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All Springer/NP/PCP Air Gun Discussion General > Korean Gate

JSB 34.95gr MKII HP slugs and the Sumatra .25 cal

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pepegraves:
I just bought 4 tins of these thinking they would be "ON" because I usually shoot the regular 33.95gr MKII's outta that rifle....And, I used them to plink out to 50 yds and they were great...hit everything I aimed at....but when I tried to sight them in this morning, I was in for a rude awakening....they spread out like a #4 lo brass @50 yds....
I paid a pretty penny for these ..

QUESTION: Has anyone had any good accuracy with slugs outta their SUMATRA 2500

Madd Hatter:
I have but they were cast and sized by me. I removed the barrel and pushed a slug through it. I then measured to find out the groove diameter. I cast the slugs up and sized them to.252 inches. The groove diameter measured .2515 so I'm sizing.0005 over groove diameter. Lani52 is the one who taught me that.
Shooting slugs take a bit more work to shoot accurately than pellets.

pepegraves:

--- Quote from: Madd Hatter on September 13, 2022, 12:26:59 PM ---I have but they were cast and sized by me. I removed the barrel and pushed a slug through it. I then measured to find out the groove diameter. I cast the slugs up and sized them to.252 inches. The groove diameter measured .2515 so I'm sizing.0005 over groove diameter. Lani52 is the one who taught me that.
Shooting slugs take a bit more work to shoot accurately than pellets.

--- End quote ---

Yea...thats a bit more work than I'm willing to do 😆     just a lil disappointed tho...PA is willingbto take them back so, that's good....sighted my MKII pellets back in and I'm ready to hunt....its funny...I started with the head shot and I kept adjusting to the right for a while...must've been too early for me lol ...I then went to the 🎯  on the R and was still adjusting R ....and finally got it dialed in wiith the 🎯  the L...If I hadn't flinched a couple times they'd be stacked up on top of each other.. tge target is at 50yds....gotta love that Sumatra

Madd Hatter:
What size of slugs were you trying?

pepegraves:

--- Quote from: Madd Hatter on September 17, 2022, 11:52:55 AM ---What size of slugs were you trying?

--- End quote ---

The .218 Jsb knockouts 33.95gr MKII

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