Earn 13 Bullseye Bucks
List Price $14.29 Save $1.30 (9%)
Item Code: JSB177-ExactRS [PY-P-718]
|Suggested for||Target practice/Fun|
|Head Size||4.52 mm|
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Things I liked: Very consistent no damaged pellets
Things I would have changed: Bigger tin options
What others should know: These seem pretty soft so if you have a high velocity spring gun/pcp I could see lead fouling being a issue
Things I liked: Good grouping
Things I would have changed: Unsure
What others should know: I bought these pellets because they were suppose to be 4.52 head diameter. I have a TF-99 Premiere Under-Lever. I also have a very good selection of .177 pellets to go with my five .177 pellet guns. All of my pellets fit fine in all my guns except the TF-99, most pellets go in too far, and if I raise the barrel they fall out. 4.52mm is the largest pellets I've been able to find. So I bought four different tins. Most tins measured 4.48mm to 4.53mm. One tin I got only 3 out of 20 that measured over 4.50. (I am a machinist and for ten years a quality manager. I am using a Starrett 0 to 1" mic.) 20 of 20 from this tin of JSB measured 4.48 to 4.50 They fall out of the breech. BUT, they ARE the most accurate shooters in this gun. All the other pellets I have shot 5-shot groups over 1 inch at ten yards. These JSB Exact RS pellets gave me a TEN-shot group of just a half inch. This is not on a bench, this is standing up using a tripod. I tried 5 more pellets. Same hole. Confused.
Things I liked: They shoot great out of 1720T pistol. One hole at 15yards and 1/4 inch at 25 yards. Over a chrony 677 FPS average. This is too light of a pellet for the Benjamin marauder, AT 15 yards 1/4-1/2 inch groups and at 25 yards it's all over the place shooting over a chrony 1100 FPS. So just to light for the marauder.
Things I would have changed: Nothing
What others should know: It's a good pellet over all, but the crossman 7.4,7.9, and 10.5 shoot just as good through the 1720T pistol, and are much cheaper.
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What is the ballistic coefficient on these pellets?