Search found 22 matches

by ben
Sat Aug 21, 2010 2:56 pm
Forum: Olympic Pistol
Topic: Barrel Porting (drilling holes) to reduce muzzle-flip
Replies: 21
Views: 7920

Barrel Porting (drilling holes) to reduce muzzle-flip

Yes. This can be done and I did it many years ago on a .22 Rapid-Fire pistol which was used to collect a bronze or silver in one of the Commonwealth Games. I cannot recommend doing it. It is extremely difficult, though not impossible, to remove the inevitable burr in the bore (no matter how careful ...
by ben
Sun Oct 14, 2007 6:12 am
Forum: Olympic Pistol
Topic: FAS SP607 (and other) feeding
Replies: 6
Views: 2433

FAS SP607 (and other) feeding

Shooting Kiwi As a sometime gun designer perhaps I can cast some light. Your observations do not give me any surprise. Moving a cartridge from a magazine, or a belt, in any gun, is a difficult design problem because, for most of the travel, the cartridge is not constrained laterally. A few earlier g...
by ben
Wed Jun 27, 2007 4:06 am
Forum: Olympic Pistol
Topic: fundamentals
Replies: 95
Views: 21638

fundamentals: doing two, or more, things at once

A part of this thread has stumbled over the question as to whether you really can do two things at once. Recent research into this topic, in the context of driving AND using a mobile phone, has come up with the answer that the brain naturally queues tasks with a delay between tasks of about the reac...
by ben
Mon Apr 16, 2007 4:13 am
Forum: Olympic Pistol
Topic: Looking For Information On An Unusual Rapid Fire Pistol
Replies: 12
Views: 2905

Mangolin pistol

In a previous incarnation - 50 years ago - I was employed as a gun designer. The Mangolin pistol was, and is, in my view, the only real improvement made to the ergonomics of pistols in 500 years. 50 years ago, assault rifles were being introduced to the armies of the world. The improvement in automa...
by ben
Thu Mar 29, 2007 2:04 pm
Forum: Olympic Rifle - Air and Smallbore
Topic: funny shots
Replies: 17
Views: 3110

funny shots

It seems to me that it is expecting a lot to hope that the bedding remains OK over a period of 27 years. The quality of contact between action and bed is defined at the microscopic level. I would not expect epoxy to have that level of long term dimensional stability. There may be oil contamination, ...
by ben
Wed Mar 28, 2007 2:48 pm
Forum: Olympic Rifle - Air and Smallbore
Topic: funny shots
Replies: 17
Views: 3110

funny shots

I ought to elaborate by saying that all the sporter rifles were being used for deer stalking in Scotland and their use was invariably in the wet, which puts very severe demands on bedding in wood. Not helped by the very poor quality of commercial bedding out of the box. My resolution of the problem ...
by ben
Tue Mar 27, 2007 9:37 am
Forum: Olympic Rifle - Air and Smallbore
Topic: funny shots
Replies: 17
Views: 3110

funny shots

I have followed this thread carefully. I recall that some years ago I had a hobby activity of fixing centre fire sporting rifles whose grouping had gone to pot. Contrary to some of the posters, I found it was common for a bedding fault to group badly, but systematically. In particular, two groups we...
by ben
Tue Oct 25, 2005 4:29 am
Forum: Olympic Pistol
Topic: Rink Grip on "New" TOZ 35M
Replies: 10
Views: 2538

Rink grips

I think previous posters have only scored trivial brownie points. I have just bought a Rink grip for a new LP2 to help with a painful neck-shoulder condition, which made getting my eye in line with the sights rather difficult. The Rink product range includes a shape in which the hand form is rotated...
by ben
Mon Oct 17, 2005 5:33 am
Forum: Olympic Pistol
Topic: Sideways stability - how does one acheive it???
Replies: 12
Views: 3839

Sideways stability - how does one acheive it???

I was surprised to discover that consistent placement of the non-shooting hand is absolutely necessary - for me - to achieve a consistent NPA. Quite small changes in hand placement swings the NPA fully across the 10 metre target.
hope this helps
ben
by ben
Mon Sep 12, 2005 3:10 am
Forum: Olympic Pistol
Topic: How do I know if the grip is too small?
Replies: 4
Views: 1174

How do I know if the grip is too small?

James From here, in Scotland, your grip seems to be just the right size for your hand. Any minor lack of fit should be corrected using a suitable filler. I note that you have the ends of your fingers and thumb pressing on the grip. This is a NO-NO! Especially for your little finger. You will find yo...
by ben
Sun Jul 31, 2005 7:37 am
Forum: Olympic Pistol
Topic: Cleaning A Morini 162EI Barrel
Replies: 17
Views: 4892

pull-throughs

Dan You really should NOT use a pull through on your gun. The pull though cord will pick up abrasives which will wear your gun in the worst possible place --- the muzzle. The British army has known about "cord wear" from the use of pull-throughs for at least one hundred years. hope this he...
by ben
Mon Jul 25, 2005 5:24 am
Forum: Olympic Pistol
Topic: Footwear for pistol shooting?
Replies: 16
Views: 3348

footwear for pistol shooting?

The idea of shooting in socks is really interesting. It had never occurred to me. In a different context, I much prefer to dance bare-foot because of my much greater awareness of my ground-foot contact. I tried out this idea on bare concrete, using an air pistol. I found my shooting stance to be rea...
by ben
Mon Jul 25, 2005 5:24 am
Forum: Olympic Pistol
Topic: Footwear for pistol shooting?
Replies: 16
Views: 3348

footwear for pistol shooting?

The idea of shooting in socks is really interesting. It had never occurred to me. In a different context, I much prefer to dance bare-foot because of my much greater awareness of my ground-foot contact. I tried out this idea on bare concrete, using an air pistol. I found my shooting stance to be rea...
by ben
Mon Jul 25, 2005 5:22 am
Forum: Olympic Pistol
Topic: Footwear for pistol shooting?
Replies: 16
Views: 3348

footwear for pistol shooting?

The idea of shooting in socks is really interesting. It had never occurred to me. In a different context, I much prefer to dance bare-foot because of my much greater awareness of my ground-foot contact. I tried out this idea on bare concrete, using an air pistol. I found my shooting stance to be rea...
by ben
Mon Jul 25, 2005 5:21 am
Forum: Olympic Pistol
Topic: Footwear for pistol shooting?
Replies: 16
Views: 3348

footwear for pistol shooting?

The idea of shooting in socks is really interesting. It had never occurred to me. In a different context, I much prefer to dance bare-foot because of my much greater awareness of my ground-foot contact. I tried out this idea on bare concrete, using an air pistol. I found my shooting stance to be rea...
by ben
Sun Jul 17, 2005 7:37 am
Forum: Olympic Pistol
Topic: optimum out-of-box weight for pistol
Replies: 6
Views: 1812

optimum out-of-box weight for pistol

Further to my previous posting the LP5P is now modified. Harry Preston, www.steyr-uk.com , advised that this modification had already been carried by himself, and that cropping the barrel was unnecessary. A LP2 compensator fits directly to the LP5 barrel. I also fitted a LP2 Compact air cylinder. I ...
by ben
Mon Jul 04, 2005 3:23 pm
Forum: Olympic Pistol
Topic: optimum out-of-box weight for pistol
Replies: 6
Views: 1812

optimum out-of-box weight for pistol

Background: I am 73 and have chronic neck and shoulder pain. Physical strength has also decreased. Some years ago I obtained a Steyr LP5P and found repeatedly lifting same a real pain: fatigue setting in within 10 shots; and my grouping also was a pain. I saw a 60 shot course of fire as unachievable...
by ben
Tue May 31, 2005 3:33 pm
Forum: Olympic Pistol
Topic: Steyr LP10: adjusting muzzle velocity
Replies: 17
Views: 4497

Lubrication of hammer LP10

alexey There does not appear to be a proper cross section of the LP10. I had assumed that the hammer was sealed from high pressure air as in the LP5. Looking at the exploded diagram - I hate 'em - it seems that the valve operating rod (hit by the hammer) is NOT actually sealed so that oil could migr...
by ben
Tue May 31, 2005 4:01 am
Forum: Olympic Pistol
Topic: Steyr LP10: adjusting muzzle velocity
Replies: 17
Views: 4497

Replacement hammer spring and lubrication

alexey recommend lightly lubricate with thin oil, but without additives (PTFE), as these can make the trigger pull erratic. NONE of this oil in areas with high pressure air. glad to see my diagnosis had been correct. This was not based on previous experience with Steyr products, but was a straight f...
by ben
Sun May 22, 2005 3:06 am
Forum: Olympic Pistol
Topic: Purchase advice for beginner/intermediate
Replies: 22
Views: 4724

Purchase advice for beginner/intermediate

I shoot an LP5. I have shoulder problems with the result that the gun is too heavy. The gun shoots far better than I can! I have recently ordered a LP2 Compact on the argument that it is very easy to increase the weight, but most exceedingly difficult to make a reduction. There is a great deal to be...