Why Not Use 175 BTHPs?

[Scalce]

I have been playing with varying bullet weights in my 10.5" 300/221 AR and I have been having decent luck using 175s in SS loads.

How come more people are not using 175s?

Is it because they don't want the loss of energy or because they are difficult to get to shoot well at SS velocities and still cycle an AR?

I haven't noticed a serious increase in accuracy between 220/240 grain SMKs and 175 grain BTHPs of varying manufacturers.

[buffetdestroyer]

I've had good luck with 175 gr. Sierra Matchkings. I use 7.5 grains of 2400.

Accuracy is sub MOA.

I don't want this as my primary load because I want it to tumble if I use it for hunting. The 175's are great for target and plinking though!
________
CHRYSLER LA ENGINE (http://www.dodge-wiki.com/wiki/Chrysler_LA_engine)

[Scalce]

Thanks for the response.

I don't hunt so really I am just punching paper and playing at the range.

I was just curious why I always see people posting about their 220 and 240 grain loads and complaining about how expensive the bullets are.

Once you work up a load and figure out your dope for a hunting load, you don't need to use the same load for trigger time and fun.

Right now I am playing with 9.5 grains of H110, 175 grain BTHPs, PMC cases,and Wolf 223 primers loaded to about 2.14".

Even with some cheap milsurp 175s I am still getting decent accuracy but I do plan to use the 175 SMKs as they are not that much more and it takes the ogive variation out of the equation so it should help shrink my groups.

I will give the 7.5 of 2400 a try as that is what I guessed would be a good starting point using Quick Load as well.