Geometric puzzlement

[Barry]

Thanks for all the input everyone, I went to the indoor range last night and put my original mounts back on and shimmed the rear one, not ideal, but I need to stop fiddling and start shooting

I have been looking in chairgun and am currently exploring the potential of BKL stuff (one of you posted a link to a dovetail droop compensator), chairgun and that bit of kit correspond nicely at 0.007". Only thing putting me off is cost and availability (add the cost of the mounts to the compensator)

Another thing I noticed about the B Square, the bottom half of the mount is able to rock from side to side, I guess because of the thread tolerance and I dont see how this movement will stop even when the caps are on and all is secure. When I have a little more time I'll put your suggestions to the test.

Many thanks

Barry

[RobF]

the bottom half of the mount is able to rock from side to side

hmm...thats odd...even without the gub screws nipped up mine have always been tight..i only nip them up just to stop the adjustment screws possibly going loose.

[Adam77K]

(one of you posted a link to a dovetail droop compensator), chairgun and that bit of kit correspond nicely at 0.007". Only thing putting me off is cost and availability (add the cost of the mounts to the compensator)

I emailed BKL about shipping to UK. Their response was no because they have an exclusive UK distribution deal with Daystate. Now looking at Daystate's site they do seem to have a fearsome markup on these BKL products. E.g. "302 BKL Scope Mounts - two piece double strap reach forward 30mm - matt black". BKL web price $70, Daystate price £83. Ouch.

[Baldie]

I emailed BKL about shipping to UK. Their response was no because they have an exclusive UK distribution deal with Daystate. Now looking at Daystate's site they do seem to have a fearsome markup on these BKL products. E.g. "302 BKL Scope Mounts - two piece double strap reach forward 30mm - matt black". BKL web price $70, Daystate price £83. Ouch.

I've mentioned this before. Even if Daystate were buying them retail, the margin's not bad. Apart from the problem I had with the B Square 30mm's, I've never seen a faulty set of rings so I doubt there are many returns.



I have the Sportsmatch User Destructions here in front of me for their adjustables. The image quality of the piccies is not so great I can replicate it for everyone to see, so I may get myself a set to do my own piccies.

I will also need to check how far the mounts need to be apart, to get the 'magic' 7 degrees .......

...

[Barry]

I also e mailed BKL and subsequently DayState. 51 quid for the Unitized 6 Screw 3/8" Dovetail 4" Riser then another 36 quid for single strap mounts 300s I think or 70 quid for 301 double strap.

With recoil less pcp I should think single strap would do the job. So around 86quid and job done.

BUT, as someone said, the .007" would only put one 'in the ball park' the scope would be half inch higher than it currently is at 1.75" sight line to bore centre, so the angle would change (according to chairgun) to .010"

Suddenly £86 seems like a lot of money to only get close

I still stand by my desire to be able to optically centre my scope and zero at 35 yards using the mounts in some way, but common practice dictates I should stick with shimming.......all of a sudden I feel a little 'retentive'

Incidentally, when I did centre the scope, I mounted it in the existing mounts and fired a few shots in the indoor range at petes airgun farm, the windage was bang on

Heres an idea!!! 50 quid for the one piece BKL jobbie coupled with SportsMatch adjustables for the fine zeroing. Bang on zero possible for just over a hundred quid.

[Baldie]

Heres an idea!!! 50 quid for the one piece BKL jobbie coupled with SportsMatch adjustables for the fine zeroing. Bang on zero possible for just over a hundred quid.

Do you need the BKL bit?

If you can wait a week, I can lend you my Sportsmatch adjustables?

...

[Barry]

Hi Baldie.
Sorry I havent got back to you, internet troubles and all that, using someone elses for now.

Thats jolly decent of you mate Ill take you up on a try of those if you dont mind. I've pm'd you my phone number and home address.

Many thanks.
Barry

[Baldie]

Hi Baldie.
Sorry I havent got back to you, internet troubles and all that, using someone elses for now.

Thats jolly decent of you mate Ill take you up on a try of those if you dont mind. I've pm'd you my phone number and home address.

Many thanks.
Barry

You sent me a mobile number and a home phone number (that doesn't look right). I have texted your mobile.

I await your reply.