for an interesting conversation I'll bet. Same with EABCO, this another company that has for years built several different guns from scratch as well as doing alot of work with Thompson Center converting Contenders and inventing whole lines of cartridges. These people are not dummies and they and VQ have been at it for a long time. I remember E. Arthur Brown Company from over 25 years ago. You don't get the rep that VQ or EABCO have by pulling the wool over peoples eyes.RWAL said:It would seem as if many of the semi-auto conversion problems have to do with liners, either DIY or in factory barrels like WP. At least thats what the feedback here would indicate. Don't recall any negative feedback using VQ barrels for instance.
Do you know who ATK is? One of there products is the solid rocket boosters for the space shuttle. They also own Federal, CCI and and Hercules powders and are the largest in the world.RWAL said:I think the barrel makers are not offering the heavy bolts as a money making sceme but to cover their rear ends from liability after one of the ammo companies came out with a warning (don't blame them one bit). I still say the majority of problems are liner related. How can my gun and scores of others out there be functioning perfectly with an increasing number of rounds through them and no issues?
I believe the 17HM2 has no steeper pressure curve than a Stinger and I don't think it is as hard on a reciever as a Stinger or Aguila Hyper Velocity round. I wouldn't be surprised if the problems in testing this round arose from testing with liners installed in factory barrels. Nothing against anyone using one of the "approved" conversions or anyone being careful and waiting for more testing to be done if thats your cup of tea fine, in the mean time I will continue to enjoy shooting this great round that doesn't work and enjoying every minute of it.
Was that mod using the "adjusted chamber" on the high standard aguila 17 barrel?ugly stick said:ChiefDave, In the thread [no give up on 17m2 ] You made the claim that you were using an improved chamber, and were trying to get a barrel manufacture to test it. You stated this as a cure for the many troubles reported with this conversion. Is your current change in opinion based on on those results? Are the reasons for the warnings resolved? Was that mod. just a waste of time?