Pellet Slug Conversion; .30 Pellet to .22

[LMNOP]

Hello,

Is anyone also doing pellet to slug conversions taking larger caliber pellets, cutting off the skirts, and then using a 3d printed jig for sanding out a spitzer shaped round? I’ve made some rolling jigs and have found this is really an economical way to test slugs without dealing with the metallurgy differences of slugs to pellets. Barrel wear around rifling reduction when shooting slugs is measurably reduced. Using a bore scope I am seeing significant land and grove wear reduction across 10,000 rounds.

 

[Stubbers]

I am willing to bet if you're not the only, you're one of them! Pretty cool concept, groups I assume are acceptable with 10,000 rounds down your bore?

Are 30 cal pellets cheaper than 22 slugs or in your opinion is their compositional make-up changing your results compared to normal .22 slugs?

-Matt

 

[Long_Gun_Dallas]

I honestly wasnt aware that airguns experinced barrel wear at all. This also comes across as extremely cost ineffective. Unless they are rounds that have already been fired?

 

[LMNOP]

Groups are decent, but not fantastic. The 220 grit in the jig I am using tends to get lead coated so I need to 3d print a sizing die to validate. I spot check every 10th round with a micrometer to validate outer diameter.

Pellet wise seems stable and more accurate under 70 yards but the resized pellet-slugs have more inertial mass and can reach out a bit further but lesser velocity comparatively.

 

[Stubbers]

Groups are decent, but not fantastic. The 220 grit in the jig I am using tends to get lead coated so I need to 3d print a sizing die to validate. I spot check every 10th round with a micrometer to validate outer diameter.

Pellet wise seems stable and more accurate under 70 yards but the resized pellet-slugs have more inertial mass and can reach out a bit further but lesser velocity comparatively.

As Long_Gun_Dallas mentioned, seems non-economical when you factor in time and increased cost of .30 cal pellets no? I must be missing something. I'd certainly prefer to buy .22 cal slugs and shoot them out of the tin or spend time weighing/sorting them for the best accuracy. But that's me.

If you like the lead composition of the pellets you're using over the slugs you've used then stay at it!

-Matt

 

[LMNOP]

Thanks for the encouragement! I am an amateur machinist, welder, and metallurgist.