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Forum Index > Rifles general discussion > Annealing monolithic bullets

Annealing monolithic bullets

20 Jun 2025
@ 05:59 am (GMT)

Connor Huntbach

Hi all, I wondered if anyone on here has experimented with annealing monolithic bullets? In some areas I’m forced to shoot non lead ammunition and have had so so results with barnes 139gr lrx. I know that traditional cup and core bullet performance can be altered by annealing as per the information in Nathan’s book, but wondered what would happen with a monolithic bullet. Im not expecting miracles but thought it might just slightly help performance? Cheers, Connor

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20 Jun 2025
@ 07:06 am (GMT)

Nathan Foster

Re: Annealing monolithic bullets
Hi Connor, I have spent some time studying this. An issue surrounds the fact that due to material thickness, mono needs a lot of heat to cause any change. This level of heat will of course melt plastic tips. The short answer therefore, is to seek a better mono design withinor regardless of the limitations of this material. If you are able to, perhaps try one of the Cutting Edge projectiles.

All the best.
20 Jun 2025
@ 05:45 pm (GMT)

Connor Huntbach

Re: Annealing monolithic bullets
Hi, thanks for the reply. Unfortunately on most contracts in the uk non toxic factory ammunition must be used meaning that I can’t home load. I haven’t seen cutting edge projectiles loaded into factory ammunition here. There is a uk based company producing high bc fragmenting bullets called yew tree bullets that I would like to try, but again it’s not available in factory ammunition
20 Jun 2025
@ 05:45 pm (GMT)

Connor Huntbach

Re: Annealing monolithic bullets
Hi, thanks for the reply. Unfortunately on most contracts in the uk non toxic factory ammunition must be used meaning that I can’t home load. I haven’t seen cutting edge projectiles loaded into factory ammunition here. There is a uk based company producing high bc fragmenting bullets called yew tree bullets that I would like to try, but again it’s not available in factory ammunition
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