Tuning your thoughts on slugs at low speeds? (790-820fps)

would like to hear about anyones experiences with lower speed slugs,
specifically in the 790 to 820 ish fps range.

i have been wringing out the rainson edge and trying out both barrels......

.22 barrel reg at 135bar shoots jts 18gn pellets at 900fps amazingly well. (full mag 13yd groups i can cover with an aspirin)

.25 barrel seems to love LOVE h&n 28gn slugs at 795-800fps,
and when i say love i mean LOOOOOOOOOOOVE LOL

it shoots both the .249 and .250 h&n slugs very well,
but the .250 standard hp slug (not the II version with the deeper hollow point)
is really really good.

i left the reg at 135 when i switched to the .25 just to get a baseline,
they came out at 795-800fps
out of curiosity i started shooting groups with them,
and was amazed they shot just as good and better than pellets,
and it just does group after group very consistently like this.

heres a picture of a few groups,
yes its very close range (13yds)
but for the larger caliber slugs to beat the group size of pellets,
well,that impresses the hell out of me lol

2 groups on the left are with the .250 hp II 28gn,
a 5 shot on the end,and then 2 more shots.

the 2 groups on the right are with the .250 hp 28gn,
a 5 shot on the end,and then 2 more.

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Yeah, 13 yards is CO2 pistol distance so I don’t know how much valuable data can be gathered at that distance. My P15 was a purpose built slug gun years ago but it wound up shooting 3 different pellets so well that I backed it down a little and used it as a pellet gun for longevity reasons. I occasionally will switch it to a 30 or 32 grain slug just for fun. On the pellet tune they are around 790-825 depending on the slug. It’s extremely accurate at those speeds at slug distances. Not my first choice for long distance shooting but it will do it. Try your gun at 50 to at least see if there is hope. I’ve smacked a considerable amount of critters with my gun with pellets at good pellet speeds and slugs riding in the passing lane with their blinker on. When I take the gun for squirrel in the fall, it will be shooting pellets, not pokey slugs.