Search results

If you want 6-40 x 1 hexsocket head screws: Black Oxide: http://www.mcmaster.com/#91251a414/=2ut1jb Stainless: http://www.mcmaster.com/#92196a765/=2ut1wy

Jeffrey, From your description of the problem, I think it is most likely that there is an offset between the plane of focus of your eyepiece and the plane of focus of the objective. For us older shooters (I'm 64) and particularly with fine cross hairs we tend to fixate on the cross hairs as our...

Actions and barrel tenons are right hand threads as those are easier to make on the machines typically designed for use by right handed machinists. [Note that up until well into the 20th century it was considered unacceptable in most cultures to be left handed.] With right handed threads in...

Winchester Model 70 Jewell Trigger Issues AK MAN Let us try another diagram for clarification. From what you have said, first check/file the clearance hole in the action to make sure that the sear boss on the Jewell trigger is up fully when the trigger is reset. If the cocking piece is too...

Maybe the following diagram will help to identify the critical fit areas: With the safety lever in the forward "fire" position, lifting the bolt handle rotates the bolt and the nose of the cocking piece will cam the cocking piece back compressing the firing pin spring, cocking the firing pin...

AK MAN Could you be more specific as to what you mean by "the safety will not engage"?

Jewell trigger in Model 70 Winchester (original by Winchester) I have to date done five myself. Four took less than 30 minutes each by just following the instructions for install, adjust and test safety. One took an additional 20 minutes to slightly reshape and polish the striker ramp for...

Steve M, I would hesitate to speculate on today’s prices but in 1998 I was on a design team that did a VERY similar selective induction annealing system. The system annealed the "neck" (crimp end) only of an electrical connector. The cycle time was about 0.4sec, power supply 500 KHz and 3 KW...

Molten Lead for case annealing Using molten lead works very well for annealing and is a very controllable process. You may want to check this thread http://www.websitetoolbox.com/tool/post/6mmbr/vpost?id=3169332 also. I have also experimented with Cerro-Safe insted of lead. With its low...

Diffraction Effects on Target Images First let me apologize for the delay in this promised follow-up posting. I was tied up in gun club business, wading through test data and preparing this post and its illustration. The telescopic sight must do three primary tasks to provide a useful image to...

I'm not trying to be a wet blanket about the wireless video idea but every body interested needs to be cognizant of the interference issues and also at higher power and/or with directional antennas, with the regulatory authority and responsibility of the FCC. The purpose of the FCC regulations...

Another "scope checker" Gentlemen, I'm a member of a small group of shooters that share both interest in telescopic sight and spotting scope testing. We also have all had training in optic design, professional experience with various uses of optics, and long experience in use of optics in...

POA shift measurable? Frank Sweterlitsch It is my carefully considered opinion that the extremely small POA shifts that plague the short range Benchrest shooters are not measurable at the range and further may also not be measurable in a optics lab. Jackie is probably correct that the only way...

Profit Margin versus Reputation? The following is only my opinion and I do not have inside information. With all due respect to the long (101+ years) and illustrious history of Leupold & Stevens, Inc., I don't think the issue is design capability as much as the desire to invest the company’s...

I agree with Jackie. For precision shooting a fixed power scope is less likely to become troublesome. I'm a life long believer in the KISS (keep it simple stupid) philosophy of engineering. Jay, The best I've been able to come up with is this low resolution cross section image of a March fixed...

I have not nor do I intend to take apart either of my $2100 March fixed scopes to find out how they did it. I have an itch to find out but as I am not wealthy, I will continue to retrain my curiosity. IMHO it would appear that the Deon engineers actually listened to precision shooters and put a...

Maxi Tracker 3 or 4 point? Attached is a picture of the bottom of a Shehane Maxi Tracker. The front stainless rails are 8 inches wide and run on square runners 1 inch wide and 1/2 inch high up the sides. The rear rail is 3 inches wide and also with runners 1 inch by 1/2 inch up the sides. This...

Welcome to the Geriatric Shooters crowd! Jackie I didn't realize your memory was so bad that you need all of us to remind you of how old you were. Why for me that didn't happen until I was at least ... when was that ... well I'm sure it was latter than ... how old are you...

henrya, Re: "I like seeing that your calculated Dawes limit resolution and the measured resolution correlated so closely and I bet you did too." We were not at all supprised by the correlation between the calculated Dawes Resolution Limit and the measured resolution limit. My associates and I...

Diffraction Effects Again based on an email question I've put together a document with illustrations to help explain diffraction cause and effects.