Things I liked:awesome power , incredible look , good performance , excelent penetration, the 6 shot = best rifle
Things I would have changed:nothing
What others should know:I have 12 rifle to hunting and the career 707 9mm ultra is my favorite.
Things I liked:Powerful and accurate, especially with .360 round ball. Solid and well made. This gun is very loud when adjusted to full power, but very quiet when turned down to mid or low power. If you are going to shoot it at high power it has a threaded barrel. This feature makes it easy to attach a silencer/compensator if you live where this is legal.
Things I would have changed:This gun should be a couple of pounds lighter. I also would be nice for it to have some means of telling whether you have loaded a round in the chamber. It is too easy to forget and load a second round in the chamber. Then you have to push both rounds out with a cleaning rod. This is a pain!
What others should know:Overall, I LOVE it!
Things I liked:The Ultra loads easily, fires smoothly, and has the blend of weight and ballance to makes it a hoot to shoot!
Things I would have changed:My Ultra needed several improvements to make it the fine shooting instument it has evolved into: polishing the rifling to a precise 8.95mm consistency, removing rifling in the breech that was cutting the bolt o-rings, and bevelling the lip of the barrell air inlet to allow for concentric seating of bullets without shaving lead off their lower edges. The factory o-rings for the sliding bolt seal lasted less than 200 rounds, and after some experimentation were replaced using staged 1.9 mm thick o-rings (4.8 I.D. followed by 5.8 I.D.) in order to seal the breech up tp the 2600 psi optimum pressure for this rifle. Fill the o-ring grooves with sticky silicon grease prior to slipping the o-rings on.
What others should know:As other reviewers indicate, this is a rifle for experienced pcp airgunners who have the skill to understantd the mechanics of the wheapon - or who at least have access to someone who does. The 102 grain cast Lee bullets work well, but the Hornady .36 cal roundballs are a breeze to use and are just as accurate, so why waste time melting lead when you could be out shooting for around a nickle a ball. Also, for quieter, slightly more accurate and for comparable downrange energy, shoot 60 grain Aguilla .22-SSS ammo from a quality bolt action rifle - but there will be no kick and not nearly as much fun!