Knife, just hold on to the mold for another month or so. Let's hit a 6 month mark since when I sent you that mold. 😝. Send it back when you have made 10000 slugs from it. HahaI would also like to test the new slugs from it since the ones I casted were indeed lobesided. And the device is being made as we speak. Too man projects too little time
Quote from: darkcharisma on June 11, 2019, 11:46:43 AMKnife, just hold on to the mold for another month or so. Let's hit a 6 month mark since when I sent you that mold. 😝. Send it back when you have made 10000 slugs from it. HahaI would also like to test the new slugs from it since the ones I casted were indeed lobesided. And the device is being made as we speak. Too man projects too little timeI know what you mean Duy. Todays, (last nights) was converting the hammer system in the RS to the FX system With the guide in the hammer which added 4.85 grams and adding a smaller spring inside the hammer spring to ride on the guide. Picked up another 25+ fps. It is working well. WooH00!!! I think it will allow me to lower the reg pressure in order to get better shot count. That, and I really don't need the high fpe for pest birds and vermin. The hp's open so violently, that it just isn't necessary. (Insert Devil Horns Here)! I haven't touched the mold since getting here true again. I need to cast some, and test while sending you a batch. I've been so engrossed in the HP's I'm tinkering with. Man, they are destructive. Took out a cow bird this morning when leaving the shop. Blew the sucker completely in half. Not much left for the foxes. LOL! I can send some of those too. But you probably don't want to get to liking them. I have over 400 bucks in the mold. Grrrr!!! + Ouch!
Un, mercury filled wrist weights? If they work, I NEED Them! Old age sux! Beats the alternative though.
I tested my three HPA Varmint rifles today, as is, then with the light (4 oz.) damper and then with the heavy (8 oz.) damper.... All three are regulated, shooting pellets at about 960 fps.... The results were mixed.... I tested at 50 yards, shooting from a bench with BiPod and rear bag, using each guns preferred pellet (JSB), and one other pellet, just for comparison.... These three rifles have been used for 3 or more years and have never been cleaned, so the first test of each was to shoot one mag. "from cold", then clean with 4 passes of a bore snake (brush removed)…. I shot two full mags. for each test, which means 7 shots in .30 cal, 8 shots in .25 cal, and 10 shots in .22 cal.... When I had completed the 50 yd. testing with each gun I moved out to 100 yards, to see if I could find any difference using the damper.... Groups are all measured C-T-C....My .30 cal "Bobcat" uses 45.8 gr. JSB Exacts.... The first two shots were 2" and then 1" low, and the next 5 in a nice group.... After cleaning the 7 shot group was only fractionally larger, and shot to the same POI, so the cleaning (after 3+ years of shooting) did NOTHING !!!.... The two groups after cleaning but without damper were 11/16" and 3/4".... Using the light damper the two groups were 11/16" and 7/8".... Using the heavy damper, they were 5/8" and 15/16".... The smallest group was using the heavy damper, but the most consistent groups were with no damper.... The heavy damper shot to the same POI as with no damper, but the light damper hits about 1/2" lower at 50 yards.... When I tested at 100 yards, I could not draw any firm conclusions as to the effectiveness of the damper.... The POI stayed about the same, and the group size was more affected by conditions and how well I shot.... Honestly, there was so little difference with or without the damper at 50 yards, any difference just got "lost in the noise" at 100 yards....Next up was my 2560 HPA, again regulated, shooting 25.4 gr. JSB Kings at about 960 fps.... Before cleaning the group at 50 yards was 7/8", and after there were two "fliers" before the gun settled down, producing a group of 9/16" and 7/8".... Other than the two fliers right after cleaning there was no noticeable change after using 4 passes of the bore snake.... The groups with the light damper were 1/2" and 15/16", about 1/4" lower on the target.... With the heavy damper, the groups were 1/2" and 1-1/4", about 1/2" lower at 50 yards.... Once again, the dampers produced a fractionally tighter "best" group, but the poorer group was larger than without any damper.... I tried some of the 26.7 gr. NOE Hunter pellets, and for a full mag. of 8 shots, with the light damper got a group of 1-3/8" but that dropped to 1-3/16" when I removed it.... When I tested the JSBs at 100 yards, I actually got slightly tighter groups without the damper, but not by much, maybe 1/4".... Once again, the other accuracy factors at 100 yards swamped any real difference with or without the dampers....The last gun I tested was my 2260 HPA, also regulated, shooting 18.1 gr. JSB Heavies at about 960 fps....From cold, the first two shots were 1-1/2" and then 3/4" low, and then the other 8 went into 3/4".... After cleaning there were no fliers, no change in POI, but I put all 10 into 7/16".... so in this case the bore snake appears to have helped a bit.... With the light damper I put 8 into 9/16" with 2 fliers that opened the group to 1", and with the heavy damper I had a similar result, 9 into 11/16" and a flier that made it a 1" group.... Other than that flyer, the POI with the heavy damper was the same as without any damper, but the light damper shot about 1/2" lower at 50 yards.... I tried some of the 19.7 gr. NOE Hunters, and could not see any significant difference with or without either damper.... At 100 yards, this gun grouped tighter without the damper, with fewer fliers....I attached the dampers to the bottom of my barrel immediately behind the air stripper.... I used two cable ties with the heavy damper, and just one with the light damper, pulled up really tight.... You could rotate the damper left and right but it took significant force to do that, and the dampers never moved during any of the shooting sessions with any of the three guns.... The .30 cal has a CF sleeved barrel that is 0.59" OD.... The .22 and .25 cal guns both have a 3/4" shroud over the barrel, and the air stripped is tightened slightly more than hand tight to tension the barrel.... The dampers on those guns was, of course, attached under the shroud, which is a snug fit over the back of the air stripper.... I feel that this was a fair test of the dampers on three different calibers of relative high powered pellet shooters.... The .22 is 37 FPE, the .25 is 52 FPE and the .30 cal is 94 FPE.... They were shooting their best ammo, and all three can shoot MOA at 50 yards on a good day, and 1.5-2 MOA at 100 yards when I am on my game and the wind cooperates.... I actually shot my best ever group today at 100 yards, just missing qualifying as a NUAH Master by 1/16" (all 5 in the 10 or X, 1.06" C-T-C, with the .30 cal)…. You can see the target in this months 100 yd. match....https://www.gatewaytoairguns.org/GTA/index.php?topic=158928.0I can see where you could get fooled by only shooting one group either with or without the damper, into thinking it does, or does not, work.... My conclusions from today are that there IS a difference in the weight of shot used, and it seems that a more powerful PCP may benefit from more shot weight.... The best groups in both .25 and .30 cal were shot with the heavy dampers, but only by about 1/16", and I didn't get an equally small second group to confirm the supremacy of the damper.... My .22 cal actually shot a bit better without any damper.... So there you go, take it for what it's worth.... one guy, on one day, shooting 3 guns, without damper, with 4 oz. of shot and with 8 oz. of shot.... I was starting with PCPs that already shoot very well, so perhaps not the ideal way to find an improvement....Bob
Advertise Here
Share This!