Pulsar Mount versus QD Mount ??

G Anderson

Active member
In the beginning when the Pulsar's were experiencing POI shifts, most were blaming the factory mount supplied with the scope. The fix at the time was to go to the QD mount that some vendors sold or supplied with the scopes. It seems now that the POI shift issue was actually a scope "problem"...my question is, did anyone ever finally determine absolutely that changing the mount "fixed" the POI issue? I really don't know how the factory mount could be blamed...it is heavy and rock solid when mounted properly...just curious if anyone really feels like the smaller QD mount actually fixed the problem. Thanks

Gene
 
Originally Posted By: G AndersonIn the beginning when the Pulsar's were experiencing POI shifts, most were blaming the factory mount supplied with the scope. The fix at the time was to go to the QD mount that some vendors sold or supplied with the scopes. It seems now that the POI shift issue was actually a scope "problem"...my question is, did anyone ever finally determine absolutely that changing the mount "fixed" the POI issue? I really don't know how the factory mount could be blamed...it is heavy and rock solid when mounted properly...just curious if anyone really feels like the smaller QD mount actually fixed the problem. Thanks. Gene Typically, if it is a mount issue, you will have issues all the time. You won't be able to get your gun to group. If you have a good target (non-blooming), a good rest, and a good gun and ammo, you should still be able to get a decent group with a thermal. However, as an example if you take the gun out two different days and it moves 6" but is still grouping, typically it isn't the mount unless something is banging the scope and mounts between times to knock it off. When I had POI issues with my Pulsar, I was using the Dloc mount which is regarded as one of the very best by most. I have also heard of mount issues in the past with the Pulsars. There very well could have been issues with this mount, but I can tell it wasn't a mounting issue with me. I could simply leave my scope on for 15 minutes and it would move 4-6" inches and then leave it in subzero temps and it would move 6-12 inches" low, etc. It wasn't mount related for me. I used 3 different batteries, and that made no difference. The only thing that kind of worked was leaving the gun/scope in an unheated garage all the time, and then leave it in the bed of my truck in a case and hope temps didn't fluctuate much. It was a pain. For Pulsar and their customer's, I hope the problem is truly behind them. When parts of the Northern US get really cold in the next month or so, we will probably see if indeed it is fixed.
 
The mount was ruled out in my case. As soon as I got my unit back with the update, almost all POI issues disappeared.

Although I have a QD mount now, I still choose to use the standard mount.
 
That is pretty much what I came to as a conclusion...that the mount was not the issue. Just was wondering if anyone had beyond reasonable doubt cured the problem with the mount.

Bleedsblue, I have seen you post before about trimming the battery so it doesn't fit as tight and subsequently when things warm up that no stresses are induced. I guess I would like to know, just how loose did you get it? Just a light sanding on the ends or did you actually "shave" some off?
 
I was the one who pushed pulsar to look into temperature related algorithms in their software, I also instructed them about shaving the battery. I'll try to find time to do a write up on how to trim the battery.

Simply back drag a razor blade on the battery seams where you find friction interference. When completed the battery should be able to fall off of the scope when unlatched and tilted on its side.
 


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