Thread: 308 150sst 45gr 2208

Hey guys, firstly thanks for all the info in previous posts! I’ve got a tikka t3 20” with gunworks suppressor.

I’ve loaded the above up in hornady brass, shot pretty well MOA @ 100yards.

Anyone have any idea of my FPS With this load Im guessing 2650fps from other posts I’ve read, I see I can push it up to 47grains, maybe in .5 increments, what do I need to look out for to see if it’s too hot?

Also any advice on keeping the barrel down when firing my bloody tikka jump like nothing else I’ve shot, I wrapping the sling around my arm and holding fore end and it helps!

Thanks
Scott

its working...LEAVE THE LOAD ALONE....is my advice....as to the other issue...you are on right track,will post link to an article by Nathan Foster...yip he has pinched bits from all over to create it BUT it works for me and many others....

https://www.ballisticstudies.com/Kno...at+Forend.html

Originally Posted by duckndeer

Hey guys, firstly thanks for all the info in previous posts! I’ve got a tikka t3 20” with gunworks suppressor.

I’ve loaded the above up in hornady brass, shot pretty well MOA @ 100yards.

Anyone have any idea of my FPS With this load Im guessing 2650fps from other posts I’ve read, I see I can push it up to 47grains, maybe in .5 increments, what do I need to look out for to see if it’s too hot?

Also any advice on keeping the barrel down when firing my bloody tikka jump like nothing else I’ve shot, I wrapping the sling around my arm and holding fore end and it helps!

Thanks
Scott

Are you resting the forend on a hard surface as well as holding it? I was told a rifle will recoil away from a hard surface.

You won’t notice it when shooting at an animal.much like recoil.

@duckndeer I can work this out for you if you like on quickload.

Thanks for the article great read, I use a Harris bipod yep it hold it firmly! I don’t notice Recoil when hunting but find it hard to get a quick follow up shot as it throws me off (Yet me 7mm08 barely kicks - I think it’s just the 308 tikka which are Simply too light in the stock for the calibre) If you could work it out that would be great thanks @Timmay!

Originally Posted by duckndeer

Thanks for the article great read, I use a Harris bipod yep it hold it firmly! I don’t notice Recoil when hunting but find it hard to get a quick follow up shot as it throws me off (Yet me 7mm08 barely kicks - I think it’s just the 308 tikka which are Simply too light in the stock for the calibre) If you could work it out that would be great thanks @Timmay!

Yes Tikkas can be pretty lively in the more powerful cartridges. IMO one chambered in 308 or 270 requires a suppressor, and the magnums need a brake. Given that yours is suppressed and you’re gripping the forend firmly, muzzle jump should be moderate, unless your shooting off a hard surface?

I use some of Nathan’s advice and agree with his philosophy of a firm grip on the forend when shooting lightweight rifles; I haven’t used a bipod on my 308 for years and just shoot off a daypack. But recently I dusted off the Harris, and with a good grip on the forend proceeded to shoot some 0.5MOA groups, so had to eat a bit of humble pie after that...I may look at a Javelin or Backlanz at some stage as I do dislike lugging the Harris around

MAYBE try it over a well packed soft daybag...or sleeping bag at the range and see what happens...always interesting to try both ways. if you bush stalk,try a box of bog std winchester 180grn power points,they shove rather than kick and preformance on game is outstanding.

Originally Posted by Micky Duck

MAYBE try it over a well packed soft daybag...or sleeping bag at the range and see what happens...always interesting to try both ways. if you bush stalk,try a box of bog std winchester 180grn power points,they shove rather than kick and preformance on game is outstanding.

Micky Duck does great advice, but hes in a love relationship with 180gr power points haha . My advice is now i have added a 223 to my 243 and 308 bush rifles i have found a 55gr round
does the job fine . A 100gr 243 is finer lol but a std 150gr in 308 is all you need. Esp if recoil a factor no need to go 180gr, we dont have elephants in the bush here to worry about lol

Originally Posted by deer243

Micky Duck does great advice, but hes in a love relationship with 180gr power points haha . My advice is now i have added a 223 to my 243 and 308 bush rifles i have found a 55gr round
does the job fine . A 100gr 243 is finer lol but a std 150gr in 308 is all you need. Esp if recoil a factor no need to go 180gr, we dont have elephants in the bush here to worry about lol

Yes 150s are very effective. But those chasing the extended ranges require a higher BC, which is where slippery 168s or 178s come in. Never used 180 power points but that would be an awesome bush round, they have their place

Thanks @Micky Duck I did vow and declare I’d never use a bipod again a few years back but you know how it goes.... I’ll give the pack another go! Do you have a load for me for the 180grn power points?

yeah sort of...I couldnt get the projectiles as component so went with hornady round nose sp...they seem to preform just as good at the spitting range I love to hunt. 41grns of 2208 is what Im using...magnum primer cause thats what Ive got.

Thinks to look out for as you work up ( Id leave it at that I found the 150sst to be very very frangible at 2750fps)
Stiff bolt lift, pay attention to any increase in force needed to lift and open the bolt and inspect brass case heads for extrusion into bolt reccesses and "swiping" bright shiny bits where the bolt has shaved off that extruded brass on opening.

With soft brass (federal comes to mind) this will happen early ( it even happens with their factory loads often? But with a harder brass like say Lapua if you get to this stage its over max....back off a grain at least from heavy extrusion and shavings and dont go any higher! !

Thanks @vietnamcan great info, went through another 30rounds today, using the hornady brass (once fired) I’m getting the light scraping on maybe 1/4 of the rounds but very minor, bolts a bit harder to close than normal but I’m guessing that’s because the rounds only just fitting mag so is tight in the chamber, it opens the same. The rounds shoot well tho managed 4MOA @ 400yds so quite like the load.