I whole heartedly agree with Paul that you can shoot the fosters. You are on the right track thinking of saving some good money getting close with the fosters and then experimenting with different sabots to find what works best for you and your gun. Then it's just a matter or the fine tuning with whatever sabot you select.

You will save some money outright & upfront but it will cost you sometime and good solvent. You will need to scrub-a-dub the barrel and it's really important to do it at the range after say every 8-10 rounds or so.

I also shoot an H&R USH Deluxe (12 ga) and have spent a boatload of money trying all the different sabots. Where did I end up? I shoot Brenneke 2-3/4" Heavy Field Magnums & Brenneke 3" Gold Magnums with very good results.I'd offer quite a few deer toback me up on this but........dead deer don't talk.

My son shoots an H&R URH(20 ga) and it likes the Brenneke stuff too. But, I got a terriffic deal on ALOT of boxes of 3" Remington Copper Solids and it shoots those great.

Take a look at www.brennekeusa.com website. They tell you flat out that you can shoot nearly every one oftheir slugs out of rifled barrels. And as I don't know anyone over a 100 years old, I trustwhat they say. I think they claim to have invented the modern shotgun slug. They only started offering sabots in their product linebecause they had to grab some of the market.