06-24-2023, 02:44 PM
No direct experience with that package but depending on who actually makes the Match Monster bullets your mileage may vary.
If the MM bullets are made by Nosler and are Custom Competitions rebranded my 18" Grendel likes the CC a lot, my 12.5" not so much.
If the MM bullets are made by Hornady and are their 123 HPBT bullets rebranded, my 12.5" Grendel likes them a lot, my 18" not so much.
As with any bullet/load you kind of have to take a chance to begin with and adjust as needed. When I started load development for the 12.5" I had hopes of being able to use the CCs that I used in the 18". I worked up the load ladders and never got the results I wanted. As soon as I switched to the Hornady 123 HPBT, and found the right powder charge, everything fell into place with the 12.5". Different rifles like different bullets and powder charges.
If the MM bullets are made by Nosler and are Custom Competitions rebranded my 18" Grendel likes the CC a lot, my 12.5" not so much.
If the MM bullets are made by Hornady and are their 123 HPBT bullets rebranded, my 12.5" Grendel likes them a lot, my 18" not so much.
As with any bullet/load you kind of have to take a chance to begin with and adjust as needed. When I started load development for the 12.5" I had hopes of being able to use the CCs that I used in the 18". I worked up the load ladders and never got the results I wanted. As soon as I switched to the Hornady 123 HPBT, and found the right powder charge, everything fell into place with the 12.5". Different rifles like different bullets and powder charges.