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Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 Series
Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 Series
Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 Series
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Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 Series

Marsoni M251S
Sale price$116.99
Pay 4 payments of $29.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 SeriesDillon Precision caliber conversion kits allow you to adapt your machine from one caliber to another in minutes. They are a great way to maximize machine use when reloading multiple calibers. Caliber conversion kits vary by machine type, and include various parts for each machine to quickly change calibers. Please see the tabs below for specifics about each machine type.
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Quick Dispatch:

Your Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 Series orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Dillon 38/357 Caliber Conversion Kits | RL550 / RL450 Series ships.

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1925 reviews
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M
Verified Purchase
Mayyah
Houston, US
★★★★★ 5
Good for the price
Color: Black, Color: Black
Very cute, well made, it is plastic but it’s durable. Better than the higher priced item I was considering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
A
Verified Purchase
A Elkins
Alexandria, US
★★★★★ 2
Check the measurements
Color: Black
Looked cool but it was the wrong size. It was too big.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
L
Verified Purchase
Louise
Houston, US
★★★★★ 5
Useful
Color: Black
It works for a key holder, but if the keys are heavy, you may have a problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
C
Verified Purchase
Christine Ellis
Charlottesville, US
★★★★★ 5
Novelty quality plastic, gorgeous color, and sturdy
Color: Purple
I was a little surprised when I took it out of the pkg. It seemed flimsy. It holds whatever I put in any position, perfectly balanced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
C
Verified Purchase
C.Blackman
Lexington, US
★★★★★ 4
Plastic key holder
Color: Black
A little light as it is plastic, but it does the job
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026

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