.375 ruger speer bullet selection

DK123 · Jan 11, 2022

So.. I killed a great bull elk this year with my ruger m77 .375 ruger. Shot him at 300 yards with a 250 grain Sierra gk. Hit him really well and the kill was delayed. My MV is 2600 and the bullet didn’t expand.

Can anyone tell me how much drop I can expect from the Speer .270 grain btsp if I can push it 2700 fps. I wonder if it would be comparable to the 235 grain hot cor at a higher velocity. The bc for the hot cor is .317 and the 270 grain btsp is .429. I reached out to Speer but have not heard back. I have a pile of hot cores maybe I will sell them if they don’t workout
thanks in advance
Doug

JimKirk · Jan 11, 2022

zeroed @ 100 yards 2600 fps ...300 yards -16.1"
@100 2700 fps 300 yards -14.7"

250 grain GK

235 grain Speer z@100 ....300 yards -12.8 ... 2900 fps

Orcon · Jan 11, 2022

I've got no experience with the GK but that velocity seems low. I run the 235 gr Speer and Barnes between 2800 and 2900 fps in my 20" bbl and those aren't top end loads. I've only ever shot deer with those but they are absolutely devastating out to 300 yards.

I've run the 270gr bullets nearly to 2800fps but I found the recoil to be most disagreeable in an 8lb rifle.

Depending on your attitude, if you zeroed at 225 yards it should put you about 2.5 inches high at 100, 3 inches low at 270 and 10 inches or so at 300. These are estimates I didn't plug this into a calculator because that seems like a lot of work for not a lot of return.

DK123 · Jan 11, 2022

Thanks guys. 2600 is pretty slow but it is very accurate. I will consider the .270 grain. if I site in at 3” high it’s an acceptable trajectory.

DK123 · Jan 12, 2022

Orcon said:
I've got no experience with the GK but that velocity seems low. I run the 235 gr Speer and Barnes between 2800 and 2900 fps in my 20" bbl and those aren't top end loads. I've only ever shot deer with those but they are absolutely devastating out to 300 yards.

I've run the 270gr bullets nearly to 2800fps but I found the recoil to be most disagreeable in an 8lb rifle.

Depending on your attitude, if you zeroed at 225 yards it should put you about 2.5 inches high at 100, 3 inches low at 270 and 10 inches or so at 300. These are estimates I didn't plug this into a calculator because that seems like a lot of work for not a lot of return.

Good to know you have had success with the hot core expanding at that range. I was concerned it would be hard at that range. I live and hunt at high altitudes so I may see a little flatter trajectory. I put a mercury recoil tube in my stock to reduce recoil. It really worked well.

.375 ruger speer bullet selection

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