AncientShooter

Don't think a mod is necessary - try this: Sorry guys! I should have reloaded the page first!

AMAZING to me one of these aftermarket gun accessory businesses hasn't come up with an aftermarket pre-welded lifter for the 930....seems like a cheap upgrade item someone could make some money with!

The weld up IS a simple job - except that you have to take the receiver apart to get it out - (not a big deal). A good 'smith will re blue it after grinding it down and fitting. You shouldn't need to send the gun out, IMO. Can't really speak to the 24" vs. the 22", except the 22 points really quick compared to a 32" clays gun. I did read somewhere that Miculek likes the 24" better, but he is so good I could never appreciate what he does in a gun. I also find the gun very light, until I load it and the side saddle, but then the weight is mostly between my hands and seems OK.

Many of the current generation of target guns already have the “lengthened” forcing cone area. We have a 525 Citori in the house (wife's gun) and I know it's forcing cones are already as long as then need to be. I am told that is true! I also know that many 'value' manufacturers avoid the step to save money. It is, however, simple to measure on any gun, and it clearly made a difference on the 930. My Browning clays gun had a 2.5" cone before; 5.75" now.

Be glad to......once I find my camera...(think the wife has it for a knitting project)...although this thread: http://www.brianenos.com/forums/index.php?showtopic=112916 has a great shot on post # 5. (I followed that thread for my install!)

The really important thing is to be sure your gunsmith hones and then polishes the cone area after reaming. The smoother and shinier the better.

The following graphic explains it better than I can, but it is the area immediately in front of the chamber where the load is compressed to the bore diameter. Generally, the longer this area, the tighter the pattern with fewer fliers. I know if you Google "lengthening the forcing cone", you'll get more detailed descriptions. My 'smith has done it a lot and my pattern tests showed a positive result on the 930. My O/U is being done now. http://www.google.co...Q9QEwBg&dur=778 I would add that much of what I have read suggests that a slower compression, (Longer forcing cone), results in less deformity to fewer pellets and truer flight with tighter patterns.

My 930 JM PRO has had some work recently: Lifter welded... Forcing cone lengthened..... 3mm x 5" fiber optic front sight.... 2mm brass mid vent ball mounted on front receiver hole.... 8 shot 3gun works side saddle.... barrel clamp rail with sling QD.... Noveske flush fit sling QD on stock.... trigger polish job.... mag follower face painted neon orange.....

As regards the rear sight issue.....I have a 3mm x 5" fiber optic front sight that glows like a freakin laser when you are looking right in the end - something I felt my cross dominant eyes needed and I have been pleased with - same set up I use for sporting clays. I installed a 2mm brass ball (mid barrel) bead in the forward most of the four sight mount holes on the 930 today after polishing, filing a flat on the top and lacquering the ball. i wanted a quick index for the vent rib that I would find before I got down onto the cheek weld, and lock me in from side to side without having to check. I like this VERY much. I don't even notice it unless I look, but see it on the periphery and adjust as I settle in without thinking. Increases my confidence. $8 sight and if you don't like it, easy to reverse. Just saying....

Just got my JM Pro back from my 'smith. He did an admirable job welding the lifter and it does - as many of you said - make a remarkable difference. There is no hesitance when reloading - a smoother entry for the reloads and I don't even consider I might get bitten - HUGE improvement, (Are you listening Mossberg?) The other day, my gunsmith called and said it was done, but before I pick it up, he thought I should consider lengthening the forcing cone. We talked a bit and I do trust this kid, so I let him do it. I had taken some serious pattern shots before hand and went right to the range today to duplicate those pattern shots. Very nice improvement on the 930. Hardly a scientific study but the patterns were tighter right up to 40 yards - even up to 00 buckshot. On 25 shots at various ranges with various shot sizes, virtually ALL showed tighter patterns and fewer fliers. I thought there was less felt recoil, but that seems subjective. I think my Browning O/U sporting clays gun is next! Any of you guys do this?

Thanks dukduk! The re-load strategy makes a number of things clearer. In one match I watched, all the shooters stopped after 8 stationary clays and loaded 4 slugs for 4 steel poppers, then ran more clays with a final reload of shot. The reloads seemed what that string was all about....now I KNOW it was. The rear sight is something I guess I'll have to think on...

Two more dumb questions..... I have my gunsmith welding my liftgate so it won't bite, or as my 'smith said, " I'll turn that fork into a spoon!" But he asked if I wanted a ghost ring rear sight where the four screws fill the holes used for a rail on other 930 models. (I have a JM Pro) I have never shot a ghostring before, and am used to a single bead on a scattergun, but the idea has merit. So, my first question is : Do you guys employ a rear sight to match your fiber optic on the JM Pro, and would a ghost ring be a good choice for 3 gun? Second question: What size shot do you guys use? Do you load up based on a look at the course of fire and mix in bird shot with buckshot/slugs depending on what you see beforehand? Sorry for the newbie questions, but I have only seen 2 matches and this issue actually never occurred to me! Thanks again for your patience. Rick

Yes it absolutely did make sense and I did about the same thing, with slightly different methodology, today. In fact, my adjustment made a VERY fast cycling gun even faster. I have a Carver race Glock that should be this fast. I shot a box of birdshot with it and the gun is fast enough that I need to transition better just to keep up! Nice to have a gun I can 'grow' into. Liked it before - LOVE it now! Thank you all for the advice - really helpful group on this forum - my respects to you all.

Makes sense..Thanks!

I have a new JM Pro with the 22" barrel and want to make it a easy to load as possible. Since I am new to this maybe you guys can help. Easing the port edges makes sense, but why weld the lifter? What does that give me? Also, any tips on how to adjust the setscrew behind the trigger? That totally confuses me since the gap to the trigger's back is so large. Thanks!