28 Nosler twist rate

[AODoutdoors]

In 2020, I purchased a custom 28 Nosler that the buyer backed out of. It's a fantastic gun, bought at a discount, and I'm very happy with it. I've only fired 40 rounds through it so far due to various reasons, but now I'm planning to start developing a load for it.

When I bought it, I was informed that it was throated for "the 190 Berger" bullets, but I am 90% sure I was told that it has a 1:8.5 twist rate.

I live in the Rockies and usually shoot at elevations above 5,000 feet.

My question is: will 195-grain Berger stabilize? What about the 177 Hammers?

 

[AODoutdoors]

PS. I know berger says 1: 8, and so does HH, but im just curious if im going to have to settle for a 160-170 grain bullet. Which IMO defeats the purpose of having a 28N.

 

[wapitibob]

Measure the twist so you know.
An acquaintance does all the '28 load dev for a rifle builder and uses both the 195's and 177's in his personal 28's. All the barrels are 1:8 but I would grab a box of the 195's and some N570 and test.

 

[TheWhitetailNut]

https://bergerbullets.com/twist-rate-calculator/ @ 3150 you have an SG of 1.47 with 1.5 being stable. 1:8.25 would be better, but its probably fine.

 

[AODoutdoors]

Thank you!