Please e-mail address changes, unsubscribe requests, or questions to me. In this issue: Re: New barrel & Loads for Walther GSP 32??? Front sight size Need magazines for Unique VO/79 rapid-fire Anschutz rear sight clicks Re: Loads for Walther GSP 32??? / air pistol page??? Butt plate adjustment The problem of canting ******************************************************************** The twist for the .32 S&W Long that was referred to was in the American Rifleman, authored by Gene Young, and referred to tests he did. Unfortunately, torn-out pages I have do not refer to the year or month. There is, in letters page, a reference to the 101st Congress. He states that the factory barrel is 1:19 twist. He tried a 1:16; 1:12, and 1:10 twist. He found the 1:12 most accurate. In the 1:12 he also tried a 60 degree crown and an 11 degre crown. The 11 degree proved more accurate . The re-crowning to 11 "led to a reduction in group size of approx. one bullet diameter". I can provide xerox copies to interested people, but only a few please, as copies+postage can add up quickly. So if you'll send addresses, i'll send the copies. Regards Bill Szulga Too much of a good thing is never enough [Editor - thanks for the info. Though I'm not a pistol person, it would seem to me that the optimum twist would be highly dependent upon the velocity of the round. Going from 1:19 to 1:12 is pretty big - makes you wonder why the factory made such as fast twist to begin with.] ******************************************************************** I shoots air rifle exclusively. I go to Wolf Creek shooting complex on a regular base. There are a few good shooters. (Daniel Crews, James Nash etc.) Last week Daniel was checking out my Anschuetz 2002 CA and he found out that my front sight size was 'too' small (2.9mm). He suggested me to get a larger one (he is using 4.1mm). He has much more experience than I do, but I have been using this setup for a while and shoot better with small ring. Should I change or keep using what I have? Thanks for your time! [Editor - IMHO, you should go bigger. I would never let one of my shooters use an ap that small for air. I used to use a 3.2 before I knew better. Now I use 3.8 or 4.0. I would say 3.4 is absolute minimum. Give it a try. You will be surprised that you will perform about the same even though you think you can't center the bull in such a "huge" ring. It's all mental.] ******************************************************************** Can you suggest possible sources for magazines for my rapid fire .22 short pistol, a Unique VO/79? Don Nygord sold me the only one he had and he says the manufactor will make no more. Thanks for the UIT pub. James Cave ****************************************************************** How far does one click move the point-of-impact at 50 m? I know it says in the latest Anschutz catalogue that I have that the new, 20 click rear sights (Model 7020) will shift point-of-impact 1.1 mm at 50 m, and the 10 click rear sights (Model 6805) 2.2 mm. What sight radius did Anschutz use to determine this? I ask this because several of the shooters in my club have been complaining about how much they have to crank their sights before they notice a difference in the point-of-impact. All have bloop tubes that add at least 8 inches onto their overall sight radius, and while they like the extra precision offered by the tube, the fact they have to crank and crank to get t where they want to go is a little frustrating. I don't have this problem, of course, but rather the opposite. I'm using the old version of the 6805 on a stock 1413, and one full click seems to be moving me from one side of the ISSF 9-ring to the other (at 50 m). A half-click shifts point-of-impact from one side of the 10 ring to the other. This is a little annoying, because I'm finding myself moving in third- and quarter-clicks, which because there is no detente to keep the sights locked, isn't the best way to go. Is it possible this shift is so large because I'm expecting it to be so, and exaggerating it with my position and/or sight picture? Does anyone have a spare Anschutz International rear sight kicking around they would like to sell? Thanks in advance! Jason Jarvis Kitchener, Ontario P.S.: Just for reference sake, I averaged 1135 over three 50 m ISSF matches this summer (in my first outdoor season). [Editor - The current models are 30.3 or 31.4 inches, but it doesn't state precisely what reference points they use for that. I would have your sights checked. They may have been a little less precise back then but having 10mm/click would make it pretty darn hard to zero. Yes, you could be inluencing the large shift yourself, but I would be impressed you could do that so consistently.] ****************************************************************** I recieve your mailings and enjoy them. I hope someone sends you the information about the 32 cal barrel twist and load information soon. I want to buy a 32 soon. I am debating wether to buy the conversion kit for my Sp-20, or hold off and buy the entire gun. I do want to shoot 50 yards with it . I wondered if you know what is going on with the Air pistol home page? I have not been able to get to it for two days, I get a message that the address can't be found. Thanks again for a very enjoyable and helpful site. Fred Toro [Editor - I e-mailed the owner of the air pistol page and haven't gotten a response back so I don't know if he quit working on it or just moved it elsewhere.] ****************************************************************** I use the standard Anschutz 1913 Butt Plate System and cannot fit the butt to have complete contact. Any suggestions to fix this and get a good fit around the shoulder? Thanks. Usman sadiqahu@cyber.net.pk [Editor - 3 options that I know of. Modify the current buttplate system, purchase a different one (S&N comes to mind), or make one yourself. The latter would yield the best fit but would be the most trouble unless you fashioned it from wood - you could have one for each position.] ****************************************************************** Any shooting athlete that cants the rifle is clearly indicating that they are not yet competitively knowledgeable about their precision rifle and the operating nature of the human body. First of all the head requirement is to have the head straight up and down and looking straight through the center of the rear sight. This is true with all rifle positions and with pistol as well. Here is the problem. If the rifle stock is not made correctly or the adjustment (as in free rifle) is not adjusted correctly and the shooting athlete must cant the rifle to meet the above requirements of the head and eye. Therefore any knowledgeable athlete or coach that observes the shooting athlete canting the rifle knows from that observation that the shooting athlete is competing under an error handicap caused by a poorly fitting or adjusted rifle stock. This athlete will beat them selves in any competition. This cant (which can never be duplicated perfectly each and every shot) will give a constant movement to the Point Of Aim and therefore an active moving Point of Impact for every shot fired. This is not precision competitive shooting. Many unknowing Coaches and trainers will instruct you in the use of a cant but they are really instructing you in a method to failure and poor precision shooting. Don't let them do it to you. If the coach or instructor will not give up the cant then go find your self a new coach or instructor that is knowledgeable and a professional at being a Precision Competitions Coach. What is the corrective action: Take the standing position and hold the head straight up and down with out cant to either side of the body position. Bring the rifle to the head and in the case of free rifle make all the allowable adjustments to the adjustment mechanisms so to wrap or mold the rifle around the head and shooting position without rifle cant. Remember the head is always straight up and down. The eye must look straight through the rear sight to the center of the front sight. The Rifle now rest on the shooting position without a hard grip of any kind or manner. This is basically it for the precision shooting athlete. Such a position will remove a majority of the sway movement found in a standing position when using a cant. For those using standard rifle, consult a good gun smith and have him or her remove some of the stock material or add some material based upon the build of your head and its relationship to the rifle during competition. Standard rifle requires a stock fitting that fits both kneeling and standing. There is never justification for a shooting athlete to approach the firing line without first correctly adjusting the stock to that shooters position for that competition. Why does the stock incorrectly fit all shooting athletes when purchased....? The stock was manufactured to fit that average shooter. Like the Military rifle, the new rifle is made for a person that does not exist. No one has found the average shooter for a competition rifle or a standard military rifle. So every new rifle stock must be tailored to the body shape of the shooting athlete so as to meet the positional requirements of the shooting position and elements of balance. If any one locates that average shooter then please let the world know so the Military and every sport shooter including rifle makers (Anschutz/Walther) will know that such a person does exist.... :) Thank you Chet Skinner, Coach ISCA, USAMUA, NRA amd USA Shooting. cskinner@dol.net ****************************************************************** End of UIT Mailing List #32 Michael Ray - Systems Engineer Rose-Hulman Inst. of Tech. Rifle Coach UIT Shooting Page - http://www.geocities.com/Colosseum/1190/index.htm Michael Ray - Systems Engineer Rose-Hulman Inst. of Tech. Rifle Coach UIT Shooting Page - http://www.geocities.com/Colosseum/1190/index.htm